ML18113A704

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Environ Testing of Instr Cable Was Conducted to Conform W/Requirements Established by Subj Util.Cable Subjected to Thermal Aging & Radiat Exposure Prior to Test Simulating LOCA & MSLB Accident Conditions.Cables Function as Intended
ML18113A704
Person / Time
Site: Surry  
Issue date: 11/29/1978
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML18113A703 List:
References
NUDOCS 7812190149
Download: ML18113A704 (64)
v • d • e


Text

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CONAX CORPORATION .

  • 2300 Walden Ave. Bullalo. New York 1_4225 fr,, f1ru It

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i::..1._. "*;J,J......, TEST REPORT QUALIFICATION TEST PROGRAM.. OF ELECTRICAL INSTRUMENTATION CABLES FOR VIRGINIA ELECTRIC AND POWER COMPANY FOR SURRY POWER STATION UNITS 1 AND 2

e-( __.* 0 0 ~ ' l II 0 CONAX CORPORATION-. 2300 WALDEN'AVENUE BUFFALO, NEW YORK 14225 TEST REPORT QUALIFICATION TEST-PROGRAM OF ELECTRICAL INSTRUMENTATION CABLES FOR VIRGINIA ELECTRIC AND POWER COMPANY FOR SURRY POWER STATION UNITS 1 AND *2. No. IPS-383 REV. DATE ~)"J\\ /) £ /' PREPARED BY y,,(_),. '\\_.a~i:.~ a<'lq,/,(,,:J>{..I'_ DATE //-2 tj-7 g 7 J. D. DePasquale t Test Engineer -*,c*_.:.. /~; L~-*buroure,

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VI CONAX CORPORATION No. IPS-383 2300 WALDEN AVENUE - 'BUFFALO, NEW YORK 14225 REVISION RECORD t-----,--------,-------------------,-------.--------* REV. Origina AFFECTED PARAGRAPHS All BRIEF DESCRIPTION OF REVISION Original Release DATE 11/27 /78 APPROVAL SIGNATURE (2 I,),* 4. l?~t'?~""*~; J. D. DeP~squal 1 Test Engineer

\\. l-UNAX No. 1.i:::i-JdJ CONAX CORPORATION .2300 Walden Ave. Buitalo, New York 14'225 ABSTRACT Environmental testing of Instrument Cable was conducted to qualify it* to requirements established by Virginia Elect.ric and Power Co. (VEPCO) for Surry Nuclear Power Generating Station, Units. 1 and 2.. The test (;!able was manufactured by Continental :Wire and Cable Corporation, Division of Anaconda and was removed from the Surry site after more than seven ( 7) yea-rs of service life. Testing was authorized by VEPCO_Purchase Order Number 6786~ (Conax W/0 7-69200). The test cable.was subjected to Thermal Aging and Radiation Exposure prior to being tested to simulated accident conditions. of Loss of Coolant (LOCA) and Main Steam Line Break (MSLB). This test program demonstrated the ability of the Instru-ment Cable to perform throughout abnormal service conditions after having been put into an accelerated end-of-life condition as s.pecified by VEPCO. ii

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  • _,. 1 ~ - J d..5 CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 SECTION 1.0 2.0 3.0 4.0 5.0 6.0 7.0

. 8.0 APPENDIX A B C TABLE OF CONTENTS TITLE PAGE OBJECTIVE 1 APPLICABLE DOCUMENTS 1 ITEMS TESTED 1 TEST FACILITIES 2 TEST EQUIPMENT AND CALIBRATION DATA 5 TEST PROCEDURE 6 TEST RE"SULTS 11 CONCLUSIONS 16 Test Data Virginia Electric and Power Company "Specification for Environmental Testing of Instrument Cable for Su~ry Units 1 and 2" Letter from F. J. -Illig of Gonax Corporation to J. Davis of Virginia Electric and Power Company dated November 20, 1978 iii -

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0 0 ci z ~. o* LL CONAX No. IPS-J83 CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 -1. 0 OBJECTIVE The Qualificat-ion Test Program was conducted* to determine whether electrical instrumentation cables manufactured by the Continental Wire* and Cable Corporation* (now a Division of Anaconda Co.) would function properly under environmental conditions simulating those expected within the containment of the Surry Power Station, Units 1 and 2 of the Virginia Electric and Power Company during a postulated loss of coolant* accident (LOCA) or during a main steam line break (MSJ.:.B). The test program included_add{iional aging and irradiation of the cable samples*which had been in service at Surry for more than severt (7) years, expo~ure of the cables to a combined steam:and chemical.sprq.y while electrically energized, and a comparison of the physical and electrical properties of the samples -before and after. the environmental exposures. 2.0 APPLICABLE DOCUMENTS 2.1 Virginia Electric and Power Company "Specification for . Environmental Testing -of Instrument Cable for Surry Units 1 and 2" dated*.September 19, 1978, shown in Appendix B. 2.2 Table A2, Appendix A of IEEE 323-1974 Standard for Qualifying Class lE Equipment for Nuclear Power Generating Stations, for* spray rate only. 2:3 Letter from F. J. Illig of Conax Corporation to_J. Davis of Virginia Electric and Power Company dated November 20, 1978, shown in Appendix C. 3.0 ITEMS TESTED 3.1 Sample Descriprion A. Instrumentation Cable conductor -

  1. 16AWG (7) tinned copper number of conductors - 2 insulation - 25 mil cross linked polyethylene twist lay -

2" shield - aluminum mylar 100% coverage drain - //18 ( 7) tinned copper jacket -* 45 mil. hypalon (black) 3.2 Sample Identification The sample was identified as Cable Numbers 2LF4 and 1IT496. Page 1

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'E .-i \\.....:,.-. 1'10. .L....L I., i ***,' l..,*.J . CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 4.0 TEST FACILITIES 4.1

  • The irradiation of the samples was conducted at Isomedix Inc.,*

Parsippany, New Jers~y. 4.2 The Measurement of Physical and Electrical Properties-was conducted at Haveg Industr.ies, Winooski; Vermont. 4.3 All other tests were conducted at Conax Corporation, Buffalo, New York. The set-up for the LOCA and SLB tests is.shown in Figures A and B. ,/ _}?age 2

e e FIGURE A Set-up for LOCA and MSLB #1 Tests IPS-383

  • Pag.e 3

IPS-383 -FIGURE B Set-up for MSLB Test #2 Page 4

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.0 IL CcoNAX CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 5.0 TEST EQUIPMENT AND CALIBRATION DATA

  • Item Manufacturer Serial No:

DC Voltmeter Weston 46143 E-1 ec tronic Multimeter B & K 11-07750 Digital Multimeter Keithley 12868 Temperature Esterline Recorder Angus - 93 9860 Temperature Leeds & Recorder Northrup C68-63386-1-1 Time Industrial Totalizer Time 10 Thermocouple ConaX: 3 DC Power Supply B & K 2-00436 No. IPS-383 Calibration Accuracy Date % F.*S. 4-78 0.5 11-78 1.5 5-78

  • 0. 015 6-78 0.5 8-78 3.0 10-78 7-7'8 1.5 Ref. Only Ref. On*

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0 CONAX. No. IPS-383 CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14 225 6.0 TEST PROCEDURE 6.1 Testing was performed in accordance with Virginia Electric and Power Company "Specification for Environmental Testing of Instru-ment Cable for Surry Units 1* and 2", shown in Appendix B. 6.1.1 The test program included additional thermal aging and irradiation *of the cable, exposure of the cable to a combined steam and chemical spray (LOCA and MSLB) while electrically energized, and a comparison of the physical and electrical properties of the cable before and* after the environmental exposures. 6;2 The cable samples supplied by.VEPCO were cut.into test samples and utilized for testing as shown in Figure C. 6.3 LOCA Test 6.3.1

  • The three test samples were installed in the test*

chamber, connected, instrumented, energized, and sub-jected to the LOCA environment. 6.3.1.1 Each test sample was connected in series* with a variable resistor and a -500....ru.. 2W 1% resistor, and s_upplied with SOVDC power. The variable resistor was adjusted to produce a 12.SV potential drop across the 500.n.. resistor per Figure S of the VEPCO Specification. NOTE: This setting of the variable resistor reamined unchanged throughout

  • the test.

6.3.1.2 The te.st chamber was stabilized at 143°F. 6.3.1.3 A chemical spray solution of 2500 PPM borated water with caustic (NaOH) added to produce a pH value of 9 to 11 was initiated into the test chamber at t = 1 minute and continued for the first two hours. 6.3.1.4. A chemical spray solution of 2500 PPM borated water with caustic (NaOH) added to produce a pH va],.ue of 7 to 9 was initiated into the test chamber at t = two hours and continued for the re-

  • maining 46 hotirs of test.

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F*tGURE C l-l/1 uJ I-V 0 -' UT1l1'ZATION* CF CABLE SAMPLE FOR TEST SAMPLES* IPS-38.:3 Page 7

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CONAX No*.

  • IPS-383 CONAX CORPORATION 2300 Walden Ave. Buflalo. New York 14225 6.3~1.5 The flow rate of the chemical epray solution was maintained at 0.50 GPM, equivalent to a spray rate *of 0.15 GPM/

FT2 into the.test chamber. 6.3.1.6 The test data was recorded on Data Sheets A, Band C.

6. 3. 2 Upon removal from _the test chamber,
  • each cable :was inspected for evidence of physical deterioration.

6.3.3 A sample for subsequent measurement of physical and* electrical properties'was cut from that part of the test sample (2LF4-/17) which had been directly exposed to the LOCA environment. .'6-~ 4 MSLB Test

  • 6. 4.1 The three test samples were installed in the test chamber, connected, :i..nstrumented, energized and sub-jected to the MSLB. environment:

6.4.1.1 Each test sample was connected in series with a variable resistor and a 500.J'\\... 2W 1% re-sister, and supplied with SOVDC power. The variable resistor was adjusted to pro.duce a 1~. 5V potential drop across the 500.Jl..* resistor per Figure 5 of the VEPCO Specification. NOTE*: This*setting of the variable resistor remained unchanged throughout the test. 6;4.1.2 The _test chamber was stabilized at 141°F'. 6.4.1~3 A ~hemical spray solution of 2500 PPM. borated water with caustic (NaOH) added to produce a-pH value of 9 to 11 was

  • initiated.-into the test.chamber at t =

1 ~inute and continued for the first 2 hours.

6. 4. J.*4 A chemical spray solution of 2500 PPM borated water with caustic (NaOH) added to produce a pH.valu~ of 7 to 9 was initiated into the test chamber at t =

2 hours -and continti.ed for *the* rem_aining 46:hours of ihe test. Page 8

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CONAX No. IPS-383 *. . CONAX CORPORATION 2300 Walden Ave, Buttalo. New York 14225 6.4.1.5 The flow rate of the chemical spray solution was maintained at 0.5 GPM, equivalent to a spray rate of 0.15 GPM/ FT2 _into the chamber.

  • 6. 4.1. 6
  • The test data was recorded on Data Sheets D, E and F.

6.4.2 Upon removal from *the test chamber, each cable was

  • inspected for evidence of physical deterioration.

6.4..;3 A sample for subsequent measurement of physical and electrical properties*was ~ut from the part of

  • tes t s*arnple ( 2LF4-ff 6) which had. been directly exposed to the MSLB environment.*
  • . 6. 5 The five samples for Mea*surement of PhysicaF ari.d Electrical Properties were shipped t~ Haveg Industries, Winooski, Vermon:t.

6.6 SLB Test ff2 (reference Appendix C) 6.6.1 The three test samples were*installed in the test chamber, connected, instrumented, energized and sub-jected to the SLB environment.

  • 6.6.1.1 Each test sample was connected in series with a variable resistor and a 500...J'\\..

6.6.1.2 6.6.1.3 6.6.1.4 2W 1% resistor, and supplied with SOVDC power. The variable resistor was adjusted to P:roduce a 12. 5 potential drop ac;::ross the 500.n.. resistor per. Figure 5. of the VEPCO Specification. NOTE: This setting of the variable resistor remained unchanged* throughout the test. The test chamber was stabilized at 140°F. The test-data was. recorded on Data Sheet .G. At the conclusion of the test, the Insula.tion Resistance of each test sample w<?-s measured at SOOVDC as follows:

  • BL wire_ to GND
  • WH wire to GND BL wire to WH wire

_The results are stated in Section 7. 3.

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. 18 0 0 0 z 2: a: 0 I&. I I CcoNAx.. I No... rPs-383 CONN< CORPORATION 2300 Walden Ave. Bulfalo. New York 1.4225 7.0 TEST RESULTS 7.1 The.test items were subjected to the following sequential tests in accordance with the Virginia.Electric and Power Company Specification. Sequence 1 2 3 4 5 6 7 Test Samples 1IT496-//1

  • 1IT496-//2 1IT496-/13
  • 2LF4-lf 5 2LF4-/f 6 2LF4-//7, 1IT496-ffl 1IT496.:./f2 2LF4-ff7 1IT496-//3 2LF4-lf 5 2LF4-lf 6 1IT496-/fl

. 1 IT496;../f2 2LF4"-lf7 1IT4*96-/f3 2LF4-f/5 2LF4~/f 6 1IT496-f/4-A 1IT496-/fl-A 2LF4-//7-B 1IT496-/f 3-A 2LF4:..f/6-B 1IT496-f/8 1 IT496-//2 2LF4-IJ 5 Te.st Thermal Aging for 60 hours @ 100°c Irradiation to 20 MR Irradiation 20 KR LOCA MSLB .Measurement of Physical and Electrical Properties SLB 112 7.2 D~tailed Data Sheets are shown*in Appendix A. 7 ~-3 . The results are summarized below. Sequence 1 Thermal Aging - The six test samples were thermally aged for 60 hours at 100°C. Inspection of.the sa:mples. after this exposure showed

  • no evidence of physical deterioration.

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1 No. IPS-383 CONN< CORPORATION 2300 Walden Ave, Buffalo, New York 14225 2

  • Irradiation to 20 MR - The three test samples were irradiated at lMR/HR to 20 MR.

Inspection of the samples after thi*s exposure showed no evidence of physical deterioration. A certified report from Isomedix Incorporated is sh~wn in Appendix A. 3 Irradiation to 20 KR - The three test samples were 4 5

  • irradiated at 1 KR/HR to 20 KR.

Inspection of the.samples after this exposure showed no evidence of ph~sical deterioration. A certified report from Isomedix Incorporated is shown in Appendix.A. LOCA Test - The three test samples were subjected t*o the specified temperature/pressure/ chemical spray environment. The Test Chamber Temperature Profile is shown* in Figure D. Prior to start of the test, the variable resistor fn each circuit was adjusted to produce a 12.SV drop across the 500..ll-2W 1% resistor; the calcu-lated current at 12.SV and 500..f\\...was 25.0 milli-amperes. The acceptance*criteria required that the current in each cable be between 24 and 26 milliarnpe*res during the first 5 minutes of* test, and between 22 and 28 milliamperes throughout the remainder of the test. The required potential drop across the 500~ 2W 1% resistor was between. 12-. OV and -l3. OV during the first 5 minutes, and

  • between 11.0V and 14.0V throughout the remainder of the test.

As shown on Data Sheets A and.B, all voltage

  • measurements, and calculated currents were within the required limits.

Inspection of the samples after this exposure showed no evidence of physical deterioration. MSLB Test - The three test samples were subjected to the*specified temperature/pressure/chemical spray environment. The specified temperature of 355°F was not attained within the specified rise time of 20 seconds. *The Test Chamber Tempera-ture Profile is shown in Figure E. Page 11

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. 0:: 0... \\. CONA.X. No. 1Ps-J8J CONAX CORPORATION 2300 Walden Ave. Bulfalo, New York 14225 The adjustment of currents and the acceptance crj.teria were the same as for the LOCA Test. As sb.own on Data Sheets D and E, tl;le voltage measurements for test sample #5 varied between 12.2V and 15.3V from a lapsed test time of 15 minutes through 48 hours (see discussion in Section

7. 4).

As shown on Data Sheets D and E, all other voltage m*easurements and calculated currents were within the required limits. Inspection of the sample,s after this exposure showed nQ evidence*of physical deterioration. 6 Measurement of Phy.sical and Electrical Properties - A.certi'fied report from Haveg Industries will 7 be forwarded as an Addendum to this report. SLB #2 Test (Ref. letter from F. J. Illig of Conax Corporation* to J. Davis of Virginia Electric and Power Company dated November 20, 1978) - The three test samples. we.re.subjected to the specified temperature/pressure* environment. The *temperature recorder chart is shown in Apperidix*A. The adjustment of currents and the acceptance

  • criteria were the same as for the LOCA Test.

. As shown on Data Sheet G, all voltage measure- .ments ~nd calculated currents were within the required limits. Inspection.of the samples after this exposure showed no evidence of physical deterioration. . Page 12

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a: 0 I&. I I l.____co_N_A_x ___ --] No. IPS-383 CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 7.4 Discussion At the conclusion of the MSLB Test, the resistance of each variable r*esistor was measured at its original setting. The

  • values were as follows:

Test sample 'l/3 circuit 1273..f\\.. Test sample #5 circuit - 884..rL .Test sample_ //6 circuit - 1289-"'- The resistance of.each fixed resistor was also measured and the valuEfs were as follows: Te$t sample #3.circuit - Test sample #5 circuit Test sample /16.circuit - 503.Jl-5 0 4..f"\\.- 504.J\\.- As shown in Figure 5.of the VEPGO Spe.cification, each of the test sample circuits included a 50-0..1'1. 2W 1% resistor and a variable resistor. Each of the variable resistors was adjusted to produce a 12. 5V drop across the 500-...l'I-resistor, and these voltages were stabilized prior to start of.the MSLB test. The. resistance of the cable conductors in test samp.le 115 was negligible ( less than O. 0 7.JL ') in relation to the combined resistance of the 500.n.. resistor and the variable resistor. The measurements at the conclusion of the MSLB test indicated that the resistance of the variable resistor in test sample

  1. 5 circuit decreased approximately JO%.

It* should be empha-sized that the setting of the resistor remained unchanged. * . It is, therefore, conclusively established that the increased current flow in test sample-115 circuit was directly caused by the resistaQCe decrease in the variable resistor used and in. no way was a result. o_f any change occurring in the test cable~ The LOCA Test and the MSLB Test were witnessed by R. Schaffer . of Virginia Electric and Power Company.*

8.0 CONCLUSION

Analysis of the results as shown on Data Sheet_s A through F demonstrates-conclusively that all cable test samples functioned as intended throughout all phases of this test 'program. Page 15

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0.... l I CcoNAX CONA)( CORPORATION 2300 Walden Ave. Buffalo, New York 14225 No. IPS-383 APPENDIX A Test Data

Mr. Len-Nowak Conax Corporation 2300 Walden Avenue Buffalo, New York 14225

DearMr. Nowak:

ISOMECIX November 30, 1978 H.EC'EJVED , :i r. r~ .,t 1978 F.U~C.HASING* DEPT. This will summarize. parameters pertinent to the eight (8) 12' cable samples, as per your* Pur':nase Order Number 54279, .dated Octobe.r 25., 197a. The first four (4) cables were plated in a Cobal.t-60 gamma fieid at a dose rate of.93 kegarads an hour. The samples were exposed for 22.8 hours, yielding a total dose of 21.2 Megarads. The*other three (3) cables were placed in a Cobalt-fiO gamma field at c1 dose r.a.te of 1000 rads per hour. The cables were exposed for 20 hours, yielding a total dose of 20,000 rads. The last cable was not irradiated~ All of the cables wera marked with their actual doses on the tag which was attached to each cable. Dosimetry was performed using an. Atomic Energy of Canada,.Ltd. (AECL)., Red Perspex sys*tem with Type BC-2 readout. Calibration of the Persp~x is made bi AECL using Ceiic dosimetry trace-* able to the U.S. National Bureau of Standards. Isomedix regularly cross~calibrates its AECL system with an in-house Harwell Perspex system, and.makes semi-annual calibrations directly with NBS r u*sing the NBS. Radiochromic Dye system. A copy of the dosimetry ~o~ielation report is avail~ble upon re-quest" Irradtatiprt was conducted in air at ambient temperafure and pressure. Radiant. hea-t

  • from the source heated the sarnplr,s.

somewhat, but the temperature did not exceed 85°F, as indicat-ed by previous ~easu~ements ~nan. oil solution in the same rela-tive position. lsomed.ix Inc.

  • 25 Eastmans Road, Parsippany,- New Jersey 07054 * (201) 887~2666 I

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!~.. , M~. *Nowak November 30,. 1978 Irradia tiori for the 20 Megarad cable samples was *irradiated on* . November-2, 1978, and was completed on Nove~ber 3, 1~78. The..

  • irradiation for the 20,000 rads gr6up*was initiated on November 6, 1978, an~ was.completed on November 7, 1978.

DPC:km Very *truly yours, David P. Constantine Production Manager \\_. . lscmedix Irie.

  • 25 Eastmans Road, Parsippany, New Jersey 07054 * (201),887-2666

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0 I&. 1-* CcoNAx No. IPS-383 CONAX CORPORATION 2300 Walden Ave. Bullalo. New York 14225 APPENDIX B Virginia Electric and Power Company. "Specification for -Environmental Testing of Instrument Cable for Surry Units 1 and 2"

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  • ..___j SPECIFICATION FOR ENVIRONMENTAL TESTING OF INSTRUMENT CABLE FOR SURRY UNITS 1 & 2

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Page 1 TABLE OF CONTENTS I Introduction Sample Description Test-Program 3.1 Test Outline

  • 3.1.1 Loss of Coolant Accident Test
  • 3.1.2 Main Steam Line Break Test 3~2 Test Data 3.2.1 Loss of Coolant Accident 3.2.2 Main Steam Line Break Ac:ceptance Criteria Test R~sults

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1.

INTRODUCTION The. qualification Test Program described in the specification is to be (,.., __ / e* ( \\.,__,,* . 1conducted to determine. wht ther electrical instrumentation cables. I manufactured by the Continental Wire & Cable Corporation (now a division of Anaconda Co.) will function properly under environmental conditions

  • simulating those.expected within the containment of the Surry Power Stations Units No. 1 and No. 2 of the Virginia Electric and Power Company
  • during a postulated* loss of cooling accident (I.OCA) or during a main steam line break (MSLB).

The test program will include irradiation and additional aging of the cable samples which have been in service'at Surry for more than seven years, exposure of the cables to a combined steam and chemical spray while electrically energized and a comparison of the P,hysical properties.of the samples before and after* the environmental exposures. Separate tests will be conducted, one to simulate the LOCA conditions and a second test to simulate the MSLB environment. -- --*----- -- ---- - ---------- -*------* __, ___ --- ---,..~ - --- - - - - --* -*-*** ----*--* *~* ---

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A. SAMPLE DESCRIPTION Instrumentation Cable conductor - No. 16 AWG (7) T-inned Copper nwnber of conductors*- 2 Insulations: 25 mil corss linked polyethylene Twist Lay: 2" Shield: Aluminum Mylar 100% coverage Drain: No 18 (7) Tinned copper Jacket: 45 mil Hypalon (Bl.ack) Page 3 Sample was previously installed at Surry. Units Nos. 1&2 and wa~ indentified as Cable Nos. 2LF4 (66 ft.). & 1IT496 (40 ft.). The cable was initially installed in 1970 and removed.. July 1978.

,,,,---.\\. r I 3*. Page 4 TEST PROGRAM 3.1 3.1.1 Test Outlines A. Seven (7) test samples shall be prepared, each about twelve (12) feet* long. B. .Three (3) test sampl~s.shall. be used for each test, loss of Coolant Accident (LOCA) and Main Steam Line Break (MSLB) C. One (1).test sample shall be utilized for initial measurement of all. physical and electrical properties, to inclu~e tensile strength,* elongation,- insulation resistance, , dielectric withstand, ~ciwer factor and SIC.*,

  • n.

No stated-requirements of the tests are to be changed or modified without prior agreement with the VEPCO test engineer. LOCA Test A. To simulate th'e additional thirty three years of in-plant use on a maximum ambient of SOC_, six(6) test, samples shall be thermally aged at 100°c for 60 hours. B. Three (3) test. samples shall be exposed to gamma r.ad*iation at a dose rate of 1. 0 meg*arads per hour for a total integrated dose of 20.megarads.

  • C.

A two (2) foot *section of one irradiated and *aged sample shall be used for measurement of all physical and electrical properties. (Sec;. 3.1.C.) D. The three (3) test_ samples shall.be installed, connected, instrumented and energized as shown in Figure 5. E.

  • Eath varialbe resistor shall be adjusted for a*cable current 9f '25 ma.

e .,......._\\ ( Page 5 F. The test samples shall be subjected to the simulated LOCA temperature/pressure/chemical spray envelopes as shown in Figures 1 and 2. G. All data for the environment and test samples shall be logged and retained. H *. Following completion of* the.autoclave test, one (1) test sample shall be used for measurement of all physical and electrical properties (Sect~ 3.1. C.) I. Test parameters, '.test chamber temperature and pressure, test circuit current and voltages shall be logged at one (1) minute intervals for the-first five (5) minutes of the tests, at 15 minute intervals for the first hour and then each hour thereafter until test completion. 3.1.2 MSLB Test

  • A.

Three (3) previously aged tes~ samples shall be exposed to gamma.radiation.at a dose rate of 1 kilorads per hour for a* total integrated does of 20 kilorads. B. A two (2) foot section.of one irradiated and-aged sample *shall be utilized for a measurement of all physical and el*ec trical properties. (Sect. 3.1. C.) . C. The three (3) test samples shall be installed,l, connected, instrumented, and energized as shown in Figure 5* *. D. Each variable *resistor shall be.adjusted for a cable current of 25 ma. E. The test-samples.shall be subjected to the simluated MSLB temp~rature/pressure/chemical sp~ay envelopes as shown in Figures 3 and 4.

e e ( '*. -./ F. All data for the environment.and test samples shall be logged and retained. Page 6 G. .Following completion of the autoclave test, one (1). test sample shall qe used for measurement pf all physical and electrical properties. (Sect. 3.1. C.)

  • H.

Test parameters, test chamber temperature and pressu~e, test circuit current and voltages shall be logged at one (1) minute intervals for the first five (5)* minutes of the test, at 15 minutes intervals for the first hour and then each hour thereafter until test completion.

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4.

ACCEPrANCE CRITERIA A. Short term for safety system initiation following an inr.ident: The cable shall _be considered acceptable if the current. measurement remains between 24 and 26 milliamps durinc the first five minutes of the test. B. Long term for. monitoring and operator action following an incident: The. cable shall be consi~ered acceptable if the current measurement remains between 22 and 28 millamps throughcu.t the test.

5. TEST RESULTS A-.,,.,At.:the conclusion of the tests; all test data shall be assembled and coordinated and a.final test report prepared.

B. The final test report shal_l include a list of all test instruments used with ty.pe, manufacturer, ca:libration date and

any other pertinent.data
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I I,,_.., i',. I\\. ,"'\\r t f\\. ~ - ' ~... - ( i., -. \\ ICiOO. FI G. NO. 6. ---

~. "-__) 5 C) C) 5 TYPE OF CABLE: 2/C ~FIS OVERALL SHIELD.. 25 MILS XLPE INSULATION. -45 MILS OVERALL HYPALON JACKET.38 11 OVERALL DIAMETER. REGION: I) NO.IS AW.G. COPPER CONDUCTOR.

  • 2 ) 2'5 MILS (. 0 2 5 11

) XL PE. I NS UL AT IO N *

  • .. 3) AIR SPAC 0

E DIMENSION ASSUMED S-MALL * . __ 4) OVERALL ALUMINUM ~qlL SHIELD-2 MILS {."0020 11 ) THICK.

5) OVt:RALL HYPALON JACKET--4?5 MILS {.045 11

) THICK. 6 ) A S 8 E ST OS B I N D I N G.TA P E 6 MILS (. 0 0 6 11 ) * . CRO-SS SECTJON*- 300 V INSTHUMENT CA 8 LE. ..:SUR.RY , POWER STATION UNITS I AND 2

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0 II. CONAX. No. IPS-383 CONAX CORPORATION 2300 Walden Ave. Buffalo. New York 14225 'APPENDIX C . Letter from F. J. Illig of Conax Gorporatiori to J. Davis of Virginia.Electric and Power Gompany dated November 20, 1978

e L. e C /. / CONAX CORPORATION. 2300 WALDEN AVENUE. BUFFALO, NEW YORK 14225

  • TEL. 716-684-4500 TEt;EX -

091--275* November 20, 1978 Virginia Electric and Power Co. P; 0. Box 26666 . Richmond, VA 23261 Attention:*. Mr.. John Davis

  • s-ubject:

Additional SLB Test No. 2

Reference:

VEPCO P.O. 1/67862 and Specification. fnr Environmental Testing* of Instrtnnent Cable for Surry Units 1 & -z*

Dear. Mr. Davis:

At the outset of this test. program, it was. *mutually agreed that,. if we were not successful in* approximating the temperature rise time of the SLB Test as specified in_ Figure 3 of the above referenced specification, an~dditional test would be performed* by us. In performing* the SLB Test on November 14, 1978, 80 second*s

  • time.

was required to attain the 350 °F temperature wi_th the.20 second rise time specified: by you. It was, therefore, agreed in*our telephone conversation of November 16, 1978 that a supplemental test designated as SLB 112 would be *performed* by us in a much* smaller test chamber where faster rise times can be* achieved.* The test conditions of SLB #2 are as defined below: J 1. Tes.t Items:. 1 p_c - Cable aged. and irradiated to 20 megarads 1 pc - Cable aged_ and irradiated to 20 kilorads 1 pc - Cable as re.cei ved f ram VEPGO 2 *. Test Circuit - to be per Figure 5 of VEPCO Specification* ** . 3.

4.

Test Chamber Size - inside dimens.ions 7" diameter x 13" length** SLB #2 Test Profile: 140°F to 350°F in 20 seconds Hold at 350°F until T = 15 m:Lnutes Drop to 160°F-by T * = 60 minut.e.s * -~- ~~ -- --** ------ ----- -

  • -* ***--- -~---~**--~-*-** *-

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

,c Mr. John Davis November 20, 1978 Page 2 Hold at 160°F until T*= 2* hours No chemical spray applied during te*st

5.

Test Measurements - parameters shall be logged at one (1) minute intervals for the first five (5) minutes of test, at 15 minute intervals for the first hour and then at 1/2 hour intervals until . test completion We are proceeding p*er* the above and all data from the SLB 112 Test will be included in the final qualification report *submitted to you. Very truly yours, CONAX CORPORATION . J1J,d_:. - F_/J_. Il~. Project Manager - Test FJI/cah ~-~---------------*--* ----~-~-----*,-***-* *-----

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