ML17325A859

Qualification Tests of Coaxial-Type Cables in Simulated Steam Line Break & LOCA Environ.

ML17325A859
Person / Time
Site:	Cook
Issue date:	09/02/1980
From:	FRANKLIN INSTITUTE
To:
Shared Package
ML17325A858	List: ML17325A857 ML17325A859
References
F-C5120-2, NUDOCS 8807070375
Download: ML17325A859 (30)

Text

QUALIFICATION TESTS OF COAXIAI -TYPE CABLES IN A SINULATED STEAYi LINE BREAK (SLB) AND LOSS-OF-COOLANT ACCIDENT (LOCA) ENVIRONNENT Final Report F-C5120-2 Prepared for BRAND-REX COMPANY A PART OFALZOna INC. Rex WILLNAÃllC,COHNECTlCUT 06M3 PHOHc Z3 423-777$

September 2, 1980 Ills Franklin Research center A Division of The FrenlJin Institut SS07070375 The Senjomin FronMin Porkwoy, Phib., Po. l9103 (2l sl 448-l000 PDR SS0624 9

ADOCK 050003i5 PDC

F-C51 20-2 1 ~ SlMMARY OF SALIENT FACTS FRC Project Ho. Report Litle:

C5120 00ALIFIcATIDH TEsT5 oy coARIAL TTPE cARLE5 IH A SIHVLATED sTEAH

! IRE bREAX (SLb) AHD LOSS&F COOIAÃT ACCIDEilT (LOCA) EHVIROI(EÃr Conducted and Reported 8y: Conducted for:

Franklin Research Center brand-Rex Conpany The I'arkvay et Tventieth Streec Industri ~ I snd Electronic Cable Division Philadelphia FA 19103

~

VCIICsssntic, CT 06226 Report Oate: Period of Test Progress:

Sepcnncer 2. 1960 August through Decsnber 1979 Objectsue:

To denonstr ace per for ance of cotxial tyne cables for Cl ~ ss !E service in ruclear Fever generating I

stations in accoroance vsth appropriate tuiaelines presented in IEEE Stds 32)-!97A and )83 1976 ~

I Equipment Tested:

Tvo RC-IIA/u and four RC-598/u coaxial cables vith cross!Coked polyethylene (XLFE) insulation and an overall Hypalon j cket. A couplers descripcion is provided as Table I herein.

Elements of Program:

Three of the specioens vere unaged, snd three speciuens vere nherssa!IF aged for 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> (7 days) ~ t 136oC (227oy) ~ All specinens vere exposed co 200 Hrd of gssssa irradiacion (air equivalent dose) fros a cobe!t-60 source ac a race !ess than ! Hrd/h and then co ~ stress/chesslcal-spray <<nvlronscnt s(vulating a coebined stean line break (SLS) and !oss-of-coolant accidenc (LOCA) and the cooldovn folloving che SLb/LOCA.

The sinu!aced SLS/LOCA exposure included tvo rapid rises in teuperature/pressure to )8SoF(196oC)/66 lbf/in (655 'kpa), cvo lorn(nuts dvells at those peak teap<<ratures, folloved by decreasing teaperatures to a final 20-da/ dve!1 at 230 F (110 C)/10 lbf/in2 (69 'kpa) ~ The tocal sisulated SLR/LOCA duration vas 30 days A chenical solution (6200 pps boton, 50 ppss hydratine, sufficient sodiw triphosphate to obtain a pl! of 8.5 folloved by sufficient sodium hydroxide co obtain a FH of 10.0 ac roon tessperature) vas sprayed on che specisssns at the race of 0.27 gpss per square foot (11 L/aln per snuare sseter),2 starting at tha cosspletion of the !omnute dvells at 385oy (196oC). The cables vere ~ lectrically energised vith ac potenci ~ ls cf 600 V during the 30<ay SLSILOCA exposure. Final tescs consisted of a AOX diameter bend test and a Swinut high potential~!thstsnd test ac 80 V per ail (3!SO Vlsm) of insulation.

Susnsary of Test Results:

SLR/LOCA Ex osure All six specissens ressained energised except for short periods to perssit electrical

~ essurenents or for;easons not associaced vith the speclssens of this report.

Final Hi h potential@(thstand Tests All specissens vCthstood hCgh potentCats vith leakagelcharging Currenta lace than .0 nn.

I'ull <<icatCons are provided in the texc. 25ee SectCon A.S for description of spray ares calculation.

ill~iJ~J Franklin Research Center A (hnsion d The Fssns.sn sns".uv

F-C3120-2 2e IDENTIFICATION OF CABLES TESTED The cable specimens vere of the coaxial type as described in Table 1 ~

The total length of each cable vas approximately 30 ft; 15 ft of each specimen vas vithin the test vessel during the steam/chemical-spray exposure.

Table l. Ident l f Ication or Specitnens and Related'Data PUDL I SHED 'PECIHEH FRC IHSlILATIDH/ IHSULATIofl OUTS IOE SPECIHEH SRAIID-REX JACKET THERHAL AG IHG THICKHESS DIAHETER HUHOER OESIGHATIOH COIIDI TIGRS (In)/(ant) ( In)/(ttstt)

HATER IALSI C5I20-8-1 'S 75285(RG-) IA/u) XLPE/Hypalon Una9ed 0.121/3.1 0.39/9.9 C5120.8-2 CS 75285(RG-11A/u) XLPE/Hypalon 168 h P 277'F (136'C) G. I2I/3. I 0.39/9.9 C5120 I CS 75146(RG-598/u XLPE/Hypalon Una9ed 0.06/1.5 0.24/6.1 C5120-9-2 XLPE/Hypalon Unaged 0.06/1.5 0.24/6.I C5I 0-9-3 XLPE/Hypalon 168 h P 277'F (136'C) 0.06/1.5 0.24/6.1 C5120-9-4 XLPE/Hypalon 168 h P 277'F ( 136'C) 0.06/1.5 D.24/6.1 tXLPE - Flame-retardant crossllnked polyethylene Hypalon - Flame-retardant chlorosulphonated polyethylene 2-1 t tII.

Ilg I Franklin Research Center h 0 ~won of The Ftnnhfin Inst tote

P-C5 120 "2 3" 2 5~ TEST RESULTS

5. 1 INSULATION RESISTANCE Results of IR measurements obtained during the test program are summarized in Table 2. IR measurements made during the S/C exposure include the IR ef-fects of extension cables'and terminal blocks used to connect the specimens to he energiiing circuits; the effects usually cause a small reduction in measured IR.

5.2 THERMAL AGING The specimens that were thermally aged at 136 o

C o

(277 F) for 7 days appeared to be in generally good condition;.there was no significant difference in flex-ibility from that observed before the thermal aging. Minor blocking, i,e.,

n sticking, occurred between turns of some specimens and where the specimens touched the stainless steel mandrel and cable supports. There were no crac'ks or other irregularities observed.

5. 3 GAMMA IRRADIATION After being exposed to an air-equivalent dose of 200 Mrd, the specimens appeared to be in good condition with no apparent change in their flexibility.

There were no cracks or other irregularities observed.

5. 4 STEAM/CHEMICAL"SPRAY EXPOSURE The steam/chemical-spray (S/C) e'.posure was provided in general accor-dance with the specified temperature/pressure profile illustrated in Figure 4 with the following comments:

~ The pressure and temperature histories for the first 16 minutes of each transient are presented in Figures 5 and 6.

~ A temperature of 300 F (149 C) was achieved in approximately B sec-onds during the first and second transient.

o A temperature of 385 F (196 C) was reached in, 38 seconds during the first transient and 35 seconds during the second transient. These temperatures were indicated by a thermccouple located approximately 1 'n (25 mttt) inside the inner mandrel of cables.

~= Within 15 minute., after the 12-minute superheated steam dwells, the minimum and maximum indicated temperatures were less than 10 0 F 5-1

'""-'ranklin Research Center

< Dwisica ot Thc Fiangin InsÃ~'.e

r4 ID OM 74 oi '

CI 0 ~0 C 8 o c) lD fD lD D

la I Table 2. summary of Insulation Resistallel Ne3sureinents 4 4 (All values are in o>>ms.)"

CW

+ igl TEST TEIIPER- VESSEL EARLE invern PROGRAII ELAPSEO ATURE pnfssURK PIULSE 'TIHE ( F)/( C) (lbf/inx) 8-1 8-2 P-I 9-2 9-3 9-4 R. D PA Pre-Therma) As Rooia 0 ).7 E4)2 1.5 K412  ?.0 foal? 2.0 E412 1.9 f412 1.7 E4)2 g ui ID Aging Received Ambient (In llater)

R (n Post-Therma)

After I)eat Rot aged 2.0 f413 Ilot aged Rot aged 5.0 f412 5.0 K412 Aging RA Aging Post- Post- 2.6 E4) I 3.5 filo 2.4 EII: 3.0 f410 1.4 f409 5.0 K409 Irradiation Irradiation I're-5/C Pretest 120/19 0 4.5 E409 3.5 EI09 5.0 f 409 4.5 f409 9.0 E409 9.4 f409 Exposure (Ilet uith spray) 5/C 1.7 h 346/174 113 1.0 E407 2.0 f401 8.4 f ~ 06 8.6 f406 I.l f407 I. I E407 ExpOSuieC (1st Transient) 2.3 h 346/174 113 1.1 E4I)7 1.4 E407 9.4 f'406 8.? I'06 I. I E407 I.? E407

(?nd Trans!ent) 4.7 h 335/168 95 1.7 f407 2.2 E407 I.S f407 1.4 E407 1.6 f407 2.0 K ~ Ol 42.0 h 317/'158 70 1.2 E408 1.0 f408 7.4 f u7 5.0 f407 5.O f407 5.3 E407 7.6 d 280/133 7.4 f 408 3.0 f408 6.II finn S.? E408 I.l E406 3.5 K408 16.6 d 230/110 10 4.5 f409 5.0 f409 4.0 f409 x 5 K409 2.9 f409 2.9 f409 22.8 d 230/I lo 10 5.4 E409 6.2 E409 S.O FIO9 4.0 f. ~ 09 2.4 f409 3.0 EKN 5/C 29.9 d 230/110 10 5.2 K409 5.0 f409 9.6 EIO.'I ).5 E409 2.2 E409 2.8 K409 Exposurec Post- Po"t-Test Room 0 1.1 K+13 1.7 EI)3 8.2 K412 9.0 K412 'I.o K413 1.0 E413 Exposured Ambient (In Mater)

HOIESl

a. Insulation resistance (IR) measured at a dc potentia. of 500 volts for I minute unless ntherII!se indi'cated. Specimens ixinersed In water or being sprayed In the test vessel unless ntheri4lse Indicated.

b. The values of ohms are w'Itten as a number folloIIed by the letter f. (for exponent). ~ plus syixbol.

and tuo digits uh)ch Indicate the pouer of lo by xdIICh the Ixxxber axlSC be multiplied tn obtain the correct value. For example, ).2 E409 is 1.2 x ion or ).200.000.000.

c. IR x>>asurcv>>nts of the spec)mens in CI>> test vessl I Include the IR effects nf rxtrnsfon cahlec.

d. )I>> lingchs of the post-test specimen~ 44ere shorter by approx)mately 5 co lo fc (1.5 to 3 m) chan the pre-5/C exposure lengths previuusly measured. See Table 3.

to AEP:NRC:0775AN T-drains 'MO-54

Removal of IMO-54 From EQ List T-Drains in Limitorque Actuators Limitorque motor operator, Donald C. Cook Nuclear Plant tag number IM0-54, has been determined not to be within the scope of 10 CFR 50.49.

A design change to install a T-drain on selected valve operators (RFD-DC-12-2930) was written on June 9, 1986. A purchase requisition to Limitorque for the purchase of the T-drain had been written on April 15, 1986 (PO 02238-041-68). After the necessary management approval, the purchase order was telephoned to Limitorque on April 30, 1986. T-drains were installed in four inside containment and four outside containment valve operators in each unit (16 valves total) on June 13, 1986. IMO-54 was not one of the valves slated for installation.

The miscellaneous EQ issues involving Limitorque valve actuators were fully realized through our participation in the Nuclear Utility Group on Equipment Qualification (NUGEQ), These issues were being addressed prior to the EQ inspection. An April 1986 NUGEQ report, "Clarification of Information Related to the Environmental Qualification of Limitorque Valve Operations" addresses several of these issues.

IMO-54 was scoped to be removed from the EQ list prior to the inspection.. This resulted from our investigation of various NRC EQ Limitorque EQ issues. Thus T-drains were not procurred for or installed on this valve.

IMO-54 is a motor-operated valve located in the Emergency Core Cooling System. It is normally open and remains open during normal plant operation and during a Design Basis Accident.

Injection to the core via this path would be terminated by tripping the centrifugal charging pumps.

IMO-54 will not change position in the event of a DBA. This is due to the AEPSC "Double Break" control circuit philosophy which prevents the spurious operation of a valve due to contact failure or cable shorts. Therefore, the removal of this valve from the EQ list would not adversely impact the accident mitigation or lead to operator misinformation.

to AEP:NRC:0775AN Foxboro Transmitter Evaluation

gyssCAH  % S.g C) s/

AMERICAH ELECTRIC POER SERVICE CORPORATIOH

~ss ca S~~wa~

DATKs May 14, 1986 50bNCTs D, C. Cook Units 1 & 2 Technical Review of Differences in Tested and Installed Configuration of Foxboro Pigtails F Rolls J. Munson - EGS TOs R. G. Vasey .- NS & L During the recent NRC audit of the DCCNP Environmental Qualification Program, 'it was noted that the DCCNP installed configuration of tne Foxooro instrument pigtail condulet per PDS-1341 under RFC-01-2927 5 02-2828 was physically different than the tested con igurazion by the vendor in Wyle Test Report 45592-4. The tested configuration utilized a small 1/4ss weep at a low point on a flexible metal conduit protecting the 'ole Foxboro instrument seal assembly pigtails. The'eep hole was used to drain condensation near the instrument which may have accumulated inside the flex conduit during the si{aulated DBA test (see attached sketches).

The DCCNP installed configuration incorporated the use of a sealtite flexible conduit plus the sealing of both the entrance and exit'of the flexible conduit with an RTV silicone sealant.

No provisions for a weep-hole were made for the DCCNP specific design. The applicable plant design standard for the installation of the instrument, pigtails, flex conduit, splice box, and pigtail splices is shown on drawing PDS-1341 (attached).

The sealtite flexible conduit used in the installation is tradenamed Liquatite and manufactured by the Alflex Co. The plastic covering over the flexible metal conduit is made of a Polyvinyl Chloride (PVC) material. According to the manufacturer, the Liquatite flex conduit has not been environmentally qualified.

The hypothesized failure mode of the D. C. Cook configuration is that the PVC jacket on the flex conduit may fail during an accident near any elevated point on the conduit and allow steam to enter and condense. The condensation would them "pool" at the conduit low points, thereby, subjecting the pigtails to possible submergence. The following paragraphs of this memo address this concern.

IHTRA SYSTKM

~

Through conversations vith Foxboro, it avoid has been determined that the "backing-up~ of the intent of the weep-nole vas to condensate from the chemical spray into the Integral Junction Box used in one of the two tested configurations. The integral junction box houses a terminal block vhich is known to be susceptible to leakage currents when exposed to chemical spray solution. The veep-hole design vas carried-over to the second configuration whicn was used at D. C. Cook. The second configuration incorporaces an internal instrument splice to a Conax seal assembly with no Integral Junction Box or terminal block installed. Therefore, the "backing-up" of condensate near the instrument seal assembly in the D. C. Cook configuration vas of no significant concern.

Additionally, in both tested configurations the metal flex conduit looped back up after the veep hole and vas routed dovn to a penetration at tne bottom of the test chamber. The bottom end of the flex conduit vas .sealed which created a potential for the "pooling" of chemical spray condensate during the test. In this respect, the tested configuration is similar to vhat is hypothesized in the D. C. Cook Plant configuration.

The potential for pigtail submergence failure is much less'f a concern for the D. C. Cook configuration due to the folloving reasons:

1) It is not likely that the D. C. Cook sealed flex conduit configuration would fail in such a vay as to create a harsher chemical submergence environment for the pigtails than vhat was tested. The type of submergence in the speculated D. C.

Cook case involves a steam condensate and is not associated with containment flooding conditions. The steam condensate should theoretically be at a pH value which is less severe than the chemical spray exposure during the test.

2) The Kapton<<insulated pigtail vires of the Gonax Seal assembly are individually protected by the application of a heat shrinkable polyolefin jacket. The heat shrink tubing jacket significantly improves the ability of the pigtail vires to vithstand chemical submergence by adding a protective layer of material over the Kapton insulation. %here applied, the protective layer of heat shrink reduces the exposure of the Kapton insulation to the condensate. The typical failure of Kapton insulated vire is due to an abrasion of the insulating material during installation combined with the. effects of the chemical solution. The potential for abrasion or other mechanical damage of the Kapton insulation during installation at D. C. Cook has been essentially eliminated by the application of the heat shr'ink jacket.

3) The test report configuration, which exposed the Kapton insulated pigtails to the test chamber environment vga the

'1/4inch weep hole, demonstrates the ability of the pigtail wires to withstand harsh chemical conditions even without a protective heat shrink jacket.

En conclusion, we believe that the omittance oi the veep-hole in the flex conduit. near the instrument in the D. C. Cook configuration does not have a detrimental impact 'on the environmental cuaiiiicar.ion of the instrument, seal assembly or seal assembly pigtails. in addition, we believe that there is no significant func".'onal difference between the tested and the D.

C. Cook installed configurations of the foxboro instrument pigtail conduits.

K. J. MUNSON Approved KJM: rd:50,95 cc. T. 0. Argenta/S. H. Horowitz L. F. Caso/J. Y. Ruparel D. N. Turnberg/J. R. Anderson J. G. Feinstein - NS 5 L R. Shoberg/V. G. Sotos I 8 C NtX No. REE-86-07-1/Reslog 860501

SQUAT Qepor; No. 45592-4 PAGE NO PROCEDURE NQ.

16 45592-2 t

Revision A

'.0 TRANSN., HR E- -.:- - ~,'<C:"3 NIC ~ INTER~ACES Re uirements

~ I t wee ke e "'ctr cal r..-.= "=a= nc

~

The Kapton px".ta

' =rot=~ding rom thc Conax stainless s cel feed-through shall bliess '"e .":otec=ed using 1/2" f lcxible metal conduit. The conduit shal'e attached to the transmitter interface by means of the conduit, i nter ace =onnec'tor on each of the conductor seal assem-

. The unattached end of the conduit shall be permanently a ffixed to the s ide of he mounting bracket ass emb ly to minimize any delete-rious effects on che nterf ace due to handling.

CAUTION: ether, connecting the flexible condui to the midlock cap, Do vc. a'iov the cap to rotate R.otation vill damape iotas: ty of .he m dlock cap seal.

The three (3) transmitters supplied with integral junction boxes shall be equipped with 18se of flexible metal conduit. in the same manner as those fittings with the Foxboro-supplied Conax electrical conductor seal assemblies ~ However, the conduit will not be instal led un'.l the pre-LOCA transmitter test setup.

In addition, a '/4" weep ho' shall be d"' 'd in the condue t at the lowest point, . 's arc to fac'i tat e drainage of accumulated cheeni cal spray, steam condensation, etc e s during "'".e acc'erat si oui ati ore ~

12 ~ le2 ts(ccharical Znterfacinc Inlet supply pressure adaptors shall be permanently attached tc the

""ansmitters us '.g the Swage lok fittings suppl 'd by the manuf acturcr .

The supply 'ines s.'-all be made from 3/8" s mi.='css steel tu 'g wi"te f

one erd lar sad and equipped wi=". an AN la=e f fi tting. The cpoosite end s)eall be "ebu"red and 1 f untouched to acce" t. Ne Swagelok compression = -.g.

12 ~ 2 Procedures

12. 2. 1 Electrical Znterf ac n A. Direct Tra.".sm' er Input 12 ~ 2 1 ~ 1

~ Cut a piece of /2" " exible metal conduit apprcximatelv 18" in leng '.". ~

12. 2. 1 ~ 2 Znstall two (2) st" aight flexible conduit fit 'gs, one ( 1) on each end o f the condui t .

NOTE: The f' ing at the end farthest,from the midlock cap should also corta' a stra'n relief adaptor.

WYLE LABORATORIES Hulitfetll~ Earthly

~ >OSd.t M Od::1

e ~ ~ ~ sa Report No. 4559P.-4

?AGE NC p~-g~< NO. 45592-2 1/2" ~~ CCHCQ~-

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Page .'lo. EE-24 Report Ko. 45592-4

?ace No. 1VB

.est Procedure No, 4 592-2 This page 'atent era'y leit blank.

r g <<C,'II@ i ~

Re jor t No. 45592-4

~is page intentionally left blank.

WYLK UL8OAATOQIK5 HuhtSvill~ F ICllltg

r'4~a ~so, l o c o Repart NO. 45592-4 PAGE NO 13

, g5T pRQQEDUAK NO.

4 wggatQQ~~gg ~~  % vt'e g~ A g'++AC 5 (Continued) so ~

Drill a 1. q" wee= .-."'e approxzmatelv -.": cm the transmit er inter ace connectc CT  : Re erence : cu e for the remang steps.

12 2 1 4 Drill a 6/32 screw =: earance hcle in the mounting bracket assembly as snown.

12.2.1.5 place a 4" piece o: Raychem sleev'ng over the Kapton pigtails approx'-

mately 16"-20" frcm =he transmitter to act as a strain relief point.

12.2.1:6 Careful'y eed =he " -"ta 's and Cdnax stainless steel feedthrpugh ~

into the f'ex b'e concuxt.

12. 2. l. 7 Attach the condu'." -'ng to the Conax interface fit ing. Before tightening the nte face, rotate the conduit until the weep hole is posit oned as snown.

2218 Tighten the interface connections and arc the flexible conduit around to the mount.ng bracket wnile insuruig tha the ECSA iS.-

not disturbed.

12.2.1.9 Attach the corcu " =o ".he mounting bracket assembly using 6/32" hardware (screw, nut and lock washer) and a conduxt mounting strap.

Tighten the stra n reef adaptor around the Raychem sleeve installed in step 12.2.1,5.

12.2.1.10 Photograph the transmitter to document the installation of the elect cal interface protection.

'. 2. ' ll Repea steps 12. 2. 1. 'hrough 12. 2. 1.10 for each t"ansmit er B. Intecral =unc='on Box Input

12. 2.1.1 Cut a piece of 1/2" flexible metal concuit aporcximately 18" in length.

'2.2.1.2 Install two (2) straht lexible conduit fittings, one (1) on each end of the condu t.

NOTE: .he  !. ==inc at the end farthest from he -box input should a'so ="n"a a strain relic adaptor.

12.2.1.3 Drill a 1/4" ~eep hc'e approximately 3" frcm the ='ansmitter inter-face connecter.

12.2-1 ~ 4 Drill a 6/32" stre* c'earance ho'e in the mount ng bracket assembly ~

12. 2 Place a 4" =;e e "f sleev~nc cv>> tne Kacton p'gtails acp ox-'-

mate'y .'6--2"- tra. smxtte to ac: as a stra'.". relxe point.

Splat 1)5 ~ ) 4ci W YLE LABOAATORIES HutltSv<ll~ S ACty

Rcport No 45592-4 PAGE KO TES7 PROCEDURE KO. 45 92-2

-~ANSyT ~~q ".. -. R-.CA, i~~" >3::."A~ i'.(."=RFACZS (Continued)

~

ke g g o

~

e ~ 0 Attach the onduit .":= ng to the J-box input. Before tightening unt

~ ~

inter ace, " tate the corduzt the weep hole is positioned at the loves" "o .".= " he ar".

1". 2.1. 7 Carefully !eed the p.ctaxls into the flexible conduit until they enter the J-box..nstall a noninsulated czimp spade lug to each lead and connect them to ".e terminal within the J-box.

~a ~ e ~ a1 8 Tighten the ..".=e face "onnections and arc the flexible conduit azound to the mount ng "zacket.

12, 2.1. 9 Attach the conduct to the mounting bracket assembly using 6/p2" hardware (screw, nut and lock vasher) and a conduit mounting strap..

T'ghten "he st"ain re1 ef adaptor around the Raychem sleeve installed in step 12.2.'. 5.

12.2.1.'10 Photograph the transmitter to document the installation of the electrical interface protection.

12.2.1.11 Repeat steps 12.2.1.1 through 12.2.1.10 for each transmi ter 'with integral junction box inputs.

2 2 2 Mechanical :ntcrfac n 12.2.2.1 "ut a piece o. 3/8" sta'n'ess steel tubing and debur" each end.

12.2.2.2 F'are one end and slip on a 3/8" stainless steel "B" nut.

12.2.2.3 Bend the tubing as shown in Figure 2.

12. 2. 2. 4 Place the Swagelok compression nut and fitting ove" he unflared end o! the tu'"ing. Connect the tubing to the remain ng section of the Swagelok fitting mounted on the inlet port(s) o! the transmittc as shown in Figure 2 using standard Swagelok proceduz s.

1+ ~ e') ~ Position the tubing ac 1 1 ~ 0 as shown in Figure 2 'and tighten ='".e fitting!s) .

12.2.2.6 Attach the tubing to "he mounting bracket assembly using 6/32 hardware (screws, nuts ard lock washers) and a 3/8" tube mounting strao.

'2.2,2.7 Photograph each transm'tter to document the installation of the mechanical in=c face.

12.2.2.8 Repeat steps '2.2.2.1 t.""ough 12.2.2.7 for each transr.'t er.

WYLE lABORATOAIE5 BOAS 1054 7 1@i OCi

~unlSriil ~ FiC>lite

5 e p QT c:8 . '< ) o J c - 4 ~ ~ ~

TEST PROCEDURE NO 45

~S <<~o+Q g~(

Reaui ements

~ <<es sure Test

"-:essuze Test s."a ' '"e cezf c.."ed =n eac.". zansmitter to ' 'v t'~

-ressure integr'y of =he -ea: s. A pressure medium of -'".: gaseous nitrogen shall be ape' ed =c he transmitter input pressure ports using a high-pressure reg 'tor as snown in Figures 3 and 3A ~ The applied pressure shall be mon tored using a 0. 1 1 F ~ S ~ pressure gauge. During -his test, vo'age shall not be applied to the transmitter.

T'h e applied pressures shall be suppl'ed to the transmitters in the follow$ ng manner foz a durat'on of not less than 1 minute:

o The d' erertia'ressure transmitter shall have both pressure nput ports oressuzi-ed simultaneously to the corresponding overpressure listed below:

Aodel No ~ Cver"ressure ( si )

N-E13DH-:7~1 3000 N- E 1 3 D H - H Z.'! 1 4 500 N-E13DH- Hl j 4=;0 The gauge pressure tzansm ezs shall have their single pressure $ nput poz= pressurized to the corresponding overpressuze listed below:

)$ ode 1 No . Cveroressure ( si )

N-El 1GiM-HIE2 4000 N-El 1GH- I ZN2 4 500 All body seals shall be leak che ke= using chlorine- fzee bubble solution, and any seal leakage ' ".-.. a "=ansmi ter shall be evaluated by tne Lead Customer.

Leak Test A Leak Test shall be perf czmed, whe e specif ied duzing all Func 'na '

ests with the exceot'n cf he Baseline and Post-LOCA Tests fy =he pressure xntegr ty of the seal, a pressure medium of dzy gaseous

..o ver nitrogen shall be a "p'd to =he transm tter input "ressure oort s ) (

using the Harotta System as shcwr. zn F$ guze 4. The aoplied pressure shall be mon$ ored s$ ng a O. 1~ F.S. pr ssure gauge. Du in tn s test, $ rout vol tag e s.".a ' nc-. be atr 'd o th tza.-.s-.i

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SEAL ASSEMBLY AND CONDQCTOR JACKET (BY NFR) bEFORE SHRZNXZNC 5 ~ TERHINATE ZNSTRQHENT CALI ]

COUPLING SHIELD ~

03 g'-SEALTITE CONNECTOR 418 4" FLEXIBLE CONDUIT 2'~ MIN (2) 41S AMQ EAPTOM PIGThILS NITS HEAT SHRINKABIZ POLYOLEPIH JhCKBT 403 (BY MFR)

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NUCLEAR PLANT ONLY o4-2'rat INDIANA8 MICHIGANELE,CT Ca, D.C. CppK NUCt.EAR PLANT ELECTRICAl PLANT SECTION PLANT DESIGN STANDARD REYISIQN I

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I-lO-85 FOXBORO NE SERIES TRANSNITTER CONNECTION DETAILS APP DR. 5.K. CH. OATK AMERICAN ELECTRIC POWER SERVICE CORP COLUMBUS,OH. I-2 KOS 343+ SH. 1 OF 6

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G Cable Jacket Shim Conductor Shim Inot shown)

J Splice Sealing Sleeve 'QE Conductor Sealing Breakout QK Outer Sealing Sleeve C

NOTES s '

l. Splice to be, made using RAYCHEN SPLICE KIT. NPKS-2-21K For use range of XAPTON insulated wires s conductor, see Table A belov.

2ABLE of Conductor and Kapton Mire Dimensions A.'anges for Use in Ra chem Nuclear Plant Solice Kits t

Insulated AEP Cable Jacket Conductor Kapton Insulated Item No. Kit No. Outer Diameter Outer Diameter Hire

$ 110 NPKS-2-21K 0.31' 0,60" 0. 11 0. 23 816AHG I12AMG p~ pc;ol-28'zf oz-zrzS Number in refer to ~M 1788 INOIANA8 MICHIGANELECT Co. O.C. COOK NUCLEAR PLANT P DS ">3'<~

ELECTRICAL P L ANT SECTION REVISIO . I ~ggpep mF Jr-Pici PLANT DESIGN STANDARD Wgru>~ I rA R APP D ~, DR, CH. Q DATE~ E AMERICAN ELECTRIC POWER SERVICE CORP. COLUM8US)OH.

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INSTRUCT ZOOS PREPARATION 1~ Confirm that the kit selectedEnsure is designated for the intended that the cable and terminations (STP or STQ) ~ feedthrough conductor diameters are within the ranges specified in Table g of this PDS or the kit's label ~

2 ~ Remove all felted asbestos or braided )acketing material from the insulation in the splice area. Splice sealing sleeve (part J) vill not seal to braided or voven surfaces.

3 Cut the end of the cable off square. Remove )acket material, tapes', fillers, shield foil and binders for a length of 3.5 incheg

~

from the end.

Cut the end of the feedthrough wire off square. Untwist.the vfreg as required'o install'ubing.

5.. Rea50ve'dirt; grease and other contaainants from'he cabl'Q.)gck\t and all insulated conductor areas vhich vill make contact vith components of the kit vith a rag dampened, but not saturated, in an approved solvent such as alcohol or acetone..

INSTALLATION

1. Slide the conductor shims, Part R (not shovn in Fig. A) oyer the Kapton insulated wires.

Align vith the insulation cutback. SHRINK IN PLACE,

2. When cable )acket- shim,'art G, 'is supplied> install shim over the multi-conductor canoe )acket. INFRA align to within 1/d'f the cable )acket cutback. SHRINK IN PLACE.

l

3. Slide the outer sealing sleeve, part K over the multi-conductor cable 5acket. DO NOT SHRINK.

4. -. Thread each Kapton'insulated conductor through. a leg of. the, Conductor Sealing Breakout, Part E. Ensure that the large open end faces the splice area. DO NOg SHRINK.RX<<I~E<+ls I

)if>g +/g 41+$ 8 8h 4F+c/o. 0'8/4'4&4 & (g.( p'/g/5PA. as@ ~ f'gP I+.gyp) 5 ~ Slide one splice sealing sleeve, Part J, over each Kapton insulated conductor except for the sera cnonductor. DO NOT SHRINK NOTE'. Splice sealing sleeves are not used on the drain wire.

6. Strip 1/4" of insulation from the end of the cable conductors, shield vire and feedthrough vireee i~ rvuCcFM wrrtr P'retc, INDIANA8 MICHIGAN ELECT Co. D.C. COOK NUCLEAR PLANT Pos-r3'~l-

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ELECTRCAl. P L ANT SECTIOItI I PLANT DESiGN STANDARD I I- lo- 85 /Cger~/'/f g cl APP DR. CH. 55 DATE ri-8'- F> Q~/Sf eCyYCH AMERICA LECTRIC POWER SERVICE CORP. COLUMBUS)0K I-2-EDS-W-I SH. 4 OF 8

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7, Complet crimp connections betveen e cable conductors and the feedthrough vires using a Burndy YSV1i connector and the appropriate crimping tool. Ensure that vire is visible through holes in sleeve. Examine each connection area for sharp edges and protruding vire strands. Remove....

these vith abrasive cloth or a file.

8. Center splice sealing sleeves, Parts J, over each connection area. SHRINK IN PLACE.

9. Slide the breakout body over the splice sealing sleeves.

Ensure that Parts J do not protrude into the breakout legs. SHRZNK ZN PLACE.

10. center the outer sealing sleeve, Part K, over the assembly such as that it covers the breakout ance overlaps the cable jacket by 3" or overlaps the shim, when used. SHRINK IN PLACE.

CAUTION: DO NOT FLEX UNTIL COMFORTABLE TO TOUCH ~

KIT REM6VAI INSTRUCTIONS ~ ~ ~0 If the installed kit must bc removed, the following procedure may be used to prevent conductor damage~

l. - Harm the outer sealing sleeve with..a .taxch or heat gun..Using;..

a razor or sharp knive, score Part E longitudianally over its entire length at a depth of approximately 50 to 758 o5.

Do not scar cable acket. its'hickness.

2 ~ Gradually heat the entire surface of the sleeve. Using pliers, peel away sleeve along the cut area while continuing to apply heat.

3 ~ This process can be repeated for each component of the Raychem splice kitt however, care must be taken not to damage the cable.

Remove as much of the old adhesive as possible prior to installating .a, ncv kit'.

'4 Ctfg ia meed Curt r@h+WP~CP INDIANA8 MICHIGANELECT Co. D.C. COOK NUCLEAR PLANT PDS-tS di-ELECTRCAI. PLANT SECTIOItI RarISIO a~Sn~~ >+

APP D PLANT DESIGN STANDARD

~ DR. CH.

87 2 ll-l0.95 FR DATE jr-8-f Cocle c=C D I+ +if th < J

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RFC Nos, DC 01 2827 4 X 02 2828

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A licable Instruments BLP-110 NLP-151 NPP-151 BLP-ill Nr.P-152 NPP 152 BLP 112 NLP 153 NPP-153 BLP-120 NPS-153 BLP-121 BLZ-110 BLP-122 BLZ-120 'NPS-121 BLP-130 'LZ-130 NPS-122 BLP-131 BLI-140 BLP-132 MPP-210 BLP-140 FFC-210 MPP-211 ALP-141 FFC-211 MPP-220

.Br.P-142 FFC"220 MPP-221 FFC-221 MPP-230

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. 'FC 110 ~

FFC 230" ~ " "" MPP~Q3X.

MFC-111 FFC-231 MPP-240 MFC-120 FFC-240 MPP-241 MFC-121 FFC-241 MPP-212 MFC-130 'PP 222 MFC-131 IFZ-051 MPP.-232, .

MFC-140 'IFI-052 &P-24%

MFC-141 IFI-053 ZFZ-054 IFI-310 ZFI-320 FOR U&E, lhl NUCLEAR PLANT QNIY INDIANA8 MICHIGANELECT Co. D.C. COOK NUCl.EAR PLANT PDs- I34I-I KLKCTRICAt. PLANT SECTION REVISIO FOXBURO NE SERIES PLANT DESIGN STANDARD ,g , }i-I0-8 TRANSMITTER CONNECTION DETAILS APP DR. g. CH DATK 4" IS-85 AMERICAN ELECTRIC POWER SERVICE CORP. COLUMBUS)OH I-8 EDS-343 I SH.6 OF6

Attachment 5 to AEP:NRC:0775AN Limitorque Actuator Part 21 Report

inniana Micngan power Camnany PO Sox::631 Ca um"'-5, iH >37'=,

(NODRA NKHEOiAN PONS'EP:NRC:0971E Donald C. Cook uclear Plane Units Nos.

'. 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-?4 TkgS lS A ENVIRONMENTAL QUALIFICATION OF TORQUE S'4ITC ES Q "j$ P '>RD U. S . Nuclear Re gu1a tory Commission . DA;E R".C':

Attn: Document Control Desk DATE r.~~.

Mashington, D. C. 20555 Attn: T. E. Murl.ey April 4, 1988

Dear Dr. Murl.ey:

NSjkL SECTION This letter provides a written report confirming the telephone conversation of March 30, 1988, between Indiana Michigan Power and the NRC Operations Center, regarding notification made pursuant to Title 10 CFR Part 21.

On March 30, 1988, American Electric Power Service Corporation received notification from Limitorque Corporation that the torque switch design employed on some valve operators in use at Cook Nuclear Plant have not been qualification tested for nuclear safety related service. These valve operators are Limitorque Model SMB that incorporate a design used during the first few years this model was produced.

Based on our evaluations, which considered the lack of torque switch qualification tests, we believe that safe plant operation will continue to be maintained.

Additional details are included in the attachment, For further details on clarification, Mr. Paul A. Barrett, Manager, Nuclear Safety and Licensing, can be reached ar, 614/223-2040.

- Dr. Nurley AEP: NRC: 097l.E This document has been prepared following Corporate procedures which incorporate a reasonable set of controls to ensure its accuracy and comp'eteness prior to signature by the undersigned..

Sincerely, M. P. Al ich Vice Presiden-eh Attachment cc: D. H. Villiams, r.

V. G. Smith, ~r. - Bridgman R. C. Gal len G. Bruchmann G. Charnoff NRC Resident Inspector - Bridgman A. B. Davis - Region III for AEP:NRC:0971E Page 1 INDIANA MICHIGAN POWER DONALD C. COOK NUCLEAR PIANT Attachment to 10 CFR 21 Letter Environmental uglification of Tor ue Switches Back round and Discover of Defect Acceptable types of materials used in the switch body and dielectric of Limitorque valve operators were presented as a portion of environmental qualification training given to plant personnel. This training identified the acceptable types of torque switch materials to be 1imited to white melamine, brown fibrite, and red or black durez. Plant maintenance personnel recalled a fourth type of material (also brown in color) used in installed Model SMB-00 valve operators. The material appears to be a laminated phenolic. These switches can be mistaken for the qualified fibrite switches because of their brown color. Thus, "-

the potential exists for torque switches which have not been qualification tested.

A review of Limitorque.Model SMB-00 valve operators in use at Cook Nuclear Plant revealed a total of 70 such operators. Condition Report (Deficiency Report) 12-3-88;0450 was initiated on March 25, 1988 to investigate the qualification of these valve operators.

A suspect torque switch was sent to Limitorque Corporation and was analyred. The Limitorque Corporation review revealed that this torque switch design (1) was used during the first few years Model SMB-00 was produced and (2) has not been qualification tested for nuclear safety related service. Notification of this finding was received by American Electric Power Service Corporation on'arch 30, 1988.

Corrective Action The untested torque switches will either be replaced during the next respective Unit 1 and Unit 2 refueling outages or the existing torque switch design will be confirmed to be qualified by an acceptable test.

Locations of Tor ue Switches Limitorque Model SMB-00 valve operators using the untested laminated phenolic material in the torque switch design are potentially installed on the following Cook. Nuclear Plant valves:

Attachment 1 for AEP:NRC:0971E Page 2 O~ri dual Valve Number Uni.t s ~Su lier CMO-419 1 and 2 CCW from RHR Heat Exchanger Centerline CMO-429 1 and 2 CCV from RHR Heat Exchanger Centerline IMO-212 1 and 2 CTS Pump Eductor/Mini Flow Wallworth IMO-222 1 and 2 CTS Pump Eductor/Mini Flov Vallworth ICM-260 2 SI Pump Discharge Wallworth ICM-265 2 SI Pump Discharge Wallvorth IMO-262 1 and 2 SI Pump Mini Flov/RVST Return Westinghouse IMO-263 1 and 2 SI Pump Mini Flow/RWST Return Westinghouse IMO-270 1 and 2 SI Pump Discharge Cross-Tie Wallvorth IMO-275 1 and 2 SI Pump Discharge Cross-Tie Wallvorth IMO-312 1 and 2 RHR Pump Mini Flov Westinghouse IMO-322 1 and 2 RHR Pump Mini Flow Westinghouse IMO-314 1 and 2 RHR Pump Discharge Cross-Tie Anchor Darling IMO-324 1 RHR Pump Discharge Cross-Tie Westinghouse IMO-324 2 RHR Pump Discharge Cross-Tie Anchor Darling IMO-320 l and2 RHR Pump Suction from RWST Westinghouse Wallwarth IMO-330 1 and 2 RHR Sprays IMO-331 1 and 2 RHR Sprays Wallvorth IMO-360 1 and 2 SI/CCP Suction Cross-Tie Vestinghouse IMO-361 1 and 2 SI/CCP Suction Cross-Tie Westinghouse IMO-362 1 and 2 SI/CCP Suction Cross-Tie Westinghouse IMO-910 1and2 CCP Suction From RWST Vestinghouse IMO-911 1 and 2 CCP Suction from RWST Westinghouse MCM-221 1 and 2 Main Steam to AFW Terry Turbine Rockwell MCM-231 1 and 2 Main Steam to AFV Terry Turbine Rockwell NMO-151 1 and 2 Pressurizer PORU Block Ualve Westinghouse NMO-152 1 and 2 Pressurizer PORU Block Ualve Westinghouse NMO-153 1 and 2 Pressurizer PORV Block Valve Westinghouse QCM-250 1 and 2 RCP Seal Return Vestinghouse QMO-225 1 and 2 CCP Mini Flov Westinghouse QMO-226 1 and 2 CCP Mini Flow 2 Westinghouse VMO-101 land 2 CEQ Fan Suction (H2 Skimmer) Fisher VMO-102 1 and 2 CEQ Fan Suction (H Skimmer) Fisher WMO-721 1 Diesel Generator After Coolers ESW Centerline WMO-722 2 Diesel Generator After Coolers ESW Centerline WMO-723 1 Diesel Generator After Coolers ESW Centerline WMO-724 2 Diesel Generator After Coolers ESW Centerline WMO-725 1 Diesel Generator After Coolers ESW Centerline WMO-726 2 Diesel Generator After Coolers ESW Centerline WMO-727 1 Diesel Generator After Coolers ESW Centerline WMO-728 2 Diesel Generator After Coolers ESV Centerline