Text

Responds to NRC 830126 Ltr Re Justification for Continued Operation & Info for NRC Categories I.B,I.A & B Re SER for Environ Qualification of safety-related Electrical equipment.Thirty-day Response Completed
	ML18130A387
Person / Time
Site:	Surry
Issue date:	03/09/1983
From:	Stewart W; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Varga S; Office of Nuclear Reactor Regulation
Shared Package
ML17054D434	List: ML17054D432; ML18130A387; ML18130A389; ML18139C255; ML18139C256; ML18139C257; ML18139C258; ML18139C260; ML18139C261;
References
	085C, 85C, NUDOCS 8303110282
	Download: ML18130A387 (219)
	v • d • e

e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261

w. L. STEWART VrcE PRESIDENT NUCLEAR OPERATIONS March 9, 1983 Mr. Harold R. Denton, Director Serial No. 085C Office of Nuclear Reactor Regulation PSE/JEW:nh Attention: Steven A. Varga, Chief Operating Reactors Branch No. 1 Docket Nos.: 50-280 Division of Licensing 50-281 U.S. Nuclear Regulatory Commission Washington, DC 20555 License Nos.: DPR-32 DPR-37 Gentlemen:

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TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 In a letter dated January 26, 1983, the NRC transmitted to Vepco the Safety Evaluation Report for the Environment Qualification of Safety-Related Electrical Equipment at Surry Power Station, Unit Nos. 1 and 2. This letter requested that Vepco reaffirm the justification for continued operation within thirty (30) days of receipt of the letter and submit information for NRC Categories I.B, II.A, and II.B (as presented in the Franklin Research Center Technical Evaluation Report -

TER) for which justification for continued operation was not previously submitted.

Attachments 1 through 6 provide the Vepco response to the January 26, 1983 letter. The response for each equipment type will contain any data required to support that response, or refer to another applicable equipment response which contains the required data. Also enclosed in the appropriate attachment are equip-ment qualification files (Qualification Documentation Reports - QDR's) which provide information with regard to equipment not previously submitted. These will be referenced by the applicable equipment response sheet.

Additionally, during the search of Surry site records in preparation of this response, it was discovered that certain items listed as Category IIIA, "Exempt from Qualification", were, in fact, us.ed in safety-related systems. Attachment 7 provides the Vepco review of these equipment items. These equipment items should be reclassified as Category I.A, "Equipment Qualified."

e e VIRGINIA ELECTRIC AND POWER COMPANY TO Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Page Two Attachments 8 through 15 are equipment file packages (QDR's) which are submitted in support of specific equipment items identified in Attachments 2 and 5. These QDR's have not been previously submitted to the NRC. Please note that only one (1) copy of Attachments 8 through 15 is forwarded. Addi-tional copies will be issued with the Vepco 90-day response to the January 26, 1983 letter.

This completes the thirty (30) day response requirements of the January 26, 1983 letter. A response to the letter with regard to plans for qualification or replacement, and the schedule for accomplishing proposed corrective actions, will be provided by May 6, 1983.

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r,. W. L. Stewart Attachments cc: Mr. James P. O'Reilly, w/attachments 1 through 7 Regional Administrator Region II 101 Maretta Street, Suite 2900 Atlanta, Georgia 30303

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' VIRGINIA ELECTRIC A.ND POWER CO].IPANY TO Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Page Three ATTACHMENTS Attachment l: Unit l: Response to NRC Category I.B Equipment Qualification Pending Modification Attachment 2: Unit l: Response to NRC Category II.A Equipment Qualification Not Established Attachment 3: Unit l: Response to NRC Category II.B Equipment Not Qualified Attachment 4: Unit 1: Response to NRC Category I.B Equipment Qualification Pending Modification Attachment 5: Unit 2: Response to NRC Category II.A Equipment Qualification Not Established Attachment 6: Unit 2: Response to NRC Category II.B Equipment Not Qualified Attachment 7: Unit l and 2: Category III.A Equipment Re-Reviewed Attachment 8: QDR-5437-205-01: Valcor Valves and Gordos Limit Switches, Unit l Attachment 9: QDR-5437-245-0l: Valcor Valves and Gordos Limit Switches, Unit 2 Attachment 10: QDR-5437-241-01: Rosemount Transmitters Models ll52DP & ll52AP, Unit 2 Attachment 11: QDR-5437-201-01: Rosemount Transmitters Models ll52DP & ll52AP, Unit l Attachment 12: QDR-5437-78-01; Cutter Hammer 480V Motor Control Centers; Unit 2 Attachment 13: QDR-5437-17-01; Cutter Hammer 480V Motor Control Centers; Unit l Attachment 14: QDR-5437-131-01; Continental Wire & Cable Company 600V & lOOOV Cables; Unit 2 Attachment 15: QDR-5437-47-01; Continental Wire & Cable Company 600V & lOOOV Cables; Unit l

DOCKET [10. S0-280/231 .. VEPCO TECH,!IC/\L EVALUATIOf'l REPORTS ENVIR0Nf1EfH/.\L QUALIFICATIOfl OF SAFETY RELATED ELECTRICAL EQUIPt1EfJT Rec'd w/ltr 3/9/GJ ... 0303110282

- NOTICE-THE ATTACHED FILES ARE OFFICIAL RECORDS OF THE .

. DIVISION OF DOCUMENT CONTROL. THEY HAVE BEEN CHARGED TO YOU FOR A LIMITED TIME flERIOD AND MUST BE RETURNED TO THE RECORDS FACILITY

. BRANCH 016. PLEASE DO NOT SEND DOCUMENTS CHARGED OUT THROUGH THE MAIL. REMOVAL OF ANY PAGE(S) FROM DOCUMENT FOR REPRODUCTION MUST BE REFERRED TO FILE PERSONNEL.

DEADLINE RETURN DATE

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--*- TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 .

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30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 1983 MARCH 9, 1983 ATTACHMENT 1 UNIT 1: RESPONSE TO NRC CATEGORY I.B EQUIPMENT QUALIFICA !ION PENDING MODIFICATION TER ITEMS 81 84-88 109-110 111 Except for those items* addressed in this attachment, the replacement commitment and Justification for Continued Operation provided in Sections 7.1 and 7.2 of the 90-day Response Rev. 4- remain valid. This attachment addresses all changes that resulted from a complete review and updating of replacement plans.

With respect to the terminal blocks listed in Section 7.1.11 of the 90-day Response, all terminal blocks in safety related circuits inside containment have been replaced with qualified Raychem splices as stated in Section 7.1.11.1. We have completed review _of terminal blocks outside containment and have scheduled replacement of all unqualified blocks in. safety related circuits with qualified blocks.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT

TER Item No~: 81 TER Category: Ib

Description:

SOV FOR PRESSURIZER RELIEF VALVE ACTUATION

. Manufacturer, Model: Laurence, 330WA742DC Tag No (s).: SOV 1456-3, 1455C-3 Worksheet No (s).: 6-195 arid 92 QDR No. : None*

Location: RC-47A DISCREPANCY The 90-day response did not provide justification for continued operation for Laurence SOVs.

RESPONSE

The February 1982 plant inspection determined these valves to be ASCO type 831654E, for which justification of continued operation was provided in Section 7.2.2 of*

the 90-day Review. Replacement is still intended.

30 DAY RESPONSE TO SER &' TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No. :

TER Category:

Description:

84 Ib SOVs FOR RADIATION MONITORING AND PRIMARY GRADE WATER TO PRESSURIZER RELIEF TANK \

Manufacturer, Model: Not determined Tag No(s) .: SOV-RM-lOOA, SOV-1519A Worksheet No(s).: 6-170.and 189 QDR No. : None Location: AB-2B DISCREPANCY The 90-day response did not provide identification of these sovs.

RESPONSE

The February 1982 plant inspection determined these valves to be ASCO. types 8320Al2 and 8320Al02°, for which justification of continued operation was provided in.'

Section 7.2.2 of the 90-day Review. Replacement is still intended.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION

- COMPONENT TER Item No. :

TER Category:

88 Ib SURRY l

Description:

SOV FOR PRIMARY PLANT VENT AND DRAIN ISOLATION Manufacturer, Model: ASCO, Model NP8320A175E Tag No(s) .: SOV-DA-lOOA Worksheet No(s).: 6-162 QDR No.: 5437.;_ 01-01 Location: RC-3B DISCREPANCY TER reviewed this component as an unqualified valve to be replaced. In the Rev. 4 worksheet the specified model number erroneously contained an H ins~ead of the 8.

RESPONSE

_ This is __ a __ gualif ied NP-series replacement valve as identified on the worksheet. Othei: valves--of this series were assigned to Category IIc in the TER. Replacement is not p lannea.*

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 109 TER Category: Ib

Description:

ACCELEROMETER FOR ACCIDENT MITIGATION (TMI ITEM)

Manufacturer, Model*: ENDEVCO, Model 2273AM20 Tag No(s) .: YElOOAl,2; Bl,2; Cl,2 and YE-101Al,2; Bl,2 Worksheet No(s).: TMI 10.3-9 thru 10.3-18 QDR No. : future Location: RC-4 7A DISCREPANCY This is a new equipment item for TMI purposes.

Qualification testing has not been completed.

RESPONSE

The_gualification test report for this equipment is not yet available. ,We continue to believe that the equipment is the best*available for the purpose, and have no knowledge of type test failures that would compromise its capability for qualification.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 110 TER Category: Ib

Description:

HARDLINE COAXIAL CABLE FOR ACCIDENT MITIGATION (TMI ITEM)

Manufacturer, Model: ENDEVCO Model 3075M6 Tag No(s).: Low Noise Cable Worksheet No (s).: TMI 10. 3-19 QDR No. : future Location: RC-4 7A DISCREPANCY This is a new equipment item for TMI purposes.

Qualification testing has not been completed.

RESPONSE

_T}J.e qualification test report for this equipment is not yet available. We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise its capability for qualification" ,

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category: Ib 111

Description:

CHARGE PREAMPLIFIER FOR ACCIDENT MITIGATION (TMI ITEM)

Manufacturer, Model: UNHOLTZ-DICKIE Model 22CA-2TR Tag No(s).: YY-UMS-lOOAl,2; Bl,2; Cl,2; 101Al,2; Bl,2 Worksheet No(s).: TMI 10.3-20 thru 10.3-29 QDR No. : future Location: RC-47A DISCREPANCY This is a new equipment item for TMI purposes.

Qualification testing has not been completed .

RESPONSE

The qualification test report for this equipment is not yet available. .' We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise its capability for qualification .

TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 1983

,MARCH 9, 1983 ATTACHMENT 2 UNIT 1: RESPONSE TO NRC CATEGORY II.A EQUIPMENT QUALIFICATION NOT ESTABLISHED TER ITEMS 3 42 8 46 9 47 10 51 13 55 14 57 20 104 32 106 34 107 36 115 38 116 41 117

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

3 IIa PRESSURE TRANSMITTER FOR R.S. PUMP DISCHARGE (PAM)

Manufacturer, Model: FISHER-PORTER, Model SOEP1031BCXA Tag No (s).: PT-RS-156A,B Worksheet No(s).: 6-272, 6-273 QDR No. : None Location: SFGD-1 DISCREPANCY This is PAM equipment which was urider review at the time of the 90-day Rev. 4 submittal. Qualification was not established .

RESPONSE

This equipment will be replaced by .qualified. equipment within the schedule established in 10CFRSO. 49. _ In the interim, due to equipment type similarity, justification for continued operation is provided in the 90~day conclusions section 7.2.4 for this equipment type. The TER classifies other equipment of this sort in Category Ib, Equipment Qualification Pending Mqdification.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

8 IIa

Description:

ELECTRICAL PENETRATION Manufacturer, Model: Amphenol Type IA, IB, and IC, Spec. NUS-41 Tag No(s).:

Worksheet No(s).: 6-43, 44, and 45 QDR No.: 5437;.. 59-01 Location: RC-18B DISCREPANCY The TER identifies concerns in the following areas:

A. Similarity between equipment and test specimens B. Aging and qualified life C. Temperature/pressure test profile D. Spray E. Radiation

RESPONSE

The attached pages discuss these concerns in detail.

It is concluded that all of these concerns are resolved except Aging and Qualified Life. As recommended in the QDR, the penetrations should be included in a surveillance program. The TER assigns other equipment of this sort to Category IIc. -

ATTACHMENT TO SURRY 1 ITEM 8 AMPHENOL PENETRATIONS A. CONCERN: (1) Similarity Between Equipment and Test Specimens (page 2 of TER) .

(2) It is not clear why _the manufacturer was not contacted to determine the applicability of the test reports. It is noted th.at.Amphenol has provided test documentation to other plants, i.~., Calvert Cliffs, Trojan, San Onofre, Davis Besse and ANO (page Sf of TER)

RESOLUTION:

The Amphenol penetrations used at Surry are of the canister type, rather than the unitized header design supplied for *later plants such as Davis Besse and AN0-2.

Copies of ten references are attached documenting con-tacts with Amphenol to obtain copies of suitable test reports for the canister design (which they could not pr-o,(1de) or for the uni ti zed header design (which were ultimately obtained directly from Toledo Edison and Arkansas Power & Light).

Additionally, the referenced QDR contains substan-tial documentation relating the canister and unitized header designs. In particular, the "Design Evolution"

- report included with the original Amphenol proposal in Section 2b of the QDR provides a detailed description of Amphenol's penetration design evolution from canister to unitized header. The photographs and drawings in this report, together with the drawings in the Proposal, clearly establish that at the time Surry p-enetra--f1ons were fabricated the- two "designs employed the the same connector modules, insulation materials, potting compounds, and sealants; only the structural metallic components in which these items are mounted and related welds differ.

Amphenol's Design Verification Test Report, included in Section 3d of the QDR, summarizes the reasons for evolving from the canister to the unitized header design (page 1): "The unitized header assembly (UHA) offers the advantages of a lighter, more compact unit than the canisters which have been used heretofore and also pro-vides for versatility and interchangeability of compon-ents. In addition, the UHA promises to considerably reduce the required field installation effort."

Sheet 10 of the QDR, reproduced on page Sf of the TER, documents additional comparisons performed by NUS to verify the similarity between Surry equipment and the test specimens used for the test reports employed by _the QDR .*

Surmnarizing, the manufacturer was contacted repeat-edly to obtain applicable test reports. In the absence of complete test reports for the canister design used at Surry, design similarity to the tested unitized header penetrations was established using information pro-vided by the manufacturer. ,Test reports for the unitized header penetrations were obtained and used to establish the qualification of the Suiry penetrations. This effort adequately determines similarity between the plant equip-ment-and test specimens in conformance to tpe DOR Guide-

- B. CONCERN: (1) Aging Degradation Evaluation (page 2 of TER)

(2) Qualified Life or Replacement Schedule Establishe~- (page 2 of TER) -

(3) No aging evaluation has been conducted (page Sh of TER)

RESOLUTION:

Sheet 11 of the QDR, reproduced on page Si of the TER, summarizes the thermal cycle test in Amphenol report 123-1275 but does not provide an Arrhenius ~alculation to predict a qualified life. Clearly such a.calculation would predict a very long life: for example, using the

- conservative activation energy of 0.7 ev-developed on sheet 13 of the QDR, the one hour of thermal testing at 400°F corresponds to over 1,000 years at the compartment ambient of 105°F.

The QDR concluded that the evidence is not sufficient to justify a 40 year qualified life, and an Ongoing Aging

Surveillance Program should be performed. This deficiency by itself would not cause the penetrations to be classi-fied in TER Category IIa. Category IIc, "Qualified Life Deficiency," would be appropriate *

C. CONCERN: (1) Temperature/Pressure Test Duration (TER page 2)

(2) Temperature/Pressure Required Profile Enveloped by .Test Profile* (TER page 2)

(3) Note 5 states that two referenced tests envelop neither the peak temperature nor entire dura-tion, while a third referenced ti:=st which ex-ceeds the peak temperature does .not have *ade-quate duration.* (TER page Sj; test and plant profiles reproduced on pages Sk *through Sn).

RESOLUTION:

This concern primarily reflects the fact that in 1972 the industry did not conduct 120-day .LOCA tests; secondarily, the peak temperature in the Davis Besse LOCA test (the most closely related test to Surry .LOCA conditions) is slightly lower than for Surry~ This con-cern is not considered significant for the reasons that follow.

The Surry peak LOCA temperature for the penetrations is 280°F for 30 minutes. It decays to 150°F in the next 30 minutes, then to 120°F by the end of two days and remains at 120°F for the balance of the 120 day post-LOCA required operating period; Attachment No. 2 of the QDR presents a series of

Arrhenius calculations to show that the Davis Besse LOCA test is more severe than the Surry LOCA. This is shown by converting both profiles to equivalent time at 120°F, using a conservative actiation energy of 0.7 ev. The calculations show that the Davis Besse test corresponds to an additional two months of post-LOCA operation at Surry after the r*equired

120 day operating time. The two LOCA profiles, shown in Figure 13 of the QDR, do not differ significantly, and this approach is not considered to represent an abusive use of the Arrhenius technique.-

Since the Davis Besse test did not bound the Surry.

peak temperature, the QDR also referred to Amphenol's "Maximum Credible Accident" test. In this test the penetrations experienced 300°F for 15 minutes dropping to 250°F for the balance of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . The thermal aging test discussed under the aging concern exposed the pene-trations to seven hours at or above 300°F; this test was performed in dry air rather than steam. These two tests provide substantial evidence that threshold effects or other adverse behavior will*not occur in the small portion of the Surry LOCA peak not enveloped by the Davis Besse test .

With respect to the concern that Arrhenius calcu-lations should not be used to extrapolate high-tempera-ture, saturated.steam exposure to low temperature, oxygen-rich operation, two points are noted: First, in Attachment No. 2 of the QDR it is evident that most of the "credit" for post~LOCA operating time derives from testing at or below 180°F, which does not reflect a steam environment.

Second, the aging just.if ies many years operation at am-bient temperature, based on the oxygen-rich thermal aging test.

It is noted that the QDR contains.an error in pre-seriting LOCA test results. For the Davis Besse test both temperat~re and duration values used are incorrect because the test procedure rather than the test report was used.

The TER presents correct conditiohs.

In spite of the error the results of _the calculation in Attachment No. 2 of the QDR remain valid (lower temperature and longer time tend to offset), but the QDR will be corrected.

Summarizing, the justification for LOCA qualifica-tion of the penetrations is considered valid.

D. CONCERN: (1) Spray (page 2 of TER)

(2) "Boric acid was mixed and boiled to make steam. No spray was used." (page. Sj of TER)

RESOLUTION:

The direct impingement forces of droplets from con-tainment spray nozzles become insignificant relative to LOCA pressures beyond one or two feet from the nozzle, The Surry penetrations are located no closer than several

.feet from spray nozzles. Thus the spray test is con-sidered to have adequately simulated the Surry LOCA en-vironment even though the solution was not directly sprayed through a nozzle into the test chamber.

E. CONCERN: (1) Radiation (TER page 2)

(2) Note 4 challenges the qualified radiation dose of 1.03xlo8 rads claimed in the QDR (TER page Si)

RESPONSE

The TER presents (on page Sh) documentation from the Hanford laboratory showing that, although portions of the test container received 1.03xlo8 R, other portions received as little as 1.22xlo7 R. The TER further pre-sents on page Sh a caution that radiation exposure was quoted in Roentgens and would have to be converted to rads to reflect absorbed dose.

The required radiation dose for the Surry penetrations is 7.44xlo6 rads (40 years plus LOCA). The conversion from Roentgens to rads for the organic materials of con-cern is unlikely to vary from 1.0 by more than ten to twenty. percent, so the qualified dose is at least lxlo7 rads. This exceeds the plant environment.

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- Z2S Franklin Street Boston, ~,~ss~chusetts 02107 Attention= A. W. Goldnan> Consultant Electrical Division

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Subject~'; Qualificaiton Tc~t of Connector in Type* IA> TIA

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I & IIJ Penetration Asse~blies

Reference:

Your Ti't-X of 4*8-71

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Gentlemen;

In anfur to Stone & l1ic~stcr' s qucs tion, the c.onne:tors provided I

h ..l*ve not b~i:.n qu~J ific~ltion tested.. However, the design of these connectors is* !"'.."1:-"ed upon the re qui rcncnts of nili tar)' ~per.;i fics.tion No. MIL-C-5015 which i6cludes environmental testing. Conncct~r --- -1 .

de,ign is such that.at .l~ast on~ and in sonc cases, t~o silastic conponcnts arc proYidcd 1n the connect,.:,r to fr:.edthru 1 nterfacc.

Th-i~ tj*pc of in tcrfa<.:e has been proven a,leq1,13 te to meet the en-vi T*

onmentc1l rt'-quirer..ents/ of Mll,-C-S015. ,\1_50> additional capc1biUty:

to withstand elevated tcnpcraturcs, is providl~d in the silicone mstcrisl used for t~c

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A copy of MTL*C*SblS is sttached for your r~vicw. Obviously, the tests outlined in the spec arc not ba5t~d on tht'- '\lccitlent" condition in question I hut I think ~ useful conpa.Tison can be oadt~.

Shoul~! )'Oti require v*erificoth)n testing,., it csn _be pcrforrae_il at additional cost. : \ /

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DISCUSSION:.

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ACTION ITEMS:

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a RESEARCH P<_ACE ROC'<VILLE. MA::::YLAND 20850 30'1 SGS-7010 No.------

Amphenol Sams-Bunker Ramos Corporation 9201 Independent Avenue Chatsworth, California 91311 ATTN: :Mano Aaron

Subject:

Penetration Qualification Documentation*

Gentlemen:

Confirming our telecon of April 24, 1981, please send me a complete set of qualification documentation for Nuclear Applications on Power, Thermocouples, Instruments and Tri-axial Penetrations.

Thank you for your kind assistance.

Very t ~ r yours, l

.. *') .

>1 ~-

f. R. sc:Aano

~

Staff Engineer

**---** -***-... * * *- "**'-"**-****--*** --*-** o.*** _..,,.,_,. _ _ _ _ _ _ _ n- **-~'-**- ****~* *-*---* . _ . . . . . . . _ . - . . . . , ** , - * * - * *

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TELECON NOTE Time: _ _ _ _ _ File: 5437 --4-:-rO--*

Date: 5/5 / 8J

. -*** *-* -**-----. *-* -- R-:--J :---cro\vei-1------**of:____ -* D. G. o 'brien -

Between:

J. Solano

(..;_ ._L 1 (NUS)

And: :

DISCUSSION:

I told Mr. Crowell that the report #Cl9QA061 on _Amphenol penetration does not include the test on Rad. and chemical spray exposures. He told me that this report was prepared a long time ago and at that time they did not have the facility to do rad. and spray test.

He will find out if some tests were conducted on radiation and spray tests and will call me back.

cc: Nick Garg

s. -Kasturi

--------------- -- ------------s-437" -7L-- iJ'--/-C,------ --------------

TELECON NOTE * -

Date: S- / .f_/ <is' I Time: * / 2* P M* File: _ _ S._4_:S--'-7------"~=--*~--'----- - - - -

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And: N. ~- t:ilJtUi / .J" .$ofa..v...o. (NUS) 7 DISCUSSION:

ACTION ITEMS:

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Date: Time: /2- So PM File: S4 5] - /-0 /4.10~

Between: Ri r. tJ ~uj L.!:>-1.A.A. b of: - VEPCo

And: - Ntc.k. GARG (NUS)

DISCUSSION:

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Data: *_5 /J_/8J Time: / 0 *30 A/1 File: _S_,_L/_,.,;J..,_f.:_._4....,_*_~...;_&_ _ _ _ __

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DISCUSSION:

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ACTION ITEMS:

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N *Gr+R..~. - ~

Bu'1ker Ramo Ccirpo*ation -** - --

92D1 Independence Ave

C-'-,a!swor:h. Ca!1forn1a 91311

213/341-0ilO

.+r( .: . .

-**- - ------ ---*---- May--29-,--1981------***----* BJA:5:1:049 NUS Corpora ti on 4 Research Place

~

Rockville, MD 20850 Attention: J. R. Solano, Staff En~ineer

Reference:

Your request for Qualification-Oocumentation for Nuclear Applications on Power, Themocouples, Instruments and Triaxial Penetrctions.

Technical Reports 123~2045, 123-1?68 and 123:-12_69 BUNKER. .

R.AMCl

Dear Mr. So 1a no:

Because the referenced reports were prepared for Toledo Edison and Arkansas Power and Light Company, it is necessary for you to obtain their pennission prior to our releasing the reports. The documents are available and will be sent to you after approval has been received.

As previously quoted to you, our minimum order value is $250.00.

Upon receipt of the releases from the Utilities and your P.O. for

$250.00, the reports will sent immediately.

Th.ank you for your interest in Bunker Rar.io. We look forward to hearing from you.

Sin~erely, BUNKER RAMO CORPORATION Amphenol North Al'j]erica Division SAMS Operation

//~

/t) Jo Annstrong Nuclear Product Manager

',J BJA:bln

I

==-----. ,__,... __ . __ ,. ~ _....,,-. -* ..... -- -**-------~*** .. -.-*-------- - . -- *..... -**--********* _ _._. --* .. -... - ' .-.- ----*-* ***-* - -- - ----=*:c_ I

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 10 TER Category: IIa

Description:

ELECTRICAL PENETRATION (THERMOCOUPLES)

Manufacturer, Model: Amphenol Type IV, Spec. NUS-41 Tag No {s).:

Worksheet No {s).: 6-4 7 QDR No.: 5437- 59-01 Location: RC-18B DISCREPANCY

{Refer to Surry 1 Item 8) (

RESPONSE

(Refer to Surry 1 Item 8)

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 13 TER Category: IIa

Description:

FLOW TRANSMITTER FOR LOW HEAD INJECTION HEADER (PAM)

Manufacturer, Model: ROSEMOUNT Model 1152 DPS Tag No (s).: FT-1945, 1946 Worksheet No(s) .: 6-277, 6-278 QDR No.: 5437~201-01 Location: SFGD-1 DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provid~d.

RESPONSE

The QDR listed under COMPONENT was prepared s-ubsequent to submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 14 TER Category: IIa

Description:

FLOW TRANSMITTER FOR COLDLEG SI (PAM)

Manufacturer, Model: BARTON, Model 386 Tag No(s) .: FT-1961, FT-1962, FT-1963 Worksheet No(s) .: 6-276, 6-275, 6-274 QDR No. : None Location: RC-27B DISCREPANCY This is PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. Qualification was not established .

RESPONSE

This equipment will be replaced by qualified equipment within the schedule established in 10CFR50.49. In the interim, due to equipment type*similarity, justification ,

for continued operation is provided in the 90-day conclusions' section 7.2.5 for this equipment type. The TER classifies other equi~ment of this sort in Category Ib, Equipment Qualification Pending Modification .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

20 Ila LEVEL TRANSMITTER FOR CONTAINMENT SUMP (TMI ITEM)

Manufacturer, Model: GEMS Models XM54853, XM54854 Tag No(s).: LT-RS-151A, LT-RS-151B Worksheet No (s) . : 6-265, 6-266 QDR No. : future Location: RC-2 7B DISCREPANCY This is a new equipment item for TMI purposes.

Qualification testing has not been completed.

RESPONSE

This equipment item duplicates item 106; 90-day worksheets 6-271 and 6-272 cover the same equipment as TMI worksheets 10.3-30 and 10.3-31, respectively *

., __ ,..,_ .. *- ., .. ~:....- ..... 30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No. : 32 TER Category: IIa

Description:

600 VOLT, .CERRO CROSS LINKED POLYETHYLENE INSULATED CABLES

. Manufacturer, Model: Cerro Wire and Cable Company .

Tag No(s).: Spec. Nos: NAS-1;20,NA-312/1312,: and NAS-3.187, NA-,-3187/4183 Worksheet No (s) . : 6-32, 6-.33 QDR No.: 5437.:. 50-01 and 5437-5.1-01 Location: RC-3A DISCREPANCY (See TER Item No. 36)

RESPONSE

(See TER Item No. 36)

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

34 IIa 300 VOLT, CERRO .CROSS LINKED POLYETHYLENE INSULATED CABLES Manufacturer, Model: Cerro Wire and Cable Company_

Tag No(s) .: Spec. No. NAS-430, NA-392/1392 Worksheet No(s) .: 6-35 QDR No.: 5437-53-01 Location: RC-3A DISCREPANCY (See TER Item No. 36)

RESPONSE

(See TER Item No. 36)

30 DAY RESPONSE TO SER&* TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No. : 36 TER Category: IIa

Description:

1000 VOLT, CROSS LINKED POLYETHYLENE INSULATED CABLES .

Manufaci:urer, Model: Cerro Wire & Cable *company Tag No(s).: Spec. Nos: NUS-325, SN-246, NUS-362, SN-1246, NUS-381C, SN-446 and NUS-381E,*SN-1447 Worksheet No(s) .: 6-37, 6-42a, 6-38, 6-39 QDR No.: 5437~55-0l Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-*

bility of the*test ~eports to the subject cables.

RESPONSE

Cerro Wire and Cable Company correspondence**

included in the referenced QDR, we.re re-reviewed and the applicability of the test reports to various cables is established in the attachment of this TER ITE No. 36.

Per IEEE Paper dated May, 1969 "Insulation and Jacket~

for Control and Power Cables in Thermal Reactor ;Nuclear Generating Stations" the XLPE insulated are designated in radiation class 3 (8.8xloB Rads) and recommended for nuclear use for safety related equipment.

This equipment should be classified in Category Ia, "Equipment Qualified" as was done for item 45 and 3S*in Surry Unit #1

ATTACHMENT TOTER ITEM NO. 36 OF VEPCO SURRY UNIT #1

1.

Qualification of Cerro XLPE Cables Following is the surrunary on Cerro XLPE. cable qualification in regard to FRC evaluation:

lOOOV, XLPE Cables: (TER ITEM #36 for Unit #1 & 73 for Unit #2) lOOOV, XLPE cables were bought under the following 4-different specifications:

i) Specification No. NUS-325, (P. 0. #SN-246) , dated July 30,69.

ii) Specification No. NUS-362, (P. 0. #SN-1246) ,dated Feb. 17,70.

iii) Specification Nao Nus.:...381C, (P.O. #SN-446) , dated Jan. 22 March 22 J- 71 iv) Specification No. NUS-381E, (P.O. #SN-1447/1246), dated April 131- 1971 June 10 _

All the above cables were covered in QDR-5437-55-01 for Unit No. 1 and 5437-134-01 for Unit Nao 2o Qualification is established as follows:

i) Per Stone and Webster letter, dated Dec. 12, 1980, to Rockbestos (attached) and the purchase order,_

the cables -under .

Spec. NUS-325, P.O. SN-246 were bought,from Dec. 15, 69 thru July, 23, 70 Spec. NUS-381C, P.O. SN-446 were bought from July 19, 1971 thru Aug. 23, 1971 Spec. NUS-381E, P.O. SN-1447 were bought from Aug. 18, 1971 thru Sept. 7, 1971 Spec. NUS-362, P.O. SN-1246 were bought from June 19, 1970.

thru March 8, 1971 Therefore, all the above cables were shipped from Dec. 15, 1969 thru Sept. 1971.

ii) Cerro letter dated Aug. 1, 1969 (included on page* 3b of the referenced QDR) indicates that all the lOOOV XLPE cables will be "Pyro Trol-IIIII control cables in accordance with the VEPCO specifications. These were manufactured by Cerro Company per their Specification No. B,SS-_3::_70_1 o_:L_ll/l/6!L_(pa,qe_.3b of the of the QDR) with the exception of thickness. Thickness was in accordance with IPCEA Standard.

The Specification No. RSS-3~701 indicates that the insulating compound used was flame-retardant, chemically cross-linked polyethylene.

iii)Cerro Wire & Cable Comp. letter dated Aug. 20, 1969 (Page 20 of the referenced QDR) indicates that the cables manufactured were* "Pyro-T.rol III" cables*

which were *tested by FRC Report No. F-C2404-0l, dated June 1969~

iv) Franklin Report No. F-C24-04-01 was prepared in June 1969.

It included only radiation testing upto 2.5:x:107 rads, humidity testing of 6 hrs, and steam pressure test@ 62 psig for 15 min., and cooleddown to 150°F in 30 min.

Four samples were tested from product code 644N30 and 655N30 - series (four diff. batches).

v) We procured one.more Franklin Report #F-C2857 dated Sept. 1970 in which they tested 8 different types of Cerro cable. They included one sample of ."Pyro-Trol III" cable also with the same product code 655N30 series (30

mils of flame retardant cross-linked polyethylene insulation thickness). This report addressed radiation (from 55 Mrad thru 179 Mrad), humidity, steam press. & chemical spray test for 7 days.

The spray test of seven days is quite severe to justify the LOCA requirement of the plant (see the *attached analysis).

- 2.

Our QDR will be revised to reflect the review of the subject cables per these reports and the Franklin Report

F-C3798 which is used to qualify .these cables will be deleted.

300V & 600V, XLPE Cables: (QDRs-5437-50-01,51-0.l.,53~01.for ,Unit #1&

QDRs:-5437-118-01,119-:-0l,121-0l--Unit #2 Originally these *30ov* & 600V, XLPi cables were bo~ght for N. Anna power plant but later were transferred to Surry.

power plant for the required use.

These were bought under the following 2 different specifi-cations:

i) Specification No. NAS-120, (P.O. #NA-312/lj12), dated Oct. 196~ thru March, 1972.

ii) Specification No. NAS-3187~(P.O. #NA-3187/4183), dated Oct. 11, 1973.

iii)Specification No. NAS-430, (P.O. #NA-392/1392), dated June, 1974.

Qualification of cables in Spec. NAS-120, NAS-3187, &

NAS-430 is addressed in QDR #s. 5437-50-01,. 5437-51-01

& 5437-53-01 respectively for Unit #1 (QDR #5437-118-01, 5437-119-01, 5437-121-01 for Unit #2) .

Qualification is established as follows:

i) Per-Stone. & Webster letter, dated Dec. 12, 1980, to Rockbestos and the purchase orders the cables were

supplied during the following period:

Cables under Spec. NAs,.,.120; P.O. NA.:...312/1312 - June 23, 1972 thru March, 1978.

Cables under Spec. NAS.:...3187, P.O. NA-3187/4187 - May 21, 1976 thru Nov. 1976.

Cables under Spec. NAS-430,. P.O. NA.:..:392/1392 - June 24, 197 4 thru Aug. *197 8.

ii) Rockbestos Comp. wrote a letter to S&W on Feb. 21, 1979 which indicates that the cross-linked polyethylene cables supplied under P.O. NA.:...392 were certified Class IE which are qualified.to LOCA. They also enclose the qualification report for Firewall III cables, dated July 7, 1977 which covers these cables.

Although the letter indicated P.O. #392 (spec. no. NAS-430) because all the cables were bought in the same time frame it has been concluded that all the c~bles in all the three specifications were co.vered by _this report.

Cerro Cable Company revised the *same qualification report in Nov. 26, 1979, Dec. 8, 1980 and Dec. 23, 1980. (Ref.

27A) and called the same samples with the same name Firewall III cables with the insulation description as chemically cross-linked polyolefin instead of cross-linked polyethylene. They also provided their specifi-cation of Firewall III cables #RSS-3-021 *. In Pkg. #

5437-51-01 we used one report for XLPE cables which was also prepared by Rockbestos in May, 1976 for the same Firewall III cable.

I From a detailed review of all the *above mentioned reports it has been concluded that Cerro Cable Co. prepared all 1 cables prior to 1978 by using chemically cross-linked polyethylene.

NRC Concerns

1) In reviewing the qualification cables FRC reviewed the various QDRs for the cables.The following table reveals the discrepancy:

e

. FRC REVIEW SHEETS Right Applicable QDR #s

s. No. Cable Spec. No. ITEM # QDR #s Unit #1 Unit #2 Unit #1 Unit #2 Unit #1 Unit #2 1 NUS-325, 362, 36 73 5437-53-01 5437-118-01 5437-55-01 5437-134-01 381C, 381E 2 NAS-120 32 46 5437-53-01 5437-119-01 5437-SO-Ol 5437-118-:0l 3 NAS-3187 32 46 5437-53-01 5437-119-01* 5437-51-01 5437-119-01 4 NAS-430 34 44 5437-55-01 54 37-55-,'0l. 5437-53-01 5437-121-01

- This is the only right QDR FRC reviewed for the right cable~

2) FRC's general comment .is to get the applicability of the specific test report from the. vendor.

In this regard as discussed in .Sec. 1 & 2 above we found the letters from the vendor which describe the material used for the subject cables and applicability of _the test report.

Conclusion:

By reviewing various test reports on Rockbestos XLPE cables from _1969 thru 1981 we found that all the :cables manufactured by them, have successfully passed the radiation and LOCA test, irrespective whether it was chemically or irradiationally cross-linked. Based on this finding we have no discrepancies in the qualifica-tions of the cables used in Surry _Pow.er Station.*

This clarification of cable qualification should preclude*

FRC concerns regarding the construction method used for the test cables, and the applicability _of the test reports as referenced.

n ;c1e,,r- 5"C)

Copy to:

SCBrown, Jr. SCRossier CWilbur 1-/.8 - 2_,

Attn: EGLifrage-2 HWDurkin ABanerjee (VEPCO INTERNAL DIST. TO BE DAPiccione PReilly MADE BY VEPCO IN ACCORDANCE CECole WPC/12 WITH NOPPS MANUAL) ESherwood LWBrown;-Surry-3 JMcCann EBroderick/C Files GJBurroughs EBroderick/Job Bk JHBarnhart General Files JFinnimore PBienick WBDodsbn ISMacFarlane Mr. J. R. Kushner Vice President/Technical Director December 12,1980 The Rockbestos Company J.O. No. 12846.44 195 Church Street New Haven, CT 06510

Dear Sir:

IE BULLETIN 79-0lB ENVIRONHENTAL QUALIFICATION OF EQUI;eME!!T SURRY PO¥!ER STATION - UNITS l &*2 VIRGINIA ELECTRIC AND POWER COHP.Afn'.

NRC IE Bulletin 79-01:B, "Environmental Qualification of Class IE EquipMent,"

issued to operating plants on January** 14, 1980, outlines the qualification parameters for the environmental qualification of Class IE instrumentation and electrical equipment operating within these plants. With reference to your telephone conversatior. with our Mr. I. S. 1-{...acFarlane C'n December S, 1980, we request any and all qualification test reports you can furnish o~ the following cables you supplied for VEPCO's Surry Power Station Units 1 and 2.

1. 600 volt contro~ cable supplied to North Anna but utilized at Surry.

a.; Cable purchased under Stone & Webster P.O. ?*:o. F.A-3187/4187 with a Specification No. NAS-3i87 (Reference Mr. P. Reilly's letter to Mr. W. J. Patterson dated October (, 1980). The following additional information is provided:

(1) Cable supplied under NA-3187 originally had a Cerro order nqmber of 80805 which was subsequently changed t~_52313.

The order addressed 16 items,which were shipped between May ~l, 1976, and November 4, 1976.

(2) Cable supplied under NA-4187 originally had a Cerro order number of 80806 which was subsequently changed to 52314.

The order.addressed 16 items, which were shipped between May 21, 1976, and November 4, 1976.*

b.* - Cabl.e purchased under Stone & Webster P.O. No. NA-312/1312 with Specification No. NAS-120 *

(1) The items purchased under NA-312 were shipped between June 23, 1972, and September 14, 1977, and consisted of

. the following Cerro order nwnbers:

2 December 12,1980 Cerro Order No. Change to P.O. No. NA-312 Items Involved 21sn Original 1-19 22950 CH 3 20-23 24640 CH 5 21A 25231 CH t, 1 72655 CH 7 l 73555 CH 8 1,2,4,9, 80330 CH 9 i-15 50411 CH 14 SA n

51816 CH 1

.1.0 9 60741 GP. 24 1-4 6::S603 CE 2.7 11 6390.:. CH 28 2,4,5,7,9 7051:!. CH 33 5,9 72107 CH 36 1,2,11,18 t2) The items purchased under NA-1312 were shipped between June 23, 1972, and March 9, 1978, and consisted of the following Cerro Order Numbers:

Cerro Order No. Change to P.O. No. NA-1319 Items Involved 21522 Original 1-19 22949 CH 3 20-22 25320 CH 4 1 72654 CH 5 21B 73554 CH 6 1,2,4,9, 12,18,19

JRK 3 December 12,1980 Cerro Order No. Change to P.O. No. NA-1319 Items Involved

.80331 CH 7 1-15 50412 CH 13 5A 51815 CH 17 9

. 60742 CH 2.3 1-4 63604 CH 26 11 63904 CR 27 2,4,5,7,9 70511 CE 32 S,9,12 71205 CF. 36 l,2,ll,18 7i20.3 CH 39 2,3,4,6,7,9

2. lOOC volt control cable supplied to Surry.

a. Cable purchased unde:r Stone &. Webster P.O. !~o. SN-246 with Specification No. NUS-325 (Reference 'Mr. P. Reilly's letter to Nr. W. J. Patterson dated October 6, 1960). The cables were shipped betweer. Deceriber 15, 1969, and July 23, 1970, and con-sisted of the following Cerro order nwnbers:

Cerro Or~er No. Change to P.O. ~~o. SN-246 Items Invo 1 ved EG 936.GS Original 1-17 70820 CH l 18,19

b. Cable purchased under Stone & Webster P.O. r-,c. Sl~-446 with Specific~tion No. NUS-381C (Reference Mr. P. Reilly's letter to Mr~ W. J. Patterson dated October 6, 1980). The order, shipped under Cerro Order No. 11529 between July 19, 1971, and August 23, 1971, conais~ed of two items.

c. Cable purchased under Stone & Webster P~O. No. SN-1447 with Specification No. NUS-381E (Reference Mr. P. Reilly's letter to Mr. w. J. Patterson dated October 6, 1980). The order, shipped under Cerro Order No. 12328 *between August 18, 1971, and September 7, 1971, consisted of one item.

d. Cables purchased under Stone & Webater P.O. No. SN-1246, which were a.hipped between June 19, 1970, and March B, 1971, con-sisted of the following Cerro order numberaz

JHK 4 December 12,1980 Cerro Order No. Change to P.O. No. SN-1246 Spec. No. Items Involved 71611 Original NUS-362 1-17 71917 CH 1 .NUS-362 3,4,10,12, 15,16,17 7i~! 7 CH l NUS-325 1e 72406 CF 2 NUS-362 19,20,21

74329 CH 3 NUS-362 3 74521 CH 4 NUS-381 3,4,6,20 12423 CH 7 't-1JS-325 18 20946 Field (lrdered NUS-362 2 new items All of the cal.Iles discussed above must be proven to be operable before, during, and after exposure to the following environments:

40 Year Life Conditions:

- . tor Tempera t ure:

C.onctuc 9D°C Integrated ?.adiation (Gan:l!Ul):

Accident Conditions:

1.3 x 10 7 Rads Duratior.: 120 days Tempezature: . 275°F, 0-30 Minutes 275-150°F, 30-60 Minutes 150-120°F, 1-48 Hours 0

120 F, 2-120 Days Pressure (PSIA}: 58.7, 0-:30 Minutes 58.7-1.2.7, 30.Minutes - 48 Hours 12.7, 2-120 Days Relative Humidity: 100 percent Chemical Spray: H B0 (2,000-2,200 ppm B) 3 3 Buffered to pH of 8.5-11 NaOH, 4 Rours Integrated Radiation (Gamma):* 2.4 x. 10., Rads

JHK 5 December 12,1980 We appreciate your cooperation in this matter, and request receipt of this material by January 5, 1981. If you have any question regarding this infor-mation, please contact Mr I. s. MacFarlane at (617) 973-0013.

Very truly yours, 9-1cf&

J. H. Barnhart Principal Electrical Engineer IS1".::PBF

ANALYSIS OF LOCA TEST Verification.of.? days LOCA.Test (Described.in FRC -.Report No. F-C2857 dated Septernber.1970) Equivalent to the 'required operating time of 120 :day LOCA As shown on Fig. No. 10 .the test profile ABCDEF envelops the plant LOCA profile AGCHIJ for 7 days.* The *following analysis shows that the effect of test profile is* more severe than the required plant prQfile.

As evident from the Fig. 10 the plant arnbieht temperature falls to 150°F after one hour and to 120°F after 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months . For conservatism we assumed 150°F LOCA temperature for all the 120 days of LOCA.

The object of this analysis is to show that the effect of the test profile CDEF is equivalent or more to the required 120 days at 150°F (assumed for conservatism).

The first hour of the test profile which envelops the required profile of the plant is neglected and only 11 hours1.273148e-4 days 0.00306 hours 1.818783e-5 weeks 4.1855e-6 months of the test (profile CD) is converted to 150°F by using Arrhenius extrapolation.

a) Profile CD (Referring to Fig. 10)

Arrhenius equations:

_[ (T2-Tl)

-K

.Tl T2 T

X where T = time at an accelerated temperature= 11 hours1.273148e-4 days 0.00306 hours 1.818783e-5 weeks 4.1855e-6 months X

T = equivalent time at lower temperature= to be calculated La

~ = Activation energy, EV (1.13 for XLPE per EPRI NP-1558 Final Report, Sept. 1980, Appendix B)

K = Boltzmann's Constant= 8.617xlo 5 EV/°K T = Elevated temperature= 276°F = 135°C + 273 = 408°K 2

T. = Required temperature= 150°F = 65°C + 273 = 338°K 1

Substituting all the values 1.13 (408:...338) 8-.617xlo-Sx408x338 11 = TL e

Solving:

TLa = 343 days

b) Profile EF (Referring to Fig. 10)

T X

= 7 days. at 160°F TLb=. 7 days (assumed same for conservatism)

Total Profile CDEF = TL = 343 :+ 7 = .350 days > 120 days

Conclusion:

i) As analyzed in above calculations it is obvious that the condudted test is equiv~lent to* 350 days of _LOCA at 150°F which is about 3 times the required operating time of 120 days after LOCA at 120°F.

ii) A solution of Borated water (1720 ppm of boron as boric acid) was sprayed throughout the test.*

Considering the above it is concluded that the condudted test is more severe than the required conditions of the plant.

LOCA PROFILE [Ref.: S&W Calculation

'No. 12846.44-US(B)-052-1 J NOTE: The seven day conducted LOCA test is equivalent for Zone RC-3A to 360 days at 150°F (see analysis). Hence it is more severe than the re-Ot--~--10 ACTUAL TEST PROFILE (Report No. F-C2857, dated Sept. 1970, quired LOCA period.

Page 5 thru 9)

LOCA/MSLB TEMPERATURE TRANSIENT Rev. 2 FIGURE 10 Sheet 16 (CERRO. 1000V XLPE INSULATED CABLES) QDR-5437-55-01 Surry Unit. 1

-1lo* 10* 1ol 1ol 10* I .. 10~ , I 10* 10*

( 12. hrs) -- ------

Time After LOCA/MSLB (seconds) (7.5 days)

_LOCA PROFILE Ref.: S&W Calculation No. 12846.44-US(B)-052-1 J

[ for Zone RC-3A o--~~o ACTUAL TEST PROFILE (Report No. F-C2857, dated Sept. 1970, Page 5 thru 9)

Rev. 2 LOCA/MSLB PRESSURE TRANSIENT Sheet 17 FIGURE lOA QDR-5437-55-01 Surry Unit 1 (CERRO lOOOV XLPE INSULATED CABLES)

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

38 Ila 1000 VOLT CONTINENTAL CROSS LINKED POLYETHYLENE INSULATED CABLE Manufacturer, Model: Continental Wire & Cable Tag No(s).: Spec. No. NUS-420, SN-1463 Worksheet No(s).: 6-42 QDR No.: 5437- 60-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-bility of the test reports to the subject cables.

RESPONSE

Continental Wire & Cable (Anaconda) correspondence letters included in the referenced QDR (included in attachment to this TER item also) were re-reviewed and the applicability of the test reports to various cables is established in the attachment of this TER Item No. 38.

Per IEEE Paper dated May, 1969 "Insulation and Jackets for Control and Power Cables in Thermal Reactor Nuclear Generating Stations" the XLPE insulated are de-signated in:radiation class 3 (8.8x108 Rads) and recom-mended for nuclear use for safety related equipment.

This equipment should be classified in Category Ia, "Equipment Qualified'~

ATTACHMENT TOTER ITEM N_O. 38

. VEPCO SURRY UNIT #1 QUALIFICATION OF 1000V, XLPE Continental Cables The qualification of .lOOOV, Continental cross linked polyethylene insulated cable is established in QDR~5437~6~~01.

1) These cables were bought under specificatioh .no. Nus~420 (SN-1463) in November 1971.

2) Attached Anaconda (same as Continental) letters dated July 14, 1978 and July 11, 1978 (also inbluded in referenced QDR on page* 3a) indicate that they used cc-2.210 FR-XLP compound for all their cross linked polyethylene cables which they supplied to VEPCO for Surry :Power Plants.

3) Anaconda supplied the *physical properties of CC-2210 cross linked polyethylene (used for Surry order) after various environmental conditioning, simulating a LOCA incident.

They also provided the radiation resistance curve vs the tensile strength and elongation which are good for 600V .

cables thicknesses listed in Table I of Attach. *3 for section 3a of referenced QDR.

4) In attachment no. 3 of page 3a of the referenced QDR

.5437-60-01 for Unit #1 (5437-130-01 for Unit #2) per Table I they supply 600V XLPE cables from 25 *mil's thickness to 78 mils of the same compound, qualified under the same curves which they provided with their July 11, 1978 letter.

5). As stated on page 11 of Section No. 1 of QDR-5437-60-01 (QDR-5437-130-01 for Unit #2) the insulation thickness of the compound used'. for the subJecE-----~ .

cables is 45 mils,which is in between the values listed above in item 4. This indicates that the radiation curves and other physical property curves are applicable to this cable also.

==

Conclusion:==

By considering the above facts we conclude that, because the same compound is used for the thicknesses listed in Anaconda's specification, the same qualification reports are applicable to these cables as to those ~~ich qualified 600 volt X~PE Conti-nental in the same QDR-5437.;..60-0l. (5437-130-01 for Unit #2)

This clarification of the cable qualification should pre-clude FRC concerns regarding the construction methods used for the test cables and the applicability of the test reports as referenced.

July ll, 1Si8 Stvne t ~~biter tr.zi=eeri~g Co.

P.O. Dox 2:!2S Bv~ton, ~~. 02107 At'tn:

P.e: Vt~:O/S1.!rrV Gcr,e.rati.ng.St~ticni Co:n~ine.:ita.i ~ire a.nj Ca.ble ?Q*s Sl-i .. 265 a.nd S.S-1i.ss.

In reS!>Ott~e ~o yo~r r-equest fer additi~n~ infor::ation c~

CC-~210 TR-XU' ple~se find at"tachcd our Gata &heet of August, 1971 er.titled "i'h:'sietl ?:-op~r-ties of CC-2210 Cro~~-lillke-a Pt J.~ter Va:i~s I:nvircr.:-er:t-al Co:.eitioni.rig, Si.:~.:..t:ir.i a L.O.C.A. Incidc.:it itl a N~cl~a:" Gc.ner~tL~g Sta~ion~. We

!l:.!"thcr sta~e th~t a rt-Y..l.P ineu.laticn ~~~e~ia..l desigr,.atc~

CC-~210 w~5 usa~ on tbc a.l>ove refe~c~d ordar **

Very truly you.rs, C0h'7IJ,;""!1i1'AL WIF.t

CABL!:

9o.-t <;. Ca.",f.w..o Paul s. Ca...."'C!.ello Chief I:r.t.i..neer PSC:'tG cc: File

}-.tt~ch:~:nts-2

. ~

ANACONDA{\

July 14, 1978 Stone t Webster Engineering Co.

P.O. Box 2325 Boston, MA 02107 Attn: Howard Redgate Re: VEPCO/Surry Generating Station

Dear Mr. Redgate:

In response to your request, we hav~ 6hecked our files and find that all instrumentation cable manufactured for the referenced project, of the FR-XLP a~d Hypalon variety, which was ordered in the time period of 1969 through 1971, was manufactured with a cross-linked polyethylene insulation material designated as cp:2210.

c-.i, Very truly yours, CONTINENTAL WIRE & CABLE Q..;1 S. ~"JL~

Paul S. Cardello

Chief Engineer PSC:ts

cc: File

.. I I

"laconda Company ContJnental Wlro I Cable Corp. Wire rind Cable Divis it)!) P. 0. Box 1sa:3 Yorlr.. Pennsylvania 17405 n 7/792-2644

F:iYS1CAL t?.on:r:rrrs er CC-221C. CP.OS5-L!::,~n f'! JJ"'u?.

\'A.PIO:J.$ !t:*,*!::n,~!~:'!'AL co,~D!7!~,:z1:~

S!!"!L'LL.TI!~G .,\

L.o.c.;..* !:.C:lD~,! Il: A J(l!Cl.-!.i~~ Gn:r:;:J,!l!ZG STAT.IOI~

7~~~!L'::

- o-*si >

---r:,;:,)

"r1 ri,*~ * ~T"I~

1:cm; 2&Jl.;(I. S50 S':U'-~/E-~F.!C J..C!t>l* 2?90

1i S 0 26~0 22H!

.. 1710 2SB0 323 2200 2CO 1600 6S J \..'!?.J: S/<li?l'C 116 (i) _/.J:~, *oir WALL CC-::-_2210 *

. :D* 120 HOU?.~~ so _PS!;fsrf,/i8{o1,1.,o-,:r;!)OBY l?O P.CUR I~.!:?.SION 1

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TENSILE STREN&-TH {P.S./.) -----,----

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30 DAY RESPONSE TO SER & TER ELE°CTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT, TER Item No.: 41 TER Category: IIa

Description:

600 VOLT CABLE.

Manufacturer, Model: The Okonite Company Tag No(s) .: Spec. Nos. NUS-i65B, 365C, 365D, and 374, and 375 Worksheet No(s).: 6-50, 51,.52, and 53 QDR No.: 5437~56-0l and 5437-62-01 Location: RC-3A DISCREPANCY The TER combined cables with three different construc-tions -- ERP and two types of cross-linked polyethylene insulation -- into a single item .

. RESPONSE Three different responses are provided, following for the three types of cable. In each case the response justifies classification in TER Category Ia, Equipment Qualified

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 41 a TER Category: IIa

Description:

600 VOLT OKONITE CROSS LINKED POLYETHYLENE INSULATED.CABLES Manufacturer, Model: The Okoni te Company .

Tag No(s) .: Spec. No. NUS-365B, SN-1380 and NUS-365C, SN-1392 Worksheet No(s) .: 6-50 and 6-51 QDR No.: 5437- 56-01 Location: RC-3A DISCREPANCY .

Licensee qualified the subject cables but did not furnish the manufacturer's certifidation regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-bility of the test reports to the subject cables.

RESPONSE

Attached copy of Okonite letfer, dated Oct. 15; 1980 indicates that cables supplied under P.O. No. SN-1380 (Spec. NUS-365B) and SN-1392 (Spec. NUS-365C) were CB-XLPE (carbon filled cross-linked polyethylene) insulated cable and the qualification is described by IEEE-paper dated May, 1969. .

Per IEEE Paper dated May, 1969 "Insulation and Jackets for Control and Power Cables. in Thermal Reactor Nuclear Generating Stations" the*XLPE insulated are designated in radiation class 3 (8.8xlo8 Rads) and recommended for nuclear use for safety related equipment.

This equipment shpuld be classified in Category Ia, "Equipment Qualified" *

~THE Posa c,;,ce a~: 3:.0 .... .

~OKONITE COMPANY

* ---*-y--*-*---- -------- - ',*-** . --------- ------.

i=,amsey. New .Jersey 07446 201 -S25-C30C1_Ca::lle. Oi<on1t:e October 15, 1980 Mr. John Bonner Stone & Webster Engineering Corporation Post Office Box 2.32.5 **

Boston, Massachusetts 02107

Dear Mr. Bonner:

J. 0. No. 12.846. 44 Surry Power Station - VEPCO M_r. P. Reilly 1 s letter of September 24, 1980 has been referred to me.

Our records indicate that the cables of your letter were as follows:

No. VEPCO P.O.# Okonite Factorv 0::-der #

.1 SN-1380

03-0186 <=--

.. 03-0469 e::- £-f=,ec ,=tt NUS-3.£S"(_

2. SN-1392.

SN-1417 01-3662. ~ sp<e-tt t,/US-?'SJ) 3 4 SN-375 Ol-3336/07-0033&:- spec..-~ NUS-:.74-5 SN-1446 01-4136

1 3 x l/C XLPE/Okoprene

Z - 3/C - 250 kcrr,..il, Al - X-Olene - Aluminum Armor

3 3/C - 4/0 Okonite EP/Okoprene - Steel Arr:ior 3 x l/C, 1/0. Okonite EP/Okoprene - Triplex

4 3 x 1/C, 3/0 Okonite EP/Okoprene - Triple..s.c 3 x l/C, #4 Okonite EP/Okoprene - Triplex:

5 2/C, #12 Okonite EP/Okoprene - Okoprene Overall Jacket 7 /C, #12 Okonite EP/Okoprene - Okoprene Overall Jacket l / C, if: 6

Okonite EP / Okopr erie

2/C, #14 Okonite EP/Okoprene - Okoprene Overall Jacket Note that although you bdicate that the cables are crosslinked polyethylene (XLPE), ou:- records show that only two of tb.e items were XLPE wit.S. the others insulated "'it!:i Okonite EP/Okoprene,

......._____ , _____ *~-**~-~.-,,--*--**--*-**-----~*-*****-~*--*-----* ... "' - -- . .. : ._ - .. -- -* --

,---_-;;:-------.---::-~--~----

; Mr. John Bonner October 15, 1980

--------* (________________________ . - -----------*--***-

We enclose a recent qualification report (NQRN-1) which covers the Okonite- insulation, and has included in the test a cherri.ical spray exposur e.

The test profile of the report c.ccommodates the profile o.: your letter with margin .

. The Okonite insulation cov~_:"-~d 1::f_ this docu.,nent is only ve~y -~lightly inodilied :from thatwnich-~as supplied-tofhe-*Surry Station.

- - - - - - - - - - - - - - - - - - - - - - - *--*-s-----------*-*-**-*** - --*- --*****

The modifications in the com:Jound are not generic in nature and, in our view,.:.._ do not effect the a-o"Cli~;bility

__,,,,_, _______ -------* .._..... *- *-* ~---

of th-e docu...--nent to vour cables.

We point out t:iat the Okopre::::ie on your cables is present for the purpose of L'rnparti.ng. flame retardancy to the cable construction, and that it is the insulation alone that must perform through the simulated design basis event. This performance is reported in the docu..-rnent.

The wall thickness of the samples tested were 30 mils which is equal or less th.an wall thick.nes ses of Oko:nite insclation supplied on the cables of the Surry Station so that the test is applicable to all the cables.

Regarding the cables v.."ith crosslin..~ed polyethylene, we enclose an IEEE paper wb.ich gives information and data. on the material. The insulation on the cables is a carbon black filled XLPE, and. in the pa.per this is referred to as CB-XLPE.

I hope the :.niorrnation provided v,rill* serve your purposes. I! :here is any-thing further we can do, please call me.

Very truly*you:rs, THE OKO~'"ITE COMPANY

,.,., -* _... --?

I ~ ' 7 1 .1'1,

.* *' ,/"

---.-/ Le::~ L ~ 6' J,*S. Lasky, Vice\.President JSL/row i'{.esearch and Engineering Enclosures t

- -...-. -* .. -*_*__ ...... **--** .--*****"**-*---r*--** '- -- - - * **-* - * - - - - * * - - - - - * * * ***.' *.*.-;.. * -**---- -- ** *

30 DAY RESPONSE TO SER&* TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

41 b IIa 600 VOLT OKONITE EPR INSULATED CABLE Manufacturer, Model: The Okonite Company Tag No(s).: Spec. No. NUS-36~D, SN-1417 Worksheet No(s) .: 6-52 QDR No.: 5437.;. 62....,Ql, Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked . I or irradiationally cross-linked) used and 2) applica-*

bility of the test reports to the subject cables.

RESPONSE

Attached copy of Okonite letter, dated Oct. 15, 1980 (also included in QDR-5437-62-01) and worksheet no. 6-52 of 90-day review, Rev. 4 indicate that the cable supplied under P.O. #SN-1417 (spec. no. NUS-365D) is EPR insulated and qualification of this cable is addressed in their report no. NQ~N-1. .

Qualification of this cable, addressed in QDR-5~37-60-01, is based on the same Okonite Report #NQRN-1.

This equipment should be classified in Category Ia, "Equipment Qualified"._. * *

__ ,.. *-***-------- THE._ ... ******---*---

.* ~ CJKONITE

(

COMPANY

~-...:.....-_-- - r * * - - *-.. - -- ------ - - - - ------- - . -* *---* - - -- - *-. ---* *- -**--- *..::_::_:___*---* - *:._*__ __:_**_*****..:....:_

_ _:_*-:_ _ _ _ _ _ _ :_.:..::..~.--~:.*-**-***-----* -*** ---********* ---- *-- *---------*

Octobe= 15, 1980 Mr.* John Bonner Stone &: Webste:r Enginee:ri:cg Co:r?ora.tion Post Office Box 2.32.5 3oston, Ma.ssac:iusetts 02107

Dear Mr. 3onner:

J. 0. No. 12846. 44 Surrv Power Station - VE.?CO Mr. P. Reilly's letter of September 2.4, 1980 has bee!l reier:::-ed to me.

Our ::-eco:-ds indicate that the cables oi youz lette= we:-e as .follows:

No. V:SPCO P.O;# Okodte .?actorv 0:-tle:- #

S ~c ~ {\JUS-?,t.~/1;

.l SN-1380 03-0186 -<:--

SN-1392. 03-0469 s.-pec -:# NU~ - 3.~.)(

2.

3 SN-1417 01-3662.

4 SN-375 01-3336 / 07-0033 &:- srec.* ~ NUS - '3. 7 4-SN-1446 01-4136

1 3 x 1/C XL?E/Okopre::ie

2 3/C - 250 kcrr,..il, Al - X-Ole:ie - Alu..*~+/-:11.~....~ Ar::.or 3/C - 4/0 Okonite E?/Okoprene - Steel Ar::ior 3 x 1/C, 1/0 Okonite EP/Okoprene - T:-iplex 3 x 1/C, 3/0 Okonite EP/Okoprene - Triple."'C 3 x liC, #4 Okonite EP/Okoprene - T::-:ip!ex

5 2/C, #12 Okonite EP/Okopre::1e - Oko-pre:ie O,rerall Jacket 7 /C, #12 Okonite EP/Okopre:ne - Okopre:ie Ove:?:all Jacket 1/C, # 6 Okonite E?/Okop:rene 2/C, #1..;, Okocite EP/Okoprene - Okoprene 0-...-e:-all Jacket Note that although ,*ou bdicate ::hat the cables are c:ros sli=.ked polyethylene (XLPE), au:- records show that only two of t.1,.e i::e~s we:-e XL?E *,,::.t.1i the ot:.ers :.:1sula::ed w-it!:l Okcnite EP/Okoprene .

. . .. _..,.__ ..' . *-*--*-*------*.-___ : .....: ___ ----*--*...!.:...:___..::::.:~.-';..:._:_________ : __________ .:_ _________ __;;__~---- -*- _ _._':'~=:-=-~---~-..

Octobe:- 15, 1980

(. __ - -- --* -**-*----*----***--**---*-****--*-------*----*-**--* --------------- -**-- -- --- -- ---------- -* --* ----------- ------ ..

We enclose a recent q~li5.cation report (NQRN-1) w::ich covers t=ie Okonite* ::.nsula~on, a...'1.d has included in t.~e test a cherr-...ical spray ex?')S't.r e._

The test profile of the ::."eport c:.CCorn.r:lod,ates the ?=o=ile o: your letter with

. ma::."gin.

The Oko=:.te insula-::ion covered b*r this COCU..."'nent is onlv ve::."V sli£htly ino-ci--i.;e-d :b:o~ that7;*nich-~-~~ SU?plied- iothe Surry Station. '-----

The :r:1odi£ications i..."'l the cor:1c>ou::id are not gener:.c in nature and, in our view. do not effect ~e a-:::rclicability oi the docu...--nent to-;-our ~ables.

---'-------------------------- _______ ,._ ---~ -- *-* --- ----- -"-. ---- ----

We ?Dint out t:iat the Okopre::ie on your cables is present for the purpose

-oi L-npa:=-':i....'1.g flame =etardancy to the cable const:=-".lcticn, and that it is the L,sclation alone that must perform through the simulated design basis event. This performance is :::-eported i:l the docu.."':J.ent.

The wall thickness. o:f the samples tested we:-e 30 :::uls which is equal or -

less than wall thicknesses oi Okocite ~sclation SU??lied. on the c_a.bles o:f

the Sur::-y Station so that the test is applicable to all the cables.

Regarding the ca:>les v..-ith crossl.i;i.1<ed pol~*ethy!ene, we enclose a::i IEEE

' paper wb.ich gives i.r.iorr:la.tion. and data. on the material. The insulation on the cables is a carbo:i black ;.;i1 ed XL?.E, 'and in the pa.?er this is referred to ~s CB-XL?E.

i: hope t!-le :.nio::."ma.tion p:-ovic.ed ~ill se=ve rour purposes. !! :here :!.s a::.y-thing furtb.er we can do, please call :c-ie.

Very truly yours, THE OKONITE COMPANY

J,

S. Lasky, Vice, P:::-esident JSL/row ~

!!tesea:rch and Eng:..::lee:-::..."lg Enclosures

~-:..-

---*~-.---.,.

30 *DAY RESPONSE TO .SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 41C TER Category: IIa

Description:

600 VOLT OKONITE XLPE INSULATED CABLE Manufacturer, Model: The Okonite Company.

Tag No(s).: Spec. No. NUS-374, SN-375 Worksheet No (s) . : 6-5 3 QDR No.: 5437- 56-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-bility*of the test reports to the subject cables .

RESPONSE

Attached copy of Okonite letter, dated Oct. 15, 1980 indicates*that the cables supplied under P.O. #SN-375 (spec. no. NUS-374) were EPR insulated not cross-linked polyethylene and the applicable qualification report is Okonite #NQRN-1.

Worksheet no. 6-53 will be revised and included in QDR-5437-62-01 (FRC TER No. 44) which addresses the qualification of Okonite EPR cables based on the Okonite Report #NQRN-1.

This equipment should be classified in Category Ia, "Equipment Qualified" .

-- - THE*--- - --- *- . - ------ *-- ~~~-

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.. ....:.=--*.*..:.:** - - - L . ----* **- . - - - - - - . - *- - - - - - - . - . * - - . . * * . . * . . - ---* - **.*..*. _----*.*--* **. - - - __::_:_-_:__ : * .:..::.. ______

.. _ . _: ... ::.::_::..:_ _ _:_ __* _ : _ _ ~ .:.:....*__ _:_:.::_:_: *.. - - -*. - *-- - -** * -*

Octobe= 15, 19SO M:::-. john Bonner Stone & Webster Engi:J.ee=ing Cor?ora:tion Post Office Box 2,325

Soston, Massachusetts 02107

Dear W-=. Bonner:

J. 0. No. 12846. ?4 Surn~ Power Station - VEPCO M:::-. ?. Reilly 1 s letter of September 24, 1980 J:-...as been reier=ed to me.

01:.= :::-eco=cis :.ndicate that the cables of yo.:.::- let;e:::- we=e as .follows:

No. V:S?CO P.O.# Okonite ?actorv 0:::-der ~

.l SN-1380 03-0186 -<=----

we-

2 SN-1392. 03-0469 3 SN-1417 01-3662. ~ 5~~ fJUS~36S"_J) 4 SN-375 01-3336 / 07-0033 k - s~c:..- ~ NUS - !> 7 4-

, SN-1446 01-4136

1 3 x 1/C XL?:S/Okopre:ie.

3/C - 250 kcrr..il, Al - X-Ole:ie - Alu.."'":lbum A:::-:-:ior

3 3/C - 4/0 Okonite EP/Okoprene*- Steel Ar~or 3 x 1/C, 1/0 Okonite EP/Okoprene - Triplex

4 3 x 1/C, 3/0 Okonite EP/Okoprene - Triple.."C 3 x 1/C, #4 Okonite EP/Okoprene - Triplex

5 2/C, #12. ORonite EP/Okoprene -*Okoprene Overall Jacket 7 /C, #12 Okonite E?/Okoorene - Oko-:,rene Overall Jack.et 1/C, # 6 Okonite E?/Okopren~ * *

2/C, #:14 Okonite EP/Okoprene - . Okopre:!le Overall Jacket Note that alt::.ough you bc:.icate that the cables are c:::-os slbked polyethylene (XL?.E), ou:- records show that only two of the ite:::-.:1s we::-e XL?:S w:.fa the ot!-i~rs :."lsulated w-ith. Okon:.te EP/Okoprene,

Oc~ober 15, 1980 f **- -

We enclose a recent qualification repo::-~ (:NQRN-1) w:-..ich covers tb.e Okon:.te- :nsulation, a..."'ld ha.s L"1.cluded in t.1-ie test a che:::nical spray ~'?Os*'tr e._

The test profile of the =eport ce.CCOI!"-"':'lodates the ?::-o.::.le o: ;.rou:r lette::- with

na~gin.

The Oko=.it.e insula-=.on covered or this docl.!.-'!le::it is only very sliQ:htly

notf:"'i"~ed~=oc-- thatvdtlch-\~-~~ s,{?pliecf to:-he Su:-!'y Station. -----

The mod.:.ficat.ions L"'l the co::n;:iou:id a:::-e not generic in nature and, in o-u.r view, ..;._ ____, _______________

do not effect the a*;:rcli~;_-bility ...... -*-* ----~------

of t.h-;d;c:;__,.~~;t *---

to-vo-u.r cables-.--~

W'e point out t:iat the Okoprene on your cables is present for the pu.r?ose of i."n.pa:."ti..."'lg flame :-eta.rdancy to the cable const:-".J.ction, and that it is the insulation alone that must perform through the simulated design basis event. This performance is :-eported in the docu.":lent.

The wall fr.ickness of ~he sa::nples tested we:-e 30 r.-,.ils which is equal or -

less t.b.an wall thicknesses of Okocite i:lsclation SU??lied on the cables of the Sur:-y Sta.:::ion so that the test" is applicable to all the cables.

Regarding the cables w:.th crosslb..'l.ced ?olyethylene, we enclose an IEEE

( paper wbich gives i.."lior::ia.tion and data. on the mate:::-::.al. The insulation on the cables is a carbon black filled XL?E, and in the paper this is referred to ~s CB-XLPE.

I hope :he inio:r:r:.a:ion ?=o*dded v.ill se=ve ,.*ou: pu.:-pcses. !! :.'.ere :.s a=y-thing furtb.er we can do, please call me .

.Very truly you:-s, TEE OKO~-"ITE COMPANY

J,

S. Lasky, Vice, P::.-eside:nt JSL/row ~esearch I-, and Eng:.nee:-i.."lg Enclosures

- - - - - * * --*--~-- -- . ' . - - ,*- **~~-'-------*- ---***--*- ......__. ... __________ ...__ - *-**-*-*-*--,.---

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 42 TER Category: IIa

Description:

600 VOLT, .COLLYER CROSS LINKED POLYETHYLENE INSULATED CABLE Manufacturer, Model: Collyer Insulated Wire Co.

Tag No(s).: Spec. No. NUS-365E, SN-457 Worksheet No(s).: 6-54 QDR No.: 5437..:.. 44-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross linked) used and 2) applicability of the test reports to the subject cables.

RESPONSE

Per Collyer correspondence letter dated Sept. 10, 1971 (included in the referenced QDR page 2a, in the end) the

~urchase Order No. SN-457 (Spec. NUS-365E) was cancelled in its entirety.

Also the review of the plant records reveals that the Collyer, XLPE cables are not used for any safety-related equipment which is located in the harsh environment and listed on the Master List.

This equipment should be classified in Category IIIa "Equipment Exempt from Qualification 11

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 46 TER Category: IIa

Description:

HIGH TEMPERATURE CABLE FOR SUPPLY POWER TO SAFETY SYS.

Manufacturer, Model: CONTINENTAL WIRE & CABLE - SILICONE RUBBER Tag No(s).: NUS-326 Worksheet No (s).: 6-60 QDR No.: 5437- 47..,,01 Location: RC-3A DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided .

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

47 IIa SKV COLLYER CROSS LINKED POLYETHYLENE INSULATED .CABLES Manufacturer, Model: Collyer Insulated Wire Co.

Tag No(s).: spec. No. NUS-36~; SN-1250 Worksheet No(s).: 6~60a QDR No.: 5437..;. 46-01 Location: AB-27 DISCREPANCY Licensee qualified the *subject cables but did. not furnish the manufactu~er's certific~tion regardin~:

1) cable construdtion methods (cihemically cross linked or irradiationally cross linked) used and 2) applicability.

of the test reports to the subject cables.

RESPONSE

The review of the plant records reveals that the Collyer cables are not used for any_safety-:related equipment which is located in harsh environment.*

This equipment should be classified in Category IIIa "Eqll:if>_ment Exempt from Qualification",

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

51 Ila LOW HEAD SAFETY INJECTION PUMP MOTOR Manufacturer, Model: Westinghouse ABDP Tag No(s).: 1-SI-P-lA,lB Worksheet No(s).: 6-198, 6-199 QDR No.: 5437-43-01 Location: SFGD-1 DISCREPANCY Licensee qualified the equipment, but did not furnish sufficient documentation to support (1) the similarity between test specimen and the equipment, (2) radiation resistance of the lube oil and bearing grease and (3) aging surveillance and replacement schedule.

RESPONSE

Westinghouse correspondence letters, included in the referenced QDR, were re-reviewed and we conclude that the similarity. betwe.en j:he test specimen and :the equip~ent _i~

established.

This equ.1.prnenE-shouia. be -ciassified in Category Ile.

"Equipment Satisfies all Requirements Except Qualified Life or Replacement Schedule Justified".

The attached discussion and clarification of the low head safety injection motors should preclude FRC concerns regarding the similarity between the .test specimen and the equipment, radiation capabilities and aging qualifi-cation.

ATTACHMENT TOTER ITEM #51 (VEPCO SURRY . UNIT # l)

LOW HEAD SAFETY INJECTION *plJMP .MOTORS * (Tag Nos. 1-SI-P-lA, lB)

Tag Nos: 1-SI-P-lA,lB. & 2-SI-P-1A,1B QDR Nos: 5437-43-bl for Unit #1 and 5437-105-01 for Unit #2

1. Similarity Between: Test *Motors an:d Plant *Equipment:

i) Westinghouse letter dated.4/9/81 in reference to letter NCW-1317/NAW-3615 (page 2d of QDR) indicates.

that:

a) The subject low head safety injection.pump motors were rewound in accordance with their insulation specification, LIT~spec-711306 (Page 26 of QDR-5437-105~01*). Since this specification was in use for several years before and after these motors were rewound, the probability for the use of other materials or procedures is minimal.

b) The thermal endurance test of this thermalastic epoxy system was in accordance with IEEE Standard 275-1966 which describes the complete procedure (like cycle of oven aging, temperatures, aging time, mechanical, vibration, humidification, etc.).

c) Test results show that this insulation system performed as well as the latest Class B therma-lastic epoxy system.

ii) Westinghouse letter no. NAW-3601 dated Aug. 19, 1980 (page 2c of QDR) indicates successful qualification testing of motors with thermalastic epoxy insulation systems, documented in WCAP-8754, including all organic insulating materials. Therefore wedges and cabling need not be addressed separately. The results of actual tests are available in Westinghouse fileso iii) Review of the insulation specification LIT-711306 (page 2c*of QDR-5437-105-01) indicates that tha insulation system consists of sheets of Mica embedded in a solvent-less epoxy resin which is the same as that described in Westinghouse WCAP-8754, Para. 4.2.

iv) Westinghouse discussed thermalastic epoxy insulation in their application data 3170 (copy attached).

Review of the insulation specification LIT-711306 used for the subject motors indicates that the insu-lation materials, listed in the questioned specifica-tion are the same as discussed in their application date 3170.

Page 2c of Unit #1 QDR-5437-43-01 does not contain specification LIT-711306.

Considering the above i t is concluded that the insulation system of .the subject motor is the same thermalastic epoxy.

insulation as that of .the. test. specimen of Westinghouse WCAP-8754. This* conclusion is further. *supported by_ *. the fact that all Westinghouse motors with thermalastic epoxy insulation system were wourid in .. accordance with . *r only one insulation specific~tion no. LIT-711306. **

2. Lubrication *Radiaticm Resistance and Aging Review of the plant maintenance records. confirms that for low head safety injection motor lubrication chevron SRI #2 has been used. The radiation resistance capabilities of Chevron SRI #2 is 1. 8x108 Rads per Westinghouse letter NAW-3620 dated Nov. 18, 1980. (included in the Ref. QDR).

Because this qualification ~alue of l.8xl0 8 Rads envelops the plant required dose of 8.ox106 Rads, the subject motor lubrication are considered qualified for the radia-tion.

3. Although an aging analysis was performed (see the attached analysis) a detailed maintenance, aging surveillance and replacement schedule will be*submitted.

- QUALIFIED LIFE OF WESTINGHOUSE LOW HEAD SAFETY INJECTION MOTORS

1) Westinghouse letter #VPU(RRK)-48 dated Jan. 9, 1981 (page 2d of the QDR) indicates that the actual maximum winding temperature rise from test is 70°C at 1.15 SF load for the Surry pump motors * . This gives a maximum continuous operat-ing temperature of .110°c* (70+40) at the plant normal ambient temperature of 104°F (40°C).

2) Because the plant environmental conditions for the motors do not change duririg the_LOCA/HELB the same operating temperature (110 °C) is considered during normal as .well as during LOCA conditions.

3). These low head safety injection pump motors are required to operate during LOCA period of 120 days and periodic testing of about 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months a month. The total operating time during 40 yrs life *of the motor is calculated below .

i) ii)

Periodic* testing during 40 .years -

LOCA period =

=

(2 hrs/month)x12x40

960 .hrs 120 .days= 2880 hrs Total cOntinuous operation =(960+2880)~* 3840 hrs For conservatism it is assumed.in* the following analysis that the supject motor will run continuously for one year

(8760 hrs) instead of 3840 hrs.

4) From Fig. 4-1 of WCAP-8754 (thermal aging curv~ for therma-lastic epoxy system, per IEEE Std. -275...:.1_966) the. qualified life at 120 °C = 200 ,.000 hours0 days 0 hours 0 weeks 0 months and from. Fig**. 9-1. (in which

. Westinghouse has drawn a most conservative projected qualified insulation life of motor) the qualified life at 120°C = 96,000 hours0 days 0 hours 0 weeks 0 months .

5) Activation Energy:

The activation energy is calculated by Arrhenius extrapola-tion as follows:

From Fig. 9-1 .of WCAP-8754 the qualified*. life at 120 °.c =

- - - 90,000 hours0 days 0 hours 0 weeks 0 months and at 130°C = 45,000 *hours.

Arrhenius equation

~ (T2-Tl)

- K Tl T2 where .

Tx = life at a higher temperature T 2

= 45;000 hours0 days 0 hours 0 weeks 0 months .

.TL = life at a lower temperature = 90;000 *hours.

~ = activation energy = to be calculated

-5.

K = Boltzman Constant = 8.617xl0.

T2 = Higher temperature = 130+273 = 403°K Tl = Lower temperature = 120+273 = 393°K

/

Substituting in the above equation:

. ~ :x (403-393}

44,000 - . 8.617x403x393xlo~5.

96,000 e Solving:

-~ = 1.08==1.0

6) CALCULATION OF QUALIFIED LIFE:*

From Fig. 9-1 of WCAP the qualified life *at 120°C is 96,000

hours. Out of this life the motor is* required to operate for 8,600 hours0.00694 days 0.167 hours 9.920635e-4 weeks 2.283e-4 months only. (see sec.* 3 above) *at 110°C:. Assuming it operates at 120°C, (for further conservatism) the follow-ing analysis shows that the remaining continuous operating life of 87400 hours is more *than the* 39 years of how operating life at plant ambient of 40 °c* ( 104 °F)

Applying Arrhenius equation.

l (T2""'.Tl)

- K T xT 1 2 TX = TLe where:

T X = 87400 hours TL = to be calculated Tl = (40 + 273) = 313°K T2 = (120*+ 273) = 292°K

-5 K = 8.617xl0

~ = 1.0 (see sec. 5 above)

Substituting:

l.Ox(393-313)

- 8.617xlo-Sx393x313 87400 = TL e Solving:

TL= 659642 hours= 75 years

Conclusion:

From the above analysis it is concluded that the subject motors are .qualified for a life of at least 40 year.s under tpe specified service conditions of the plant.

' ~--------- -- ---- --*------** ,,. ____ ;* _-* ___ ----~--------*----

,. __ Apphc:ation_.Oea,312(L_P.11pe .l. _ *_.:,_ .

'*-~. *-*::Westinghouse Thermalastic Epoxy Insulation For Lllrge Ac: Motors F/A end other Motors with Form-Wound Coils - Squinel-C11ge. PAM, Wound Rotor, Synchronous Thermalast1c: Epoxy insulation is the stand- Continuous research end testing of all good resistance to moisture and to prac*

ard on all large ac: machines. 7.CX>O volts i:nown insulating materials end systems tic:ally all types of chemical contaminari1s.

and below. built l!lt East Pinsburgh using have enabled Westinghouse to keep Ther- They have been proven in laboratory tesis form-wound coils. up through the B5" dia- malast1c: insulation bener than any other described later and by field service. .

meter frame size. This will mc:lude prac:i1- insulation.

cally all type F/A machines. It is also now Processing Thermalast1c Epoxv insula\.lon available on some machines ra1ed 1 3.B kV. One basic feature of Thermalastic: Epoxy includes vacuum-pressure 1mpregna:,on o!

Thermalastic Epoxy 1s elso available on form- insulation is the use of mica in the ground the complete wound stator. stator coils as wall. No other material can equal mica from WP.II es coil connections. Tnis makes 1:

wo1Jnd coils for retings manuiac:tured at trie B ufialo Plant. the standpoint of electric: strength. voltage possible to give all parts of tne win:i!n;;is endurance end reliability. the full effect of t11e high resin 1111 that 1s

'"Thermalast1c:" hes made an enviable name achieved with the vacuum-pressure tech-for Itself as an insulation. It was the first Solventless epoxy resins are impregnated nique. The coils ere not deformed or real advancement in msulat1on in over 20 into the mica which has been preplec:ed stressed aner impregnation.

years when it w11s first inuoduced in 1949 on I form-wound coil. Then with both on large turbine generators. mica end resin in pcsition. chemical re- The processes described are those of the Westin house be 11n to use it on lar e ec:tion is init111ted which transforms the Large Rotating Apparatus O,v1s1on m East rno1ors m 1 ;,2,--lt is imponant to remember- -resin-into *11 solid which toc:lcs and binds * * ----* P1nsburgh. *Pnmar,ly due-to d1tterences in-*

that Thermelutic insul1t1on is I system. the mica into a composite mess. The result- the size of motors manufactured at tne not a material.. As such. rt is not static: end ing end product then takes edv11ntage of Buffalo Large Ac: and De: Motor D1v1s1on.

many improvements m ns components and the excellent properties* of both the m1c:a specific: processes vary an minor detail. Tne processing have been made since rt was and the resin. The outstanding c:harec:ter- essential c:harac:terisuc:s of tne insula116n first used. _____ ____

_________istic:s of the ep_oxies i_s__ tlleir_ exnemely sv_ster11__11re_!_tle_Saf!'~------ ____ . . **-** _____ _

&.ptembor, U71 Su~raetles 1echn,cal 0111 3170. elated June. 1968 E. C/1738. 1740/0B

Westinghouse f'S**

Stator Coil, Tne eno turns of the stator coils are firmly 1 ne 1nsulat1on 1mmed1ately ad1acent to the braceo to withstand full-voltage stans w11h copper conductors 1s generally that which a se*,es of insulated support rings as well insulates tne various turns 1n the co,I from a~ braces between coil end turns. which 1n e.acn other. This 1s a very 1mpcrtant part of ette:t form an archbound structure at these the insulation system. one wh,ch freouently points The material used as a brace be-

,s not given the attention 1t deserves. Since twt',;:i coil end turns 1s a non-woven poly-the maJority of ac motors are started este* felt which has both resiliency and across-the-line. tnere 1s a possibility that abs::iroency.

steep fronted. impulse type waves can be 1moose:l on the w;no1ng. Tnese waves Alter installation of all coils and comole-L'"~*-- :. * .:;. c!c:::,;: ;tress on tne turn insu- t1c:>l"l of weog1ng and bracing. the connec-1at,on. espe:1a!IV tne turns of tne stator t1cins are made and insulated. and the stator co11s near the line term1na!s. 1s reao,* for 1mpregnat,on.

In the light of tnese facts and the general Vacuum-Pressure Impregnation industry trend to higher operating voltages. Tne preneate:: s:ator is lowered into the mica. which provides a positive electric vacuu,n pressure tank. and the air evacu-barrier of very high strength. is used as ate:: to a very low absolute pressure. Tne turn rnsula!lon for all coils rated 4 kV and epoxy resin 1s then introduce:l. while ma1n-above for the larger size motors. On smaller tain,r:;i tne vacuum. to a level that com-SIZe motors. this add1t1onal strength. where pleteiv submerges all parts of*the winding.

required. is obtained by the use of enamel Tne ..-a.:uurn 1s then released and replaced plus oouble dacron-glass covering. w::!" o::>s1t111e pressure of several atmospheres ove* tne l1qu1d resin. Following these steps

1=..!>.

,;;,..;,:~~

tr.e stator 1s removed. as shown in Figure 2.

~--

Slot ln1ula1,on ( M,ca Tapered M,ca Wrapper Wrapper ADPllfO in for Smooth Jo,n1 with Snee! Form)* End Tape ln1ulo!ed I Conductori E1tro Tap,n9 for I

End Turn Lead Fie1nforcements lnsulot ,on Outer Binder F,p. 1 Ty;ucal 1111110, coil 1how1ng elemenu of F,p 2. Aher 1mpregn111on. 1he 1tntor II removed from 1n1ul11ion. lho 1enl end placed in an oven for curing.

The m1caceous ground insulating mater,als Trie riext step 1n the process takes place in ere apol1ed as shown in detail in Fig. 1. All an oven. wnere the resin 1s cured.

materials used are designed to be both In a::01:1on to the impregnation of the compatible with: and selected components win.:lin;i. the bracing system has been bui_lt of. tne complete insulation system ..

"1n place" by the absorption of epoxy resin ano subsequent cure in the polyester felt.

Winding Stator Tn1s 91ves very high strengt~ to the bracing __ **-****-----*-*-.

--*------**-*-----*------*-***----*-**--*--*-*--*-At-me start of the winding operation the

scherr,e.

stator core consists of the assembled

** punchings and restraining end plates. thus During the manufacture of the coils and

. prov1d1ng a maximum of accessibility dur- w1nd,ng. ouahty control procedures are .

mg coil assembly of Jar1;1er size motors. The use.:l continuously to monitor the phys,cal )

fact that the coils are uhimpregnated at dimensions and electrical_ integrity of_the tn1s stage* provides eese

of installation. insu1a*11on.

-*- - * *"' Ot,C. ""'*

-.***---=*-.. . -----* --**--* - - .. -- -*---~------~-*-**-:- *.-**--*-***~-------~-..-.-~.--.... - .. --..*-- .... ,. .. *._ *-*---.. -- ~--~;--:.=:::==:~- ...... _. ~*.::*-:.*:*-.

Thermalastic Epoxy Insulation

,:~.

For Large Ac Motors F/A and other Motors with Form.

Wound Coils - Squirrel-Cage. PAM, Wound Rotor, Synchronous Evaluation and Test Progrem Voltage Endurance lhermalastic Epoxy insulation was adopted Smee 1nsulat1on in large machines is ex-

..)

as standard for large ac motors only.etter pected to perform for a long period of time.

c.:,mplet1on of an extensive evaluation and a voltage endurance test has been devised.

test program. A desc11ption of some of the In this test. sample coils aie prepared and more impor1ant tests follows. connected as described for tne shon-t1me electric tests.

Electric Strength Smee the fundamental function of 1nsula- Electric strength is evaluated m deoth by a t1on is to withstand electric stress. tne first series of breakdown tests for each insula-

,eries of tests on any insulation svstem 1s tion system. A group of sample coils for to determine its short-time electric strength. eacn svstem 1s tested at various voltage Complete insulated coils are use::l for this levels for fixed time intervals which may be test. one minute. one hour. one week or more.

By planing average "hold"" values for the It 1s desirable that for any pani::::ular voltage d1fferen: time periods. a voltage enourance class the av~rage breakdown voltage be as curve is created. Such a curve 1s shown ,n high as possible. However. it 1s essential F,gure 3.

that tne values be examined and analyzed 1>tat1st1cally. It 1s the Westinghouse concept Much of the data thus obtained tends to tnat. using the principles of s1a:,st1cal plot ,n a straight hne. One way of looking

analysis. the coils have a b!eakdown level al°such data 1s to estabhsn an **operating well above the test level for indz\*idual coils. lever* and examine where tne extrapolated voltage endurance curve will intersect this Thermalastic Epoxy insula?,o:i has both a **operating lever*. The Thermalast1c insula-higher average short-time electric stren;th tion curve intersects the ope:at,ng stress and is more reproouc1ble frcm coil-to-co1I level at a time in excess of 1 O:) years. Tnese

~ -.r:f.~~-::

than .other insulation systems.

are results of laboratory tes:s on only orie of the cegradtnl) mechanisms that atte:t

'.~..._ insulatton and. therefore. a*e not complete md1cat1ons of actual operating life. How-ever. systems that fail to g,ve indications of satisfactory life in this very fundamental test are not considered favorably.

~~or*:~ t'1~:

'd

~

i..-

& ~

HP"',. n1r*f"~f!r"f"f'fr~['l""l

~

if: ~-t<11* t'* ~.. Jt1*r Secor>d!.

~ &...L~.1Li.. w .L *. llt.Llli L-r.1 L ulL~- t I f J. * [ 0 c * **

~

t ~. ii*, i [(

L

~

L * *

~

rrr*,1rrrrr rr.J ! t, ,***riOO

~

~

rrt t-r-!fl[rff[f"Ff rr---rrroo

~oo

..d

.. ! = .

l qr-~*f!'r

~I r dt r~ pif >I! r . , f t ,

- fl,- ... tt L, I:,. U . I:-.

t.

ti . L,,

I . r , t- , ti LH l. L l H'600

~ r;i~ ~ !f!t"'f Plf*Tf'l[r-r.11r 400

[i-~i!f

. . . . . l. ., *Itr . , r = * . . . . , .f , L i

! * * *t * " * ** I

~ ~ : , Ll ,

r ff!r- .**;~1 t

1

?t t**,:.. ,,_,oo ~*-

I t1lL l ,1t

1. *LL, l.i...~.d~ *. Hu d,L ~H :** l*tl ;

-c:

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' . I r!lr

1t*.,r:,

1: 1 r ; .* , i : l , ,

! r * ::1r

. ,. ,. *t* .,,. :~ r*1r

1 I IfI rt r*1f* lr* rt*'.~oc

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~ *,=!lrt;~r *'ll** '1 ~.,

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I * ' * * '*, * ' .

I LILt..if.L:,. r

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> : ;. . * , * ) . i II * **

r .. I * ! I o

.t.~dL._Lil., 1 Ltik.l-tdlP.:, , >

lUiltllll[ U:llUll[UII[ t;' 1tlUJ~,,,

200

~EU!l((U [U!l((l!lrnUltUIU .~r.n:,

io-2 I0-1 1 IO r:,? ~ 1a" ~ !Ci;

.. ----*- *--*-----.Hou*s_ ---**-***-**-*--*---*-*--**-***--**

~ . fl;. 3. V ~ Enclur1n~.

--~~ ... _:..._ --~.,.----* --:--... ..,. ___._ *-. *---~*-,..........._.* ~- .... "' .. . .---

Applica't1on Data 3170 Page 4 Westinghouse

)

Moisture Resistance Tne first screer.:r.g test for moisture resist-ance ,s a test en :nd1vidual coils susoended in salt water.'These are standard cods sub-me(ged exceot for trie leads and front loops and cont1r.uous1v subiected to normal

'llol:3ge to gr'"unj_ This 1s the value of the ma'<1mum lir.:-to-groun.:l operatmg voltage.

Total hours to failure are then measured for each of the svstems under 1nvest1gat1on.

.**;

: ..:*: .: . :' t" .. ;:J

?§ .,..~ermolos1:c .

A complete 41 60 volt Thermal as tic Epoxy

.'= :C:,O soo stator was submerged 1n a tank of water mys ,o Fc,1u,e conta1nrng 5% salt by weight (aporoximate verage hfe of ,nsulauon systems. immerwd sea water concentration) for a period of 14 age applied cont,nuously. davs. The 1nsulatron resistance was check-ed throughout th:s oenod. Figure 6 1s the E

-~..ire 4 Sl"OV\.S tre '.esi.;lts obtained bv this rr.<?.tnco. ~s :a~ o: s:el"I. 'the eooxv resin

-~::regna!'t ,rr.oar.s ou:s:al"!:i1l"'g moisture plot of 1nsulat1on resistance obtained tnroughout tne 14 cay per,od.

r.

0 0

E

)

res:s,ance to t:"!e 1hermalast1c concept. Tr.ere are variations 1n the level. orcbably gC due to changes 1n the cor.duct1v1tv of the irisulat1on surfaces at ti":e w:nd1ng -terminals.

C:

but all readings are quite hgh. F:gure 7 is .2 a c:;lot of the d1electr1c at,sorct1on tests 0 taken before and after the 14 day oeriod ]

.s whale 1n the water.

At the conclusion of this cenod the stator.

was removed from the tank and without Fi9. 8. Testt of wound '160-volt st,ior undar rinsing or dr,ing was suoiected to a 4800 cond11ion1 ol 100"4 hum1d1ty.

volt ac rms high potential test. The w1nd1ng withheld this test with no diHrcultv. This 361873 indicates the winding could have been cleaned and dried and returned to service.

F,g. 5 Complete mo1or w,,,d,ng ,mm..sed ,n watar for test of mo,sture resistance.

In still another test on a complete winding.

T~srs on ,r.::,v1d:..al earls w1tho1.1t connec- the effect of continuous exoosure to 100%

~1cris. howeve*. are not tne entire storv. The relatrve hum1d1tv at 5o*c was invest,gated.

m-:i-sture res:stance cf comolete wino,r.gs In some resoects tn1s 1s a more se_vere test 1as also been ,r.,est,gated. In F:gure 5 a tha_n actual submersion since water vaoor w,r.::1ng :riclu:J,r.g all connecuons 1s shown has a hrgh degree of penetrauon through comole:ely s1.ocrr.erged rn a tanlc of salt a films. Figure shows the results. After wa:er. Tt'>e winding leads are connected to more than 3000 hours0.0347 days 0.833 hours 0.00496 weeks 0.00114 months of this type of ex-a "'egonm br:oge so that insulation resis- posure. tne Thermalast1c Eooxv insulated tance can be measured.' w,r.ding still had 1nsulat1on resistance measured in thousands of megohms.

}

,~~ .... ______ ___ -

...., ________ , _____ ..,. ---------------c-,~

Thermalastic Epoxy Insulation For Large Ac Motors f/A and other Motors with Form-Wound Coils - SQuirr&I-C11ga. PAM.

Wound Rotor, Synchronous Chemical Resist11nce Table A Resistance to chemical contaminants 1s Solvent &. Chemical Resist11nc11 of Tt-iermal1utic Epoxy Resin C111ting1 r another factor in manv inoustr1es. In look-ing at resistance to acids. bases ano sol-Solvent T.:r,e of lr'T"'""ters,o1' Shore D hasdness Pe1cen1(!)

We,ght Cnenge I Perce":~

Th,ckneu of Cru "ll*

J R111r.g l vents. ncth1rig has oeen found that 1s tne

_eoual of the epoxy resins. Table A snows a 50'1o Acet,c 0

I 24 nours 84 85 0

0 0

0

!' Ez~elier,t tabulation of some of the manv tests mace wherein resin samples were subiected to Acid I 48 houes

7 aeys 85 85 0

0 0

0 i!

hau1d batns of various contaminating ma- ., :l cays 86 0 0 terials. Tne resin used in Thermalast1c ,o~ 0 84 0 0 E..celle~:

Epoxy 1nsula-t1on snows outstanding :es1s- Scdsum i4 hours 66 0 0 tance to all of them.

Hycro1.1oe. 48 riours 85 0 0 7 d~ys es 0 0 Thermal Endurance 1O cays 86 0 0 Temperature 1s widely accepted as be,ng Acetone 0 85 0 0

Good one of the l1mit1ng factors in insulat:on life. 1 ~4 nours 61 + 8.6 + 9.5 To determine the ability of insulation 10 I 43 t\O",s 45 +15 3 +17.5 i 72 nours OecolT'posed stand up unoer thermal aging. testing *s ::1one 10 cays by following the basic concept of func-I tional testing _outlined in IEEE 275. Benzene 0 87 0 I 0 b=ellec*

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 88 0 0

46 hour5.324074e-4 days 0.0128 hours 7.60582e-5 weeks 1.7503e-5 months s- es 0 I

-I 0 This 1s the .. motorene" type of test:n; 7 oa*1s 88 0 I 0 wherein small. complete coils are made ,n ' 10 ::!avs ea 0 I 0 accordance w1tn actual processes em-Trice,1cro- 0 86 0 0 Gcoc ployed 1n the 1nsula11on system being eval- etnvle"'e 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 48 + 7.6 +15.5 uated. These cods are tr.en mour,teci ,n slots .:e hours Decomposed on a motorette and the leads brought out ,n 7 :avs 10 ::avs*

an appropriate fash,on as snown in F,gure 9 so tr,at electrical tes:s can be made. Tnese O,u111ea 0 83 0 0 Exce11c:r-.~

motorenes are then subiected to a cycle H1 0 24 no"rs 85 0 0 of oven ag,ng. mechan,cal v1brat1or,. j .:3 :'\CU'S 85 0 0 7 days 85 0 0 hum1d1f1ca11on ano electrical test. Follow,ng 10 davs- 65 0 0 th,s. tf"le cycle is repeated and the number of cycles to failure 1s recorded.

3~066 Fig. 10. n,..,..,1 endu11nce of in1ul1t1on 1ys1am1 for l Fi;. 9. '"Motorene" used for 1111ing thenn*I en*

duiance of in1ul111on 1ya1em1.

This is a comparative test only. There are no standard values for the test cond1t1ons or number of cycles or the hours of aging rotaung mKh1n11 tea1ad ir, motorenu in accordence with IEEE 275 (SOOO volt p,oof 1111).

aga,nst temperature on the honzont_al axis.

As can be seen. the life of all systems de-creases with increased temperature. The that a system should withstand. It is l:nown "'pre-Thermalast,c" curve 1s the data op-however. that for more than 30 years class . tained on !he c1ass B insulat,on system B insulauon has been in service and that used prior to Tr,ermalasuc. In going to the rt has performeo sa11sfactorily. The proce- Thermalast1c Epoxy system. a curve 1s ob-

*-"--dure 1s.-ther*efore. to compare new or pro- t;ned wn1cn *1s sndted over on th al

. posed systems wrth the older service-sea e v a out . his in itself indicates proven systems. Figure 10 shows the data a h1gn oroer of .. tnermal reserve" in ;Ther-obta,ned by such tests. Hours of life 1s malast1c Epoxy 1nsulat,on. This system

plotted logarithm,cally on the venical axis Qualifies for class F thermal rating.

1*

_-- Apoi,ta\ion _Data_ 3170

Page_ 6_

--- - - - - ----* -**-* _-:.. -*:--.* -- ... -~4***-** ..** -* ___,;. . . __~ .... ~-~._.:._,_____--------. -* _. . . *----------~*. -~-- ....-~- --*-- ---- . ----

Westinghouse Thermal Cycling Mechanical Strsngth Abre!lion Resi11t11ncs

...1: r.o:ors .n service are required 10 w11h- All motor insulation may be subjectea to Motors are not 1nfrecuently eJ<cected to s,:::-:: *;ar ..*ir.g degrees of tnermal cvcling. severe mechan,cal stresses duril"lg opera- operate in an environment vv:-:,ch subiects r~e .;oil:t*, of Therma1as1::: Epoxy 1nsula11on tion. To determine the ab1l,ty of tne com- the cod insulation to combarament by i~ N*t~staro thermal cycling and maintain plete Thermalast1c Eooxv winding to w,th- highly abrasive P3rt1cles. Tr.,s occurs ce-TT.: i'.*~re res:stance IS dramatically demon- star.d mechanical stresses. the following cause the cooling a,r which ,s c,rcula:ecl s:!J::.'.l cy tre f::llow1r.g t<;;st. test has been dev,sed. through the motor c:::mes fro:-n the sur-round1og atmospnere of the mot:Jr and When a motor winding 1s first connected often conta11:s a great deal cf abrasive across the line. there ,s a large current in- paniculate matter. Tnis part:cu!ate maner 1s rush to mechan,cal forces. which !~nd to forced at high veloci:*, over tne end wind-severely distort them. Adequate brac1l"lg ings of the stator co,1s and 1s eau,valent to prevents the ac:ual deformation. b;,;t the a sandblast common1y usej ,,, manv indus-forc:s are nevertheless present. trral appl1cat1cns for clean11:g and str1pc1r.g operat,cns.

A motor w,th Thermalast,c Epoxy ir.sulat,on was subJectec to 1.000 full-voltage s:arts. i'n order :o allow the w,nc,ngs 10 ocerate After complet;on of the 1 .000 fuli-voltage under tnese adverse ccnd1t1or,s. sc:ec1al stans. the entire wc,uno stator was suo- treatments have oeen develoDe-:j_ It 1s well merged in a tanic of water and a ten-minute known that elastomers or ruObers are d,elecrnc absorct,on curve was mace c3pable of absorb1r.g energy ucon ,rnpact 1mmed1ately af:er submersion. with another narcer material. Tnerefore. 111e 371544 scecial treatments consist cf a layer of an F*g.11- Cycling ,~s, of wound s1a1or-packed w,th elastomeric material wnich is cacable of

,c.e. absorc,ng this energy and literally boun:::-

20000 .;:. ing the abrasive particles off the surface.

7*-

1 s~ows a \fl.Ounj stator packed l_-::_

ce so mat :r.e *'!'.Oedced therma-

.s ,,, t:-e w1nO:rg ,r.::,ca1e minus 40"C.

.'.-e:i :'"'e w,r,::,r.g rea:r.ej m,s tempera-

.10000 E

Oriq,nal a"d lm'Nd1a,117 A.fter Sutuner1,ot'I Allor Stcrl

Slo~

Teal The coatrngs are a;:oi,ed over 1ne com-ple:ed w,no,ng bv c:pc,r.g or soray.!1g so as to prov,ce an energy-aoso*o1:-:g surface_

j

g. iOOO _ ** ::.1li

.!e: .,e ory ,::e was rerr;~e::I ar.d the 2 6000 .*:"'.I Tn,s had to be aver*, special :osi1ng w~*ch s:.:::r *.-.as 1mmed1Jtely 6i'acea in an oven. _-sooo

wou!:::1 have tne abil1r. to wor,:: r,ot only as

..-. --::~ r.ad ceen preneat~:l to 150"C. Tr.:s

~*. JS *ece.at::. four 11mes_ cv::1,ng between *

~ 4000

" !,000 J apcl:e::I. cut also at tne ocerat1rg tem:::era-ture of :he cod surface ard to rnarr:ta:n :n.s

-ese temperature lim,ts. a!1d the stater

-e'"* c::mp:etelv submerged ,n water. F*g-a:

cZ e

. . . . -~--. -~i

. . *]

property over the long per,ocs of t,me tne machines are expec1ed to run.

.;:e , 2 stiows the results :ibtained. and 10- 0

] *-: .

.::::~s tha: ,he moisture resistance 1s un- .!:. 1000 ~ ....... .,. ... ~ J;w. ~ ........... Radiation Resistance of Thermalastic

~:::ed bv trermal shoc.;s of 190"C. .Z5 4 5 T I Z 3 4 5 T 10 Epoxy Insulation Of the various components tr.at go to ma~e Fig. 13. lnsul1tzon 11u,,11nce char1c1ens11cs of sub* up the Thermalast,c Epoxy insula11on sys-merged Tt>erm1IHt1C Epexy Sliter wind,ng tem. the epoxy ,mpregnant 1s tne most sus-(4160 volts) alter motor wn 1ub1.ctotd 101,000 cect1ble to rad1at1on damage. The mica full-voll*g* stan,.

and fiber glass portions will be unaffected

~A.:*::. .! i Even after these severe cond1t1ons. the winding had greater than 10.000 megohms by dosage levels that would cemoy tne 1mpregoat1ng resin. However. tne epoxy of insulation resistance after ten mmutes 1mpregoaot. because C'I its aromatrc nature.

~::

.,,:, ..:-:c ~

of voltage as shown in Figure 13 . 1s one of the better resinous materials w:tn

~ 1C..X: ...:_:: _; ...

'6 -, .

regard to radrat,on resistance. hav1r.g a pre-dicted life of 40 years at a oosage of up to 1 Qi rads at low rad,at1on rates of less s

"""'-'W::S..e--~ .... ~ .... ~

--,, -ill E!l 14 -1!1 M &a 00 :u:I IC !Ell than l 00 rads per hour. Normal radiation levels w1tnin the containment vessel of a

....,_

P ,s .:J ,i: :.1 ~ <:1 w '.:ail n:;; llll

} nuclear power station are below a rate of o , --- 4 ~ I .I :!I ~-i :J;:] !J ~ z1 :J 9 50 rads per hour with a total oosage of

] ::_:; .r;}JJJ::l:J ~J~:}]JJ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 x 10 7 rads over a period of 40 years.

Therefore. Thermalast,c Ecoxy windrngs m T1rr.,e, Minutes a tyc1cal rad,atron environment will operate F-9. 12. Ettect of thermal cyci1r>~ on Therm1!111ic *----------------*-------*- ---* _________ _ _.. many: years_w,th no.. measureable.deter1or, ____ ---** **--*---- _

"' *-su111,on* O:CiwHrn1rno.,aiu*re*o1 "'40"C at1on due to tne rad,at1on .

. ~ :c_ .

\,..__

..*. - ------*---. -.~-__-'-_**-*-**....c**-=***=*,-~***.*=--'---"'-~== - . -_c.:.:..::.c::::.--::.=::::::._:_: The-rmaiast.ic**=-fpox.y"* . :..:.:c _____________ **

Insulation For Large Ac Motors

\ F/A and other Motors with Form-

. --:--~-; Wound Coils - Squirrel-Cage. PAM .

Wound Rotor. Synchronous Winding Repairs 3. In the case of widespread carnage in-The standard1za11on of Thermalast:c Epoxy volving a number cf coils. a comple:e re-insulation for large motors allows a com- wind 1s recommended. The elaborate facd-pletely new approach to the suoiect of 1t1es required* for tne Thermalast,c Eooxy winding repairs and the desirability of system malce it necessary to re1urn the carrying spare cods. s:ator to the factor, to* obtain the original processing. On a breakdown basis. this can First of all. the poss1bd1ty of w1no1ng re- be cone usua!iy in three*weeks or less and pairs beina required :s reduced to a mini- requires no longer than woul.:J De recuire::1 mum far below that pOSS1ble With any pre- to order coils and rewind 1n the field.

VIOUS 1nsulat1on system.

If consideration 1s given to stocicing a full The basic approach 1s to crov1ce for the set of cods to oro1ect against such a failure con!ingenc1es that may arise w:th minimum on a Tnermalasuc Ecoxy insulated machine.

total expense to the user mciuo:ng both the recor::mendat1on 1s that a complete repair and oownt1me cost. wound stator be stocked. This will cost no more than a full set of cods plus the ex-Depending on the extent of daniage. pense of stripping tne old winding and several a!ternatives are available ior wind- winding :he new cods in anv machine.

ing repairs: Downtime is reduced to a m1n1mum.

1. Mcst failures resulting from accidental mechanical damage occur on tne end windings where the coil 1s exposed. Re-pairs to the end winding external to the core can be made by the conventional patch1r.g method.

2. !n the remote pcss1bil1ty of coil fad1,Jre w;tn11, the slot. 1t 1s not practical to replace co:ls by conventional means. Tr.e very processing of complete 1mpregnat1on and bonding which insures a failure-free cod also makes 1t 1mpract1cal to 11ft enougn cods to replace both top and bonom cod sides of a dama_ged coil.

To replace a damaged coil in any machine ..

it has always been necessary to lift at least a full throw of coils to get the new coil in.

Quite often. this operation results in Clam-age to a.her coils. Therefore. wnen spare coils.are considered desirable. it has been standard practice to carry at least % or ~ of a set to replace one or two damaged cods.

Westinghouse has developed a technique of cod replacement. for use on motors

_manufactured at East Pittsburgh. which maices it unnecessary to disturb any coils except the damaged coil or. at most. the other coil in the same slot.

For *Thermalastic Epoxy insulated machines.

a standard* repair !cit can be supplied in-cluding six half cods suitable for replacing either top or bottom sides of the coil. Also included are. the necessary materials. tools and instrucuons for replacing damaged coils. Complete spare Thermalast1c Epoxy

. : .* : - - * *::~~'~:,." " ' Ml t,m,shod lo, th."'

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 57 TER Category: IIa

Description:

CHARGING PUMP MOTORS Manufacturer, Model: Westinghouse 68659 Tag No(s).:* 1-CH-P-lA, B, and C Worksheet No(s).: 6-7, 6-8, 6-9 QDR No.: 5437-08-01 Location: AB-2C DISCREPANCY Licensee qualified the equipment, but did not furnish sufficient documentation to support 1) the similarity between test specimen and the equipment, 2) radiation resistance of the lube oil and bearing greases and;3) aging surveillance and replacement schedule.

RESPONSE

Westinghouse correspondence inc"luded Iri___ the__________ - ----.

reference QDR, were re-reviewed and the similarity between the test specimen and the__ equip!!!~I1!=, {tnc_luding th~ moto~ _

leads) is established. -

This equipment should be classified in Category IIc.

"Equipment satisfies all Requirements Except Qualified Life or Replacement Schedule Justified".

The attached discussion and clarification of the charg-ing pump motors should preclude FRC concern reqardinq the similarity-between the test specimen and the equipment, radiation capabilities and aging qualification .

ATTACHMENT TOTER ITEM #57

.(VEPCO SURRY UNIT #1)-

CHARGING PUMP*MOTORS:

Tag Nos: 1-C~-P-lA,lB & lC for Unit #1 QDR Nos: 5437-08-01 for. Unit #1 5437-69-01 for Unit #2

1. Similarity Between Test Specimen and the Eqliipmerit.

i) Similarity between the motor lead insulation of the test specimen and the equipment:

a) Westinghouse letter no. NAW-3615 dated Oct. 30, 1980 (included in the referenced QDR, page* 3a) indicates on page 2 that the Surry pump motor insulation for the charging pumps:is thermalastic epoxy and the qualification is covered by WCAP-8754.

ii) Similarity between the motor lead insulation of the test specimen and the equipment:

a) Westinghouse letter no. NAW-3620 (included in the referenced QDR, page 2c) indicates that for the motors which employ the thermalastic epoxy insula-tion system, the testing documented in WCAP-8754 includes all organic insulating materials in the motor. Therefore wedges and cabling need not be addressed separately for these motors.

b) The therrnalastic epoxy system, .developed by.

Westinghouse and first put into service *in 1962, (see WCAP-8754, Para. 4-2) and only _one insulation specification, LIT-711306, were in use for winding motor coils (see QDR-5437-08-01, Section 2, Page 2b}, it has been determined that these motors had motor to leadsplice materials as discussed in specification LIT~711306.

Specification LIT-711306: l~ad in~ulation and tying (page 3 of 14), winding procedure (paragraph 29, page 5 of 14), aQd sketches D and E (page 11 of 14) indicate the use of sleeving (M#41524-AV), resin tape (M#9948-3), micatape (M#43865-AD), and glass tape (M#41514~CT) as the motor to leadsplice materials. These materials are in fact the ma-terials used when winding the subject motor coils .

Westinghouse letter dated April 9, 1981, in reference to letters NCW-1317 and NAW-3615, states that motorettes using an insulation system similar to the one prescribed in the rewind specification* (LIT~711306) were tested for thermal performance in accordance with IEEE 275. This is basically the same test: as described i-n paragraph 4-~3 of _WCAP-8754-p~r IEEE 275~1966. Therefore the motor to leadsplice materials were tested, as part of the formettes, for thermal endurance to determine the resistance of the thermalastic epoxy system to thermal aging, following the guidelines for accelerated func-tional testing, as outlined in IEEE 275-1966.

c) In addition to the above the review of _WCAP-7_829, table #22, page 46 indicate that the motor lead cable is silicone rubberized glass*taped insula-tion.* This is the same as indicated in Westing-house insulation spec. LIT-711306.

d)- The same is confirmed from Westinghouse Applica-tion Data 3170 (copy attached).

Considering the above facts it is concluded that the motor lead insulation of the subject motor

-* 2.

is the same as the test specimen of WCAP-8754 and 7829.

Lubrication Radiation Resistance and Aging Review of the plant records shows that Exxon-Teresstic-46 has been used for charging pump motor lubrication.* The radiation resistance capabilities of Exxon-Teresstic-46

-~ is 1.4xlo7 Rads per Westinghouse letter no. NAW~3615 dated October 30, 1980 {copy attached).

The worksheets will be revised to reflect the overall radiation resistance qualification of the motors as l.4xl07 Rads.

7 Because this qualification value of 1.4xlo rads envelops the plant total required dose of *1.4x106 rads, the subject motors are considered qualif'ied for the radiation *

3. Although an aging analysis is performed (see the attached

'1,. *_ analysis} a detailed maintenance piocedures and aging surveillance and replacement schedule will be *submitted.

QUALIFIED LIFE OF WESTINGHOUSE CHARGING ~UMP MOTORS

. 1) Westinghouse letter rio. VPU(RRK)-48 dated Jan. 9, 1981 (page 2c of the QDR) indicates that the actual maximum winding temperature rise from test is 70°C at 1.15 SF load for the Surry pump motors. This gives a maximum continuous operating-temperature of 110°C (70+40) at the plant normal ambient temperature of 104°F(40°C).

2) Because the plant environmental conditions for the motors do not change during the .LOCA the same operating tempera-ture (110°C) is considered during normal as well as .during LOCA conditions. During HELB conditions the ambient temperature goes to 140°F (from 104°F normal) for one hour.

3) Out of the three charging pumps one pump is required to operate continuously during the plant operation. It is conservative to assume that each pump motor will operate continuously for 14 years and remain idle for 26 years.,

.In.the following analysis it is shown that the qualified life of the motor is more than the required 14 years of continuous operafing and 26 years of non o~erating lives.

4) From Fig. 4-1 of WCAP-8754 (thermal aging curve for therma-lastic epoxy system, per IEEE Std.-275-1966) the qualified life at 120°C = 200,000 hours0 days 0 hours 0 weeks 0 months and from Fig. 9-1 (in which Westinghouse has drawn a most conservative projected quali-fied insulation life of motor) the qualified life at 120°C = 96,000 hours0 days 0 hours 0 weeks 0 months .

5) Activation Energy:

The activation energy is calculated by Arrhenius extrapola-tion as follows:

From Fig. 9-1 of WCAP-8754 the qualified life at 120°C =

90,000 hours0 days 0 hours 0 weeks 0 months and at 130°C = 45;ooo hours~

Arrhenius equation

.[ (T2 ~TI)

- *.K Tl _T2 where Tx = life at *a higher temperature= 45;000 hours0 days 0 hours 0 weeks 0 months TL = life at a lower. temperature = 90;000 hours0 days 0 hours 0 weeks 0 months

~ = activation energy = to be calculated

K = Boltzman Constant = 8.617xlo'°': 5 T2 = higher temperature = 130 + 273 = 403°K Tl = lower temperature = 120 + 273 = 393°K Substituting in the above equation:

~x (403-393) *

-a.167x403x393xl0 5 44,000 = 96,000 e Solving:

~ = 1.08 == 1.0

6) Calculation of Qualified Life*

i) From Fig. 9-1 of WCAP-8754 the qualified life at 120°C is 96,000 hours0 days 0 hours 0 weeks 0 months . This life is converted at 110°C (which is maximum operating temp of the motors per Westinghouse letter no. VPU(RRU)-48 dated Jan. 9, 1981) by using Arrhenius extrapolations:

Arrhenius equation

.[ (T 2-Tl)

- K T xT 1 2 T

X

= TL e where T

X

= 96,000 hours0 days 0 hours 0 weeks 0 months TL = to be calculated T2 = 120°C + 273 = 393°K

Tl = *110°c + 273 = 383°K 0 = 1. 0

Substituting the. values

1. 0 X (393:_;383)

- 8.617xlo~sx3~3x383 96,000 = TL e Solving:

TL= 207,542 hour0.00627 days 0.151 hours 8.96164e-4 weeks 2.06231e-4 months s= 23.69 years Conclusions Hence the qualified life of the motor at 110°C is 23.69 years. Out of this the motor is_required to r~n continuously for 14 years. For conservatism let us assume that it operated continuously for 20 years at 11o~c.

ii). Now in the following calculations it is shown that the life of 3.69 years (23.69 - 20) at 110°C is much more severe than the required 20 years of non operating life at plant ambient temp. of 40°C.

Tx = 3.69 years= 32324 hours TL= to be calculated T 2 = 110°C + 273 = 383°K Tl= 40°C + 273 = 313°K Substituting in the Arrhenius equation 1.0 X (383-313)

- 8.617x383x313xlo~5 32324 = TL e Solving TL = 3235 years > 20 years.

Hence from the above calculations it is concluded that the subject motor is qualified for 40 years of life for the required plant service conditions .

\ .

___ _:__---:....;.::.:_~--- - -* ___ - - --- -*-* ----*-. .---

.. ... _. _, ___ *--*-- - ....... -~----------------

Westinghouse Thermalastic Epoxy Insulation For Large Ac- Motors -- -

F/A end other Motors with Form-

\'iound Coils - Squrnel-Cet1e. PAM.

Wound Rotor, Synchronous Thermalasuc Epoxy insulation is the stand- Continuous research and testing of all good resistance to moisture and to pra::-

ard on all large ac machrnes. 7.0::XJ volls l::no""'Tl insulating ma1enals and svs1ems t1cally ell types of chemical con1amir.2n1s.

and below. built !I\ E!st P1nst:urgh using have enabled Westinghouse to keep Ther- They have been proven rn laboratory tes:s form-wound coils. up through the 85" dia- malast1c insulation bener than any other described later and by field service.

meter frame size. This will include pract,- insulation.

cally all type F/A m2ch1nes. It ,s also now Processing ThermaI2st1c Epoxv insula11or, available on s.ome machines rated 13.8 kV. One basic feature of Thermalast1c Epoicy includes vacuum-pressure 1mpre;_rna11or; o!

Therm elastic fpo,cy 1s 2!so ava:lable on form- insulation ,s the use of m,ca in the ground the complete wound s1a1or. s:ator coils as WP.II as coil connections. Tn:s makes 1:

. wound coils for r111m;;;s manulactured a: ine wall. No other material can equal m,ca from Buffalo Plant. the stanopo1nt of electrrc strength, voltage possible to give all parts of tne win:i*:,;is endur1Jnce end reltabrl1ty. tne full efiect of tne high resin fill the.! 1s "Thermal11st1c" h~s maoe an enviable name achieved wrth the vacuum-pressure tech-for nself as an insulet,or.. It was the first So/ventless epoxy resins ue impregnated nioue. The coils ere not de!ormed or real advancement in msulat1or. in over 20 into the mica which his been preplaced &tressed *lifter impregnation.

years when it wes f1r,t introduced rn l 94 9 on I form-wound coil. Then with both on large turbine generaiors. mia and resin in pasition. chemical re- The processes descrrbe:i are those ol the West1nehouse be,2an 10 use it on lar~e 1e1ion i, initiated which transforms the Ltrge Ro:atrng Apparatus D1v1s,on rn East

_mo:ors 1n 1 S;,?., It i5 1mpomrnt to remember - - re-<>rn into a ,olid which lock.s Ind binds P1nsburgh. Pr,manly due to d1tterences rn-thu Thermalesttc in,ulatron is * ~em, them,~ into a comoos11e mass. The result- the size cf motors manufactlfte:i at tne not I material. As 1uch. n is not static and inQ end product then ta~es edv11ntage of Su~.ilo Lsrge Ac and De Motor D1v1s,or..

many improvements rn rts comoonents and the excellent propen1es of both the mica soec1!1c processes vary rn minor detail: Tne processing have been* made s,nce rt was 1nd the resin. The outstanding character- usent1ai characterrstrcs of tne insulation first use:,. _____ .. _ .. _~1cs oft~ eooxies is_the1r_ extremely Sy'item_ a:eJhe same.__

HOte!Tlber, 19 71 Sur:,er110e~ 1 -chn1~l D1t1 3170. e&1P:l June. l 968 E. c1nla. n,o,.os

-- ..:._:_ ____ - --*-**----*-- --**-***~-~-----~~--------

Apphc.:ion Da:a3ffo* _P_e_g~*i--=*-, . . . . :- .---;:- .

Westingt,ouse e~-tZ~~~-

-$.~

Sutor Coil, Tnp en::i tu*ns of :he s:alor coils are lrrmly T ne ,nsuiat,0:1 1mmed,a1ely a:::Jace.:-11 to tlit' brace:i to w;:nstand lull-voltage star.s with copper concuc:ors 1s generaiiy that wh,ch a se> 1 ,es of 1ns:;:a1ed sucpor: r,ngs as well

,risulates tne var,ous turns in t!'le cod from a~ bracEs belweeri coil end turns. wh1c'1 1n eacn 01ner. Th1s*,s a very 1mp:::r1ant oari of effe:1 form an archbound structure at these the 1nsulat1on system. one wr.,::n lreouer.tly po,nis Th,;; ma:e~oai use.::l as a brace be-IS not given tne attent,on 11 oeserves. Sincf twt'e1 COil en::i turns IS a non-woven poly-the ma;or.ty cl s: motors are started ester fer: wh,ch has both resil,er.cy an:l across-the-ltne. tne*e ,s a poss,bil1ty tha: absoroenc~*-

steep fronted .. 1mpulse type v,aves can oe

moose:i on the w;n:iing 1 nese waves Alte* ir.sta!ia:,on of all earls anc comple-

, .. ~--~ :.. .:;~. C>!e::*.: ~::ess on tr.e turn insu- t1c-ri of we:g,ng and bracing. tr,e cor>nec-1at1:l!'l. espe:,a*1v tne turns o! tne s1a:or t*.)ns are made and 1nsulate:l. ar.d the stator co11s near the line terrnma!s. 1s reao*, for 1moregnat,on.

In the light of mese fa:::s and the general Vacuum-Pri!a~ure Impregnation industry trer1d to higher operat,ng voltages. Tn£ prEr,eate: s:a1or 1s lowered into the mica. whrch ;novices a pos:t1ve ele:::r,c vacuuT. pressure tank. and the air evacu-barrier of very high strength. is use:l as ate::: to a ver,, low absolute pressure. The turn insulation for all corls ra1ec: 4 kV and epoxy res,n !S then rntroouce:j_ while rnain-

!bove icr me larger size mo:ors. On sma!!er :a,n,ng t!'le vacuum. to a level that com-s,ze mo:ors. this addrtronal strength. where pietei*, s:;bmerges all parts of the winding.

requ,reo. is ob1a1nee by the use of enamel Tne va:.;um ,s men release:: and re;:ilace:l plus couble cacron-glass covering. w::~ p::,s11,ve p:essure of sever a! a,;r,ospheres ove* tne l1a;,,11d :esrn. Follcw1ng these steps tr,; stator rs rerr;oved. as showr, in Figure 2.

_,.j"**

C- -

Slot ln1uror,on Clol,ca Tcpered M,co W*opper

,,.,,o;:,per App11eo ,n for Smoo!h Jo,nr w*lh Snee! Form l End Tope ln1u1ored I Cor.duclors E11ro Top,no for I

End Turn Lead Reonlorcements Oultr Binder - lnJuloloon F,ll 1 Typ,cAI str.01 coil showing 1lorr,en11 of F,? 2. Aher 1mi:,regn111on.1he 1t"1or II removod from 1n1ul1t1on. 1ne 11nL ar,c, placed Jn an oven tor curing.

Tne m1ca::eous ground insula:in;i mater,als Tne ne:r: s1ep in the process takes place in ere appl,ed as shown 1r. detarl in Fig 1. All an oven. wnere the resin 1s cure:l.

mater,als used 11re designed to be bolh In a::ir:,on 10 ?he impregnation of the comoa1,ble w11n. 11nd selected components w:n.:i,n;i 1he bracing sys:em has b~n built of. tne comp!e:e insulat,on sys:em. "rn place" bv t'le absorption of epoxy resin ano subseauenl cure 1n tne polyester felt.

Winding Sutor Tnrs 9,ves very high stre:1g1h to the bracing .

... . ------ . A: tne start of the winding operation tl'.e scheme.

stator core cons,sts of !!'le assembled cunch1ncs and restra:nrng eno p:ates tr,us o*urrng the manufa::1ure of the corls and p*ov1d,ng a max,mum of access,brl1tv our- w1no,n;;. aua!11,* control procedures are .

mg coil assembly of larger size motors. The use:i con:rnuouslv to monitor the :,hysrcal fact tnat the coils 11re uhirnoregnated at c,mens,ons an: electrrcal_ ,ntegnt~* of the tn1s _stage prov1ces ease of installauon. 1nsulat1on.

_____ ____ .,_ ..,._*~- * -- - * * - - * - - . **** -- -:"7-'.'."

Thermalastic Epoxy Insulation For Large Ac Motors

.,0,..

1,. .

F/A and other Motors w1:n Form-Wound Coils - Squirrel-Cage. PAM.

Wound Rotor, Synchrono..is Evaluation and Test Program Voltage Endurance lnermalast1c Epoxy insulation was adopted Smee insulation 1n large ma:hines is ex-as standard for large a:: moto:s only efter pe:ted to perform for a long pe11od of ume.

c.lmplet1on of an ex.ensive evaluat,on and a voltage endurance test has been de-.,1se::.

test program. A desc11ption o! some of the In this test. sample coils are prepared and more imponant tests follows. conne::te:i as described for tne shor1-t1me elec:mc tests.

Electric Strength Smee the fundamen1al function of insula- Eie:tr1c strength is evaluate:i rn de:::-th by a tion is to withstand electric s:ress. me !1rs1 series of brea~down tests for each insula-

,eries of tests on any msulat1on svstem 1s tion system. A group of sample coils for 10 determine its sholi-l1me electric strength. ea::n svstem 1s tested a: various voltagi?

Complete insulated coils are used fc,: tn1s leve!s for fixed time intervals which may be test. one minute. one hour. one weeic or more.

By pionmg average .. hot:r* values for the It 1s des11a:ile that for any pa:1;cula1 voltag= d1fieren: time periods. a voltage er.:uran::e class the average breakdown voltage be as cur\'e is created. Such a cur.-e ,s shown 1n high as possible. However. rt rs essential Figure 3.

that tne values be examined and analyzed

&tat1st1cally. It 1s the Westinghouse concept Mu:h of the data thus obtained tends to that. using the p11nc1ples of s:a:,s:1cal plot in a straight line. One way of looking iinalys:s. the coi!s have a b*ea~down level at such data 1s to estabhsr, an ..operating well above the test level 1or rnd1\*ioual coils. level .. and examine where tne. extrapolated voltage endurance curve will mte*se:t this Thermaiastic Epoxy insula!,C!"l has botf-i a .. opera11ng lever*. The Tt>ermalasl!c insula-higher average shon-11me ele::t11c stre!"l,llh tion cu*ve intersects the ooerat,ng sHess end 1s more reproou::,bie frcm co*l-to-co1l level at a time in ex::ess of 1 O:) years. T nese than other insulation svstems. are results of labora:ory tes:s on onlv or,e L, of the oegrao1n'1 mechanisms that atte:t msulat1on and. therefore. a*e not complete md1cat1ons of actual ooera:ing ltfe. How-ever. systems that fail to g, .. e mdicat:ons of sat1sfa:tory life rr. this very fundamental test are not considered favorably.

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A,::;,i1cai1on Data 3170 Page 4 Moisture Resistance T-:: f1~~: s::ee,..:rg tesl fqr moisture res,st-ar:e *s a tes: c:i :rio1v1dual c:ils susoended 1n H:t \hc:ter. These are s:an:laro co,1s sub-rr.eced -ex-:ect for l"e leads and !rent loops a..,d-;:on:,r.:..ouslv suoiected to normal

-..cl:3;:;e to ;r:_ur.j_ This 1s the value of the rna~.~ur"'\ l,r:-:o-ground cperat1r.g volt3ge.

T.:t.:I r.ours to !a;lure are_ then measured for e~cn -:,: :r.e s*tsterns und-::r invest*ga:1cn.

.=w ;aci.. ¥ -Cl*'

*t *~

a:*:.. +re* * **,e;;, ,,. r

4Ht:Ase>~

A complete 4160 vclt Tne*,*Nlast,c Epoxy

DC 5C<l

.C--:ys -~ ==*'.J'! Sl,Hor was submer;;ed ,n a tank of water C0!1:a1n1ng 5% salt Cy we,gr.: (_aporox1mate Avtii!;e 1,fe cf 1~su!a11on svstems.. immersed se.a water concer.t,.rnori) !or a per,cd of 14

.-;;~-

!2ge ,1:;p,;!-d conur.uously.

da*,s. The 1r.sula1,on res,stance was cned::-

r*;;Jre ~ ;:-c*,11,s tre *esi.;lts cbta1ne:l ov this rr.;,:c;:= . ..ls :3,; :e seen. the eooxv :esin ed :hroughout tr.:s period. i=,gure 5 1s the plot of 1rsula:1on res,stance cbta1ned t:iroi.;gnout tne 14 ::ay per:od.

,'."""":~e;:-a"': :r."':la:-:s o~!s:3~j:rg moisture r:~-5!3r.::: t~ ::""e l!"1errr.alast1c concept.

Trere are variations 1n the 'eve!, probably due to changes ,n the cor:::.ict1v1rv of the 1r>sulat1on surfaces at tr.e *u,nd:ng :erm,:,a!s.

but all re3Ci:1,;:is a*e qwte r,gh. F:gure 7 is a clot of ire d:e1ec:wc ats:>rot1on tests taicen before and after the 14 day period wn1le 1n tne water.

At ;he conclus,on of m,s oeriod the stator was removed from tne tank: and without F~- 8. T~ of wounel ,, 50-volt st~tor undw rinsing or dr11ng was suo;ected to a 4800 cond,t1on1 of 1 ~ huM".1d1ty.

vcit ac rms high po1en11al :est. The w1nd1ng w,thnelc 1h15 test with no d,li1cultv. This 361873 indicates the w,no1r.g could have been F1; S Co:T:~lete motor w1r,dir.g ,mm.-rs+d 1n WllrM' cieaned and dried and relurned to service.

fer iest ct moisture rei:1anc1.

In still an:,ther test on a c:::rr.plete windirig.

T~;:s en *r.:::v*d;.;31 coils w11holJt connec- the ef!ec: of continuous ex::iosure to 100%

~*c ~s. t-oweve*. aie net tr.e entire story. Tr.e re!at1ve hum1C1ty a! 50"C was investigated.

re:-:: s::.::e *;:s s:3r.ce cf ccmp!e:e w,n::1r;is In some res;iec!s tr.is 1s a more severe test

,as .;Is:, teen _,..,est,ga:ed. In F,gure 5 a than actual submersion s,nce water vaoor w-~:;rg ,r-;\,:i,r.g all connections ,s sr.own has a h1gn degree -:>f penetration through co~:;le:ely S<..Drr-erged 1n a tank of salt !,!ms. Figure 8 sr,ows the results. Aher "N:::r. Tt-f w*no,r-g !eads are connected to more tr,an 3000 hours0.0347 days 0.833 hours 0.00496 weeks 0.00114 months of this type or ex-a r-e;;:;n-. Dr:::ge so that insula!100 res1s- posure. tne Therrr.a!ast1c ::ooxy insulated r~~:e :an t'e 'l1e,asured. w1r,d1ng std! had ir.sula:1cn resistance measured 1r, thousands of 'negorirns.

-- -_-_ --*--=-*-~~~-------__ ----.---- **---** --"' --*---~...,,.,_,,___..__.__ --***

.* *-- ~- **-- --~~- ..... __________ ,.., *--- -------

Thermalastic Epoxy Insulation For Large Ac Motoo F/A and-othe-i Motors-with F-orm- -*

Wound Coils - S0u11nl-Cage, PA~.

Wound Rotor. Synchronous Ch11mic11I Resistance T11bl11 A Resistance to chemical cor-iam,nan:s ,s Solvent & Chemic81 Resistenc* of Thermal:rtic:: Epoxy Resin Casting, r another factor in marv industr,es. In loo~-

rng at resistance to acids. bases anc sol-Sol**"1 T.:,-.e ol l!""'Tlei1*C"'

S'1ore D Harcines5 F-orctnt*2)

"w\-e*g:it CnLH~

I Poree~: l>

T~.. crr.eu er Ch,*,i;*

?.1Hr; l vents. ncth1 ng has oeen found that ,s tne

eaual of the e:::oxy resins. Tab!e A s~ows a tabulation. of some of the man-. tes1; mace

~o~

...cetic I 0

i.: nou*s 64 es 0

C 0

o*

Ex~e:.e~:

Ac,c I -'3 nou*s ES C 0 whe1e,n res,n samples were subiecteo :o i Ch'S es 0 0 hau:d ba:ns of various contamina:,ng ma- 1:i can B6 0 0 ter:als. The resin use::l 1n Thermalast,:: 10-. 64 0 0 t..J.;Ai:e~:

0 i:poxy 1nsulat1on snows outstanding :es1s- Sc:::::1urr: :: hOU!S :5 0 0 1ance 10 all of them. Hy::roz!Oe 43 nours ss 0 0 7 c:avs ES 0 0

0 cays 86 0 0 Therm11I Endurance Temperature 1s widely accepted as oe,rg S5 Acetcne 0 0 C ' Goe:::

one of the hm1t1ng factors in 1nsula!:.?n i,!e. I 24 r.ou~s 61 + es + 9.5

5 '"'::,:.i*s 45 + 1S 3 + 1 i.5 To determine the abii1ty of 1r.sula,1on to i2 00\J(S De:C!'!"!Pose:

s:ano up uncer thermal aging. tesl!ng *s .:!one 1 :i :avs by following the bas,c concept of func-tional testing outlined 1n IE::E 275. Benzene 0 87 0 0 E:r:ene~-

Zl. nours sa 0 0

~ 5 n:;urs ea 0 0 This ,s the **motorerte .. tyoe of test.!"'g 7 :a*1s 68 0 0 wherein small. compiete cods are mace ,,., : :, :ats Ee v 0 accoroance w::h actual processes em-ployed 1n the 1rsulat1on system being Eval-Tr,c~1C!O*

etn,.1er!! . 2t* 0 "1ovrs 86 4S + 75 0 0

+15.5 Gccc uated. Thes"° coils are tren mounted ,n slots .:a r.o..;,s Decornc,ose:,

on a rr.o:oret1e and the leads broug~: out :n 7 :a*,s

, C :a...,s an a:;::propnate fashion as snown rn F,i;;:.ire 9 so tr.at e!ectr.cal tes:s can be made. Tnese D,s.:111e:: C I 93 0 0 t.z::e*1er.:

motorenes are then sub;ecte::! to a cyci,a ",o 24 ~:,~rs

.:3_:,ou*s 85 0 0 of oven aging. mechanical v1bra:1or>. 85 0 0 7 .:avs E5 0 0 hum1d1!1cat1on ano e:ecincal test Follow,r>g_ , C :avs 65 0 0 th,s. tt-e cycle ,s repeated and the nu~ber

,. of cycies to failure 1s recorded.

3LJ066 f;g. 1 D Thlofffl&I onc!urance ol ,n1ul11,on 1y,11m1 !or Fr;. 9. '°1~01or1r:e ua.o !or tuung t1'enT11I ,n- rot111n; m>:.r'llf"\CI ttctl-d 1n motorara, in 1c:cordanc1 c!uuncs cf 1n1u!111cn J'(lt1m1. wolh IEEE 275 (5000 vOl1 prool tel1),

This 1s a comparative test only. There are aga,nst temperature on the horizontal axis.

no standard values for the test conclil,ons As can be seen. tne life of all systems de-or number of cycles or the hours of aging creases with increased temperature. Tne that a system should w,ths1and. If 1s known ""pre-Thermalast,c" curve 1s the data ot;,-

however. that for more than 30 years class* ta,ned on me c:ass S 1nsulat,or> svs:em 8 insulatron has been 1n serv,ce and that used r:r101 to ,r-e,matast,:::. In acing to me 1t has oeiformeCl sat1sfactordy. The proce- Thermatast,c Ec::xv svstem. a curve 1s co-dure 1s. therefore. 10 comoare new or oro- tarneo wn,cn ,s srutte.:i over O"' th 1 ~* al pose-c systems wrth the oloer ser..1:::*e- sca,e ::i.- aooi.,1 . , r>:s 1n itself 1nd*ca:es proven svstem*s. Figure 10 shows the data a n,gn oroer c! * :nermaJ rese:ve** 1n ; ner-CDta,ned by such tests. Hours cf life ,s malast,:: Epoxy ,nsulat1on. Tr,rs system

~llotted logar1thm1cally on the ven1:::al axis cualii,es for class F thermal ratrng.

-~---------. - ... *~---*--* *-------------- *-----~--- **-** ~~-- - - ,_._ _.._ --~---*--~------------- -*.

Westinghouse

(~

Thermal Cycling Mechanical Strength Abrasion Resistance

~.l ~.:::,rs .n serv,ce a~e reci..:!'f:l to with- All motor 1nsulat1on may be sub1ecte::l to r-.1otcrs are not 1r.ire:uent!y e~oectec :o

~:.;:-:: .*a:*;;r.g degrees ot tnermal c*,clmg. severe mechar.,ca! stresses dur;r,g opera- o~erate 1n an environrner1t -.... :-:::~ suo;e~!S T*e ao,l:r:, of Therma1as1::: i:poxy insula11on tion. To dete'.mine the ab1l1ty of tne com- 1r.e cod insulation to oomoaromer.t tv

~:> .-.*t""*sr.;ro tl"'1erma! c*,cling 3r.d rr.a1nta;n o*lete Tnermal2st,c Eoc,xv w1nc1ng to with* h,ghl*, abrasive oart1cles. Tr.:s ::,c::urs oe-rr.: s:*.,*e rEs:stan:e ,s d:arnat,cally oemon- stand mechanical stresses. tne foliow,ng cause the cool1r,g a,r wh,ch is c,rcu1a:e::

s:*.;:e::: c*, tl"e f:!lowi:-.g t,;st. test has been devised. throug'l 1ne rr.otor c:mes frc~ :he s..:r-rouni:lirig atmcspnere of the rn:itor C:'1~

When a motor winding ,s first connected often conta1r.s a greal deal cf abrasive acr.:,ss :ne line. there ,s a iarge cuire:-.t in- pan1cu!ate rr.at:er. Tn,s .:ia*t,c:,!a:e rr.a .. :r is rush to mecnan1::al for:es. wn1ch !e:.c to forced at h,g'l veloc;:*1 over t:.e ena wind-severely distort tnem. A::ieouate bra::,r,g ings of 1ne s,a:or coils an::l ,s eou*vai2,,t to oreve'1:S the ac:ual delorrr.at1Qn, b~: the a sanco1ast commo:.1y usej ,., manv 1r:~us-fo:c:s are nevenheless present. tr;al aoo;icat1::-,s !or clean1r.g ar.d sw;:::i1r.;;

ooerat1cns.

A motor w:th Trierm.:;!ast,c Eocxy 1r.sulat1on was subJe::tec to 1 .OGO fu1:. 11oltage s:arts. i'n order :o al!C',v the *...,11101r.gs ::i ooera:e Alter compiet,on of tne 1.000 ful1-vo::c;;e under l!"',es2 aovers:: ccnd,t*or,s. soec,21 staris. the enrne wouna stator was sue- treatments have oeen deveiooed. lt ,s well merged in a tanic of water and a ten-m,r:ute known :hat l:'las,omers or r~boers are ai-ele-:trz: abscrot1on C'.Jrve v,.,as mace c3p2b1':' of atscr~ii'g ~ne!*;*{ :.;oC\n impact

,mmec,ate!y af,i.'r submersion. with anotner naroer material. lr,erefore. :ne 371544 soe:1al treatmen:s ccr:s;st cf a la*{er of an F*;. 11. Cvci,c.g test cl wound s111or-pa-cked with elastomer,c material wnich 1s :aoable of 1t.e. absoro1ng th,s energy and literally b-::iun:-

zooco **. ing rne abrasive partdes cff :ne surface.

~-1 s-o*.r,s a ""cu:,j s:a:cr paci:e:::1 J

Ori91ncl a"d !lll!M<1101o17

~-; *c~ so t!",c:t !r;: -"'?'"Oed:ed t'ier:no . . A.ftQr S1.1b1t1tr1,o" Tr.e coatings are a~o**-=:j ov~r tr.e co:-:;-

::_.::~-::s ,,, 1--: '.-.,i1n;:,:rg :r:=,cate minus ~o*c. .10000 A!ler Slerl*S!O~ ple:ed wrno,n;; bv c:pp1r.g or sora*{.~g so E Tut

.'. -'=!'1 !""*"= \*,,!"' ::r.g rea:r.e:: tr.:~ tem:iera- .<:

g. 7000 as to orov,ce an energy-acso*o1:1g s..;*ia:e.

~~: ~~e cry j:: ~-as ref'T'~*,.td ar.j tne 6000 2_-5000 Tn1s na:i 10 be a ver*t soec,al :oating w~ *ch s:.::::r ~-.as ,mmed,at:::!y oiace:: 1n an oven. ..

wou!::l have tr.e abil1r. to wori: r,ot onlv as

- - --::::-, r.ad ce;;n prenea1::,':: to 150"C. Tr::s ~ 4000 appl,e:L out also at ::,e ooera!1!"'g ter:;ce:a-a*,.;s *e:::Ea!::: !our times. c*,::lmg between *" !,000 ture of tt'le coli surface 3!"d 10 rna1r:1a:n :n.s

=-:s: t-:mce~ature lim,~s. a~d u-.e s:atcr

-,;., c:mc:etei*1 submerged in water. F*g*

.. :!!*; 2 sno*..-.s tr.e results obtained. ar.d in-a:

0 CZ 2

, "]*

properry over tn2 long perioos of t,me tr.e machines are expected to run.

=. .:E::;s 1:-.a: :~.,e mO!Sture r-es1s12nce !S un-

]

l~~--,r:a,,,i..A~;,,,l~.J....* .:d~....a..c

' Radiation Resistance of Thermalastic

.::"':::;:.:i bv :r;:rmal sr:oci:.s cf i 90"C. 25 4 5 7 I 2 3 4 5 7 10 Epoxy Insulation T,tn1 W1nut11 0

Of the various ccmpcnems lr.at go to ma~e Fig. 13 lnsui111on 1e$,,tinc1 ch1.rac1,1111,c1 cl sub* up tne i'nermaiast;c Eooxy 1ns1.Jlat1on sys-me-,ged Tt--erm1!asr1c Epoxy sator winding

-... _..... . . \.,- ... - -., e.of:.."?

-=----

~

f .... *

- -~ --* -

~~

(4160 .-cits) 1her mo:or was sub1Kted 101,000 full*vol1ag* 11an1 .

tem. the epoxy ,moregr.ant ,s tne most sus-ceot,ble to ra:::i1atron ::iamage. ine m,ca and fiber glass oort,ons will be unaffected

.,.__ **. - ' -: ..: C.l Even alter these severe cond11,ons. the by dosage leveis that would oestroy tne winding had grea:er than 1 0.000 megohms 1mpregnat1ng resin. However. tne epcxy

..: t *-

of ,nsulat,on resistance after.ten minutes ,mpregnant. because c-f its aromatic nature.

of vol:age as shown in Figure 1 3. 1s one cf tne better res1r,ous ma:eriais w:tl'l regard 10 rad1at1on resistance. hav1r.g a ore~

dieted file of 40 years at a aosage of up to 10 9 ra::s at low rad,at,on rates of less than 100 rads per hour. Normal rad1a:,on levels w,tr11n the containment vessel o! a nuclear power station are below a ra:e of 50 rads per hour with a total oosage of 2 x 101 rads over a oeriod of 40 years.

Therefore. Thermalast,c Epoxy w1nd1ngs 1n a typical rad1at,on environment will ooerate

.. many years w1tn no measureable deterior- ..

a11on due to tne rad,at1on.

... ---1

-- "'---------. -------- ****- - - . - -.. - - -* -- -- . ---~- -- ---****-**-***

Thermalastic Epoxy*

Insulation

\

- For Large Ac MotOf'i F/A and other_ Motors wrtt, Fe=*

Wound Coils - Squirrel-Cage. PAM.

Wound Rotor. Svnchroncus Winding Rep~irs 3. In t~e case of w:ces::irea:l oama;e ,r..

Th'= star,da~:1zat1cr. cf Tt-,errna!as::: Epoxy volv,ng a number cf cods. 3 c:irr::,,e:e re-insulat;or, for large motors allows a corn- w,r.::i 1s re:o.m:ne!'Ocd. Tne elabora,e fa-:i1-ple:ely new approach to tt1e suoie:t cf 111es requ,red !or tne Ti",e'.maias:,c Eoc,cy w,nc;ng repairs and tne des1rabd,ry of svs:ern make 1t necessa:-; to re1urn the c;i~ry,ng S;'.)are cods. s:atcr to !'1e 13c:or1 to c:ta:~ the or*Jinal prccess,rg. On a i::rea~oo*.,.,*r. tas,s. tt11s ca.,

Firs: of all. the pcss,b,lily of wrno,ng re- be ocne usually ;n tnree wee\:s or less a:-:d pairs be,r.g rec:.med :s reduced to a m1n1- reou1res :io lo:iger t~a:, woi.;lj oe reo:;irej rnurr. far below that poss,cle wltn a'1y pre- to ora:o>r cells an:i re ...vir.d 1n tre f1e!d.

v,ous 1nsulai,on system.

If c::,ns:::era,1on :s g,ver. to s:oci:::rg a fu!I Tr-e ?ns,c aocroach :s to crov,ce fer :he set cf co:!s to ::;ro,ect aga,r:st such a faiiure ccr.::ngenc,es that may arise w,th min,mum on a 7ner;.1a!as:,c Eooxy insulated machine.

tot.;I expense to the user rnciuo,ng bo:h the re:or::~er.da:,on 1s that a co:-:iolete repa,r and oowr.t1me cost. wound s:atcr be stoci::ed. This* wdl cost no more than a full se: ol coils olus tl"le ex-De;:enoing en the ex:ent of carnage. pense of s:r,cp,ng trie old w1r.d1ng ar.d sev:ral a!ternatives are available icr w:nd- w1ri:!ir.g ~~e r.ev.* cc-ds 1n ar,v :-nacrur.e.

ir.g reoa1rs: Downtime ,s recuced to a m1n1mum.

1. Most failures resulting frorn accidental mec:;an,cal damage occur on tne er.c w,nc,ngs wnere the co,1 1s exoosed. Re-pa,rs to the er:d winding external to the core can be made by the conver,t1onal

~a::h1r.g mett1od.

2. In the remote pcssibil:ry of coil failure w,:n,n the slot. 11 1s not practical ro re::i!ace co:ls by conventional means. Tr.e verv processing of complete 1mpregnat1cn and bor.d1ng which insures a failure-free corl also maic:es 11 1mpract1cal to lift er.ougn coils to replace both top and bonom coil sides of a damaged coil.

To reprace a damaged coil in any machine:

it has always been necessary to htt at least a full throw of coils to get tne new coil in.

Ourte often. this operat,on results in carn-age :o other coils. Therefore. when spare coi!s are considered desirable. it has been standard practice to carry at least % or ~ of a se: to replace one er tv,,o damaged coils.

Westinghouse has developed a technioue of co,! replacement, for*use on motors I

.m:ir:u!actured at East Pittsburgh. whrch rr.aices it unnecessary to d:sturb any coils except the damaged coil or. at most the other coil in the same slot.

For Thermalast1c Epo):'v insulated machines.

! standard repair 1:rt can be supplied m-clud,nQ six half coils suitable for replacing either top or bottom sides of the co,I. Also included are the necessary ma1er1a!s. tools and 1nstruc11ons for replacing damaged coils. Complete spare Thermalast1c Eooxy

_* ___ ::;:;~,~:,~0,1, '" not I"'"" hed 101 tom

. ~ . .

. ~.\i** J""

NAW-3615

~* .*.

1 . . .*

~ - -.,

. . : ~:. . *.-. .

Hoc!ear Cc.T.mercial

.; r,**:f/esilnghouse -_ Water Reactor ~ations0ivis1on

~. Electric. Corporation Divisions

. _/ \i£{,Jt/ .. i i/ .* *. *. . *

ii *' .* *. * .. ; *<. * *.. **.. * .. *.** *. _* .. ~/~e;;;;.,,,t,an~ .230 .* . *

. -~~-- .

. >':*M~-~ Si-, C~-;Brown, Jr .. , Senior.-Vfce*

'President . *

. >- _- Virglnia.:* El ec:tric and Power Company :* .:- **. * :

_*.

/:..... P.O. Box *26666 *_

Richmond,. . - . 'VA -*. *. 23261 De'ar~*Mr~ Br:o.,.m*-:*-...

_f*il~~{~~t1l~*z* t;f;f;jf* . VI,: ~~t~2~~~;'.r~~~-~ ~Js!~~~OMPAN\.*;, .

.: :,/ >::*_*)t_}):-' :. _.> /'.':-: NUREG-0588 Equipment Qualification

...* -~ .,

1 I. * .*. * '.; *-:_,t-,~:**~*-?..:i-.:.s_-.' .:.~~ *,,~?* '.-_.-. , . ~-- :. *. .* :: ._:; **::' - *._*

1

. i*):;~. Refererice{. NCW-J315 ,::

1-.----~: / .>:::<~t>:C'---:*,t-~:.';>:/*'. ..>,.'_:; :* . . . *1:"**:;**. . . : ,* . . ..* '*. ::':'. / .. \:. . . _:. ' .'

' '. lhis:isto co*nfirm infonnation \'1hich has been provided to Mr.* R. Newcomb.irf .. - * * **

__ Orde:P;;Jo provi_qe: additfona) _infOrJna1:iOrl i_n. reSp~l1Se to J0Ur _reque~t O_f the<,:.'

.

referenced letter as well as other telephone requests by Mr. R. Newcomb~. ---<-, :* *

. . ~~~1~~;f~~f?,. na.~~~.~~~~~ t~;.~~~-***.* .\. 'i* ,,~, ** *. , ,,

~:sti ....

Tablet:h]dent1fJes a lutiricant for\'.'which_ radiat.io~ exposure\te.stin~f is:*avail able)_(('~~:::<.:* -

                                                                                                                                                                              *:-;cc) *F ,. ****.*.*; . .' P              >./ ...*                -< ,;...** .* *.

<* <.',.* Chevto_n* SRl::.2,.g"fease:_;s:**r~_c_o~el'}ded... ,fgr_ u_s~:' *wttfi tpe __ we*s_fingh6ust*s"uppl i~d,.y~:~}'. ,... *

   .* : .*:_ -.. LHsr* *purrip)no.tpr.s**~*.-. _Per* _oufJ~l eph,o*n.e::_coriversa_tfor('wi th. Mr_: R. Newcomb~~ Ve pee({~*-}::-*_,\
   .; . * . *-***t~;h                    1    f~t1;~}!~W~;~:}t~~~t11~:i1tf1~1I*: t;:t.~~~*~t~:*. :r.;:h)s;g;,tr.':~**~i:a* h*_

. * . .,. The l*!esfirigho"t.1s*e stipplied.:_Cha'rgiri*g __ Pump*motors.*are*c:apable *of*~1ithsta~1ding the.-'.*.-: * .. 1

:/*.<: :*:* :~e_@p_eratut~~-t_;-~:e_ *pfofJJ~_;Jr._~*A:~rqi!J~d.,by**_tffe'~r_tjferfnc~{ 1~!'fert:i:.r11e','*r~duction}_.,. *- ..- *_ -.,-;.--:*-*

_;, _--.>*,on qua]1.f1.ed J1Je_:du~... to._operat1J:~9;thrpugh the t,r.ans_1ent.,1s about.one month<-. , -.- . * *

   *** --~-- The bearfrigs~*'"'oflhe *noff~~opefa~;i'1g:cra'rging* pump*s. can al_so* withstand_the _referenced.*.: .

trans {ent*~:( The: bearirig~tof the. operating charging p~mp-wi 11_ *experience an oper-

                     .. ating temperattJre in' excess of. the' allowable* and' thus cannot be 'assumed, based ..

upon ti.J.r'_rentiy:a~ailable\i_nformatibn_to :withttanq the transient~_ We are reviewing, with our*motor ma*nufacturirig division~ *means* for reducing the conservatism in the allowable operatirig temperatiire.- * - r * . .

            **                                         \-

_) 1 'I *

   , .                                                                 . _____ *_ .. --- --2-- - ____ **-----*--*- - -_. -- . *__ .. - ***----- --~- -* -_-------.--

Seal- \.later Cooling Pumps *_ /- :. Information wasrequested,relative to the capability of t_~e Hestinghotise*suppl_ied. charging pumps to operate without sea 1

water coo 1i ng due to failure *at the sea 1
water cooling pumps*. With_the pumped fluid temperature less tha*n1lS~F, oper--

ation \*tithout seal water cooling is acceptable. __ Since your pumped fluid tcm-

                 - perature exceeds 170°F, \'re are investigating the* resultant failure mecliani sm at R. Newcomb' s request.

Surry Pump Motor Insulation
The* ~otor* insul_~tfo-n for the charging* pumps at su/ry~ _l1otor Shop* Order- Nu~ber*:- :*

68fl 3318 _; s therjncfe 1a~tic_- e*poxy:* wound ang thetefore: ii~co~vereci by lfc:Af~a7s'.f/;-?> Section 5-2~ The <s~fety injection pi.Imp motors* appear to have been ie\*iound and*::*

   . -  .\_           thus_ cannot be confirmed ~o -.be covered by WC~~-~:8.l54. * - * :_-__ ~ _                                                                                               *- *
                                              .,-,..      .*'.' .;,:;.                 ....... , .... *                                                                                           *..i, __ *-  .

Auxiliary Oii Pump Motor> -. _, * - * -- ., . __ , __ , _ The Auxili~-ry Oil Pump Motor is:not required.for ClasslE operationof_the*Charging Pu~ps~ -. : * * ** * * **

hould y~u have any que.stions- on this matter*, please call *.

          .. *-. ~-    .. .,.
              <--~~;-:, H.    -

R*

              *-:;-.. :f-:-.-  . -

R. B*-

                                                                                                                           .. :   .~* -:*: : ': -

 , . .**I'*   **                                                                                                                                                                                                                                             I
 ,                                                                                 l..J.

I

     ~
                                                                                                                                                                                                      - ------ ---------------------------------------[--**
                                                                                                                                --**r--A--s***L*-E- ,---------------
                                                                                                                                                                                                                                  . .                        i

_- ------*---~-------------* -----------* --------**----------*------ . . . -**

I

Premium Grade, Corrosion. and Oxidation Inhib--rfiicf--Mfnerarmr~e--r,µrbine--Oils-;;*-.-*------~--

                                                                                                                                                                                                                               ..-. *. *_. - .- . . *. . ..- t.\
                                ...                                                                                                                                                                                    Radiation                             ...'

Viscosity Exposure limit** Brand Name 200 SUS@100°F 1.4 ~ 107 Rad.*

               . - Exxon Teressti c-46
                                                                                                                                                                                                                                                                  '*II

~*-. *-r'

                                     - :-: . . *-. *:*_ ...  ..__  :. *: . .-._ -:*'.;.'.; ::'.:~-~*-: :.,-:. _;__: ....
                                                                                                                                                           . -:-*:*-*.,~ ._:'. --
                                                                                                                                                                                                                                                              .'. I ...

i

                                                                                                                                                                       '.*   ' ~ .-.... . -.

Reference:

EPRI reportNP-1447 Vol*s-~ 1 &-2*,....Project 893~1-~ J~ly 1980.:-. Tests.

performed by Westinghouse R&D~ **Critical breakdown of oil \*muld be expected * * - .

PY 2 X 1o8Rad. _*. ___ .* *<. *1

                                                                                                                                                                                                                                                                           ; I t

i

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT

  . TER Item No.:    104 TER Category:    IIa

Description:

PRESSURE TRANSMITTER FOR POST ACCIDENT MONITORING (TMI ITEM) Manufacturer, Model: ROSEMOUNT, INC. Model No. 1152AP7A22PB Tag No(s).: PT-LM-lOlA, PT~LM-101B Worksheet No (s).: 10. 3-1,

10 .. 3-2 QDR No.: 5437..;.201-0l Location: AB-13A DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided .

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1
COMPONENT TER Item No.:

TER Category:

Description:

106 IIa LEVEL TRANSMITTER FOR CONTAINMENT SUMP LEVEL (TMI ITEM) Manufacturer, Model: GEMS Models XM54854 & XM54853 Tag No(s).: LT-RS-151A, B Worksheet No(s).: TMI 10.3-30, 10~3-31 QDR No. : future Location: RC-3A DISCREPANCY This is a new equipment item for TMI purposes .

RESPONSE

                                                                    'i Qualification testing was recently completed .. for this      j i tern, but the qualification test report is hot. yet:    :.availabl'.e.

We continue to believe that the equipment is the best I available for the purpose, and have.no knowledge of type test failures that ,;*muld compromise its capability for qualification .

30 DAY RESPONSE TO SER & TER ELECTRICAL.EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

107 IIa LEVEL TRANSMITTER FOR RC SUMP WATER LEVEL (TMI ITEM) Manufacturer, Model: GEMS, Model XM:54854 & XM.54853 Tag No(s) .: LT-DA-llOA, LT-DA-llOB Worksheet No(s).: TMI 10.3-5, 10.3-6 QDR No. : future Location: RE-27B DISCREPANCY This is a new equipment item for TMI purposes.

RESPONSE

I Qualification testing was recently completed for this I item, but the qualification test report is not -yet: :available i We continue to believe that the equipment is the best available for the purpose, a~d h~ve no kn9w+edge of typ~ test.failures

that would compromise its capability for qualif*ication.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

115 IIa LIMIT SWITCHES (TMI ITEM) Manufacturer, Model: GORDOS, Model MR8901 Tag No(s) .: zs-ss-lOOA-1, lOOA-2, ZS-SSlOOB-1, lOOB-2 Worksheet No (s).: 10.. 3-54 thru 10. 3-57 (TMI) QDR No.: 5437- 205-01 Location: RC-27A DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No. : 116 TER Category: IIa

Description:

LIMIT SWITCHES (TMI ITEM)

Manufacturer, Model: GORDOS,: Model MR8901 Tag No(s).: Numerous Worksheet No(s) .: (TMI): numerous QDR No.: 5437..;. 205-01 Location: RC-18B DISCREPANCY Qualification was not established for this item because the review package {QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to* submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 117 TER Category: IIa

Description:

LIMIT SWITCHES (TMI ITEM) Manufacturer, Model: GORDOS, Model MR8901 Tag No(s) .: Numerous Worksheet No(s) .: (TMI) Numerous QDR No.: 5437- 205-01 Location: AB-2B DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev. 4 responses. The QDR establishes qualification, and is being submitted at this time *

TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 1983 MARCH 9, 1983 ATTACHMENT 3 UNIT 1: RESPONSE TO NRC CATEGORY 11.B EQUIPMENT NOT QUALIFIED TER ITEMS 4

18

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1

COMPONENT TER Item No.:

TER Category:

Description:

4 IIb RCS WIDE RANGE PRESSURE TRANSMITTERS (PAM) Manufacturer,.Model: Rosemount 1153D Tag No (s).: PT-1402, PT-R.C-1402-1 Worksheet No(s) .: 6-267, 6-268 QDR No. : future Location: RC-3B DISCREPANCY This is PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. The TER classified the equipment in Category IIb, Equipment Not Qualified .

RESPONSE

Qualified replacement instrumentation is being installed during the current refueling outage, as stated in VEPCO letters to the NRC serial number 085 dated February 18, 1983,

     , 085A dated March 2, 1983 and 085C dated March 9,1983 .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 18 TER Category: IIb

Description:

SG WIDE RANGE LEVEL TRANSMITTERS (PAM)

Manufacturer, Model: Rosemount Tag No(s) .: LT-1477, 1487, and 1497 Worksheet No(s) .:* 6-269, 6-270, 6-271 QDR No.: 5437...;,

Location: RC-3B DISCREPANCY This is *PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. The TER classified the equipment in Category IIb, Equipment Not Qualified.

RESPONSE

Justification for Continued Operation is provided .in VEPCO letter to the NRC serial number 085 dated February 18, 1983.

TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 1983 MARCH 9, 1983 ATTACHMENT 4 UNIT 2: RESPONSE TO NRC CATEGORY I.B EQUIPMENT QUALIFICATION PENDING MODIFICATION

                                        . TER ITEMS 78 81 86 88 90

- 96 104 121 122 123 Except for those items addressed in this attachment, the replacement commitment and Justification for Continued Operation provided in Sections 7.1 and 7.2 of the 90-day Response Rev. 4 remain valid. This attachment addresses all changes that resulted from a complete review and updating of replacement plans.

With respect to the terminal blocks listed in Section 7.1.11 of the 90-day Response, all terminal blocks in safety related circuits inside containment have been replaced with qualified Raychem splices as stated in Section 7.1.11.1. We have completed review of terminal blocks outside containment and have scheduled replacement of all unqualified blocks in safety related circuits with qualified blocks.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.: 78 TER Categ_ory: Ib

Description:

SOV FOR SG BLOWDOWN ISOLATION Manufacturer, Model: ASCO 8320173E Tag No(s) .: SOV-BD-200A,C Worksheet No(s) .: 6-260 QDR No.: 5437-64-01 Location: RC-3B DISCREPANCY The 90-day response did not provide justification*for _continued operation for these valves.

RESPONSE

SOV~BD-200A: The worksheet states the valve will be replaced by a qualified NP series valve, although the con-clusions section did not list it. Justification of continued operation for this type was provided in Section _7. 2. 2 of the. 90-day Response, _an.9- replacemen.t i-s still :scheduled. _... * . _

   -     SOV-BD-200C was replaced in May, 1982 with a qualified NP-'

series replacement as discussed in the referenced QDR. Other valves of this series were assigned to Category Ile in the TER

30 DAY RESPONSE TO SER &'TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 81 TER Category: Ib

Description:

SOV FOR SG BLOWDOWN ISOLATION Manufacturer, Model! ASCO 8320A173V Tag No(s) .: SOV-BD-200E Worksheet No(s).: 6-264 QDR No.: 5437-64-01 Location: RC-3B DISCREPANCY The 90-day response did not provide justific~tion for continued operation *

RESPONSE

The worksheet states the valve will be replaced with a qualified NP-series valve, although the conclusions section did not list it. Justification for continued operation for this type was provided in Section 7.2.2 of the 90-day Response and replacement is scheduled. . . .

30 DAY RESPO~SE TO SER & ~ER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No. : 86* (partial) TER Category: Ib

Description:

- SOV FOR SAFETY INJECTION NITROGEN RELEASE Manufacturer,_ Model: ASCO Tag No(s) .:sov-sI~201A Worksheet No(s) .:    6-122 QDR No.: 5437-64-01 Location:

DISCREPANCY The 90-day response did not provide justification for continued operation for this tag number SOV.

RESPONSE The conclusions section of the 90-day response incorrectly listed SOV-SI-202A instead of 201A. Justification for contin-

 .ued operation was provided in Section 7.2.2 of the 90-day Response, and replacement is scheduled.

30 DAY RESPONSE TO SER &'TER . ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER C~tegory:

Description:

88 (partial) Ib SOVs FOR SI BORON INJECTION TANK RECIRCULATION Manufacturer, Model: ASCO LB831654 Tag No(s) .: SOV-2884A and B Worksheet No (s).: 6-228 and 229 QDR No.: 5437- 64-01 Location: AB-2B DISCREPANCY The 90-day response did not provide justification for continued operation for these two SOVs.

RESPONSE

The worksheets state the valve will be.replaced with a qualified NP-series valve, although the conclusions section did not list it. Justification for continued operation for this type was provided in Section 7.2.2 of the 90-day Response,

 ~nd replacement is scheduled .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT

     .TER Item No.:      90 TER Ca teg_ory:   Ib

Description:

SOVs FOR PRESSURIZER RELIEF VALVE ACTUATION Manufacturer,* Model: Laurence *33QQWA742DC Tag No(s) .: S0V-2455C-3, SOV-2456-3 Worksheet No(s) .: 6-200e and h QDR No.: None

Location: RC-47A DISCREPANCY The 90-day response did not provide justification for continued operation for Laurence SOVs.

RESPONSE

Both SOVs were replaced in November 1981 with qualified:

 ,NP-series replacements as discussed in the referenced QDR.

Other valves of this series w~re assigned to Categ6ry Ile in the TER

30 DAY RESPONSE TO SER&' TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 96 TER Category: Ib

Description:

SOV FOR PRIViARY WATER TO PRESSURIZER RELIEF TANK Manufacturer, Model: ASCO 8320A174E Tag No(s) .: S0V-2519A Worksheet No(s) .: 6-200 QDR No.: 5437-64-01 Location: AB-2B DISCREPANCY The 90-day response did not provide justification for continued operation.

RESPONSE

The worksheet states the valve will be replaced with a qualified NP-series valve, although the conclusions section did not list it. Justification for continued operation for this type wa~ provided in Section 7.2.2 of the 90-day Resporise, and replacement is scheduled

30 DAY RESPONSE TO SER & TER

      . ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.~ 104 TER Category: Ib

Description:

sov FOR eves ISOLATION Manufacturer I Model: ASCO 8316.54 Tag No(s) .: SOV-2204 Worksheet No(s) .: 6-19 QDR No.: 5437-64-01 Location: AB-2B DISCREPANCY The 90-day response did not provide justification for continued operation. RESPONSE. The *worksheet states the valve will be replaced with a qualified NP-series valve, although the conclusions section

*did not list it. Justification for continued operation for this type was provided in Section 7.2.2 of the 90-day Response, and replacement is scheduled.

30 DAY RESPONSE TO SER &'TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 121 TER Category: Ib

Description:

ACCELEROMETER FOR ACCIDENT MITIGATION (TMI ITEM) Manufacturer, Model: ENDEVCO, Model 2273AM20 Tag No(s) .:* NUMEROUS Worksheet No(s) .: TMI 10.3-9 thru 10.3-18 QDR No.: future Location: RC-47A DISCREPANCY This is a new equipment item for TMI purposes. Qualification testing has not been completed.

RESPONSE

_ The qualification test report for this equipment is not yet available.

We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise
its capability for qualification.

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 122 TER Category: Ib

Description:

HARDLINE COAXIAL CABLE FOR ACCIDENT MITIGATION (TMI ITEM) Manufacturer, Model: ENDEVCO, Model 3075M6 Tag No(s) .: Coaxial Cable Worksheet No(s).: TMI 10.3-19 QDR No.: future Location: RC-47A DISCREPANCY This is a new equipment item for TMI purposes. Qualification testing has not been completed.

RESPONSE

The *qualification test report for this equipment is not yet available.* We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would co~promise its capability for qualification .

30 DAY RESPONSE TO SER&' TER ELECTRICAL EQUIPMENT ENVIRONV£NTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 123 TER Category: Ib

Description:

CHARGE PREAMPLIFIER FOR ACCIDENT MITIGATION (TMI ITEM) Manufacturer 1 Model: UNHOLTZ-DICKIE Model 22CA-2TR Tag No (s) .. : *.NUMEROUS Worksheet No(s).: TMI 10.3-20 thru 10.3-29 QDR No.: future Location: RC-47A DISCREPANCY This is a new equipment item for TMI purposes. Qualification testing has not been completed .

RESPONSE

The qualification test report for this equipment is not yet available. We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise

  ~ts capability for qualification .

TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2 30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 19.83 MARCH 9, 1983 ATTACHMENT5 .

UNIT-2: RESPONSE TO NRC CATEGORY IloA EQUIPMENT QUALIFICATION NOT ESTABLISHED TER ITEMS 1 44 7 46 8 50 9 51 10 62 12 63 13 72 17 73 26 116 30 118 34 119 35 127 39 128 41 129

3*0 DAY RESPONSE TO SER ,& TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category:

Description:

1 IIa PRESSURE TRANSMITTER FOR R.S. PUMP DISCHARGE (PAM) Manufacturer, Model: FISHER PORTER, Model 50EP1031BCXA Tag No(s).: PT-RS-256A, PT-RS-256B Worksheet No(s).: 6-278, 6-279 QDR No. : None Location: SFGD-1 DISCREPANCY This is PAM equipment which was under review at the time of the. 90-day Rev. 4 submittal. Qualification was not established.

RESPONSE

This equipment will be replaced by qualified equipment within the schedule established in 10CFRS0.49. In the interim, due to equipment type similarity, justification for continued operation is provided in the 90-day response section 7.2.4 for this equipment type. The TER classifies other equiI?ment of this sort in Category Ib, Equipment Qualification Pending Modification

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2
COMPONENT TER Item No.:

TER Category:

Description:

7 IIa ELECTRICAL PENETRATION Manufacturer, Model: Amphenol Type III, Spec. NUS-41 Tag No ( s) .. : Worksheet No(s) .:

6-46 QDR No.: 5437-127-01 Location: RC-18B

 *DISCREPANCY The TER identifies. concerns in the following areas:

A. Similarity between equipment and test specimens B. Aging and qualified life C. Temperature/pressure test profile D. Spray E. Radiation

  *RESPONSE The attached pages ~iscriss ihe~~ conc~ins in.detail.

It is concluded that all.of these concerns are resolved except Aging and Qualified Life. As recommended in the QDR, the penetrations should be included in a surveillance* program. The TER assigns other equipment of this sort to Category IIc .

ATTACHMENT TO SURRY 1 ITEM 7 AMPHENOL PENETRATIONS A. CONCERN: (1) Similarity Between Equipment and Test Specimens

  ----------*----**--   -*-* --(pa*ge* of--TER)-------~------*-  ------------ ------------**-------- - *---------- -----------. **------

(2) It is not clear why the manufacturer was not contacted to determine the applicability of the test reports. It is noted that Amphenol has provided test documentation to other plants, i.e., Calvert Cliffs, Trojan, San Onofre, Davis Besse and ANO (page Sf of TER) RESOLUTION: The Amphenol penetrations used at Surry are of the canister type, rather than the unitized header design supplied for later plants such as Davis Besse and AN0-2. Copies of ten references are attached documenting con-tacts with Amphenol to obtain copies of suitable test reports for the canister design (which they could not prcvi de..) or for the uni ti zed header design (which were ultimately obtained directly from Toledo Edison and Arkansas Power & Light). Additionally, the referenced QDR contains substan-tial documentation relating the canister and unitized header designs. In particular, the "Design Evolution" report included with the original Amphenol proposal in Section 2b of the QDR provides a detailed description of Amphenol's penetration design evolution from canister to unitized header. The photographs and drawings in this report, together with the drawings in the Proposal~ clearly establish that at the time Surry penetrations were fabricated the two designs employed the the same connector modules, insulation materials, potting compounds, and sealants; only the structural metallic components in which these items are mounted and related welds differ. Amphenol's Design Verification Test Report, included in Section 3d of the QDR, summarizes the reasons for evolving from the canister to the unitized header design (page 1): "The unitized header assembly (UHA) offers the advantages of a lighter, more compact unit than the canisters which have been used heretofore and also pro-vides for versatility and interchangeability of compon-ents. In addition, the UHA promises to considerably reduce the required field installation effort." Sheet 10 of the QDR, reproduced on page Sf of the TER, documents additional comparisons performed by NUS to.verify the similarity between Surry equipment and the test specimens used for the test reports empl9yed by the QDR .

t:.., ___

Summarizing, the manufacturer was contacted repeat-edly to obtain applicable test reports. In the absence of complete test reports for the canister design used at

          -*-*-----*-*--Surry;- d-es-i-grc similarity to the tested unitized header**

penetrations was established using information pro-vided by the manufacturer. Test reports for the unitized header penetrations were obtained and used to establish the qualification of the Surry penetrations. This effort adequately determines similarity between the plant eguip-- ment and test specimens in conformance to the DOR Guide-lines.

B. CONCERN: (1) Aging Degradation Evaluation (page 2 of TER)

(2) Qualified Life or Replacement Schedule Established (page 2 of TER) * (3) No aging evaluation has been conducted (page Sh of TER) RESOLUTION: Sheet 11 of the QDR, reproduced on page Si of the TER, summarizes the thermal cycle test in Amphenol report_ 123-1275 but does not provide an Arrhenius calculation to. predict a qualified life. Clearly such a calculation would predict a very long life: for example, using the conservative activation energy of 0.7 ev developed on sheet 13 of the QDR, the one hour of thermal testing at 400°F corresponds to over 1,000 years at the compartment ambient of 105°F. The QDR concluded that the evidence is not sufficient to justify a 40 year qualified life, and an Ongoing Aging Surveillance Program should be performed. This_ deficiency by itself would not cause the penetrations to be classi-fied in TER category IIa. category IIc, "Qualified Life Deficiency," would be appropriate .

C. CONCERN: (1) Temperature/Pressure Test Duration (TER page 2) (2) Temperature/Pressure Required Profile Enveloped

         --------- ___________ by Test Prof.ile. _(TER.page_ 2.) ____ _____________________________ _

(3) Note 5 states that two referenced tests envelop_ neither the peak temperature nor entire dura-tion, while a third referenced test which ex-ceeds the peak temperature does not have ade-quate duration. (TER page Sj; test and plant~

profiles reproduced on pages Sk through Sn).

RESOLUTION: This concern primarily reflects the fact that in 1972 the industry did not conduct 120-day LOCA tests; secondarily, the pea~ temperature in the Davis Besse LOCA test (the most closely related test to Surry LOCA conditions) is slightly lower than for Surry. This con-cern is not considered significant for the reasons that follow. The Surry peak LOCA temperature for the penetrations is 280°F for 30 minutes. It decays to 150°F in the next 30 minutes, then to 120°F by the ~nd of two days and remains at 120°F for the balance of the 120 day post-LOCA required operating period. Attachment No. 2 of the QDR presents a series of Arrhenius calculations to show that the Davis Besse LOCA test is more severe than the Surry LOCA. This is shown by converting both profiles to equivalent time at 120°F, using a conservative actiation energy of 0.7 ev. The calculations show that the Davis Besse test corresponds to an additional two month~ of post-LOCA operation at Surry after the required 120 day operating time. The two LOCA profiles, shown in Figure 13 of the QDR, do not differ significantly, and this approach is not considered to represent an abusive use of the Arrhenius technique. Since the Davis Besse test did not bound the Surry peak temperature, the QDR also referred to Amphenol's "Maximum Credible Accident" test. In this test the penetrations experienced 300°F for 15 minutes dropping to 250°F for the balance of 24 hours. The thermal aging test discussed under the aging concern exposed the pene-trations to seven hours at or above 300°F; this test was performed in dry air rather than steam. These two tests provide substantial evidence that threshold effects or other adverse behavior will not occur in the small portion of the Surry LOCA peak not enveloped by the Davis Besse test .

With respect to the concern that Arrhenius calcu-

lations should not be used to extrapolate high-tempera-ture, saturated steam exposure to low temperature, oxygen-rich operation,_ two points are noted: Fir.st, __ in Attachment_________
No. 2 of the QDR it is evident th~t most of the "credit" for post-LOCA operating time derives from testing at or below 180°F, which does not reflect a steam environment.

Second, the aging just:ifies many years operation at am-bient temperature, based on the oxygen-rich thermal aging test. It is noted that the QDR contains.an *error in pre-senting LOCA test results.* For the Davis Besse test both temperatyre and duration values used are incorrect because the test procedure rather than the test report was used. The TER presents correct conditions. In spite of the error the results of the calculation in Attachment No. 2 of the QDR remain valid (lower temperature and longer time tend to offset), but the QDR will be corrected. Summarizing, the justification for LOCA qualifica-tion of the penetrations is considered valid. D. CONCERN: (1) Spray (page 2 of TER) (2) "Boric acid was mixed and boiled to make steam. No spray was used." (page Sj of TER) RESOLUTION: The direct impingement forces of droplets from con-tainment spray nozzles become insignificant relative to LOCA pressures beyond one or two feet from the nozzle. The Surry penetrations are located no closer than several feet from spray nozzles. Thus the spray test is con-sidered to have adequately simulated the Surry LOCA en-vironment even though the solution was not directly sprayed through a nozzle into the test chamber. E. CONCERN: (1) Radiation (TER page 2) (2) Note 4 challenges the qualified radiation dose of l.03xlo8 rads claimed in the QDR (TER page Si)

RESPONSE

The TER presents (on page Sh) documentation from the Hanford laboratory showing that, although portions of the test container received l.03xlo8 R, other portions received as little as 1.22xl0 7 R. The TER further pre-sents on page Sh a caution that radiation exposure was quoted in Roentgens and would have to be converted to rads to reflect absorbed dose. The required radiation dose for the Surry penetrations

is 7.44xlo6 rads (40 years plus LOCA). The conversion from Roentgens to rads for the organic materials of con-cern is unlikely to vary from 1.0 by more than ten to twenty percent, so the qualified dose is at least lxlo7 rads. This exceeds the plant environment.

April 12, 1971 Stone G Kcbstcr TELECOPIED - 225 Franklin Strc~t Boston, Mnss~chusetts 02107

                                                                                              ~    ,j,tl.3-/;> -

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         ,\ t tent i on :     A. W. Goldoan> Consultant                                                                                 {       f Electrical Division f:

I Subject'-: Qual i ficai ton Tc.st of Connector in T}'pe 1A, I IA t 1:

I & III Penetration Assenhlies f

Reference:

Your Ti'i'X of 4-S-71

Gcntlcncn: . ':! I '* I ,

        *1n an.fur to Stone & h"c9stcr's question, t.ht conne:tors provided h .i*ve ::o t b!2!eli qt1-1 l if i c~1 ti on t.es tt:!tl. How eyer, the design of these connector~ b:;* h.-i.~ed. upo*n the requircncnts of ~ilitary ~pei:;:.ifics.tion No. MIL-C-5015 Khicl1 include~ environmental testing. Connector de,ign is such that_at l!ast one and in sane cases, t~o silastic conponcnt.s arc pro\' l.dcd in the connec t,)r to f ted th ru 1 nter face.

Th-is type of int (:r faxe has beo1z'. prov~n acleq1.13 te to nect the env-i T* on-mental rcquirecent.s/of Mil>-C-5015, Alfio,. additional capc?biiity. to ,d thstand clc\*a.tod tcopcraturcs

is providl*d in the silicone nstcrisl usod for the scaling ncmbcrs.

A copy of MTL*C*5hI5 is sttached for your r~vicw. Obviously, the tests outlined in the spec arc not ba5t.~d on t.h~ 11 ,.lccitlent" condition in question, but I think a useful conparison can be cadc. Shoul~! )'Oti require v'erific.1ti1..)n te.st.inP._.1' it csn be pcrforr.1etl at a~ditional cost. . \

,.,      Sincerely,           * . }'/"'*:
    ~!/tit~~ .* .ltli .~
     . Harry-**-' .t Plock
                                            .J Sales,~ rrespondcnt i ;I HJJi~*fp cc:      E. Stadlei' I\'. SulliY~n D. Slire:nson R. Purinton K. Rabe

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H~GINEERING DIVISION

                                                                                                                                                                        -.,-,,*       ...     '\.--

AP K 23 1981

                                  -* ***--***-*-  **- -** **--*-    -- ~----- ..-------------              -*- -------------       ---* ---------------- --**

TELECON NOTE NO.------r-- - -

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Avril 24; .1.981-

5437-4.lol.

ENG)NEERH*:G DIVISION Equipment Qualific~tio~ APR ~7 tSSl No.------

   ~~?henol Sams-B~nker Ramos Cor?oration 9201 Independent hvenue Chatsworth, California 91311

Subject:

Penetration Qualification ~ocume~tation Gentlemen: Confirming our telecon of April 24, 1921, please send me a complete set of qualification docUI'.lentation for Nuclear Applications on ?ower, Thermocou?les, Instruments and Tri-axial Penetrations. Tha~k you for yo~r kind assistance. Very tr~ly yours, () x1 !l_ , j Ii ., 0 << __,. i

                                        ,   Ill   ~ -                V J. R. Solano Staff :i::ngineer
                     /

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TELECO;J -l~OTE ~--- Date: 5/.::; /? 1 Time: _ _ _ _ __ File: 5 !; 3 7 - -:-:t--O--*

               -- - - -ffen'.:;*e-en:. -----R~---~-J;*

Crowe 11:--:.: ---of:* ---- __ D
___ G_._ Q_'__ br_i_~n And: J .- Solano (;, L, (NUS)

DISCUSSION: I told 1*1r. Crowell that the re;:_)or.t #C19QA061 on P..mphenol penetration does not include the test on Rad. and chemical spray exposures. He told me that this renort was pre?ared a long time ago and at that time they did not have the facility to do rad. and spray test. He will find out if some tests were conducted on radiation and spray tests and will call me back. cc: Kick Garg . S. Kasturi

7!*.

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ACTION ITEMS:

6)tHs AMPHENOL NORTH AMERICA B,._;r,l(er ~a~ C.:...-:r['rJ'211CY.". 92:'~ ;~oe:-e:,Oe!'"'ICE- !..\,E

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------ - - ---*---- - ...:....*:.. * !*~ay .2.9., -19.S 1-___ -- -*-- ----____ ~-- ________________________ *-*- __________________ _ BJ fa.: 5: l: 049

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NUS Corpo1*a ti on 4 Research Place' Rockville, MD 20850 Attention: J. R. Solano, Staff Engineer R~ference: Your request for Qualification~oc~m~ntation for Uuclear ,E..pp1ications on Pov,er, 1he~2c:iup';es, InstrLlments and Triaxial Pe~etr~:ions. Technical Reports 123-2045, 123-1268 and 123:-1269 3\..:f\lKE~ R~~:J

Dear Mr. Sol ano:

Because the referenced reports were prepared for Toledo Edison and A:--kansas Pm*:er 3.nd Light Company, it is necessary for you to obtain tne1r permission prior to our re;easing the reports. ;he cbculiients are available and will be sent to you after tpproval has been received .

As pr~viously quoted to you, our minimu~ or~er value is $250.00.

Upon receipt of the releases from the Utilities and your P.O. for

                                          $2?0.00, the reports will sent irmiediately.

Thank you for your interest in 8;Jr,ker P.3.rJO. \~e look forward to hearihg from you. Sin~erely, BUNKER RAMO CORPORATION A"'ilphenol tlorth JlJ'ilerica Division SAMS Operation

                                            ~ ~,.~_,-,-,l

(,*irS.) Jo Amstrong Nuclear Product Manager BJ.;: b1n

30 DAY RESPONSE TO SER&' TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 8 TER Category: IIa

Description:

ELECTRICAL PENETRATION Manufacturer,* Model: Amphenol Type IC, Spec. NUS-41 Tag No(s) .: Worksheet No(s) .: 6-45 QDR No.: 5437-127-01 Location: RC-18B DISCREPANCY (Refer to Surry 2 Item 7)

RESPONSE

(Refer to Surry 2.Item 7)

30 DAY RESPONSE TO SER & .TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION
- COMPONENT TER Item No.:

TER Categ.ory: 9 IIa SURRY 2

Description:

ELECTRICAL PENETRATION Manufacturer,* Model: Amphenol Type IB, Spec. NUS-41 Tag No(s).: Worksheet No(s) .: 6-44 QDR No.: 5437-1°27-01 Location: RC-18B DISCREPANCY (Refer to Surry 2: Item 7) :

RESPONSE

(Refer to Surry 2' Item 7)

30 DAY RESPONSE TO SER~ TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 10 TER Category: IIa

Description:

ELECTRICAL PENETRATION Manufacturer; Model: Amphenol Type IA, Spec. NUS-41 Tag No(s).: Worksheet No(s) .: 6-43 QDR No.: 5437-127-01 Location: RC-18B DISCREPANCY (Refer to Surry 2,Item 7)

RESPONSE

(Refer to Surry 2' Item 1-r-:

.. ..~..... --***** 30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category:

Description:

12 IIa FLOW TRANSMITTER FOR COLD LEG SI (PAM) Manufacturer,*Model: BARTON,Model 386 Tag ~o(s) .: FT-2961, FT-2962, iT-2963 Worksheet No(s).: 6-280, 6..:..281, 6-282 QDR No.: None tocation: RC-27B DISCREPANCY. This is PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. Qualification was not estab-lished .

RESPONSE

This equipment will be replaced by qualif~ed equipment

                   * . within th~ schedule established in_ 10CFRSO ~ 49. In t.h~.

interim, due to equipment type similarity, justification for continued operation is provided in the 90~day response section 7.2.5 for this equipment type. The TER classlfies other equipment *of this*_typ~_.* in Category Ib, Equipment* Qualification Pending Modification .

__ j

30 DAY RESPONSE TO SER&' TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.: 13 TER Category: IIa

Description:

FLOW TRANSMITTER FOR LOW HEAD INJECTION HEAD (PAM) Manufacturer,* Model: ROSEMOUNT, Model 1152DP5 Tag No(s) .: FT-2945, 2946 Worksheet No(s) .: 6-283, 6-284 QDR No.: 5437-241-01 Location: SFGD-1 DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent

 .to submittal of the SER and 90-day Revr 4 responses. The QDR establishes qualification, and is being submitted at this time .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 17 TER Category: IIa

Description:

LEVEL TRANSMITTER FOR CONTAINMENT_ SUMP (TMI ITEM) . Manufacturer, Model: GEMS Model XM54853/XM54854 Tag No(s) .: LT-RS-251A, B Worksheet No(s) .: 6-271, 6-2Ji QDR No.: future

Location: RC-27B DISCREPAI~CY This is a new equipment item for TMI purposes.

Qualification testing has not been completed.

RESPONSE

This equipment item duplicates item 118; 90-day worksheets

 .6-271 and 6-272 cover the same equipment as TMI worksheets 10.3-30 and 10.3-31, respectively .

30 DAY RESPONSE TO SER&' TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 26 TER Category: Ila

Description:

DAMPERS FOR HVAC/AUXILIARY BUILDING VENTILATION Manufacturer, Model: RCS, Inc. Type BL TagNo(s).: 3A(2), 3B(2) Worksheet No(s) .: 6-112~ 113 QDR No.: 5437-80-01 Location: AB-45 DISCREPANCY Licensee deleted equipment from Master List, but provided no reason and no qualification documentation.

RESPONSE

Surry 1 worksheet 6-llO(attached) provided the reason

 .for deleting the corresponding Unit 1 dampers; namely, that the HELB for which damper operation is required does not affect the damper environment.

The Surry 2 worksheets are labeled "Deleted - see conclusion section," which does not provide a reason.

However, the Surry 2 dampers are not exposed to a harsh environment and should be deleted from the Master List. This equipment should be classified in Category IIIb, "Equipment Not in the Scope of the Qualification Review."

Unit: feel Uty: VEPCO, SURRY Docket: 2 51.:.2a1 SYSTEM COMPONENT EVALUATION WORKSIIEET - 90 DAY REVIEW Environment; Documentation Reference Out-

                                                                                                                                           * . )'

SYSTEM: 11tonding HVAC/ AUXILIARY BUILDING Items VENTILATION Unit11 s2ecificetion Quellficetion S2ecificetion Quelif, ~ 120 day:, 365 day:, Westin~house 91 Vendor None EQUIPMENT DESCRIPTION OPER, Analy:ib TIME Ref. L r. No. NS-SS-79287 & Proto-PLANT ID NO. type Test 1-VS-f-58A 205, 0-30 :,ec 122 S&W Cale. 91 Vendor None TEMP 128116, IJII- Analysl11 COHPOIIENT: f 205-120, 30 seo-1 hr (See Note 2) PE-050-0 & Proto-Central Exhaust type Test fan Hotor MANUFACTURER: S&\I Calo. 91 Vendor None Siemens-Alll11 Inc. PRESS, 15.2, 0-1 min 111,7 p:,111 11J. 9, 1-60 min 128116 .1111- J\nelysl11 p11ia & Proto-PE-0116-0 type Test HODEL NUMBER: Freme No. r1111JTS Cla11s f - Insulation

                                                               ~~,~

S&W Cele. 91 Vendor None REL. 100 Analysi:, HUH. J 128116.1111-PE-0116-0 & Proto-FUNCTION: type Te11t NR NR NR None CHEM. NR SPRAY ACCURACY: Spec: Demo: IIR S&W Calo. 91 Vendor None RAD. LOCA = 2.7 x 10E5 2 X 10E8 II LOCATION: AB-'15 110 yr= 1.1 x 10E5 128116.1111-UR(B)-0113-0 Analysi:,

                                                                                                                      & Proto-type Test Auxiliary Building Ventilation I     SERVICE:

Auxiliary Building AGING IJO Yrs IJO Yrs (Note 1) VEPCO Spec, IIUS-9060 91 Vendor Analy11l11

                                                                                                                       & Proto-None I       Control Area Exhau11t Fan                                                                                      type Test
!. FLOOD LEVEL ELEV: NR             SUB. NR                     NR                 NR                   NR        NR          None t    ABOVE FLOOD LEVEL: Yell No NR = Not required. All number:, written in Documentation Reference Qualification column are identified in Section 8.

NOTES: 1) In Vendor's An'llysl11 report the theoretically qualified life 111 113 yrs. which i:, much higher than IIQ yrs. Vendor ls contacted to provide their backup celculatloris end assumption:, for 113 yr:,. life.

2) Ba11ed on a review of the postulated HELBs, it was determined that safety-related equipment required to mitigate the IIELB and bring the plant to a safe shutdown ls not affec'ted by the break. However, this equipment is bei.ng reviewed against the effects of an HELB to determine our ability to maintain minimum boratlon capability, to assure oddltlonnl plant operations capability.

DELETED - See conclusion :section. 1-VS-F-5RA Delete<! Rev.II 6-110

30 DAY RESPONSE TO SER & "TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.: 30 TER Category: Ila

Description:

ELECTRICAL PENETRATION (THERMOCOUPLES) Manufacturer, Model: Amphenol Type IV Tag No(s) .: Worksheet No(s) .: 6-47 QDR No.: 5437-127-01 Location: RC-18B DISCREPANCY The worksheet identified this item as "Thermocouples", and in the Surry 2 TER it was addressed as "Thermocouple Cable." In fact the equipment is containment penetrations for thermocouples (see Surry 1 item 10). Qualification was not established. *

RESPONSE

(Refer to Surry 2 .'*. Item 7 )

- - .::-..!,-**. 30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 34 TER Category: IIa

Description:

SKV COLLYER CROSS LINKED POLYETHYLENE INSULATED CABLE

M~nufacturer,*Model: Collyer Insulated Wire Co.

Tag No(s) .: Spec. No. NUS-364, *sN-1250 Worksheet No(s).: 6-60a QbR No.: 5437-132-01 Location: AB-27 DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification. regardin~:

1) cable construdtion methods* (chemically :cross link~d

               .or irradiationally cross linked) u~ed and 2) applicability of the test reports to the subject cables .

RESPONSE

The review of the plant records reveals that the Collyer cables are not used for any safety~related' equipment which is located in harsh environment.

This equipment should be classified in Category IIIa "Equipment Exempt from Qualification",

30 DAY RESPONSE TO SER &'TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.: 35 TER Category: Ila

Description:

HIGH TEMPERATURE CABLE Manufacturer, Model: CONTINENTAL WIRE & CABLE, CROSS-LINKED POLYETHYLENE Tag No(s) .: NUS-326 Worksheet No(s).: 6-60 QDR No.: 5437-131-0l Location: RC-3A DISCREPANCY Qualification was not established for this item because

 .the review package (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent

 .to submittal of the SER and 90-day Rev. 4 responseso The QDR establishes qualification, and is being submitted at this time.

30 DAY RESPONSE TO SER & TER

    .ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: . 39 TER Category:    IIa

Description:

600 VOLT, COLLYER CROSS LINKED POLYETHYLENE . INSULATED CABLE Manufacturer,*Model: Collyer Insulated Wire Co. Tag No(s) .: Spec. No. NUS-3~5E, SN-457 Worksheet No ( s) . : 6:-54 QDR No.: 5437-135-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish.the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross linked) used and *2) applicability .

of the test reports to the subject cables.

RESPONSE

Per Collyer correspondence letter dated Sept. 10; 1971 {included in the referenced QDR page 2a, in the end) the Purchase Order No. SN-457: (Spec. NUS-365E) was cancelled in its entirety. Also the review of the plant records reveals that the Collyer, XLPE cables are not used for any safety~related equipment which is located in the*harsh environment and listed ori the Master List. This equipment should be classified in Category _IIIa "Equipment* Exempt from Qualification~'

30 DAY RESPONSE TO SER & 'TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.: 41 TER Category: Ila

Description:

1000 VOLT CONTINENTAL CROSS LINKED POLYETHYLENE INSULATED CABLE Manufacturer, Model: Continental Wire & Cable Tag No(s) .: Spec. No. NUS-420, SN-1463 Worksheet No(s) .: 6-42 QDR No.: 5437-130-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-bility of the test reports to the subject cables.

RESPONSE

Cont1nental Wire & Cable (Anaconda) letters included in the referenced QDR (also included as an attachment to this TER item) were re-reviewed and the applicability of the test reports to the subject cables has been established. Per IEEE Paper dated May, 1969 "Insulation and Jackets for Control and Power Cables in Thermal Reactor Nuclear Generating Stations" the XLPE insulated are designated in radiation class 3 (8.8xl08 Rads) and recommended for nuclear use for safety related equipment. This equipment should be classified in Category Ia, "Equipment Qualified".

This clarification of the cable qualification should preclude FRC concerns regarding the construction methods used for the test cables and the applicability of the test reports as referenced.

ATTACHMENT TOTER ITEM NO. 41 VEPCO SURRY UNIT #2 QUALIFICATION OF 1000V, XLPE Continental Cables The qualification of lOOOV, Continental (Anaconda) cross linked polyethylene insulated cable is ~stablished in QDR-5437-60-0l.

1) These cables were bought under specification no. NUS-420 (SN-1463) in November 1971.

2) Attached Anaconda (Continental) letters dated July 14, 1978 and July 11, 1978 (also included in referenced QDR on page 3a) indicate that they used CC-2210 FR-XLP compound for all their cross linked polyethylene cables which they supplied to VEPCO for Surry Power Plants.

3) Anaconda supplied the physical properties of CC-2210 cross linked polyethylene (used for Surry order) after various environmental conditioning, simulating a LOCA incident.

They also provided the radiation resistance curve vs the tensile strength and elongation which are good for 600V cables thicknesses listed in Table I of Attach. 3 in page 3a of referenced QDR.

4) In attachment no. 3 of page 3a of the referenceq. QDR.

5437-60-01 for Unit #1 (5437-13Q-Ol for Unit 12i per Table I they supply 600V XLPE cables from 25 mil's thickness to 78 mils of the same compound, qualified under the same curves which they provided with their July 11, 1978 letter.

5) As stated on page 11 of Section-No. 1 of the referen~ed QDR-5437-60-01 (QDR-5437-130-01 for Unit #2) the insula-tion thickness of the compound; used for the subject cables is 45 mils which is in between the values listed above in item 4. This indicates that the radiation curves and other physical property curves are.applicable to this cable also.

Conclusion:

After considering the above facts we conclude that, because the same compound is used and the thicknesses meet Anaconda's specification, the same qualification reports are applicable to these cables which qualified 600 volt XLPE Continental as shown in QDR-5437-60-01 (5437-130-01 for Unit #2).

July ll, lSiS Stvne t ~~btter l:r-..gi:.ee.:-ing Co, .P. o. nox 22 2 s Bv~to.n, ~~- 02107 Attn: P.e: Vtr:O/ S:irry Gcr.e.rat i.ng Ste. ticn, Con~in~tal ~ire anj Cable ?O's Sh-~S5 and SS-l~SB. In re~p"Ott~e ~o yo~r req~est fer additi~n~ infor::~tion c~ CC-2210 !7~-Xt.? ple~te f.L~d at"ta~hed our 6ata ~r.eet cf August, 1971 er.titled "fh::*sietl h'op~i-:ies of CC-2210 Cro!!:-lhl~ PE >~te':' Va.rio..!i I:nvircri::er.tal Co~.::.~ioni.rig, Si.::*J..lc'l'tir:g a. L.O.C.A. !ncidc.!lt iD a H~cl~a: Gc.!'ier~~i.,~g S:a~ion~. We

!\.:!'~her sta~e thzt a r~-YJ..J> .L;sulaticn t'L~e~ia..l desi~..ltcj CC-~210 was u.a~ on ~be a.1;ove r-efe~c~d ord~r..

COh"7Ih"!1i1'AL 'fiH.! , CABLt 90..-l S Ca..,,LJk, Pauls. Co--.:!ello Chief tr.r:ir.eer PZC:'tG cc: File

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Stone & Webster Engineering Co. P.O. 'Box 2325 Boston, 1-<.A 02107 Attn: Ho~ard Redgate

                       .Re:           VEPCO/Surry Generating Station

Dear Hr. Redgate:

In response to your request, we have checked our files and find that all instrumentation cable manufactured for the referenced project, of the FR-XLP and Hypalon variety, which was ordered in the time period of 1969 through 1971, was 1nanufactured with a cross-linked polyethylene insulation

material designated as CC-2210. : _.,---,

Very truly yours, CONTINENTAL WIRE & CABLE

                                                                                      \il-J S_ Cu~ clL1k Pauls. Cardello Chief Engineer PSC:ts cc: file

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30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category: Ila 44

Description:

300 VOLT, CERRO CROSS LINKED POLYETHYLENE INSULATED CABLES Manufacturer, Model: Cerro Wire & Cable Company Tag No(s) .: Spec. No. NAS-430, NA-392/1392 Worksheet No(s) .: 6-35 QDR No.: 5437-121-01 Location: RC-3A DISCREPANCY Licensee qualified the subject cables but did not furnish the manufacturer's certification regarding:

1) cable construction methods (chemically cross linked or irradiationally cross-linked) used and 2) applica-bility of the test reports to the subject cables.

RESPONSE

Cerro Wire and Cable Company correspondence included in the referenced QDR, were re-re~iewed and the

 *applicability of the test reports to various cables is established in the attachment of this TER ITE No. 36.

Per IEEE Paper dated May, 1969 "Insulation and Jackets for Control and Power Cables in Thermal Reactor Nuclear Generating Stations" the XLPE insulated are designated in radiation class 3 (8.8xl08 Rads) and recommended for nuclear use for safety related equipment. This equipment should be classified in Cate~ory Ia, "Equipment Qualified" .

ATTACHMENT TOTER ITEM NO . . 44: OF VEPCO SURRY UNIT #2 Qualification of Cerro XLPE Cables Following is the summary on Cerro XLPE cable qualification in regarf. to PRC evaluation:* - - - -- -- - --- - ------- ---- *--- -- -- ----------- -- - -

1. lOOOV, XLPE Cables: (TER ITEM #36 for Unit #1 & 73 for Unit_#2J lOOOV, XLPE cables were bought under the following 4-different specifications:

i) Specification No. NUS-325, (P.O. #SN-246), dated July 30, 69. ii) Specification No. NUS-362, (P.O. #SN-1246) ,dated Feb. 17,70. iii) Specification No. NUS-381C, (P.O. #SN-446), dated Jan. 22 ]- 71 March 22

iv) Specificntion No. NUS-381E, (P.O. #SN-1447/1246), dated April 13.,1- 1971 June 10 _

All the above cables were covered in QDR-5437-55-01 for Unit No. 1 and 5437-134-01 for Unit No. 2. Qualification is established as follows: i) Per Stone and Webster lett~r, dated Dec. 12, 1980, to Rockbestos (attached) and the purchase order, the cables under Spec. NUS-325, P.O. SN-246 were bought from Dec. 15, 69 thru July, 23, 70 Spec. NUS-381C, P.O. SN-446 were bought from July 19, 1971 thru Aug. 23, 1971 Spec. NUS-381E, P.O. SN-1447 were bought from Aug. 18, 1971 thru Sept. 7, 1971 Spec. NUS-362, P.O. SN-1246 were bought from June 19, 1970 thru March 8, 1971 Therefore, all the above cables were shipped from Dec. 15, 1969 thru Sept. 1971. ii) Cerro letter dated Aug. 1, 1969 (included on page 3b of the referenced QDR) indicates that all the 1000V XLPE cables will be "Pyro Trol-III" control cables in accordance with the VEPCO specifications. These were manufactured by Cerro Company per their Specification No. RSS-3-701 of 11/1/68 (paqe 3b of the of the QDR) with the exception of thickness. Thickness was in accordance with IPCEA Standard. The Specification No. RSS-3-701 indicates that the insulating compound used was flame-retardant, ch~mically cross-linked polyethylene .

iii)Cerro Wire & Cable Comp. letter dated Aug. 20, 1969 (Page 20 of the referenced QDR) indicates that the cables manufactured were "Pyro-Trol III" cables*

which were-- tested by FRCReport No~--p;_c2404.;.-o-1-,-- dated-- --- -----

June 1969. iv) Franklin Report No. F-C2404-01 was prepared in June 1969. It included only radiation testing upto 2.5xlo7 rads, humidity testing of 6 hrs, and steam pressure test@ 62 psig for 15 min., and cooled down to 150°F in 30 min. Four samples were tested from*product code 644N30 and 655N30 - series (four diff. batches). v) We procured one more Franklin Report #F-C2857 dated Sept. 1970 in which they te~ted 8 different types of Cerro cable. They included one sample of "Pyro-Trol III" cable also with the same product code 655N30 series (30 mils of flame retardant cross-linked polyethylene insulation thickness). This report addressed radiation (from 55 Mrad thru 179 Mrad), humidity, steam press. & chemical spray test for 7 days. The spray test of seven days is quite severe to justify the LOCA requirement of the plant (see the attached analysis). Our QDR will .be revised to reflect the review of the -,. s~bject cables per these reports and the Franklin Report

           #F-C3798 which is used to qualify these cables will be deleted.

2. 300V & 600V, XLPE Cables: (QDRs-5437-50-01,51-0l,53-01 for Unit #1!

QDRs-5437-118-01,119-0l,121-01--Unit #2 Originally these 300V & 600V, XLPE cables were bought for N. Anna power plant but later were transferred to Surry power _plant for the required use. These were bought under the following 2 different specifi-cations: i) Specification No. NAS-120, (P.O. #NA-312/1312), dated Oct. 1969 thru March, 1972. ii) Specification No. NAS-3187, {P.O. #NA-3187/4183), dated Oct. 11, 1973. iii)Specification No. NAS-430, (P.O. #NA-392/1392), dated June, 1974. Qualification of cables in Spec. NAS-120, NAS-3187, & NAS-430 is addressed in QDR #s. 5437~50-0l, 5437-51-01

           & 5437-53-01 respectively for Unit #1 (QDR #5437-118-01, 5437-119-01, 5437-121-01 for Unit #2) .
                                                            -*-- .. --. ~--*---. ,- ..-- ... ----- ... ,,....- - .. --- - ----- ------- --.

Qualification is established as follows:

i) Per Stone & Webster letter, dated Dec. 12, 1980, to

  **- ** *** - -- --- * -* --Rockbestos -and the --purchase. -orders the---cables were supplied during the following period:

Cables under Spec. NAS-120, P.O. NA-312/1312 June 23, *- - 1972 thru March, 1978. Cables under Spec. NAS-3187, P.O. NA-3187/4187 - May~-1, 1976 thru Nov. 1976. Cables under Spec. NAS-430, P.O. NA-392/1392 - June 24, 1974 thru Aug. 1978. ii} Rockbestos Comp. wrote a letter to S&W on Feb. 21, 1979 which indicates that the cross-linked polyethylene cables supplied under P.O. NA-392 were certified Class IE which are qualified to LOCA. They also enclose the qualification report for Firewall III cables, dated July 7, 1977 which covers these cables. Although the letter indicated P.O. #392 (spec. no. NAS--430) because all the cables were bought in the same time frame it has been concluded that all the cables in all the tnree specifications were covered by this report. Cerro Cable Company revised the same qualification report in Nov. 26, 1979, Dec. 8, 1980 and Dec. 23, 1980. (Ref. 27A) and called the same samples with the same name Firewall III cables with the insulation description as chemically cross-linked polyolefin instead of cross-linked polyethylene. They also provided their specifi-cation of Firewall III cables #RSS-3-021. In Pkg. # 5437-51-01 we used one report for XLPE cables which was also prepared by Rockbestos in May, 1976 for the same Firewall III cable. From a detailed review of all the above mentioned reports it has been concluded that Cerro Cable Co. prepared all cables prior to 1978 by using chemically cross-linked polyethylene. NRC Concerns

1) In reviewing the qualification cables PRC reviewed the various QDRs for the cables.The. following table reveals the discrepancy:

                             . --*-*--*-*--_._.,.,. __ . ___*----***** ,,*-*** .., .... *-* .* . --.-.--.-~~*---, - **------'-*** --*------. ---  - --**--- - ----* --- ~---.-----------*--'

I:

   *                                                                                                     'f
                                                                                                       / l IiI Ii
                                       'FRC REVIEW SHEE'rs Right Applicable QDR #s

s. No. Cable Spec. No. ITEM # QDR #s Unit #1 Ul1J.t #2 Unit #1 Unit #2 Unit #1 Unit #2 I

1 NUS-325, 362, 36 73 !:?437-53-01 5437-118-01 5437-55-:-01 5437-134-01 I 381C, 381E ' 2 NAS-120 32 46 5437-53-01 5437-119-01 5437-50-01 5437-118-01 3 NAS-3187 32 46 5437-53-01 5437-119-0l* 5437-51-01 5'437-119-01 J 1 4 NAS-430 34 44 5437-55-01 5437-55-01 I5437-53-01 5 431-121!-o 1

    * - This is the only right QDR FRC reviewed for the right cable.

I

(

i

2) FRC's general conunent is to get the applicability of the specific test report from the vendor.

In this* regard as discussed in-sec-;**1---&-2*-above~we*found*-------------- the letters from the vendor which describe the material used for the subject cables and applicability of the test report.

Conclusion:

By reviewing various test reports on_Rockbestos XLPE cables from 1969 thru 1981 we found that all the cables manufactured by them, have successfully -passed the radiation and LOCA test, irrespective whether it was chemically or .irradiationally cross-linked. Based on this finding we have no discrepancies in the qualifica-tions of the cables used in Surry Power Station. This clarification of cable qualification should preclude FRC concerns regarding the construction method used for the test cables, and the applicability of the test reports as referenced.

  .    .. *-      ***. . - .. *. . . **-~ . .                  . ----- ---- ------ ..... ----- - -- ****-----------*-- . --j

Copy to: SCBro'Wn, Jr. 'sCRossier CWilbur Attn: EGLifrage-2 HWDurkin ABanerjee (VEPCO INTERNAL DIST. TO BE. DAPiccione - -PReil ly-MADE BY VEPCO IN ACCORDANCE CECole \.,rpC/ 12 WITH NOPPS MANUAL) ESherwood LWBrown-Surry-3 JMcCann EBroderick/C Files GJBurroughs ------ --- -- EBroderick/Job Bk JHBarnhart General Files JFinnimore ?Bieniek WBDodson ISMacFarljl,Ile Mr. J. R. Kushner Vice fresident/Technical Director December 12,1980 The Rockbestos Company J.o. No. 12846.44 195 Church Street New Haven, CT 06510

Dear Sir:

IE BULLETI~ 79-0lB ENVIRONl*IENTAL QUALIFICATI01-~ OF EQUIP~.I!:T SURRY POPER STATION - UNITS 1 & 2. VIRGINIA ELECTRIC AND PO'w"ER C.01-iPAJ;)'. m~c IE Buli_ctin 79-013, "Environmental Qualification of Class IE Equipt'lent," issued to oper&ting plants on January 14, 1980, outlines the qualification

- parameters for the
environmental qualification of Class IE instrumentation and electrics 1 equipment operating wi tr..in these plants.

your telephone cor.versatior. with our Mr. I. S. l'!.B.CFarlane cm Decet:\ber !i, 1980, we request any and all qualification test reports you can furnish on the follo~ing cables you supplied for Vi::?CO's Surry Power Station Units 1 and 2. With reference to

1. 600 volt contr~l cable supplied to North Anna but utilized at Surry.

a.. Cable purchased under Stone & i.lebster P.O. t*:o.* NA-3187/4187 with a Specification No~ NAS-3187 (Reference Mr. P. Reilly's letter to Mr. W. J. Patterson dated October f., 1950). The following additional information is provided: (1) Cable supplied under NA-3187 originally ha<l a Cerro order number of 80805 which was subsequently changed _to 52313. The order addressed 16 items, which were shipped between May 21, 1976, and November 4, 1976. (2) Cable supplied under NA-4187 originally had a Cerro order number of 80606 which was subsequently changed to 52314. The order addreued 16 items, \:lhich .-ere shipped between _May 21, 1976, and ?-:ovember 4, 1976. b.* - Cable purchased under Stone & Webster P.O. No. NA-312/1312 vith Specification No. NAS-120. (1) The items purchased under }\A-312 were ehipped between June 23, 1972, and September 14, 1977, and con6isted of the following Cerro order nUI!lbers:

                  .. -~---------------, .....~. ****-,*---*,-***---**---* ...**----*-~-., - ~* - *- - .._.
                                                                                                     ,.       -   -- . .     . .  -~-- --- ~----

2 De.cember 12, 1980 Cerro Order No. _C_h_a_n"'"ge_t_o__;P;...*;...o_.--'-~'_o...:.*_..;;..N;...A_-_3_12 Items Involved ----- 2152~ OTiginal 1-19

   - - ----.- 22950- -- - --- --- - -- ---- - -- CH ------ ------ ----- - --              --- 20 - -~- ----- ---- --

24640 CF 5 21A r. 25231 CE \. l 72655 CH 7 l i3555 CH c 1,2,4,9, 12,18,19 80330 Gn 9 1-15 504il CP. 14 SA 518H CE. 18 9 6C74i Gt! 24 1-4 6~603 CF. 27 11 6390.:. CR 28 2,4,5,7,9 7051! CE 33 s,s

             . 72107                             CH 36                                         l,2,11,18 t2)   The items purchased under HA-1312 were shipped between June 23, 1972, and March 9, 1978, and consisted of the following Cerro Order Numbers:

Cerro Order ~10. Change to P.O. No. NA-1319 Items !nv9lved 21522 - Original 1-19 22949 CH 3 20-22 25320 CH 4 l 72654 CH 5 21B 73554 CH 6 1,2,4,9, 12,18,19

                !-:-*.:. b  .*.~=~-==- =* ..:* *-=~= "\:~ ::==-:=.:.-        :* .
      **, > - ~

t.* -

  .,c., ~
 ,r~*-*
 **_',j'-> .

3 Decernbe~ 12,1980 Cerro Order No. Change to P.O. No. NA-1319 !tens Involved

80331 504i2 51815 CH 7 CH 13 CH li l-15 SA 9

CE 2.: 1-4 63004 CH 26 11 6390.:. CR 27 2,4,5,7,9 70511 CE 32 5,9,12 71205 CH ~6 1,2,11,18 71203 CH 39 2,3,4,6,7,9

2. lOOC volt control cable supplied to Surry.

a. Cable purchasec; unde:r Stone & Webster P.O. !io. SN-2l.6 with*

Specification ~o. NUS-325 (Reference ~r. P. Reilly's letter to l!r. iJ. J. Fa.tterson dated October 6 1 1950). The c.sbles were shipped betweer. Decer1ber 15, 196~ 1 and July 23, 1970, and con-sisted of the following Cerro order numbers: Cerro Orcer No. Change to P.O. ro. SN-246 Items Involved EG 936C$ Origin2l 1-17 7082C CH l '18,19

b. Cable purchased under Stone ~ Webster P.O. ?,:c. Sl~-445 with Specific~tion No. NUS-381C (Reference Mr. P. Reilly's letter to Mr. W. J. Patterson dated October 6, 1980). The order, shipped under Cerro.Order Ro. 11529 between July 19,-1971, and August 23, 1971, consisted of two items.

c. Cable purchased under Stone & Webster P.O. No. SN-1447 with Specification No. NUS-381E (Reference Mr. P. Reilly's letter to Mr. 'W. J. Patterson dated October 6, 1980). The order, shipped *under Cerro Order No. 12328 bet\feen August 18, 1971, and September 7, 1971, consisted of one item.

d. Cnbles purchased under Stone & Webster P.O. No. SN-1246, which were shipped between June 19, 1970, and March B, 1971, con-sisted of the following Cerro order number,:

                                                                  ---. - ~   .  . ****--* ----. - -- -*          --------------------
                                                                                                     ----*- .-. ---*-.kb .. --------~-.-- .. ----*** .. ~:...:__-__ . . _- - - - - * . . . -~_:.               . ----*--*-** -

4 D~cember 12,1980 Cerro Order No. Chnnge to F.O. *No. s~:-1245 Spec. No. Items Involved

71611 71917 Original CE 1 NUS-362 NUS-362 1-17 3,4,10,-12, 15,16,17 7i~!7 CH 1 NDS-325 72L.06 CB 2 NUS-362 19,20,21 74329 CH 3 "NUS..:362 3 74521 CH 4 mJS-381 3,4,6,2(

12423 CE 7 nis-325 18 20946 Field Ordered NUS-362 2. ne\.~ items All of the ca!iles discussed above !:RISt be proven to be: oper-able before,.. duriug, and after exposure to the following environments: 40 Year Life Concitior.s: 0 C:oncuctor -Lempera t ure: go

                                         , c 7

Integrate-: ?.adiation (G~): 1.3 x 10 Rads Accident Conditions: Duratior:.: 120 days

           'Iemperat:ire:      275°F, 0-30 ~inutes 275-15C°F, 30-60 Minutes 150-120°f, 1-48 Rours 0

120 F, 2-120 Days Pressure (PSIA}: 58. 7, 0-30 !-!inutes 58.7-12.7~ 30 Minutes - 48 Hours 12.7, 2-120 Days Relative Hunidity: 100 percent Chemical Spray: H B0 (2,000-2,200 ppm B) 3 3 Buffered to pH of 8.5-11 NaOH, 4 Hours 2.4,x 10

                                                            ., Rads Integrated Radiation (GaIII!Ila)*:

_,I'~ () .

.t~~

r .. --*

      ~
            ,~*                                             5                    December 12,1980
,"-)       ~- ..

We appreciate your cooperation in this matter, anc! request receipt of this material by J.muary 5, 19&1. If you have any quel!tior:. regarding this infor-mation, please contact Mr I. s. MacFarlane at (617) 973-0013. --** ----- ---*

Ver~ly -yours, J JH. Barnhart
Principal Electriczl Engineer IS1'~:PBF.

                                  -..---. . . . . ff*---- .   ---*..:... - - . .

ANALYSIS OF LOCA TEST

Verification of 7 davs LOCA Test* (Described in PRC - Report No. F-C2857 dated September 1970) Equivalent to the required

- --* --- -.. --- ---------*operating t-ime --of - 120* day-*--LOCA * ----***** - - ---------* - ------*** ----.. -- -----*--*--*-**--------------------------*- --*------- As shown on Fig. No. 10 the test profile ABCDEF envelops the plant LOCA profile AGCHIJ for 7 days. The following analysis shows that the effect of test profile is more severe than the required plant profile. As. evident from the Fig. 10 the plant ambient temperature falls to 150°F after one hour and to 120°F after 48 hours. For conservatism we assumed 150°F LOCA temperature for all the 120 days of LOCA. The object of this analysis is to show that the effect of the test profile CDEF is equivalent or more to the required 120 days at 150°F (assumed for conservatism) *

                       .The first hour of the test profile which envelops the required profile of the plant is neglected and only 11 hours of the test (profile CD) is converted to 150°F by using Arrhenius extrapolation.

a) Profile CD (Referring to Fig. 10) Arrhenius equations: f (T2-Tl)

                                                -K Tl T2 T

X where T = time at an accelerated temperature= 11 hours X T = equivalent time at lower temperature= to be calculated La (J = Activation energy, EV (1.13 for XLPE per EPRI NP-1558 Final Report, Sept. 1980, Appendix B) 5 K = Boltzmann's Constant= 8.617xlo EV/°K T = Elevated temperature= 276°F = 135°C + 273 = 408°K 2 Tl - Required temperature = 1s*o°F = 65°C + 273 = 338°K substituting all the values 1.13 (408:...338)

8. 617.xio-Sx408x338 11 = TL e Solving:

                                  .TLa    =  343.days

b) Pro=ile EF (Referring to Fig. 10)

T X

TLb= 7 days 7 days at 160°F (assumed same for conservatism) Total Profile CDEF =TL= 343 + 7 = 350 days >120 days

Conclusion:

i) As analyzed in above calculations it is obvious that the c6nducted test is equivalen~ to 350 days of LOCA at l50°F which is about 3 times the required operating time of 120 days a!ter LOCA at 120°F.

ii) A solution of Borated water (1720 ppm of boron as boric acid) was sprayed throughout the test.

Considering the above it is concluded that the conducted test is more severe than the required conditions of the plant .

. ,. - -~- .     '      -. .: ...** ... ___-__ _

(7. 5 days) LOCA PROFILE Ref.: S&W Calculation ] NOTE: The seven day conducted No. 12846.44-US(B)-052-l LOCA test is esuivalent [ for Zone RC-3A to 360 days at; 150°F (sec analysis). Hence it is o~~~-o ACTUAL TEST PROFILE (Report No. F-C2857, dated Sept. 1970, more severe thin the re-I Page 5 thru 9) quired LOCA pe~iod. I

,i I

i i ( LOCA/MSLB TEMPERATURE TRANSIENT I j Rev. 2 1 FIGURE 10 -1 1 Sheet 1 16 ! (CERRO lOOOV XLPE INSULATED CABLES) QDR-54 37-55-01 ' ~~ur ry Uni L 1

i1*,i ijI l*f I' ii

                                                                                                        ~I (7.5 days)

LOCA PROFILE Ref.: S&W Calculation No. 12046.44-US{B)-052-1 J [ for Zone RC-3A 01--~~o ACTUAL TEST PROFILE (Report No. F-C2857, dated Sept. 1970, Page 5 thru 9) Rev. 2 LOCA/MSLB PRESSURE TRANSIENT Sheet 17 FIGURE lOA 0Df1-5 4 37-55 ~O 1 Surry Unit 1 (CERRO lOOOV XLPE INSULA'rED CABLES) I I :

30 DAY RESPONSE TO SER & 'TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 46 TER Category: IIa

Description:

600 VOLT, CERRO CROSS LINKED POLYETHYLENE INSULATED CABLES Manufacturer,* Model: Cerro Wire and Cable Company Tag No(s) .: Spec. NUS: NAS-120,NA-312/1312, and NAS-3187, NA-3187/4183 Worksheet No(s) .: 6-32 and 6-33 QDR No.: 5437-119-01 and 5437-121-01 Location: RC-3A DISCREPANCY (See TER Item No. 44)

RESPONSE

(See TER Item No. 44) _I

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 50 TER Cate9ory: Ila

Description:

LOW HEAD SAFETY INJECTION PUMP MOTORS Manufacturer, Model: Westinghouse ABDP Tag No(s).: 2-SI-P-IA and IB Worksheet No(s).: 6-201, 6-202 QDR No.: 5437-105-01 Location: SFGD-1 DISCREPANCY Licensee qualified the equipment, but did not furnish sufficient documentation to support (1) the similarity between test specimen and the equipment, (2) radiation resistance of the lube oil and bearing grease and {3) aging surveillance and replacement schedule.

RESPONSE

Westinghouse correspondence included in the referenced QDR, were re-reviewed and we conclude that the

- similarity between the test specimen and the equipment is established.

This equipment should be classified in Category IIc.

  "Equipment Satisfies all Requirements Except Qualified-Life or Replacement Schedule Justified".

The attached discussion and clarification of the low head safety injection motors should preclude FRC concerns regarding the similarity between the test specimen and the equipment, radiation capabilities and aging qualifi-cation.

ATTACHMENT TOTER ITEM #50 (VEP-CO SURRY UNIT # 2 )
LOW HEAD SAFETY INJECTION PUMP MOTORS (Tag Nos. 1-SI-P-lA,lB)

Tag Nos: 1-SI-P-lA,lB & 2-SI-P-lA,lB QDR Nos: 5437-43-01 for Unit #1 and 5437-105-01 for Unit #2

1. Similarity Between Test Motors and Plant Equioment:

i) Westinghouse letter dated 4/9/81 in reference to letter NCW-1317/NAW-3615 (page 2d of QDR) indicate that: a) The subject low head safety injection pump motors were rewound in accordance with their insulation specification, LIT-Spe6-711306 (Page 26 *of QDR-5437-105-01*). Since this specification was in use for several years before and after these motors were rewound, the probability for the use of other materials or procedures is minimal. b) The thermal endurance test of this_ thermalastic epoxy system was in accordance with IEEE Standard 275-1966 which describes the complete procedure (like cycle of oven aging, temperatures, aging time, mechanical, vibration, humidification, etc.). c) Test results show that this insulation system performed as well as the latest Class B therma-iastic epoxy system. ii) Westinghouse letter no .. NAW-3601 dated Aug. 19, 1980 (page 2c of QDR) indicates successful qualification testing of motors with thermalastic epoxy insulation systems, documented* in WCAP-8754, including all organic insulating materials. Therefore wedges and cabling need not be addressed separately. The results of actual tests are available in Westinghouse files. iii) Review of the insulation specification LIT-711306 (page 2c of QDR-5437-105-01} indicates that the insulation system consists of sheets of Mica embedded in a solvent-less epoxy resin which is the same as that described in Westinghouse WCAP-8754, Para. 4.2. iv} Westinghouse discussed thermalastic epoxy insulation in their application data 3170 (copy attached). Review* of the insulation specification LIT-711306 used for the subject motors indicates that the insu-lation materials, listed in the questioned specifica-tion are the same as discussed in their application

date 3170.

  *Page 2c_of Unit #1 QDR-5437-43-01 does not contain specificati?n

LIT-711306.

Considering the above it is concluded that the insulation

system of the subject motor is the same thermalastic epoxy insulation as that of the test specimen of Westinghouse WCAP-8754-.- - -This - conclusion .is _further _supported .with_ the ______________ _

fact that all Westinghouse motors with thermalastic epoxy insulation system were wound in-accordance with the only one insulation specification no. LIT-711306.

2. Lubrication Radiation Resistance and Aging Review of the plant maintenance records confirms that for low head safety injection motor lubrication chevron SRI #2 has been used. The radiation resistance capabilities of

      *Chevron SRI #2. is 1. 8xlo8 Rads per Westinghouse letter NAW-3620 dated Nov. 18, 1980 (included in the Ref. QDR).

Because this qualification value of 1.8xlo 8 Rads envelops the plant required dose of 8.0xlo6 Rads, the subject motor lubrication are considered qualified for the radia-tion.

3. Although an aging analysis was performed (see the attached analysis) a detailed maintenance, aging surveillance and replacement schedule will be submitted .

  .QUALIFIED LIFE OF WESTINGHOUSE LOW HEAD SAFETY INJECTION MOTORS

- 1) Westinghouse letter #VPU(RRK)-48 dated Jan. 9, 1981 (page 2d of th2 QDR) indicates that the actual maximum winding temperature rise from test is 70°C at 1.15 SF load for the Surry pump motors. This gives a maximum continuous operat- _

ing temperature of 110°C (70+40) at the plant normal ambient temperature of ~04°F (40°C).

2) Because the plant environmental conditions for the motors do not change during the LOCA/HELB the same operating temperature (110°C) is considered during normal as well as during LOCA conditions.

3) These low head safety injection pump motors are required to operate during LOCA period of 120 days and periodic testing of about 2 hours a month. The total operating time during 40 yrs life of the motor is calculated below .

         . ----**-*--- ------*----------- --------------- .. .- -- -- .... *-*-- ~~--~ ----~--* ..

i) Periodic testing during 40 years= (2 hrs/month)xl2x40

                                                                                                                                    = 960 hrs ii)            LOCA period                                                   = 120 days= 2880 hrs Total continuous operation =(960+2880)= 3840 hrs For conservatism it is assumed in the following analysis that the su~ject motor will run continuously for one year (8760 hrs) instead of 3840 hrs.

4) From Fig. 4-1 of WCAP-8754 (thermal aging curve for therma-lastic epoxy system, per IEEE Std.-275-1966) the qualified life at 120°C = 200,000 hours and from Fig. 9-1 (in which Westinghouse has drawn a most conservative projected qualified insulation life of motor) the qualified life at 120°C = 96,000 hours.

5) Activation Energy:

The activation energy is calculated by Arrhenius extrapola-tion as follows: From Fig. 9-1 of WCAP-8754 the qualified life at 120°C = 90,000 hours and at 130°C = 45,000 hours. Arrhenius equation

                                                                                       ~      (T2-Tl)
                                                                                 - K Tl T2 where T

X

                                                              =      life at a higher temperature T2                                      = 45,000 hours.

TL = life at a lower temperature = 90,000 hours.

                                                   ~         =       activation energy = to be calculated K         =       Boltzman constant = 8.617xl0-S T2 = Higher temperature = 130+273                                                   = 403°K Tl        =       Lower temperature                               =    120+273      = 393°K

- --------*------*--*-~--. -- .. - . **- ..... --****------------, .... *******-----**-****---------*******-* . - _._ - . -- - .. - -:- - . -* .

Substituting in the above equation: 0 x. (403-393) 8-. 617x40 3x39 3xlo- 44,000 = 96,000 e Solving: 0=1.08-==l.O

6) CALCULATION OF QUALIFIED LIFE:

From Fig. 9-1 of WCAP the qualified life at 120°C is 96,000 hours. Out of this life the motor is required to operate for 8,600 hours only (see sec. 3 above) at 110°C. Assuming it operates at 120°C, (for further conservatism) the follow-ing analysis shows that the remaining continuous operating life of 87400 hours is more than the 39 years of how operating life at plant ambient of 40°C (104°F). Applying Arrhenius equation. Q_ (T2-Tl)

                     - K T xT 1 2 where:

T X

              = 87400 hours TL  = to be calculated Tl = ( 40 +_ 273)   = 313°K T2  =  (120 + 273)   = 292°K
                          -5 K   = 8.617xlO 0 =   1.0 (see sec. 5 above)

Substituting: l.Ox(393-313)

                         - 8.617xlo-Sx393x313 87400   = TL e Solving:

TL= 659642 hours= 75 years

Conclusion:

From the above analysis it is concluded that the subject motors are qualified for a life of at least 40 years under the specified service conditions of the plant.

Thermalastic Epoxy Westinghouse Insulation For urge Ac Motors F/A 11nd other Motors with Form-Wound Coils - Sciu:nr:1-Ca.;e. PAP.'.. Wound Rotor, Synchronous Thermalas11c Epoxy 1nsula!1on is the stand- Cont,nuous research 11nd testing of all good resistance to moisture and to pra:~ ard en all large ac machines. 7.00'J volts l::nown insulating ma!erials and sys!ems 1,caHy all types of chemical con:am1r.arits. and b.e!ow. built at Eas: Pmst:;urgh using have enabled Westinghouse to l:eep Ther- They have been proven rn laboratory tes:s form-wound coils. up throug~ the 85" dia- matast1c insula11on bener than any other des:rioed later and by field service. meter frame size. This will include cract1- insulation. ca lly all type F/A machines. l11s also now Processing Thermalast1c Epoxv insula:1or. available on 1ome rnechines med 13.8 kV. One basic feature of Thermalast1c Epoxy includes vacuum-pressure 1mpre;ma:1on o~ insulation rs the use of mica in the ground the complete wound s:ator. s:ator coils as Thermalas11c Ecoxv 1s e!so 2va:lable (In form- wP!I as coil connec:rons. Tn:s makes 1~ wovno cot!s for re:1n;;s m2"1u~2:1ured a11ne wall. No other material can equal m,ca from the s:an:i:::,omt of electric strength. voltage poss:b:e to give all pans c,l tne win::*n;~ Bu~alo Plar.:. the full ette::t of me high ,esm 1ill th.:! 1s endurance and reliabilrty.

                         "Thermalast1c" hes me:,e c1n enviable name                                                                      ech1eved wnh the vacuum-pressure ie::h-for rtse!f is an 1nsulat1on. It was the frrst                   Solventless epoxy resins ere impregnated        niqwe. The coils ere not de!ormed or real advancement 1n insu!a1,:::n ,n over 20                     into the mica whrch has been prepleced          &tressed aher rmpre;;natron.

years when rt wes first ir,trojuctd rn 19~9 on I form-wound coil. Then with both on large turb:ne generators. l. mica and resin in position. chemical re- The processes describe::! are those of the Vw'est1r.ghoL:se began 10 use 11 on 1!*£e 11ction is initiated which transforms the Lsrge Rotating Appara:us D1v1s1on rn Eas: motors in 1 § ~'- It is rrnponant to remember re-.1n into a sol,d which locks end binds Pittsburgh. Primarily due to o,tterences 1n-

thet Therma:rist1c in,µl1t1on i.5. 1 ~trn. the m1-..., into 8 composite mass. The result- the size of motors manulac:ture::I al 1ne not a material. As such. r. is not s;:a11c and ing end product then tal;es advanta;;e of Su~alo Large Ac an:; De Mot:>r D1v1s,on.

many improvements 1n m comoor.ents and the excellent properties of both the mica ,oec1f1c processes va*y 1n minor de:a( Tne processing have beer. meoe s,nce r1 was and the resin. The outstanding character- essential characterrs:,:::s o! tne rnsula1,on t1rst \1se:t is11cs of the epoxies is their eimemely sy.tem are tne same.

                                                                                                                                         "   " ' * - *

1971 Su~*uou 1 i,cr,n,~i D1:1 3170. iuttd Jun<. 1969 E.. C/1736. 1740iD:

                                         -- --,---, -- -- - -~------*-* -*-***-------

_ J'reSiin_ghouse 6t:itor Coil* 1 ne E"l:l tu*ns cl tr,e s1a10, cods e,e firmly 1 ne ,nsu1a1,:::m 1mmed,a1ely aciacen! to tr.<' bra~e:, 10 \o\';u,s1and fuil*vottage stan.s with co:::oer conouc:tc:s :s generaiiy that wh,ch a se*,es of 1nsu:a:e:i supper; rings as well-insulates tne various turns in tne cod from 25 Oraces betweel'\ cod en::1 turns. wh1c:, 1r, ea:n ctr.er_ This ,s a very 1m::::::~:ai-t_ part o! e'ie:t for:n an arc::-iboun:i s:ructure at tnese the 1nsulat1on system. one w::,c:h freouent!y c:,o,:-i;s ir.;; f""loter,a1 use:: as 2 brace be-1s no: g,ven the auent,on ,1 oeserves. Since twt"e:'!'1 coil end turns ,s a non-woven* po!y-the ma1ori:y of a: motors are started este* feit wh:ch has ootn resd,encv and ecrcss-the-1,ne. tne*e 1s a ooss,:idi"ty tha: a:::s:::roeric~. stee:i fror.teO. impulse tyoe waves can oe 1m:::::se>:i on the w;no,ng i nese waves A!tE" ins:a11a:,on of* all cools an:: c:::rr.::,le-l**,*.~ ,.. ~~- c*e::*: :::Hess c,n :r.e t:.irn 1nsu- t1rl"I of \*.-~:;:*ng and ora:1ng. tr:e c~nnec .. 1a1,:,,_ esce:,a 1v t'1e turns of tne s:a:or 0 t;~r.s a'e rnc:e a'"'ld 1r.su!at~j. 2;.d tr:e s1ctcr co11s nea* the line 1e1m,na!s. 1s rea::i ,- for ,cnpreg,,ai,on. In the ligr.t of tr,ese lacts and the general Vacuum-Prs~suro Impregnation_ industry tre!"ld to hogner operating volta9es_ TnE p*e~,eate: s:ator 1s lowered 1r.to :he mica. wh,ch provides a pos1t,ve e!e:tric: 112:uuT. oress;;re tanl-.. and the air evac:.i-bamer ol very high strength. is use:l as a:e: tc a ve1,* lo*N absciuH, oress:.ire. Tl'le wrn insulation for all coils rate:: 4 k:V and e~oxv resir: !S the:--1 rnHOOJce:L vvhile main*

                                                                 ~bove tcr tne targe~ s1:e rn::itcrs. 0:1 sma!!er                      tarn.~: t!"'e vc:?..:urn. to a :evel that CO!Tl-size motors. this aod111onal suength. where                           plftei-~ suomerges all parts of the w1nd1rcg.

requ,reo. is obtained by the use of enamei Tne va:Ju~ is then release: ar:d re;:iiace:1 plus oouoie oacron-glass cove'.1ng w::* positive pressure of several armosor,eres eve* tne l,ou,d resin. Following these steps tr: s:a:or ,s rerr.oved. as shown in F:gu:e 2. Slot ln1u101,on ( M,ca Tapered M,co W*opper Wrapptr A,:,p11ed ,n tor Smooth Jo,n1 w*li'I Snee! Form) End Tope ln,ulcted I Conductor, j

                                                                  ~
                                                                 " * -*,-,r:c..,, ~"
                                                                                   '-rdt t :& 1     -1... < rr:t9f  ?mu E1tro To,:,,n; for Lead Reinforcements I

Outer S,nd"

                                                                                                                      ~L    Turn lnsulot,on
                                                                                                                                                                             -.;.,,* 6 '". ~ ~ - -

F,p 1 Typ1c11 ,u101 coil aho,..,ng elerr,tn!J of F,p 2. Aher 1mc,:egn111on. 1he 1:e10, ,, t11movod from m1ul11,on. 1t'tt U!"ll *nd p:1ced 1n 1n oven to, curing.

The m,ca:eous ground ms:..1la:,ng mater,als Tr,e nex: s:e:;:, ,n t:ie process :al:es place 1n ere ac:ol,ed as sr.own ,n deta,I in F,g 1. All an oven. wr.ere tr.e res:n ,s cure:l.

mater,als used are des*gned to be both In a::,01uon to the 1mpregnat1on of :he compa1,ble w11:i. sne! selected components w:no,nq the bra::,ng sys:em has been built of. tne comolete msulat,on svs:em. ..,r. place" by lhe absorption of epoxy resin ano s:;::iseouen: cure in tne polyeste~ fe!t. Winding Sutor in,s 9,ves ve*y h1gn strength to the bracing __

                                                               -At tne start of the wincing operation the s::-ierne.

state, core consists of tne assembled ,_ c:un:t11ngs and restraining ena plates. thus provod,ng a maximum of sccess1b1i1ty dur-ing coil assembly of lerger size motois. The Dur,no 1he ma!"lula::ure of the coils and w,n:i,;g_ cua!1t,* control proce:ures are . use:: con:1r.uously to monitor the :,nys,cal fact tnat tne co11s ere un1m::,regnated at c,mens,ons and eiectr1cal ,n1egnw of trie tn,s stage prov1ces eese of instalia11on. insulation. ---**- ------ *- ... -*---------*- --- - _____ ., --~---. *-----

Thermalastic Epoxy

                                                                                                                                                    . Insulation For urge Ac Motors re                                                                                                                                                   Flt. end ott1er Moto'.s w,:n Forrn-Wound Coils - Squirre'-Cage. PAM, V.ound Ro:~:. Synchronous Ev11lu1tion tmd Ten Program                                                    Voltage Endurance 1 tiermalas:,:: *Epoxy msula1,on was acoi:::ed                                 Since ir.sula11on 1n large ma:hines is e>.-

es standard for large s:: molars onlv et:er pe:1ed to penorm for a long per10:: of time. cvmple11on of an eX1ens111e e\.'alua1:on and a vo::2ge enourance test has been de ..1se:. test program. A des:r1pt,on of some of me In th,s test. sample coils are prepared an::i more 1mpor1an1 1es:s follows. conne:teo as described for tne sho .. -t,me eie:t:,c tes:s. Electric Strength Since the funcamer.:al functron of 1ns:.Jla- Eie:1r:c streng1h 1s evalua1e::; in de:th by a 11on rs to withstan:: eleciric suess. tne f,rs: series of breakdown tests for ea:h insula-

      ,eries of tes1s on an~* msulj;t,on svstem 1s                                   t,o" svstem. A group of sa"npie cods for to oe\erm,ne Its sho:i-t1me ele:trn: s;rength.                                 ea:~ svste~ 1s tes1e:i a: vario:.is vo:1ag':'

Compie:e insula1e::: cods a*e use:! t::,, t:-i,, leve-!s for f,xe:l time interva's wh1cr. may :ie test. cne m,nute .. one hour. O:'le wee~ o* m:Jre. 8y cionin9 a*,er;;;:e "'hol:::* values for tr,e 11 1s des,ra!:ile tha: b* any pa~i:ula, v:,i12;;~ dd!eit:~: 11me per:':lds. a voltage e;.:uran:~ class the average t,,eakdown 11ol1a9;; be as cur,*e 1s create:!. Su::h a curve 1s s~,011,n 1n high as poss1ole. However. rt 1s esser.1,al F,;;ure 3. that tne values be exa:-n,ned and analyze:l stat:st,::ally. It 1s the Westinghouse concept Mu:h of the data thus ob1a 1 ne:i ten:js to tna:. using 1he pr,n::1::,les ol sta:,s:,cal plot ,n a sHa1ght line. One way of icoicin;; enalvs,s. the coils t-,ave a t*eai;down le,*el at such data 1s to establisr. an "operating weli a::iove ttie tes: ieve! for ind,vi::ual coils. lever* a:-id exam,nc where tne ex.rapolal!:::i voitage endurance curve will intersect th,s Thermaiastic Epoxy insulat*cn has bct'l a "oper21ing level'". The Tt'iecmalas:,c insu:;- higher average sri:i:1*11me ele:tr1~ s~re::~th 1,0"l curve ,nte:se:!s the coe:at,n;; sl'ess snd ,s more reproc:.;::,bie frcm co*i-to-cc1I level at a time in excess o! 10:) years. Tnese

than other insula:,o;; systems. are res..ilts of labora:ory tes'.s on only or,e

                                                                                    *of tlie cegra::im9 mechanisms tr.a: atte:!

' l

   -                                                                                 1nsula11on and. tnere!ore. a*e not complete inc,cat,o:-is of actual ooera:ong life. How-ever. systel":'ls that fail to g, .. e ind,ca::ons of sat,s!a:tory l,fe 1r. th,s very fundamental test are not cons1deie:i favo:abi',*.

Seccr~

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d ~ ~ ~ ~ ~ ~ ~ 6 rr-f1'lrrrrr t ' r L'

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             ~DC: -
                        . t' :-

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                                              . ,-ItJ :- ;., *! 1*! r !j r* ~ t [ t~. I '

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r ~ !!f I r '. !~ ~ f !r.r r!Ir .r f r ~ r-r1 r qI f 'l L Ir* *:. . r r-r 400

         *            ["                                 I'

e l'I'*?**:*

                         ...        ~r:~*~*~ ......                    *:~I                  ..       ~ ..       l'-,t~:.t~o-:-~
        ~

E

       -a: 300        t     ~ l ' l. *. ~ d.. ri 11 J I"*-* t ll ' i l li L t d t. t ~ (I
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                                                             *1 "*
                                                                *11 ILl.'-dL1-.~.,l.. ;.fiLL tilLPL, l L,Lt. lLk.   *
                                                                       ,    H:
                                                                            * **

r
ti * ' I*

.l:;

t c:£ 2'"..>Q [* ; . '. f

                                 '  ' It      .
                                           ~I p~ ! I>") ;*, rr q tJ,1 LLf t *. f,IL Ld

( I , * : '

                                                                ,I *r F
                                                                      . . i ll "'.

r' tI~

                                                                           ;' i' I[ . r*tf_ [ r( I [ r..r I'I r~ I* I(* [

200

              ~ ~ r!jIF~ nlff r Hf ~ Hrrfl '. [ riIf: 1. ( I -~ r. w,o tr..

1 0 t~ i,llll LdL.l~l l~H LLlOCt&~-~ It

                    .:,*2           ,::*I           1            IC             r:;2            ~           10'"

t

                                                                                                                        !05           IC6 1-tov*s Fig. 3. Yoo~* Endur1~:*.

Apo11cai,on Data 3170 Page 4 Westinghouse.

Moisture Resistance 100,000 ~~ ~ : , ~ ~ "1 ~, ~'1~ ~ T,,.: ks: sc:.:e~:rg test fer moisture res,st- .,Jti*-;, *l*t 1-: . / , -: ; ar.::e *s a tes! c.., :n:l1v,dual ccils sus.:ienoed . ]','; ' l *j . ; .. ; ! .' - , . -

  ,:-: s:.,t ..... a:er. Tr.ese 31e s::ind3rO CO!IS sub-                             ....        J    ..

"':"':";"ged ex.:ecr for ;i**e leads and front lcops ~ , *J * !

1:~-c ccn1,r.:...0usl*, s~o:ected to normal !CCOO .-~ ~--' ~

  ,cl:3;;e to *;;r:;Jr,:. This ,s* 1r,e value ol the              i       .         ....-:           'l
                                                                                                                                         ,.              : ;~

rna,1r.--:W'ri l,~-:-to-;rcu~j_operat:ng voltage. :, : I *1 *1

i ,/

i' ~ ~ j

T.::!.:i r.ou~s to ~3il'J~e are then measured for eJcn ol tr.e s*,sterrs ur.::::er 1n11est1gat1cn. ~

                                                                   .~
                                                                                    *'i T- , ,

_ ~~--;~~

                                                                    ~ 1000~*....; __ _.....(;~JfJJ-:-..J

. 'I - - ~

.i

                                                                                                                              ..........       ~
                                                                                                                                                <;f- . t-:~
                                                                                                                                                     -i
                                                                                                                                                         , 1:.a.1l I -*.*

i JJJjJjjJ]jjjl t 2 3 , 0C'f1 In Solt Wo*w S b 7 8 9 10 11 12 13 ll i- . "'""" .. F,g. 6. lnsul111on resi111nc1 -1nrou;hout 1 l dr, F,g. 7. ln1uir.>0n rn:$Unce- b<<1o** Ind ltl&f 14 period. czv ;,enod.

A complete 4160 vcit Tnermalas:,c Eooxy

                 ~c-0       z:::i                           500
  !:-=-rs ~.: r:=1, .....e                                         sr~tor was submer;;e:j 1n a !ar,I: al water c::nta1n1ng 5% salt by we,g:-,: ( ap:;)rox1mate Averi!;e 111! cf ,ns\.:iltion svs:ems. imme,rw,d      se*a water concei;t;at,on) f:r a oer,cd of 1 4

~ Jtage. *cpaed cor:t1r:ucusly. da*1s. The 1.n.sulai;cn res,stanc:e was cneck.- - e::i :nrcuchcut tr.:s ce:1oc. i=,oure '5 1s the F*;~re .! s:-c-.,.. s ?re -es1.,IZs cbta,ned cv Lhrs

"r~:~c~ . ..!s :a."'i ~= s-:en. the ecoxv r~s1n

 *.,-,:re;;nant ,r:"'oa:-:s o~:s:ar:i:ng moisture plot of ,r,~s;..;la:,on res,srance ::"'::itained 1:-irougnout tr.e 1 4 ::a,* .:;er:cj.                                                                                                              )

TS-5!3nc: t:) l,""'e Ther:-nalas?1c conceot. Tr-ere are variations in tre 1evel. probably di.;e to cr:a:>ges 1n :he corr::::ic:1v1iY of the

                                                                  ,,,s*Jiat1on sur!aces at tr:e w:nd,ng 1erm1nals.

but all ie3::1,'1gs a'.e c:.:,:e r.;~. F:;'Jre 7 is g C:

a clot :if tre d:electr1c acs:ir::;t1on tes:s C taken before and after tr.e i 4 Clay oeriod ]

                                                                                                                                                                     .s while 1n me water.

A: :l"e conclus,on cf this cenod the stator was removed from me tan~ and without F;g 8. Ti:r.s cl wound , 1 50-volt st11or undw r1r.s1ng or ::k11ng was suo;ec:ed !O a 4800 cond,uor.s cl 100'4 hu<r.1d1ty. volt ac rms high potential :est. Trie w,noong w,thnelc this test with no d1H1cultv. This 351873 1nd1ca1es the w:nd,rg could r.a .. e been F,g 5 Comole:1 mo,or w,od,ng ,mm.-~ed 1n w111K cieaned and dried and returned to seN1ce. for 1es1 ct mc1Stur1 rn1,ante. In s:,11 anoti"er test on a ccrr.plete w1n:j1ng. Toe;:s cn *r.:::v,c~al ::oils without cor.nec- the eHec: of con:muous e~:;)csure to 100%

 ~-c-.::. ho*...,,ev'?'. a,~ rct tr-~ eritrre story. Tr.e         re!ative hi.;m,o,tv a: 5C'C was 1r.ves: 1 gated.

rr.J.s!ure !'es sta:-:ce cf :cmpie:e ~*1ri;::r~s In some respects tn*s ,s a mere severe test

 ;as .;!so :een .c:,est,ga:ed. In F:gure :i a                     than actual subme*s1on s,nce water vaoor w,".::r.g ,r:lu:i,r~ all conr,ec:1ons 1s s:-:own                 has a h1gn Oegree o! penetration through corr:;:,le:ely s ... crr.erged ,n a tar.I: of salt              f,1rr.s. Figure 8 shews tt*,e results. After wa:;:r. Tre w,r.o,r-g !ea::ls are connecte:j to                  more than 3000 hours of :t1 1s tyoe of ex-

i IT'-:gorini br:c~e so tl".at 1nsulat1cn res1s- posure. ll'le Therma!ast,c Eocxy insulated 1ar.:e ::a0 t~ ~casured. w,r.d1ng stoll had 1r.sula1,on res,stance measured on thcusacids cf megohms.

~~---'":""--~-

                                             --*-  -~~~*        --          ...... ~. ,......._,._. __,, __ .,._,,~---...,r- ..... ---- ... - .. * - -     **-------.*---*---*------ - -

Thermalastic Epoxy Insulation For L..uge Ac Moton F/A *nd other Mot::il"!*wi::-i*Form: Wound Coils - Sc:.mrel-Cage. PAY.,

\                                                                                                                                   Wound Rotor, Svncnrono1.1s Chemical Resistl!nce                                            T11bl* A Res:s,ance to chem:cal coMa~:narts ,s                           Solvent &: Chemical Resistanca of Thermr.lu1ic                           Epoxy Resin Castingr-r   anciner tac:or 1n manv 1no0s1r1es. In look-ing at resistance to acios. bases aria sol-Soh,e'""t          T.me ct l~"T"l,:~10 ..  . S~o,e D t-, a,':lness f**:ent*Z'
                                                                                                                           'w\e*;rit Cnar.t;'!'

P*,::**:~ Tt-,,ci:~.~u cf Cr-,.1"',~e I R~tir; i ver.is. nothing has oeen fou.":d ,r.a: ,s tne

eaual d the ecox*, resins. Tc:O!e A S"!ows a ta:;:.;lat:on of some cf tne man-,, iesl5 rnac:e 50'i.

                                                                       ~Cf!::

0

                                                                                          /,: no,.rs 84 es 0

C 0 (I Ex:e.;e~-~ A:.: 45 hc..i*s 65 0 0 w:iere,n res,r. sarr.ote-s Vr*ere sub1ec1~:J 10 i 0~"5 E5 0 0 l1ou ..: : oains of var,ous contam1na:1n; ma- 1 ::i cays 86 0 0 ter:ais. Tr:e resin use::i :n Therrnalas:,c 10',; 64 0 U:e,;e:: 0 0 Cccxv 1r.sulct1or°' snows outstand;ng ~es:s* Sc::-urr-, :'~ fiOu!S C5 0 0 tance 10 all o! them. r1..,.:!01.i;Jt 4.8 nou'S S5 0 0 7 cavs E:, 0 :)

                                                                                         '. 0 cays          e                 0                       0 Thermal Enduranc&

Te,.,-:oera!ure 1s w:de!*f accep,ed as t:e,rg A:e1;~e 0 s:; 0 C Goe~ cr*e of the lim1t1r,g fac:ors ,n 1ns:.;la:.:)n life. ~4 r;cu~s 61 + es + 9.5 To oe1erm1ne the abii1ty of 1nsula,,on t::i 45 "*""'S 45 +15 3 + ~ 7.: i 2 n:,1.:is De:crrpcs~C:: s:a'.'.O up unaer therr:.al aging. tesr*ng *s ::one 1:) cavs by foiiow1ng the bas:c cor.ceot cf func-t10:1al test:ng outlined 1n It== 275. 5! ..,a .... e 0 67 0 0 EJ':~i:e"'* 24 nou~s as 0 0

                                                                                        .d;     ri.:..:rs   ee                0                        0 Tt:is !S the **rnct~rene** rroe of test.:--:;                                          7 =a*.-s       68                 0                        0 wr::rem smail. compiete cods are mEce                   :!"\                        : J :a,*s          es                0                        0 ac:o~oance witn ach.1al processes em-                                                                66 pic,*eo 1n the 1risula1,on S'{Stem be1r.g fval-Tr1c":*cr:;-

etn" 1,,. ! . 20 r-:o .... rs

4. 46 +

0 7.5 0

                                                                                                                                                   +1:.5 Gccc uaie:. These coils are tren mouMe::i ,n slots                                      .: 8 r,!J..;rs                     D*:ompcse=:

er: a rr.o,orene and the ieacs broug-:: ou: :n 7 :a*,*!. 1C :avs an a::c,r:;or:a:e fash:on as s:-:own 1n i',;:i*e 9 f~*J so tr.at e!ec1rical t~s:s i:2:1 ce mace. Tnese D*~!wt::: ::; 53 0 C* E.ic~ 1,cr.: mo:orenes are then s.1b;ec!e:::l to a cvcle ... ,o 24 r.:::.:rs 65 0 0 of oven aging, mechanical v1brat10I". .:~ r'!Ot:*S 85 0 0 7 ~a*,*s ES 0 0 hum,d1f1ca:1on ano elec:ncal tesr. Follow,l"g , 0 ~a . . s ES 0 0 th*s. tre cycle is repeated and the nur.:ber of cyc1es to failure 1s recorded. 3-l3066 Fig. 10 Th.,m&I *"du11nc1 ol 1Mulr11on 1)"11m1 for F,.. 3... Mo:oron, .. u,so for 10111ng thtrmtl tn* ,01111no rn1<.h1~,, !*stl-d 1n motcr1ite, in 1ccord*nc1 dut1="'.t:11 of rri,ulation syaam1. w,t~ IEEE 275 ( ~ volt proof tut). This is a comoarat1ve test onlv. There are against temperature on the hor1zoc11al ax:s. no s:andard values for tna test cono1t1ons As can be seen. tne life of all systems de-or number cf cycles or the hours of ag1nr;i *creases with increased temcerature. The tr.at a system should withstand. If 1s l:nown. "'pre- Therrna!as1,c** curvs ,s the data ot;,- hc~ver. tr.at for more than 30 years class 1a1r-ed en tne c12ss S 1nsulat,on svstem B 1nsulat1on has been in service ano that usej or1or to Tr,ermalast1c. In go1nq to tne 11 has oerformeo sat:sfactordy. The proce- Thermalas:,c Ecoxy svstem. a curve 1s OD* Cure 1s. therefore. to compare new or pro- u:neo wn1cn ,s sr1111e.:i over on tn"' ,.,,,,-al pcsee systems with !he cloer service- sca,e :,-,, a:,oi.,t

1.. n1s 1n 1:sel! ino,ca;es proven svstems. F11,ure 10 shows the data a h,gn or.ier c!
tnermal 1ese:ve" in , ner-Ob!a,ned by such tests. Hours of l:(e IS malas11: Eooxv ,nsulat1on. This svstem 010:ie-o logar1thm1callv on the vertical ax,s oual1i1es !or c1ass F :nermal rating.

Westinghouse

          ~-~,'-  ._   ......

Thermal Cycling Mechenic&l Strsngth Abresion Resinence

         ;..1 :r.:;o,s .n service a:e rec*~**e:i to w,1h-                                        All rr.01or insulation mav be sub1ec1e:i 10                              r.Aot:rs a~e not 1~ire::;wer.t!;*          e,.oe:1e~     to E,:-::: *;ar*;:r.g aeg*ees :,! r~e*mal c*,cl,ng.                                        severe mecha:-i,ca! stresses dur;r;i cpera-                              o~era1e 1:i ar. e!"'t'wi~c,n~ent *.-..:-.::~ suDj~c:s T*e a:d:1*. of Therma1asr:: E::i:-xy 1nsu!a11cn                                         1,on. To de1e:m1ne ,rie aoil,1y o! tne com-                              tr.e co:l 1nsu!a!1c:-: to ocrr::)a*::ii~~! t*Y
         ~J *._-r . . s1ar: !t'.err.,al cychn; ar,d rr:a*iita,n                                  olete Thecmalas11c Epox-_: w1r:d1ng to v.-,tii-                          h!g!"'dy* abrasive c3rt;cles. 1r:s :,c:u~s ci=-

r.-: :::...*e res:stan:e 1s O!a,:;;2:,:ally oemo!"l- Slo"d mechanical sl!esses. !he loi:ov:*:ng C3use ~"'le coolir.; a:r wh::!1 :s c:~C'J13!~= s:*3:;;;: c*, :,*e f:llo*.v::-.g 1~s:. test has been oevised throL..;;"1 t""e rr.otor c:r:ieS f.rc:-i !r,e S1*.ir-rourHJ;;og at.r.osc:-:ere of tne r.:,::r a!"!~

                                                                                                 \'Vnen a mornr w1nd1n!;; 1s !1rs1 cor.ne:1ed                             ohen con:a1ns a g*e=! de31 cf aoras,11e acrvss :ne line. tr.ere 1s a iarg;; Cu'.!e:-:1 1r.-                      pan1c~!ate r.-1an::r. Tn;s_ part:c:..Pa:: r:.ar:er ,s rt.:sh ro r.,e:~an,cal fcr:es. w!'"n::r-i te:-1C to                      force: a: h;g'i v-.?:v:,:*{ ever t;,e e!"';O V',*1no-severefv        oi~tcrt  tr:ern. A::e~uaie tra::rg                       1ngs of 1:-:e sra~::>r co1:s ar.: iS c~ ....*:\,a:er.! :o or-:?veri:s trie ac:u:,I o-:forrr,a!1on. t~t t:--1:"                     a sancc1ast cc~r-;:,""lJ\f use.: ,'1 m3""'1Y ,r::~s-
                                                                                                 !o::::s are r,evenheiess present.                                        trial o:*~**Cat1::.5 tor c!ea~1rg .:~.: str:~:;,r-.;

ooerat1:~s. A motor w,th Tr,2,m.;ias1,c Epcx*1 1r:sula11on was subJec:e= 10 1 .000 fc11:-vo11a;;e s:arts. In or:e~ ~:, al:C' ..-... t"""= Y...1ri~:r.gs 1::, c~era!c After comp!el,on o! the 1.000 ful1-volla;;c under t!'"zese acv,er5~ ce,nj1t!C!"',S. s:e::13! s:ar!s. the entire wcuno sta:or was suo- treatments ha .. ;; oeen deve!c:::e-j_ It ,s weil

merged 1n a tan~ ol ..... a1er ar.::l a ten-m1f'\c1te k.r.cvwn triat elasic~,ers or ~:..:c.::e:s a~e o,,e,1-?:tri: a=:scroti:-:--, c-..:rve Yv2S m2oe C3Dat!-? of atscr:!;g ~r.erg*,, *~~::,r. 1rnp2-:t 1mmea1a1e!y af,-:r submers,on. w11n ano,ner na*o-2r rr.a:er,aL T":refore. l"!e 371544 soe:1al trea1men:s :cr,s;st cf a laver ol an F*;.11 Cycirr.g l~Sl ol wound Sll!Of*P&eked wrth elas1:imer1c material wn1ch 1s caoab!e of

        ,:e.                                                                                                                                                             absoroir.g this 1::r:ergv and li~eraUy bouri:*

0000 **. ,ng rne aorasive ~art:cies cH :r.e surface.

r.* ~ 1 s-::.v*,s a .... cunj s:a:cr paciced J

Or~nct Cftdl hnmt-d1a~li'7

                     . *!*  *C':' s~ t~.at ~r.e *"!"Ce::eij tr")errno-                                         A.fter Sublf"truo"                                        Tne coa:ir.;s are a::1*-?~ ow:::' tr"e C0:7i*
      . ---- -=s ,t"j t-e *N1~i::!"'g :r:::,caH~ minus 4C*::.                                     .,0000       .I.Ito, S1cr!*S*=~                                        ple:ed w1n:i1r,g bv c.p:::i1r.g or sora*,,~g so E             T111
         -..'.--='~ :l"\e \~.1.r-::r.g rea:r:e:: tr.:s tem~era-                                  ,:;

g 7000 a.st:, p~ov::2 pn :nergy-acsor:,i~g s:.;dac~.

.!: :~e O'Y i:':' was rerr;-*~ ar.d t~e i 6000 Tn,s naj 10 be a ve:*; soe:1al :o::t1r.;;i w~ **:h s:~::r \*,as ,mmed,atefy ::,la:e::: ,n an oven. _.-5000 wou!:l nave tr.e abil11v 10 wori; r.ot ohlv as v.-*:~ r.a.::: ce_en prenea1,;:: to 150'C. Tr::s ~ 4000 e apol:e:L cu: aisv at~~= ooera!*!""g terT",::e~a-a** .;s *ecea:,;;: four times. c*;:l,ng between; -:!= t::mce!ature llm11s. a;id tr.e stater

*=

~

turf o1 tr*,e cod suiiac: ar:J T~ rna1r:1a:n ~r..s prcoertv over the Ieng per,cas of t,me tne

-,;-: c:mp:eteiv suomerged ,n wa:er. F*g. iz . . . . * ~ j ***]'1 ma::-i1nes are expecte:: 10 rur:.

        ;..*e : 2 sno*.-.s tt',e! :esults ::it:1a1ned.. and 1n-

..:~:-zs tr.a: :~f rflC1Stur! resrstance is un-

                                                                                                 ~                 ;    .  . .         : .     .~ ~            .         Radiation Resistance of Thei-melastie
                                                                                                ~     J.000~ ........... . . , . ~ ~ - ~ ~ _ . . .
        .:"'e::ed bv 1rermal shock:.s c;f i 90°Cc                                                           25     4 5 7          I       Z     3 4 5          7   10    Epoxy Insulation Of the various ccrnpcnents :~.a: go to rnate Fig. 1 J. lnsul*:,on re,,,unco chu1c1011111c1 of sub*                    up the Tnermalast c Ecoxy insuia11on svs*

me,rged ir,erm1l1stu: Epcry sator yrr,1nd1ng tern. the eoo>:y 1moregr,an1 1s 1ne most sc.s-(4160 ,rol!SI 1her mo1or was subj.clod 10 1.000 full* vol11g1 rn11u. ceot1ble to ra=1a11:;!'1 oamage. ine m:ca and fiber glass pcr1,ons will be ur,affected t~.:-cc .:

                               *.i *-:;*

Even alter these severe condn1ons. the w1no1ng had greater than 10.000 megot-,ms by dosage leve!s that would oesiro*{ :ne

                                                                                                                                                                         ,mpregnat,ng res:n. However. 1ne e;ioxy of 1nsulat,on res,stance alter ten minutes                               1mp:egnan1.* because rf its aromat,: na!ure.
       .;, ::--.:-:c        a.  *                                                                                                                                        ,s one ol tl"le beller res1noi.:s ma1eria;s w:in
        ':,                                                                                     of voltage as shown in Figure 13.

regard 10 ra::l1a1,on res,st3nce. ~3v1r,g a pre-

      ~
        ~
                                                  ---------                            .,...                                                                             d1c1ed life of 40 vears at a oosage of uo
      ~
        ~* -:.:..::-= ...
       ~*
        ~
                                               --~~--~-~~ *
                                           -.......c;:31.-a.;i-a:crt,'IIC,!::'Q.-...SaQ
                                       * *l -4 C!l l<d .,a "'1 UI P ~ .:.f ~ ;.1 :if.~ 'lfi
                                                                        "° :i:.1"i P<l ..:.I
                                                                        '.3 r'I 2 El to 1C' ra:s at !cw rao.a1,on rates of less than 100 rads per hour. Norrr.al rad1a:1on levels w;!n,n the containment vesse: of a nuclear power s1a11on are below a ra:e of OP*-                     * .::      J,f:;t~l::!~~H.J~:Hl
      } 2.:'C*:
      £
              -~..,~ ...(r:.J._~~ &a!
                                ~ *1     ., , ~ ., "'-~ '."I '"'l :3 ~] ~ ~ ~
                                                      ,;:,I  z:!d;;.J..,...,i~ &J 50 rads* per hour w:lh a total oosage of 2 x l 0 7 rads over a period of .:o years.

0 1 2 3 ~ 5 6 7 e 9 IQ 11 ,2 ,! ,4 Tl"lerefore. ThermalaSIIC Epoxy w:r.=:1ngs 1n T1~.,.1,,.....,,,~ a typical rad1a1,on environment w,11 ooera:e

                                                                                                                                                                        .many years w:th no measureabie delerior- ..

auon due 10 tr,e rad,a:,on. J! ( -:; _____ -o ...c._,_,*.~*----**-*--***--******

Thermalastic Epoxy Insulation For Large* Ac MotC>f' F/A and other Motors with Form-W~und Co;is - Sc:u1rrel-Cage. PAf,t Wound Rotor, Svnchronous

              \\'indin~ Repeirs                                        3. Ir, the ca~e e,f y,::Ces::>rea:J oarna;e ;r.*

The stanoa~.:,zat,cn o' Tl"\ermalas: ..: ::pcxy volv,ng a number cf coils. 3 COTT'::-'e:e re-1nsul2t,ori for large mowrs allovvs a ccim* w1r.:i 1s re::::omrnenced. The ela:iora:e fa,:,\. ple!e!v new approach to :ne st:01e::t of 1t1es :e::u1red !or tl"e Thermaias:*c :Poxv w1nc1ng recairs ar:j tne Cesirabil1if of syste'!l make 1t necessary to re1urn J!')e carrying soare cods. s~ar:r to ~ne factor{ to cbta::i t~e cr1;i1na! pr:::::ess1:1g. On a bre3l:co*.,,,., t~s,s. !'1,s ~=" First cf a!:. t~e pcss:bil1rv ~f w1n::i; r,e- be c;ne :.JSualiy in :riree v. eer.s or less ar.:! 1 p31rs beH... O re~:.;tre:l :s re:::uceO t*:i 3 r."1n1- re:u,res ~o l::i;er !,a:1 ">A.'Ot.:li:: oe r:::..::~ej mum far b-~low t:'131 ooss,b1e w11n 2'1',' p:e- 10 orcer ::ads ano revv,r.a 1n t~e fie::. v1ous 1r.sula1,on svstem. If cons1dera::cn :s g,ven to s:oc~:rg a fu!I Tr--e baS!C a::r~a:h :s r: c~ov:~e f:ir 1he set cf coils to ~ro1c:t aga1~st S'JCr"i a fa,hJre

            *ccr.::rige;,c:es thal rr-,a*y a~1se w.th m1n!mum         on a 7nerr-na!as:1c E::ioxy ir.sul21ed rr.a:~,ne.

tot.'.ll exper.sa to tne user iriciua:ng b:;rh :r.e ie:or:-:.~er,da:;on is tr.a1 3 c~:ncie!e r:pa1r anj C:)v.*nt1me ccs:. woun:l s:ator oe stocked. Th:s w:11 ::::ost 110 more tr.a:-: a full se: of coils o:us !l"e ex* De;::enc,ng on tne exter.t of carnage. pense cf str1~01ng ?r'\e old \***tnd:ng 31"':d several a!ternat:ves are available ior w,r.d- w1r,d1r..g Tt;e r.ev"* c~ds 1n anv :iia:::-ure. 1ng recairs: Downtime 1s reouced to a m1n1m1.;m.

1. Mcst failures resulting iro'!l acc:de:-ital me.:t-,anical carnage occur on tne er.d w,:-id:r.gs wnere the coil ,s excose::l. i=.e-pa,,s to the er.ct w1r.d,ng ex:erna110 tne ccre can be made by :r.e conver.:;or,al pa::h1r,g me:nod.

2. In the re:-note p:ss:bd:ty of cod f.;!/ure w;!~in :~e s!ot. 1t is ~ot pr2:t1caf to ~=::!c:e cc:is by co:wen:1cnal mea~s. Tre verv process1rg of complete 1mpegnat1c:i ar.d barding which insures a fail:.ire-free coil also mao<:es ;t 1mpract1cal to lift er.ou;;:i cods to replace both :op and conom coil s1ces of a damaged coil.

To rep!ace a damaged coil :n any machine. it has always been :iecess;:ry to l:ft at least a full throw of coils to get me new coil 1n. Ou11e ofter.. this opera:,on resul:s in cam-age :o otner coils. iherefore. when s;:;are coils are considered oes1rable. 1t has been standard practice to carry at least ~~ or ,., of a set 10 replace one er Nvo damaged coils. Westinghouse has developed a technioue of coil re;:;lacernent, for use on motors manufactured at East P1t1Sburgh. which rr.aii:es it unnecessary to disturb any cods exce::;t the damaged coil or. at most tM other coil 1n the same slot. For *Thermalas!lc Epoxy 1;,sulated machines. 2 standard repair bt can be suoplred ,n. eluding six half coils suitable for repla:::,r,g et!r,er top or bottom sides of the coil. Also included are the necessary materials. tools and 1nstruc::ons for repla::1ng damaged co:ls. Complete spare Thermalast1c Epoxy insulated coils are not furn,sned l,;r these

     *-- - ma::h1r.es.

30 DAY RESPONSE TO SER &.TER -- ~ ~. - -. ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 51* TER Category: IIa

Description:

OUTSIDE RECIRCULATION SPRAY PUMP MOTOR Manufacturer, Model: GE 5K6287XH41A Tag No(s) .: 2-RS-P-2A and -2B. Worksheet No(s) .: 6-167, 6~168 QDR No.: 5437-104-01 Location: SFGD-1 DISCREPANCY The conclusions section of the 90-day response states that the lube oil and bearing grease were replaced. Docu-mentation of the lubricant radiation resistance was not provided.

RESPONSE

These motors have oil lubricated bearings (see GE report 492HA248, included in QDR). Appendix III of the QDR documents

radiation resistance of the recommended lubricating oil, Mobil DTE 797, to 109 rads, which far exceeds the service condition of 8xlo6 rads. GE manual GEH-3292C, included in*the QDR, recommends "regular" oil changes. Under the plant mai;ntenance program the oil is periodically replaced with the oil recom-mended by the motor manufacturero The statement provided in the 90-day response conclusions section is a generic statement that was applied to several motors, intended to show that lubricants of more than adequate radiation resistance are being used.

This item is considered fully qualified and should be assigned to TER Category Ia

30.DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 62 TER Category: Ila

Description:

CHARGING PUMP MOTORS Manufacturer, Model: Westinghouse Tag No (s).: 2-CH-P-lA, lB, and le Worksheet No ( s) . : 6-7, 6-8, 6-9 Q DR No . : 5 4 3 7 - 6* 9 - 0 1 Location: AB-2C DISCREPANCY Licensee qualified the equipment, but did not furnish sufficient documentation to support 1) the similarity between test specimen and the equipment, 2) radiation resistance of the lube oil and bearing greases and 3) aging surveillance and replacement schedule.

RESPONSE

Westinghouse correspqndence included in the reference QDR, were re-reviewed and the similarity between . I

   *the test specimen and the equipment (including the motor leads) is established.

This equipment should be classified in Category IIc.

    "Equipment satis*f ies all Requirements Except Qualified.

Life or Replacement Schedule Justified". The attached discussion and clarification of the charg-ing pump m9tors should preclude FRC concern reqardinq the similarity between the test specimen and the equipment, radiation capabilities and aging qualification.

                        .. -ATTACHMENT TO TER ITEM. #62 (VEPCO SURRY UNIT "#2)

-- -cHARGING -puMp- MOTORS:

Tag Nos: 1-CH-P-lA,lB & lC for Unit #1 QDR Nos: 5437-08-01 for Unit #1 5437-~9-0l for Unit #2

1. Similarity Between Test Specimen and the Equipment.

i) Similarity between the motor lead insulation of the test specimen and the equipment: a) Westinghouse letter no. NAW-3615 dated Oct. 30, 1980 (included in the referenced QDR, page 3a) indicates on page 2 that the Surry pump motor insulation for the charging pumps is thermalastic epoxy and the qualification is covered by WCAP-8754. ii) Similarity between the motor lead insulation of the test specimen and the equipment: a) Westinghouse letter no. NAW-3620 (included in the referenced QDR, page 2c) indicates that for the motors which employ the thermalastic epoxy insula-tion system, the testing documented in WCAP-8754 includes all organic insulating materials in the motor. Therefore wedges and cabling need not be addressed separately for these motors. b) The thermalastic epoxy system, developed by Westinghouse and first put into service in 1962, (see WCAP-8754, Para. 4-2) and only one insulation specification, LIT-711306, were in use for winding motor coils (see QDR-5437-0B-Ol, Section 2, Page 2b), it has been determined that these motors had motor to leadsplice materials as discussed in specification LIT-711306. Specification LIT-711306: lead insulation and tying (page 3 of 14), winding procedure (paragraph 29, page 5 of 14), and sketches D and E (page 13 of 14) indicate the use of sleeving (M#41524-AV), resin tape (M#9948-3), micatape (M#43865-AD), and glass tape (M#41514-CT) as the motor to leadsplice materials. These materials are in fact the ma-terials used when winding the subject motor coils .

                                                        --.------,.-*-*--*- -------~- - . -- ------- ---- ---. -*-~---

Westinghouse letter dated April 9, 1981, in* reference to letters Nci-v-1317 and N.Z:1.W-3615, states that motorettes using an insulation system simil~r to the one prescribed in the rewind--spec-if-ica tion-- (L-IT-7-1-1306 )-- were- -tested** for thermal performance in accordance with

IEEE 275. This is basically the same as described in paragraph 4-3 of WCAP-8754 per IEEE 275-1966. Therefore the motor to leadsplice materials were tested, as part of the formettes ,-

fo~ thermal endurance to determine the resistance of the thermalastic epoxy system td thermal aging, following the guidelines for accelerated func-tional testing, as outlined in IEEE 275-1966. c) In addition to the above the review of WCAP-7829, table #22, page 46 indicate that the motor lead cable is silicone rubberized glass taped insula-tion. This is the same as indicated in Westing-house insulation spec. LIT-711306. d) The same is confirmed from Westinghouse Applica-tion Data 3170 (copy attached).

Considering the above facts it is concluded that the motor lead insulation of the subject motor is the same as the test specimen of WCAP-8754 and 7829.

2. Lubrication Radiation Resistance and Aging Review of the plant records shows that Exxon-Teresstic-46

                  .has been used for charging pump motor lubrication.                  The radiation resistance capabilities of Exxon-Teresstic-46 is 1.4xlo7 Rads per Westinghouse letter no. NAW-3615 dated October 30, 1980 (copy attached).

The worksheets will be revised to reflect the overall radiation resistance qualification of the motors as l.4xlo7 Rads. 7 Because this.qualification value of 1.4xlo rads envelops the plant total required dose of 7.4xlo6 rads, _the subject motors are considered qualified for the radiation .

3. Although an aging analysis is performed (see the attached analysis) a detailed maintenance procedures and aging surveillance and replacement schedule will be submitted.

QUALIFIED LIFE OF WESTINGHOUSE CHARGING PUMP MOTORS

1) Westinghouse letter no. VPU(RRK)-48 dated Jan. 9, 1981 (page 2c of the QDR) indicates that the actual maximum winding temperature rise from test is 70°C at 1.15 SF load for the Surry pump motors. This gives a maximum continuous operating temperature of 110°C (70+40) at the plant normal arr~ient temperature of 104°F(40°C).

2) Because the plant environmental conditions for the motors do not change during the LOCA the same operating terr~era~

ture (110°C). is considered during normal as well as during LOCA conditions. During HELB conditions the ambient temperature goes to 140°F (from 104°F normal) for one hour only.

3) Out of the three charging pumps one pump is required to operate continuously during the plant operation. It is conservative to assume that each pump motor will operate.

continuously for 14 ye~rs and remain idle for 26 years. In the following analysis it is shown that the qualified life of the motor is more than the required 14 years of continuous operating and 26 years of non operating lives.

4) From Fig. 4-1 of WCAP-8754 (thermal aging curve for therma-lastic epoxy system, per IEEE Std.-275-1966) the qualified life at 120°C = 200,000 hours and from Fig. 9-1 (in which Westinghouse has drawn a most conservative projected quali-fied insulation life of motor) the qualified life at 120°C = 96,000 hours.

5) Activation Energy:

The activation energy is calculated by Arrhenius extrapola-tion as follows: From Fig. 9-1 of WCAP-8754 the qualified life at 120°C = 90,000 hours and at 130°C = 45,000 hours .

-- - -...: :..:--=-:-..---.--:--_----* --._--- - .. -

                            ----- -~---*- ---- -=--
                                         ~

I

      .Zrrrhenius equation T

X where T X

                 = life at a higher temperature = 45,000 hours TL   = life at a lower temperature = 90,000 hours

() = activation energy = to be calculated

                 = Boltzman Constant
                                                     -5 K                             = 8.617x10 T

2

                 = higher temperature      = 130 + 273  = 403°K Tl   = lower temperature       = 120 + 273  = 393°K Substituting in the above equation:

()x(403-393)

                                 -s.167x403x393xlo-5 44,000 = 96,000 e Solving:

() = 1.08 = 1.0

6) Calculation of Qualified Life i) From Fig. 9~1 of WCAP-8754 the qualified life at 120°C is 96,000 hours. This life is converted at 110°C (which is maximum operating temp of the motors per Westinghouse letter no. VPU(RRU)-48 dated Jan. 9, 1981) by using Arrhenius extrapolations:

Arrhenius equation Q_ (T 2-T 1) K T xT 1 2 T X

                      = TL e where T

X

                      = 96,000 hours TL = to be calculated T2 = 120°c + 273    = 393°K

Tl = 110°c + 273 - 383°K 0 = 1. 0

Substituting the values 1.0 X (393-383) 8.617xlo-jx3-3x383 96,000 = TL e Solving: TL= 207,542 hours= 23.69 years Conclusions Hence the qualified life of the motor at 110°C is 23.69 years. Out of this the motor is reg*uired to run continuously for 14 years. For conservatism let us assume that it operated continuously for 20 years at 110°C. ii) Now in the following calculations it is shown that the life of 3.69 years (23.69 - 20) at 110°C is much more severe than the required 20 years of non operating life at plant ambient temp. of 40°C. T = 3.69 years= 32324 hours X TL= to be calculated T 2

                                                                         = 110°C + 273   =  383°K Tl=           40°C + 273   =  313°K Substituting in the Arrhenius equation 1.0  X  (383-313)
                                                                                   - 8.617x383x313xlQ-5 32324         = TL e Solving TL = 3235 years          > 20 years Hence from the above calculations it is concluded that the subject motor is qualified for 40 years of life for the required plant service conditions .

I . - - - - ..--. -- -- -- .. **-- ----****--*--*-- --~---- -.~....... -

       ~-- - --- -*--* - ... -

Westinghouse Thermalastic Epoxy Insulation

                           -~-                                                                                                          Fe: urge A::;_ _Motors

{~i Ff:.. e:"ld c:her Mo1::,r. .... ::~ For:-n-

                                    -                                                                                                   \'.cund Co1:s - S:::u:r.e:-Ca;:e PA1>~.
                                                                                                                                        \\ .:>und Rote:. Sy:"l:Mono~s

/ Thermal2s1rc Epor-,. ins:;latron is the stand- Contrnu:ius resea:ch end testing of all good resis:ance to moisture and to pra::- ard on all larQe a: ma:h1nes. 7.C*)J vol:s l:nown insu!at,n(i mater;als ,sno systems 1,ca:ly ell '1YPS cf chemical con:am1:;ar.:s. a:i::l below. bu:lt a: hs! Pinsbr;~ us,ng have enabled West,nghouse to keep Ther- Tney have been p!cven 1:, laborawry :es'.s form-wound coils. up tr,!ougr tne 85 .. d,a- malastrc Jn!;ula!1on bener than any other described la~er a*nd t:y field service. meter frame size. This will mclu:::e pract1- msula1,on. cally all type F/A mac.h,nes. It 1s also now Processing Therma!2s1,c Epoxv insula:,or. a~*ailable on to!"!".! ma:~ines rz:e::l 13 6 kV. 01'1e bas,c feature of Thennalest*c Epo,::y i:-a:ludes va:uum-pressure 1mpre;1na:1or, o! Tt-.e,ma!as1,c Eo:rv ,s 2's::i ~-.a !a:;e c,r> fc,r!Tl- 1nsula1,or'I rs the use of mica in the g*o:.md tr,e c:>rnp:ete v-,ownd s~ator. s!ator co:!s as v,ounc co,:s fo, r!1,n;s l.i2f1!.1~2:turea a: t~e wall. No ether ma:enal C!l"1 e::.ual m,ca !,om w=:1 as c::il conr,e:::;ons. 11'1:S make~ 1: Buttalo Plar,t. the stan-,pornt of eiectr1c siren:;th. vol:age p;:ss,ble t:i give a:1 pa:ts c,f tne win::*:-;;s endural'1ce and relrabrlrty. the full efie:: cf tne high resin fill tha! 1s "Thermalistrc'" hH ma::e .an enviable name 11::hreved w:th the ,,acuum-pressure te:h-for nself cs sn ir.sulet;or.. It wa; )he fiist S.::,..'ventkss tpo,:y resins &re impregr.a1ed niQue. The coils are net de!ormed or real a:lvancemer.t in rns;;!.;t,:ir. 1:"l ever 20 in!o the m:c:a which his bee:, prep!i; :e::l s:*esse:j !her 1m~re;;na:,on. y~ars '.',hen rt w?. frr,t im:oou.:ej ,n 1 p,9 on a forrn-wour.d coil. Then with both on laroe turbine oer.era;ors. mio a:'ld resil'1 il'1 position. chemical re- Tr.e processes des:;,t>ed are 1ncse cl th~

                      \,\'es11ne,ouse be:;~1'110 use rt c,~. l~*Qe               ac,ion i, i1'1illared whr:h trans!orms the           Lt*ge Ro:a:,r.g t..;:-:-a*a:us D1v,s o1"11ri East   1 m.:~o*s in 1 ;~?,, It a 1rr.~al'1110 rcmimber             re-s,n imo a i.o!rd which locks and binds            P;~sbu*gh. P:ima,ily due 10 C!tierence, ,n- ,

that Therma:e11,:: insulat*on i, 1 ~em. the mrCl! into a cernpcs,1e mass. The result- tr.e size cf mc!o~s mal'1uia::tLr"e:l al tr,e not a material. As suc:i. r. is r,:it s:a1ic and in;i C1'1C produ::: tnen ta~es 11ovanta;ie of 6:.i~alo L5rce A: an: De Mo1or D,v1!- 1or..

..-- many 1rnproveme.'1:s in r-.s corr.oorients end processm;; have ~en r..1:ie s,1'1:e r1 was t~ cxce:iel'1! proc,enies cf both the m,ca 11nd the res,n. The outstandrnQ char11::1er-ioecrf,c processes .a*y rn m,nor de\a,:. Tne usentrai characterrs:,:s of tne rnsula1::,n kst used. is.1ci of the eoox.es is their txtremely ,,-.:em 1:e the ume.

MO:.rnbs,, U7t Svi:.*11~, tee""'~: D1:1 3170. oat*~ Jun*. 19E8

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          ...Westinghouse Sutor Coile                                                            1:il' e'">:: !u*:-is t: 1 ine s:ato! cods S'.e 1,rmly 1 ne ,nsu1a110:i 1mmeo,ately a:J3CE::"'! 10 tl"',t>                      t:,race~ to ..,..*.:ns:arid f:.Jll--...*o!~atie s~ar1s v.-,t!"\

co:oer :onou::!c~s 1s g~ne:a:1y tt-12~ \ ...'r'!1c~ a ser,es of 1ns:.;;3~e: s.u:-oo:~ r,n;s as wt:ir-ins;;!ates tne va,,ous turns ,r. t~e i::;i,; f:c-r. as. o,aces De~~*e~1; :o!i er,: 1u:r.:.. ,,..,.~::'1 ,n ea:!"'l c,1r.er. Tr.is 1s a very 1r."',~=*~a""! C3r! c~ ef!e:t f~~~: ari a*~:--.bJi.:r1: s~rL.c~ure a: tnese 1--:e 1ns,.da11:)"' s*r*ste~. one vv-.:~ f!e:u~~!!',' c:i*~.zs I~-: r."":.a:e~.2: u:-e-: as c t:ac~ b:-- 1s n::t G'":n 1:1e atti?~,t:on 1t ;:~serw*es. S!ncc rw~i* c::>d e:.: ~~~rs 1s a r::,n.v,,*c:-ver. p::,ly. the r.,aior,:y ol £: r.:c>:o,s are s:aneo estt>* fe:~ "*.,!1.:~ r.as ti:)tn res:i1er.:*; ar.:i e:ros~-the-i,ne. ?ne'e :s a c;:ss!od:t*,- 1ha~ ansJr:.e::~.- s~e'; frc.r-:te:,." 1rr:~:..:1s.e ty~e ..-,aves can t*E-1..1::s~:J en 1ne y,.*;n::ing 1 nes2 ""*'2Yt=S ~ft~* ,:.s~al;a~:c,r. of a!i c:)11£ a~= c:~oie-

                                                    ~* ~*-- :.. :;~. r:::::*: ~::.ess or;         tr:~ t~~r :ns;...-        t!C't") cf **.:=:;:*~g 2nd D'a:1r:g t:-1= ::i,..,~e:-

12!1:-ri. es~:-:ia*, .., t'1e tur:--is cf t."'e s:a::,r 1,c-r:s a*f r.--1.=:~ CP"td ir.su!cte-~. c:-:j !~e s~atcr co;:s nea~ the 1,ne 1e~1i.ir.a:s. is re a:, for 1~C!:?gi,a~*:>n. h the 11;:;r.1 o! :riese fa::s and tr,e ,;enera; V1cuum-Pretsure lrnprr,gnznion 1n:ii.:stry tre:i:::! to n,gner o~e~a:,n;i vclta;;es. TnE pre:r,eat~: s:atcr ,s lowe:e:: 1r.io the mica. y,*h,:n prcvices a pos:?1ye e:e::r1c va:uu-n oresS*Jre tan~. and the a,r evac:;- . t;.;rr.e! of ve,y ri1gn stre:-ig1r-,. 1s use:i as ate:: to aver*.- io*h' a:s::,h.11e- ;.-,ressure. Tr:e

                                                  ~urn rnsu!a~:on for ail cods r21=: , i.V and                             e:)01..- resin !S t~e1 1r.~rcc;.;ce:. v,h:!e r.;a1n*
                                                  !:':lY!:' fer tr-e l::ge! S!Ze ~:,~:.rs o~~ S:-7",a::e!                  !arr.. ~; t~e "a::;u:rt to a :ve: t~at co~-

s~ze iol:>tcrs. th:s 2:Jdit1~naf st:e:ig!;!_ wnere oi,:t,e;-, s~c~~!;;:s all ca:is of 1ne *.v,n:hr;. re:;u,re:. 1s c::i,a,ne:: t:y it*,e .use of er.amei ,ne \*a;::.;u~ ,s 1:ien release:: ar.o re::ila:e:l Pil.!S c:ou::iie oa::ron-g:2ss ccve*:n;i w:: ... .:':Osil,ve ;:::ess*Jre of se-.*e~a! 2:.T,:sor-iercs

ove* tne lie~:: :cs1r.. Follc\-.*1n; tnese ste:;s t'"=- s:a:or ,s re:-r:;,:ed. as sho..-::i in F:gure 2.

Slot ln1u*o1ron I lol,cc iopered W,cc Wropi,er

                                                     ,.,,,c;:,oer  A:,:,irec      ,n     for Srr.ooTh Jc,nt with Snee! Form l                        End Ta;:e lnJulaled II      Ccr.ou~tcr, I
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                                                                         -        -. * ~        ,~*~    -* I f E11ro Top,n; .for                                         [ad T11rn Leed lic,r.fcrce,r.enh                                     lr.1uict,on F.i; , Ty;:,*:1'. 1a:or co,: 1:-io ..... !~: c11rT.er.:1 cl              f ,;,. 2 1..Mt'!" 1r.-.=:re;r.!.1<on. 1ne 1a!or II fllr.tovtd from rru..;:1t1on.                                                            1r:., ur-:a. ar.d" ~*.a:.t~ 1n an eve:"! t:::n cur,ng.

Tne- m,::a:eOl.!S ~rcun::l 1ns..iia:,n;i ma1er,ats Tr,e nex~ st?:::> an t~e pr~cess ~al-:es place 1n e:e ac;,l,e:l as sr-:own ,r. delail ,n F,g 1. All a:, OYe'I. wr.ere tr;e resin 1s curej_

                                                 .ma~eri.cls use:: 2re des ;"'1E:1 to C~ bstn 1

Ir. ajj;~:or: ,~ ~~e 1rnoregn~t1on of t~e c-:,rn:,21,blc w1::1. an~ srle:c:e:l c::,m,::on,,n;s v.-:no1:1~ ~h-:: tra:ir.a sv~:e~ has be-~n b:.iilt of. tne CO:":'"'Plt~e 1r:sulat1~n s*ts~c-rn. **1r. 012:e** by t~e oCs:J*ot,on of e;:r:cx~' ,es:n

                                                                                                                           .:'10 sw!:se:iwee:: c'J:e 1n tne polyes:er 1e!t.

Wir.ding Stctor Tn,s 91v-::s ve'r h:,;:i str21f:h :ci the bra:;'.ng _ t..i tr-.e s:a*t c1 t~,e v.*in:1~0 oc,e~ct,on the s:ileTie. stator c:,:e c:,:,s,s1s cl i":1e- asse'."'".ble:l cu~:n,ri;s a:.a rEs~ra::11r.Q en:1 :,.ates ~t"','JS Dur,r.::i 1!":e r..a"l.1f2::u:e of the c:,.!s an::I p*;,v,.::1,n;; a mal(,rr,.;m cf a:cess,:lli11;- .::ur-in;, coil assembl;* of la:~e: s1.:e molC'.S The V't'i~01;;. cua'.:t.,- c~;:t,:,l prc:e::ures are use: c:.r:~1:""l:.;Ovsh.* .to mo~1t=:r the :,!"\ys,cai (f) fact t11at trie co1!S a,e-un1rnore;,na1e: a1 c,mens,oris ar.: e,e:::nca: in:e;;nty of tne tn1s ste;e prcv,::es eHe of 1:1s:al1a11:n. 1r.suta,:on.

-* -**-- . ___ .. -- - .. --*------~- ...---.- - *-- . . - -*- -- -*

Thermalastic Epoxy Insulation For urge Ac h'c:ois I. re'.~-.

                                                                                                                                                                                                                          -f;,1.* and cttier Mo:o,s* w*:-: Fer:-:-..
                                                                                                                                                                                                                           \\.ound C:.i!s - Scuirre*--cs;e. F~\~.

V. o.:nd Rc1::*. Srricrirc:,:.;s Ev11luttion and Ten Prcbf,im VoJuce Endur11nce 1 tiermalas:,c Eccxy msula:,::,:-i w2s aoo:::ed S,nce 1r.s:.J!a:,c'1 1n large ma:h,nes 1s E>-* as :.tancard for large s: m:::o:s onl*,* et:er pe:1ej 10 pe:iorrr. for aIon; Perro: o! 11r,,e. C.)mpiet,on of an eX'!ensr,,e e,*alua::on ar.d a 110:,a~e enourano:e tes: r.2s beer-: dev:se:. tesl pro~ram.:A desc:io1,c:-. cl some c! trlc lr, l~!S test sampie coil.s are prer:cre: a::: mo:e 1rnpona!"'l! 1es1~ folic\*.*s. c:o~necte: cs des::r,oed br tt1!? s'1o~-t;rn:: e;e::1:1~ tes!s. Electric Strength Since the i:.:r.:::a:ner.:.3! hm:::::,n cf ;r.s:.Jle- Eie:tn: s~rengu1 1s.evalu2:E: ,n Ce:*1!"": t'*,* a 1,on 1s !O v.*1ths12r.~ eiCHit s~re~s 1:-.e firs~ se,,es :i! brea~:iown les:s ioi ea:~. insu:, *

          ,eries of 1es1s en a:"'ly 1nsu;c:,on s,'s~e~ 1s                                                             t,c~ s-.*ste;;.. t.. groi.;::, oi s2~pie c:o:1s !or 10 oeierm1:1e n~ S;")D~-1,me e e::n: Si:"en;:r..                 1 e-a:~. s*,*sle::: 1s !e-s:ed a: variOU5 vo:~~;e Comple-te 1nsu!2-~r:! ::o:!s S'e u~':! fc-~ t~*ps                                                         leve1s 1or f11.ej t1m~ 1nle!""..-a:s W!"liCr""- ma)' De lf.'St.                                                                                                     c;,e- m:nut:". o~e r:c~r. onr wee,. O' rr.:~e.

2 1* c::n1n; averag:: **r,01:* _...*alues f::* u::- ft JS Oes,ra:>le tha! for O:"'il' :;.a::i:u!z~ v:.i1a;':" C1~:erc.n: t!r.-r~ pe!::i:$. a ..,:,l!?ge- e:"'.:ura""::-= class 1he average b'.t?cicdo..-.*n vo:,a;:e be 2s curve* is oeate:t S.;:11 a C:.Jrve 1s s*,o*,,:; zn h,gh as poss1ole. Howeve'._ It 1s essen:;al F,;i_.re 3. tr,at the values be exa:n,ne::l ar.::l ar.al*ae:i s1a1,s1,::;;lly. i11s the W=5:,r.;ihouse con:epl t,\u:h of trie_ data thus cb1a,ne::! ten::s to 1~a:_ us,r.g lhe pr1!i.:1pies c' s!a:1s.:!:.a! pl::,t 1r-. a s:ra:ght iine. One way of ioo~rng

          !:--,alys:s. the coi:s hav-e a t*:::aj::=:iw!'"i le-.-e:                                                    a~ SJ:~, oata 1s 10 estobiisr. an **ope~c:1ng weii a=ove tr1e 1es: ieve! 1::~ :r.=1\'l~..Jal cods.                                                        l~ve,*** a~c ex2rn1r..e ,-.ihert tne er.~a~:,!aH::

vo:Lage en:urance curve wtli 1nterse:1 th:s Tne,rr.aiast:c Epoxy insL:la:*::-: has tc:;, a **cp~ra!1r:,; lever*. Tne Tr,e:-malas~:c ti1su:;- higher ave~a:Je S'10:1-11m= eie:1r1~ s~re:.:1h t;o!i cu've 1nte~s-e:~s the ooe~at,r1; Sl!ess.

          ~nd 1s* rr1ore ;eo:-=,:,:..:~,b;e !~c!':'l coii*tO*.c""o:l                                                  lev:: 2t a 11rr,t- 1n ex:e~s                    o,    10~ yea~s. 1 :':-:"Se

- tr.an otrier insu:011on s-.,ste~s. are ,esi.Jlts cf Ia:,:i7a~~ry tes.:s o~ on1v ori: cf 1.ri:: o:9ra~,n? me:han:~rns tr.a~ a7ie:t insula11on an:i. tne*elcre. a*e no1 :::om::,iete ino,::a1,om o! a:tual ooera:,ng lt!e. 1-iow-eve:. sys1e~s 111a1 fail to g,,.e rnd1:::at::ins of sat,s!a:tory Irle tr; tnrs very f ..mdarnen.al tesi are no: ::ons,dere::l favo: a:.ly. t:,

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.: r-,01..:**s C tance 1c all c~ t~e~. ,....,.:r~.1.:;e .£:0 ~01.:*3 0 0 J C* 0 Thermel Enduranca Ter..ce~ ature 1s -...*.r::~;.i a::ec\~a as ce,i*~ .., .:, 0 cr,,e ot tr;e l1l":'"o1t1r:; fa:::;:s ,:1 1r.s~la~ .:;!'i 1.fe. : " ~-~-*s I : i ... =s To .~e!err:n1ne tt":e ab1iity of 11:su!a:10!"! 1:, J" *::,*~*s

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s~a:.o :.:o unC'?r t~er~a! aging. !?st:ng *s :or.e 1 :- =aws by ioltov.nng L~e Das:c cur.c:eot c; fi..::"'*C*

             ;ional    ,est1r.;;  c1.;tl1r.e:i in It== 275.                                                   :)

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                                                                                                          .!; n:::rs                                          C                              0 T:":is *s the **r.::~c~:ii.e** tvi:!'e o~ ~=st.;'g                                               7 :a rS                                                                        a w*r,erE:r. sr.;a::. :o:'T"~*ete coils a~e rr-:::e, *~                                      : :, :a,s                                                                         c; acc~r:~nce y.,*;~r-, a::~ai pr!)cesses :"':'1-0                                                'J                             0                             *.J : - : :

o!cye.: in the rrsu!at::;n s*,,slem beir.;J *val* :1. '"'O ... rS + 7S +~: 5 ua!e~. i~ese ~o:!s a'"e t!°"e:i !"':"O"..Jr.tei:: .n sl:;~s .:; ,. c- ... rs or. a tr::)iOre::f" anj the iea:s ~:::n.:g'"':! ~ut :~ i :a,s

                                                                                                          ~: =a .. s an acoropria:: fash:on as snown ,n F1;::~e 9 so tr,~H e!ec~~.:al tes:s czn te made. Triese                       D,r.111,t:::                 :;                         53                   C                               0 motore~es are u*.en subje=1c:! to a c,,ch?                          r-!10                     : ' ~=:.:rs                   es                   0                               0
                                                                                                          ,: ~01.rs                     85                   0                               0 of oven agin;. mecha:"\1cal v1brat1or>.

hum1d1f1ca:1on ano elecwcal test. Foilow,r,g 7 cavs :5 0 0 0 0 th,s. :t-e cycle is repealed and the nur.-:!ler of cyc1es to.faJlure 1s recorded .

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3'-"C-56 F10 10 n-t'!1""',! *nC:1..:1i,.,c, o! ,r.r-.:11~10'"1 SY1!e.~, for F~ 9. * ~o:oa:-.,** i..*1..d !.:r ~u:;:"I; tr-*ni"".1* '"" ro~1:."; !"'!".~'\; ... u ~ur.d 1n ,-o:c*,~u ,n ::co,c,n:1 duuir,,c* of rn1u.111cn 1ys.:1r-.1. ,.,,u,, :ttE 2-;~ ,:--:i-:-J . . 01, ,)IC,Of 1tl~J. This 1s a cor:-:oarat1ve te;t only. There are ai;ia,r,st tempera:ure on !he horizontal axis. no s:andard values lor tl*,e test cc,n::,t,o;,s As ca~ te seen. tr.e life of all systerr:s de* or numCler cf c*;cles or the hour~ of ai;;,r"~ creases w,th increased \i!~C'e'.a:ure. Tri'e that I system s!"iould w:ths:ar:'.'.!. If ,s l:.;.oHn. **pre. 7herma 1 .?St::** :urv'3 ,s t~e Ca!3 ~b-h:,*~,er. tr.a: !or m=:e tr.an 30 years *ctaH L31r:e:1 en t~~ c:2~s 3 1ns:.;l.~t:c,n svs!e:11 B insula:1on has Deer. 1n serv,ce ano that use:, c:,cr to 1~:"rrna1ast;:::. l:i co:n~e 11 has oedor:-;;e:: sa:,s!a:torily. The r::,c-:e- -r!""-e1i03lasl1C £::xv svs~e~. a c*...;rve *s c:::- cure 1s. lt-.e,e!cre. to ccrn=are l'ew or cro- lJl!ieo Ytwn,cn *s sr-.1ne.: ove~ O'"' 1r~ ~i-i;,*:::,a1 pcs.e-d Svsle~s ""1t~, the c:oer serv1:e- s:a:e :,v aoo~:.'"*S'.C. in:s 1~ 1:5~:f 1n.:,,:ares pio .. en svs:e,r.*s. F,;;ure 10 s:.o ... s tt-e C.ita a t11;!i OtOe' c! :rie:rnal rese~ve:* 1n , ner* co:a,neo b\* such ?es:s.*Hou*s cf tile 1s r.ia:o~~.: Eo~rv :~su1at1;:>n. This svstem p1011~0 1o~ar11:-tm,caltv on the ve<11:al aI1S cual1i.es !or c,ass F thermal rat,n;i.

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                                                                                                                                                                          ~',ound Co,,s - Scu*nel-Ca:;e. PA~~.
                                                                                                                                                                          \'t c;.;;1d R_,t~r. s ..*~::-:rcnc:.:s Winding Rec?,r!I                                                         3. ir. l!"':? case cf v,.::-::s:,rea:j :ar:""'.a.;e :0-Tr-1~ ~~anva:.:.::at:~r. c' T!":e~:-;;ol.:s:.: £;-~xv                    volv.:.g a r.urnb:?r cf cc,:s. 3 c:i,-:i =!ere*

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                                 ._-.:nc;r.g rC3:!S a:::: 1!"ie cesirab1i;r 1* c~                       s;.::="':'1 mat..e rt nect1ssa:-"* to rc!L;r~ !'"'e c~~:ey1r.g s~i!"e co!:s.                                                s~ct:r 1() :r--,,e fa::v:{::~ c:ta:~ ~'"':! ::r*;,r:a' p~::ess1i"';1. On 2. t~e.:<~o*.-..*.--: ~ ~s:;. ; ..... s : :!-,

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                                ;:a::h,rg rr.e:r.od.

2. !r. the re:-note ;:~ss:bi!.:-y of c:::l fc,:ure wi:i1iti !he s1ct. 1t is r.ot p'2:t1cal !~ ~::,!o:e co,is by conven:ional rnear.s. Tre ~erv precessing of complete 1rr.;;~egna11c:-: ar,d bc,,.::iing which 1r.sures a fa!lure-!ree ::c1I also ma~es it 1mpra::,cal to hh e"ou;;r1

                             . cc,!s to repiace both top and bor::irn coil sices of a darnage:j coil.

To: rm/ace a carr.age::l coil m any rnac"i,r:e. it h2s always been.necessary 10 lit: at ieast a !u:I threw of co,!s to get tne neN coil ,n. Oi..:te ofter., th,s cc:era:*on r!:si.:l:s 1n ca.'Tl-a1,e :o other coils. ir,erefo::. wheri s::a:e cci:!s are cor.side:e:i Cesaa=ie. 1t r.as been sta.n::ard :::raci,ce to carry a: least ~~ or ii of a se: !O reo~ace or.e er t1.:o dam.?ge~ cci:s. Wes:ir,ghouse has devclcped a technique o! coil re;:,!acement, for use on rncicrs

                             . m:i:-:u!ac:ured at East ?,::sburg"'I. which rr,ai:es it unnecessary to d:sturb ar.y coils e~:e::t the da:;-,a;;ed :o,I or. at r:-:os:. 11*.e c:he, coil ,n the sa;;-,e siot.

For ihermalast1c Eo::rv ms'.J!a:ed r:iact-.,r.es. e standard reoa1r kit can be suopl1e:I 1n-clud1no six ha:f cods s*J1:able for reolac,ng either top or bottom si:ies of the*cc,1. Also inc!'.Jdej are the ne,;essa*y rr,atc:rra's. tools anc 1r,st:uc:,cns f::,r rep!a::::r,g da:-na;ied co,!s. Ccmple:e s;:;a*e ine*malast,: ::cxy 1rsJ!a~ed cod, a:e n::t f'.,;~r. s.hed t,:;r :,. . e:se 1 I l

- ---- . .--. __ ,,~---*-,*-**-*-*--** .. - .:. ---** -. ---*

.                                                                                                                                                                                                                        NAW-3615
              *. - ---- **-**.*-~*:=-                                                                                                                             --*.    *- - ----
   **                                                                            Water Reactor                                                                                                 N:.c!ear Cc.T.1r.erclal Westinghouse                                                                                                                                                        O;eralio."lS Oivis;cn Electric_ Corporation                                Divisions

,_ - - - -- - -- -- * : ~-:" :--:- - ~- - - ~- -- - ' -'--*=-c.-c =--->-= __,_,,_- - =--- - ---- * --- -= .___:- -_ - -= -* _-__ _-_-:- .:::.*-=- Box3S.S

                                                                                                                                                             . -- - *-------- ---- -----:_:-

Pittsbu:,eh P-~nn:iy!vania 15230- --------- -- -- **

                               ._ ... * :* __ ~     .

_. :_*. )\-;<;c \~ . - . .-,- r.i~~- f: C., Brown*: Jr., Senior.-Vice- President October 30, 1930. Vfrgini~ Electric and Power Company* P.O. Box 26666. Ric~~ond, YA 23261

Dear 'f-~r. Bro\'m:

VIRGHHA ELECTRIC AtlD POHER COi*!PANY

              --   :-: .     . _;                                                               NORTH ANNA POHER STATIOi{
                      - . ***,-*.:. :*:=::

NUREG-0588 Eguip~ent Qualifi~ation

.- .. \- *~:~ :*: *:. ., .' .

Referenc*e :.: NCW-1315 ** * '< :: _ This- is to confim infonnation \'1hich has been provided to Mr. R. Newcomb in . ~ orde*r. to provide additional information in response to your req!Jest of the referenced letter as \*tell as other telephone requests by Mr. R. Ne\*1comb *

  ~;a-~r;~~ii'ut~bri'!;,:c~anf';:~irI~:7~::~;:a:t:£                                                                    ::::h 0
  '.,?-,1//r;\ Thlsf                                                     s~re*co~:nended radiation.

for *u*si{ with.- tffe- Hes ti nghou s<{supp1 i ed - exposu ~e. t~S~ing is. ~va Cha"i-"g j iah1e ,;,/. {rig *'and\\~:-:-

  ' R~~~~;             tfj~jr~f:f~l~1:~r&~~~~BT~Js~1~,~~~{8'~~!( ~:+\t':'.~P!!~~,,~:w*:y:i:i:<rgf'E~'y~;r~;;:..
   - .* *. ch~~>~~--'~{~-~~--grease                                                ,s* rec~~~nde~--f6~~-~~J -~ith th2 Westinghouse supp1\ed __

LHSI.pu~p motors *. Per 6uf telephone conversation with M~~ R. Newcomb, Vepco has obtained"radiation resistanc~ testing information for this grease~ ' : : ... :

_Th~--l:le--;\~i~gh-~use suppl iel d;*,~-;~i'rig. Pump *mo.to-~~- a*re cap~ble *o{ ,.,;ithsta*nding the ..

                   .. temperafure.:time: profil'e, _ tr~i\s~itted by° the '~cfe_rence~ letter*~:-.- The reduction.-

ori ~ualifi~d life du~ to operatiri~,thfough the* transient is about one ~onth.

The beari~g~ of the non-operating charging pumps can alio withstand the refer~nced transient~'. The bearings of the operating charging pump will experience an op~r-ating temp~iat~re in excess of the allowable and thus cannot be assumed, based.

upon cifrrently available information to with~tand the transient. He are revie\*Jing,

                         \-tith our motor manufacturing division, means for reducing the conserva ti sr.1 in the allowable operating temperat~re.
      '         - *** '**-*-"'" . . ******-*-"** -.--...- * ** *.u~-----**~*--*** ~--****-* .. _.... __...,., __,_...._..~-**,-"~ *

~ - I . *_ *. . - 1- , *

                                                                                *--            Seal- Water Cooling PuQpS Information 1r1as requested relative to the capability of t.~e Westinghouse supplied-charging pumps to operate without seal water cooling due to failure at the seal*

water cooling pumps. Hith the pumped fluid temperature less thanll5°F, oper-- ation without seal water cooling is acceptable. Since your pumped fluid tem-perature exceedi 170°F> we are investigating the resultant failure mechanism at R. Newcomb's request. Surry Puiilp Motor Insulation The motor insulatio:-i for the charging pumps at Surry> Motor Shop Order Nu;;1ber 68Fl3318 is ther.noe1astic epoxy \*mund and therefore is* covered by \*!CAP-8754, Section 5-2. The <sc:.fety injection pump motors appear to have been re\*mund and*_ thus cannot be confi rwed to be covered by HCAP-8754. *

             .Auxiliary Oil Pump Motor The /l.uxili~ry Oil Pu;-;1p Motor is not required for Class 1E operation of the Charging Pu:nps.

Should you have any questions on this matter, please call.

..**>~:t,,-rfNJir1)_ttf{1.
               .    : .. - -*.-       .;._ - * "2 *

r :.r*_

              /rec-. **                                  *" *..

attadunent- *- ~- ..

                 *               *    * .                    -     *   ...,_A

s~* :-Srown~**"jc-

            *----*t...........    **- ........ . j t-1~-~                     _

cc: H. R. Carh:right, lL--*_:.:_ R. B. Bradbury, ll th

I 4 _-

                            ' .*                                                   \_)                                                                   )

I:.c . . ' I I *

                              -     - *--      -    -                                  -- -*- - --- - *----   -*-----TABLE 1~ -~------~~------~- -- ------

I I * *

                                                                                                                                                             -- - - *-- -   . ----~-*  -
                                                                                                                                                                                         . -*-* - -- f I

I

 *---          -*-*-*--:-:**---.-~*::-:*.-.:.~.:~~-*:-**                                  ---*---.'... -*      **-********--*-***                                        *

I
Premium Grade, to:rros*for( an*d**oxi dation** Inhi bited:Minefa-LBase.T.u.tbin.e _OJl?:!.__*:::=*:::.~------ -\

                                                                                .                                                                                                                    i II Radiation Brand N.am~                                                        ..       Viscositl_                          Exposure limit**~
                                                                                                                                                                    .       7
                  - Exxon Teresstic-46                                                                             200 SUS@l00°F                              1. 4  X  10 Rad * *

Reference:

EPRI report NP-1447 Vols. 1 & *2*,....Project 893-1, July 1980. Tests

performed by Westinghouse R&D. Criti ca 1 breakdown of oil \*mul cl be expected *

                       *by 2 X 1o8 Rad *
              . ~values presented for the Radiation Exposure Limit are the highest documented
          ,,..-*.* exposure levels obtained by th!:! author.tor.cl.ate, based on a non-conclusive E,fiJtfi~~!)J:tffj_'.)f,f}~);'i>> *.                                                                         >    .     ..       >: ;             > '"       t         *. . . .
                    .- .*...*-~:.: -... -~.. < e*;* ." . . -;.* .. : *:. **:*

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30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

**                   COMPONENT TER Item No.:

TER Category: Des<?ription: 63 Ila 450V MOTOR CONTROL CENTERS - SUPPLY POWER TO SAFETY SYSTEM Manufacturer,- Model: CUTLER-~R, Model UNITROL Tag No ( s) * : 2-Hl-2S ,N, 2-Jl-2E, W Worksheet No(s) .: 6-23 to 6-26 QDR No.: 5437- 78-01 Location: AB-13B DISCREPANCY Qualification was not established*for this* item because the review package (QDR) was not provided .

RESPONSE

The QDR listed under COMPONENT was prepared subsequent

                  . to submittal of the SER and 90...;.day Rev~ 4 responses. The *

QDR establishes qualification, and is being submitted at this time.

30 DAY RESPONSE TO SER&* TER ELECTRICAL EQUIPMENT ENVIRONY~NTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category:

Description:

72 IIa VALVE OPERATORS FOR CONTROL AND RELAY ROOM CHILLED WATER Manufacturer,- Model: Limitorque SMB-000 Tag No(s) .: MOV-PG-107A,B, and C Worksheet No(s) .: 6-84, 85, and 86 QDR No.: 5437-66-01 Location: SB-9B DISCREPANCY The peak accident temperature exceeds the qualified peak temperature, as defined on the worksheets.

RESPONSE

The equipment in this item should be assigned to TER Category IIIa, Equipment Exempt from Qualification, because alternate backup equipment not affected by a Surry 2 Turbine Building HELB can cool the control room. The following statement, from section 7.4.2 of the Rev. 4 90-day response, 1s applicable: The control room habitability equipment located in Unit No. 1 Service Building Machinery room can provide the function. This can be accomp-lished by opening manual.cross-connect valves in the chilled water supply and return headers. These valves are located in the cable spreading area and are accessible from the control room without being exposed to the turbine building environment. Further discussion of this item is attached.

ATTACHMENT FOR SURRY 2 ITEM 72 VALVE OPERATORS FOR CONTROL AND RELAY ROOM CHILLED WATER The Rev. 3 worksheets (dated February 1, 1981) for these operators state that "we are presently determining what the pressure and temperature wi.11 be. resulting from a postulated Unit 2 Turbine Building HELB." The worksheets also provided essentially the_ same description of _backup equipi:nent availa-bility that is included in the Rev. 4 (August, 1982) conclu-sions section. Even though the backup equipment is available, the intent was to_qualify the operators if possible. After submittal of the 90-day _Rev. 3 response,.the pipe break calculation for the room containing these valve operators was completed, yielding the 310°F temperature for the first 30 minutes shown in the Rev. 4 worksheets. This temperature is clearly above the qualification limits for Limitorque SMB-000 operators. The Errata sheet for Section 7 of the REv. 4 90-day response deleted these operators from the list of control room habitability equipment for which satisfactory backup equipment is available. We have re~reviewed this concern and.conclude *that in fact the discussion of backup equipment availability does apply to these ~alve operators. Accordingly they are exempt from qualification and will be deleted from the Master List .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 73 TER Category: II~

Description:

1000.VOLT, CROSS LINKED POLYETHYLENE INSULATED CABLES Manufacturer, *Model: Cerro Wire & Cable Company Tag No(s) .: Spec. Nos: NUS-325;SN-246~NUS-362~SN~l246,NUS~381C, SN-446, and NU~-381E,s~-1447 . Worksheet No(s) .: 6-37, 6-42a, 6-38, 6-3_9 QDR No.: 5437-134-01 Location: RC-3A DISCREPANCY (See.TER Item No. 44)

RESPONSE

(See TER Item No. 44)

,,u., 30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category:

Description:

116 Ila PRESSURE TRANSMITTER FOR POST ACCIDENT MONITORING * (TMI ITEM) Manufacturer, Model: ROSEMOUNT., INC., Model #1152AP7A22PB Tag No(s) .: PT-LM-201A, B Worksheet No(s).: TMI 1, 2 QDR No. : 5 4 37-2-41-01 Location: Inside Containment ,

RC-3A DISCREPANCY Qualification was not established for* this item because the review package (QDR) was not provided.

RESPONSE

( The.QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev. 4 responses. The

        * -QDR establishes qualification, and is being submitted at this time

30 DAY RESPONSE TO SER &*TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 118 TER Category: Ila

Description:

LEVEL TRANSMITTER FOR CONTAINMENT SUMP.LEVEL (TMI ITEM) Manufacturer,*Model: GEMS, Model XM54854, XM54853 Tag No(s) .: LT-RS-251A, B Worksheet No(s) .: TMI, 30, 31 QDR No.: future Location: RC-3A DISCREPANCY This is a new equipment item for TMI purposes.

RESPONSE

Qualification testing was recently completed for this item, but the qualification test report is not yet

available. We continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise its capability for qualification .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COM.PON ENT TER Item No.:

TER Category:

Description:

119 IIa LEVEL TRANSMITTER FOR RC SUMP WATER LEVEL (TMI ITEM) Manufacturer, Model: GEMS, Model XM54854 Tag No(s).: LT-DA-210A, B Worksheet No(s) .: (TMI) 5, 6 QDR No. : future-Location: RE-27B DISCREPANCY This is a new equipment item for TMI purposes.

RESPONSE

Qualification testing was recently cornplet.ecl for this item, but the qualification test report is; nrit'y~t available. We

 .continue to believe that the equipment is the best available for the purpose, and have no knowledge of type test failures that would compromise its capability.

30 DAY RESPONSE TO SER & TER. ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 127 TER Category: IIa

Description:

LIMIT SWITCHES (TMI ITEM) Manufactureri Model: GORDOS, Model MR8901 Tag No(s) .: ZS-SS-200Al, 200A2, Bl, B2 Worksheet No(s) .: TMI Numerous QDR No.: 5437-245-01 Location: RC-3A DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Rev~ 4 respons~. !The QDR establishes qualification, and is being submitted at this time .

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 128 TER Category: Ila

Description:

LIMIT SWITCHES (TMI ITEM) Manufacturer, Model: GORDOS, Model MR8901 Tag No {s) ,. : Numerous Worksheet No(s) .: (TMI) Numerous QDR No.: 5437-245-01 Location: RC-3A DISCREPANCY Qualification was not established for this item because the review package (QDR) was not provided.

RESPONSE

The*QDR listed under COMPONENT was prepared subsequent to submittal -of the SER and 90-day Rev. 4 responses. The

*QDR establishes qualification, and is *being submitted at this time.

... 30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 129 TER Category: IIa

Description:

LIMIT SWITCH (TMI ITEM) Manufacturer, Model: GORDOS Model MR8901 Tag No(s).: Numerous Worksheet No(s) .: (TMI) Numerous QDR No.: 5437-245-01 Location: RC-3A DISCREPANCY Qualification was not established for this item because the review packag~ (QDR) was not provided.

RESPONSE

The QDR listed under COMPONENT was prepared subsequent to submittal of the SER and 90-day Re~. 4 responses. The QDR establishes qualification, and is being submitted at this time .

TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT SURRY POWER STATION UNITS 1 AND 2

30-DA Y RESPONSE TO NRC LETTER OF JANUARY 26, 1983 MARCH 9, 1983 ATTACHMENT 6 UNIT 2: RESPONSE TO NRC CATEGORY II.B EQUIPMENT NOT QUALIFIED TER ITEMS 2

16

30 DAY RESPONSE TO SER&* TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2

COMPONENT TER Item No.:

TER Category: 2 IIb

Description:

RCS WIDE RANGE PRESSURE TRANSMITTERS (PAM) Manufacturer, Model: Rosemount 1153D Tag No(s) .: PT-2402, PT-RC-2402-1 Worksheet No (s).: 6-273, 6-274 QDR No.: future Location: RC-3B DISCREPANCY This is PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. The TER classified the equipment in Category IIb, Equipment Not Qualified.

RESPONSE

Qualified replacement instrumentation will be installed during the outage planned to begin on May 1, 1983, as com-mitted in VEPCO letter to the NRC serial number 085A dated March 2, 1983. In the interim, Justification for Continued Operation is provided in VEPCO letter to the NRC serial number 085 dated February 18, 1983. Additional information was submitted by letter number 0858 dated March 9,1983 .

30 DAY RESPONSE TO SER & TER ELECT.RICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 16 TER Category: IIb

Description:

SG WIDE RANGE LEVEL TRANSMITTERS (PAM)

    .Manufacturer,- Model,: Rosemount 1153A Tag No(s) .:   LT-2477, 2487, and 2497 Worksheet No(s) .:

6-275, 6-276, 6-277 QDR No. : None Location: RC-3B DISCREPANCY This is PAM equipment which was under review at the time of the 90-day Rev. 4 submittal. The TER cla~sified the equipment in Category IIb, Equipment Not Qualified._

RESPONSE

Justification for Continued Operation is provided in VEPCO letter to the NRC serial number 085 *dated February 18, 1983 .

                    -TECHNICAL EVALUATION REPORTS ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL. EQUIPMENT SURRY POWER STATION UNITS 1- AND 2 30-DAY RESPONSE TO*

NRC LETTER OF JANUARY 26, 1983 MARCH 9, 1983 ATTACHMENT 7 UNITS* l AND 2: RE-REVIEW OF CATEGORY III.A EQUIPMENT EXEMPT FROM QUALIFICATION TER ITEMS UNIT l: 40 UNIT 2: l 07

30 DAY RESPONSE TO SER & TER ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 1 COMPONENT TER Item No.: 40 TER Category: IIIa

Description:

600 VOLT POWER CABLE Manufacturer, Model: Kaiser Aluminum and Chemical Sales, XLPE/Neo"Qrene Tag No(s) .: Spec. Nos: NUS-225, SN-251; NUS-365A, SN-1251 Worksheet No(s) .: 6-48 & 6-49 QDR No.: 5437-40-01 Location: AB-2B, AB-2C, AB-45 and SFGD-1 DISCREPANCY Equipment was deleted from the Master List based on Licensee's field test verification (special test 104) that these cables have not been used in safety related application.

RESPONSE

During Surry Site records search on March 5, 1983 it was discovered that six 600 volt, XLPE Kaiser cables were used in Unit No. 1. The qualification of this cable is established, using similarity as the basis, and a summary is attached with this TER item no. 40. We are preparing a complete review package to reflect the qualification of this cable.* This equipment should be classified in Category Ia, "Equipm~nt Qualified".!:>ased on the attached qualification summary.

ATTACHMENT TOTER ITEM NO. 40

                               . VEPCO SURRY UNIT NO. 1 QUALIFICATION OF KAISER, 600 VOLTS, XLPE INSULATED CABLES During the Surry site records search for cable identification on March 5, 1983, it was discovered that 11 Kaiser 600 Volt, XLPE cables were used (6 in Unit No. 1 and 5 in Unit No. 2). A breakdown, by unit, of the safety related equipment* (listed on the master list) for which these cables are used is as follows:

Surry Unit No. 1 Equipment Tag No. Cable No. Location l-VS-F-8B 1JlOPL214 AB-45 SOV-VG-109B 1VB350 AB-2B 1-SI-P-lA 1H3PL1 SFGD-1 1-SI-P-lB 1J3PL1 SFGD-1 l-RS-P-2A 1H7PL1 SFGD-1 l-RS-P-2B 1J8PL1 SFGD-1 Surry Unit No. 2 Equipment Tag No. Cable No. Location 2-CH-P-lB 2J5PH1 AB-2C 2-RS-P-2A 2H7PL1 SFGD-1 2-RS-P-2B 2J8PL1 SFGD-1 2-SI-P-lA 2H3PL1 SFGD-1 2-SI-P-lB 2J3PL1 SFGD-1 The above review indicates that Kaiser cables are used for redu~dant equipment in four zones whose environmental parameters are as follows: Total Radiation Zone Dose HELB Conditions 6

1. AB-2B 5.0 x 10 f:ads 120-205°F - 20 min, 205-120°F - 40 min

2. AB-2C 1.08 x 19 Rads 120-140°F - 20 min, 140-120°F - 40 min

3. AB-45 3.8 x 10 Rads 120-125°F - 20 min, 125-120°F 6 0 .

4. SFGD-1 8.0 x 10 Rads 120 F (normal ambient)

The highest radiation level to which the cables could be subjected during a LOCA is 7 1.08 x 10 Rads, and for temperature profile would be 205°F for 20 minutes during

HELB conditions. There is no steam or LOCA (chemical spray) environment applicable to any of the above listed zones. JUSTIFICATION There is no qualification report available for the above cables; however we are preparing a qualification review package, using similarity as the basis. The QDR Nos. for Kaiser cables are QDR-5437-40-01 for Unit No. 1 and QDR-5437-139-01 for Unit No. 2.

ANALYSIS We are qualifying these cables based on several leading .vendor test reports, E.PRI finc;1.l
repor.t no. EPRI-NP-1558 project 890-1, dated Sept. 1980, Table C-1 in DOR Guidelines, and IEEE transaction paper, Vol. PAS-88, No. 5, May, 1969 for "Insulations and Jackets for Control and Power Cables in Thermal Reactor Nuclear *Generating Stations/'

i. Per Table C-1 of DOR Guidelines; the threshold value of cross-linked p~lyethylene is 1 x 10 7 rads. .

ii. Per IEEE Paper the cross-linked (filled and non-filled) polyethylene cables 8

               . are categorized in Class 3 radiation level which is 8.8 x 10 rads. These XLPE cables are recommended for nuclear power plarit applications ..

iii. The leading vendors like Okonite, Continental, Cerro, and Raychem have 8 qualified XLPE insulated cables for 2.0 x 10 rads irr~spective it is chemically or irradiationally cross-linked. Considering the above facts, these cables are concluded to be qualified for at least 7 1.08 x 10 rads which is about one twentieth the dose to which XLPE ~able has been qualified by all other available sources. These cables will not be subjected to either steam or LOCA (chemical spray) environment. The relatively low .temperature profile during HELB conditions, 205°F for less than one hour, will have little or no effect on the life of the cable. Hence, these cables are concluded to be qualified for the subject environment conditions.

30 DAY RESPONSE.TO SER & TER . ELECTRICAL EQUIPMENT ENVIRONMENTAL QUALIFICATION SURRY 2 COMPONENT TER Item No.: 107 TER Category: IIIa

Description:

600 VOLT POWER CABLE Manufacturer, Model: Kaiser Aluminum and Chemical Sales, XLPE/Neoprene Tag No(s).: Spec. Nos: NUS-225, SN-251; NUS-365A, SN-1251 Worksheet No(s) .: 6-48 & 6-49 QDR No.: 5437-139-01 Location: AB-2B,_AB-2C, AB-45 and SFGD-1 DISCREPANCY Equipment was deleted from the Master List based on Licensee's field test verification (special test 104) that these cables have not been used in safety related application. RESPONSE-During Surry Site records search on March 5, 1983 it was discovered that five 600. *volt, XLPE Kaiser cables were used in Unit No. 2. The qualification of this cable is established# us1ng similarity as the basis, and a summary is attached.* We are preparing a complete review package to reflect the qualification .of this cable. This equipment should be classified in Category Ia, "Equipment Qualified" based on.the attached qualification summary.

ATTACHMENT TOTER ITEM NO. 107 VEPCO SURRY UNIT NO. 1 .

:*-*****---**-***----*-QUALIFICATION _oF KAISER, 600 _voL TS_,_xLPE_ INS.ULA TED c-~~~~~-- **-****-* -*-*--*-- -*--------

During the* Surry site records search for cable identification on March 5, 1983, it was discovered that 11 Kaiser 600 Volt, XLPE cables were used (6 in Unit No. 1 and 5 in Unit No. 2). A breakdown, by unit, of the safety related equipment* (listed on the.- master list) for which these cables are used is as follows: Surry Unit No. 1 Equipment Tag No. Cable No. Location l-VS-F-8B 1JlOPL214 AB-45 SOV-VG-109B 1VB350 AB-2B 1-51-P-lA 1H3PL1 SFGD,...l 1-51-P-lB 1J3PL1 SFGD-1 l-RS-P.:.2A 1H7PL1 SFGD-1 1-RS-P-2B 1J8PL1 SFGD-1 Surry Unit No. 2 Equipment Tag No. Cable No. Location 2-CH-P-lB 2J5PH1 AB-2C 2-RS-P-2A 2H7PL1 SFGD-1 2-RS-P~2B 2J8PL1 SFGD-1 2-SI-P-lA 2H3PL1 SFGD-1 2-SI-P-lB 2J3PL1 SFGD-1 The above review indicates that Kaiser cables are used for redundant equipment in four zones whose environmental parameters are as follows: Total Radiat.ion Zone Dose HELB Conditions 6

1. AB-2B 5.0 x 10 fads 120-205°F - 20* min, 205-120°F - 40 min 2*. AB-2C 1.08 x 19 Rads 120-140°F - 20 min, 140-120°F - 40 min

3. AB-45 3.8 x 10 Rads; 120-125°F - 20 min, 125-120°F

6

4. SFGD-1 8.0 x 10 Rads 120 0 F (normal ambient

                                                                                                                                              .            )

The highest radiation level to which the cables could-be subjected during a. LOCA is 7 1.08 x 10 Rads, and for temperature profile would be 205°F for 20 minutes during

                                                                 "'                                                   .   ~----.           - ******~---------......-------*'"'*'"" -- ......... _____ ... .............. :
                                                                                                                                                                                                         ~                 -:*

HELB conditions. There is no steam or LOCA (chemical spray) environment applicable to any of the above listed zones. JUSTIFICATION There is no qualification report available for the above cables; however we are preparing a qualification review package, using similarity as the basis. The QDR Nos. for Kaiser cables are QDR-5437-40-01 for Unit No. 1 and QDR-5437-139-01 for Unit No. 2. ANALYSIS We are qualifying these cables based on several leading vendor test reports, EPRI final report no. EPRI-NP-1558 project 890-1, dated Sept. 1980, Table C-1 in DO~ Guidelines, and IEEE transaction paper, Vol. PAS-88, No. 5, May, 1969 for "Insulations and Jackets for Control and Power* Cables in Thermal Reactor Nuclear Generating Stations."

i. Per Table C-1 of DOR Guidelines,: the threshold value of cross-linked polyethylene is 1 x 10 7 rads.

ii. Per IEEE Paper the cross-linked (filled and non-filled) polyethylene cables 8 are categorized in Class 3 radiation level which is 8.8 x 10 rads. These XLPE cables are recommended for nuclear power plant applications. iii. The leading vendors like Okonite, Continental, Cerro, and Raychem have 8 qualified XLPE insulated cable; for 2.0 x 10 rads irrespective it is chemically or irradiationally cross-linked. Considering the above facts, these cables are concluded to be qualified for at least 7 1.08 x 10 rads which is about one twentieth the dose to which XLPE cable has been qualified by all other available sources. These cables will not be subjected to either steam or LOCA (chemical spray) environment. The relatively low temperature profile during HELB conditions, 205°F

for less than one hour, will have little or no effect on the life of the cable. Hence, these cables are concluded to-be qualified for the subject environment conditions.

 -=---c----- _--.- - ___ . _---                       -- --------**-
                                                                          ......... -- ............ ----1,.. _____ ._..,_ .. __
                                                                                                                                ,.,.________ -   . . - __, *-*-* -~*---- - --- ----- *-**** * * - - - - * ~ - - -
                                                                                                                                                                                                                                        -    ~

910 CLOPPER ROAD GAITHERSBURG. MARYLAND 20878 C:301 I 258-6000 N08.l-V01-412 September 23, 1982 File 4.8 Mr. A. L. Parrish, III Manager, Multiple Power Projects Virginia Electric and Power Co. P.O. Box 564 Richmond, Virginia 23204 Attention: J.E. Wroniewicz

Subject:

Surry Unit 1 Transmittal of Final Rev. 1 of Qualification Review Package

Dear Mr. Parrish:

Transmitted herewith is one (1) copy of the final signed-off Revision No. 1 of the qualification document review package QDR-5437-47-01 Continental Wire & Cable Company 600V and 1000V Cables with Silicone Rubber Insulation & Hypalon Jacket dated 9/21/82 for your permanent files. All VEPCO's comments have been resolved and incorporated along with additional NUS com-ments in this revision. Revised sheet numbers are listed in Record of Revisions Table. Our review for the above equipment is complete and the package is closed. The original master file with one additional copy shall be turned over to you at any time you advise. If you have any questions, please call. Very truly yours, N*K-G~ R. C. Wilson Project Manager cc: N. Garg*, NUS w /enc. _, A. Ballav, NUS w/enc. B. J. Reckman, NUS w/o enc. J. L. Renehan, NUS w/o enc.

s. B. Gerges, NUS w/o enc.

0 A Halliburton Company}}

ML18130A387

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