ML18114A522

Responds to NRC Requesting Addl Info Re Environ Qualification Testing Performed on Continental Instrument Cable Presently in Use

ML18114A522
Person / Time
Site:	Surry
Issue date:	05/03/1979
From:	James O'Reilly VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NUDOCS 7905070460
Download: ML18114A522 (17)

Text

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VIRGINIA ELECTRIC AND POWER COMPANY RIOHMOND, VIRGINIA 23261 May 3,' J979 Mr. Harold*R. Denton; Director Office*of Nuclear Reactor Regulation Attn:

Mr. Albert. Schweil.cer*

u.* S. Nuclear.Regulatory Commission Washington; D. c.*

20555

Dear Mr; Denton:

Serial No. 292 PO/FHT:scj*

Docket Nos.* 50...:280*

50...:281 License Nos. **DPR-32

. DPR-37 In response.to*your letter.of.February 22; 1979; requesting addition-al information concerning.the*environmental qualification testing performed on the Continental Instrument Cable in use at Surry Power* Station, we:are providing the.following information.

1.

• NRC request:*.* *Provide the* basis for. concludi.ng

• that therinal aging of cable samples at 100°C for 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> simulates an additional thirty--

three (33)' years of in..,.plant use at a ma.ximum ambient temperature of 50°C.

These*accelerated.aging parameters were used in test sequence 1 on page 10 of the test.report submitted with VEPCO letter*dated December* 15, 1978' *

. Response:* We have.reviewed data provided by the cable manufacturer~

Anaconda/Continental,*on the.ag~ng properties*of itscross--linked

.polyethylene compound, cc:,..2210; This material was used for.the insu--

lation of the*subject instrument cable installed at Surry.

Data on the*.aging* properties* of. this material* are shown on attachment 1 in the form of an Arrenhius curve, the slope of which was.determined using aging points* of 90°C for 40 years* and.150°C for 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br />.*

The*thirty-.three*years of accelerated.aging was based.on a nominal forty*year plant life minus the seven*years the cable sample was in use~* The.test sample was subjected'to an'accelerated' aging of 100°c for 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> to simulate thirty--t'hree years of in-plant aging.

To translate*60 hours at l00°C into*equivalent lifetimes* at different

. temperatures~

• a line is plotted* on attachment 1 *parallel* to*. the* line

.representing the'inanufacturer's data through.the 60' hours at 100°C.

point *. The' cable "can be' considered. to. be at ambient temperatures due to*.negligible I2R losses since* the* cable* is used* for instrumentation.

Containment average bulk air temper~ture.is 40°C (see*note below).

From the line plotted~ it is seen that.at 40°c,* a :150..,.year life is indicated and at 45°c,* a: 53-:-year life is indicated.

Thus, the aging process used is judged to. be acceptable~*

?90507D£f 60 f

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VIRGINIA ELECTRIC AND PowER CoMPANY To Mr~ Harold R. Denton 2

NOTE:** In the past;* the. containment. temperature has been s_ignifi-

.

• cantly greater* thari :40°c. *. The* effect this has on cable life is

. included* in our*. test since *.. the* cable. sample was removed* from the station.

A modification has been.made to the containment

.cooling system*to*ensure ii maintained.temperature.of :40°c in

.the* future.*

2.* NRG.Request:

Provide the*test*report ftoril Haveg Industries*showirig the data* of the*.measutements of physical and electrical properties*

of the* cable* samples.*. This report was committed to* be forwarded as an Addendum to*the.test*report.(Refertoiteni6, page 12 of. the.test

. report submitted* with VEPCO letter* dated December* '15, 1978) **

Response: *.

We are. forwarding as Attachment 2,Addendum 1 to Test* Report IPS....:3g3. *covering Haveg Industries~. Inc.; Analysis* of:* Inst:ttllileli.tation

• Cable, Samples*: for-* Virginia *Electric,. and* Power* Company.

• Please* note*

• that certain of the.tests were riot performed due to the inability to obtain *suitable* test** specimens.

• If you have any questions*or require iidditional*information, please contact this office.

cc:

Mr~ James P. O'Reilly Very truly yours, 6.>>;,~~+

C *

• M. Stallings Vice President-Power Supply and Production Operations

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CONAX CORPORATION 2300 Wa!8en /we l1ut:a10. New York. 14225 No. IPS-383 ADDENDUM NUMBER 1 TO TEST REPORT IPS-383 COVERING HAVEG INDUSTRIES, INC.

Addendum 1 ANALYSIS OF INSTRUMENTATION CABLE SP.JvIFLE S FOR VIRGINIA ELECTRIC AND POwER' CO.

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IPS-383 icoNAX CONAX CORPORATION 2300 wa;d<Jn A-."2 l3u'.ialu. New York 14225 Addendum 1 ABSTFACT This addendu..~ incorporates the results of testing performed by Ha.veg Industries, Inc. on VEPCO Instrument Cable Samples.

supplied to them by Cona.x Corporation.

The results of this testing is included in Haveg Engineering Report #2645 which forms a part of this addendum.

This testing involved the measurement of physical and elec-trical pr_operties of-Instrum_ent Cable* S_amples, selected at various stages of the test.program conducted by Conax for VEPCO and reported in IPS-383.

This information is presented for analysis by the Virginia Electric _and Power Company, as it pertains to specifications foi Surry Power Statio;s, Units 1 and 2.

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• CONA,'< CORPORATION 2300 Wil;ucn iwc. llullalu. New York 14225 1.0 References 1.1 Page 7 of IPS-383 1.2 Page 12, Paragraph 6 of IPS-383 No..

IPS-383 Addendum 1 1.3 Haveg Industries, Inc. Certificate of Compliance.

(dated 1-13-79) included ~erein.

2.0 Condition of Cable Samples Measured Sample #1 lIT-496 Thermally aged 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> at l00°C and Irradi2.ted to 20 Megarad ciosa~e.

Samule #3 lIT-496 Thermally aged 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> at*l00°C and Irradiated to 20 Kilorad dosage.

S arnn 1 e iJ 4 1 IT-4 9 6 As received from VEPCO Samule fJ6 2LF4 Thermally aged 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> at l00°C, Iiradiated to 20 Kilorads dosage and subjected to MSLB ffl Test.

Sample ff7 2LF4 Thermally aged 60 hours6.944444e-4 days <br />0.0167 hours <br />9.920635e-5 weeks <br />2.283e-5 months <br /> at 100°C, Irradiated*to 20 Megarads dosage and subjected to LOCA Test.

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CONAX CORPORATION 2300 Walden Ave. Bulla!o, New York 14225 l~-

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IPS-383 Addendum l REC~'IVED P. 0. Box 7, Winooski, Vermont 05404

._ii.i_ N l 5 *1979 PURCHASING DEPT.

CERTIFICATE OF COMPLIANCE Shipped to:

CONAX CORPORATION 2300 WALDEN AVE BUFFALO, NEW YORK TESTING 14225 Date 1-13-79 Purchase Order 54 719 Our o;der 30908 TESTED TO

. We hereby certify that the yi_rr$IciNG above purchase order issued by you was~~~iA~oonform to applicable

• s,peci'fications or requiremenfs.

Applicable specifications (latest issue) :

COMPANY PART i'JO :

99-00000 HAVEG INDUSTRIES, INC.

CAr~~ ;;;! /?7tvu4Fi Manager -

Quality and Reliability

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!~VEG INDUSTRifS INC.

l'JlRE

[i CABLE DIVISION I'. 0. BOX 7

\\/-.[NOOSKI, Vrni,10:./T 05404 CON/\\X TESTING 16 02050 7 2C l!:1vcg Engineering report # 2645 Te.st Laboratory I!avcg Industries Inc.

11/in: c; Cable Division Test Laboratory Colchester, Vcrriont 05446 IPS-383 Addendum 1

, *H/\\V r~* I i/DllSTi'.-I r::;, I i/C.

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P.O. i\\OX 7

\\*/Ir:OOS:~I, VT osr;o,1 e

1ff 1>01~9:*n{ rm.

264s DAT[

l-.S-79 q *-----*--------*

__ l~r~OJ~-~T 16 0250 7 00 2C

• ~-- SPf~_~_IPCEA S-66-5Z_4 ______

• ___________ T[Sl __

• ___ Insulation Resistance

/W~J_I [)_/ [)_;_\\)_* E__________

R[Oc..:_ P i\\P.t'\\. *-----'--- r:;L.tl iOD P-/\\_R._t1--6-.-1-s--

ornrn R[fTf(rncrn oor:ur,:rnTs TE ST D/\\TE T Hi[ ST /\\:ff THiE STOP

-~-----------

[)/\\TE co:-:t1LCTED

==

Requirement _____

The insulation resistance shall be measured after the completed cable.

/\\'--'-1 terr:i_atinP current vol taf'('. tests or he fore anv direct current

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".olt.i..gc test spccifircl.i1L.p.D.I.J. 6.14.

1*:hcrc the volta[Jc tests are mo.d~ _ _Q_r).._yi re or cahl c* ir:imersed i11 \\\\'atcr, the insula ti.on re.si stance

---

~sha1_1 he measured while tf1c cable is sti ll_1_*m_m_, c_r __ s_e_t_L _______ _

Rc~ults

---.----~*

or~l.1J:Ll~

1 )~ __________ ___,_IH:Gor l:'!S~_-JfJ-'-'0""'"'0--"-f=e=c-=-t-_____ _

( -*--

_.__~li..... l ~n cl.....:~~------

21, ~3.8_...nn."'"1 _______

__.c. _____

-*-. -.. ____________ __,,_1,l_t.it_Q_ C.Qllil _________ ~*--"3'...:.0'..J 6 IS, OC~l('-'-1 ________ _

3 black cond could not obtain white concl 36,859,000

---

:----~---------------

4 black. cond 49,728,000 whitb cond 43,214 000 6

black con<l 23,386,000 7

hl:',cl~ cond 67,520,000

_____________ _:_.oo_t..e_c_QD.cl ___________ n_......,.,.:i.1....7,.,_6......,,.o;;...o"---------------'-

---

**-----------------------------------* -----------~--

/{--;-T-:-"l j ('j C 'I l

<"I"' 'ISO!) (JI" I(*!' s*[l)"lrrr I

.ocrs nrri

• t.\\, _ ~*~ ___ l"_I..'~_1 _,. _, ~*'------ --**(*~'

~. - *-<:~*,...

~,_,; l,,_ I *)_ _

_. ________ :._~\\.":.~J_:,_~\\;___ __

~-- --------------*--- _____ --,y------~-_t( C:,--:--*~'-<'-~- --____ J. -------------

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HA VE'(; J ilDUSTfU [S, INC.

\\.Jlf([ [, Cf\\i\\LL DIVIsrori P.O. tlOXl WINOOS~I, VT 05~04 REPO-U-!R NO. _26~4_5 ____

D/\\TE l-s...:79 rrwoucr 16 02so 1 oo 2c SP[_* C __

I _PC_L_: A ___

s_-6_6_-_5=2-4------------,Tf;-:;:-*

O i e 1 e ct ri c,-.;i-. t-}-1s_t_a_n_cl_i_n_g ____ j_a_c_k_e_t M1Errn;nr1rr-:

B.CiL__C/\\Ef\\_.

I r-1r1_1100 Pi\\R/\\ 4. s. 7 ornrn r1cr-rnrncrn oocu:-1r::rns TEST DATE TI ME ST/1RT TJME STOP ------------

D /\\l [ cm-1rLETED

~t,,,__,s.....,:._ __ "'-'Specim_cns~_all be formed into the shape of a lJ.

,\\11 conductors sh~~!J... ~<:!_q_lcctrically con1!s... c::tcd torcthc:r with the shield on both

---

~nds of the spc>ci men*

Thc___s_peci 1ncn sha 11 he imm.crsccl onc_jiou~r,__ __

_________ minimum.

The test vo... !ta~~~ shall he 1.0 KV one minu."'-"'-'~-----

Results:

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______ __._n..... s-s~e-d _______________________ ---...; __ _

3 Passed p

O_C.\\~ __ Q..__/\\_R _____ _

PAGE 2

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\\,/1 !(( [, Uil\\L f: DIVIS I OU P. Cl. IWX J REf'Wum r-:o.

. D11TE

645 1-8-79 w 1 r:.oosu, VT osr: 0,1

. _____ ?!~QP_LL[_I ___ lG n2sn 7 on 2,-!-c:,___ ______ _

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SP[C IPCl:A r, er r 11l Tf.ST l

___ :-,_- )..:.)-:).__:_______

Ditlcct:ric 1,lfhstanc ina ~ r'_ri.,narvs

,-:t!i tt f\\r,:um;D!\\TE

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IF"(). rr1_F!~-

I i:i[T!JOD P1iRl\\__._z_._B. 9. 3 OTll[P. f~EFE.RU:crn DOCU:*;[inS Tl i*i[ STM'.T

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1*----

TI i*~E STOP

---

* _______ :__ ______ ~-----

DATE CO>'.PLETED

---

=============-----

• ========

~~n=t==---~T=h=c_1=*nsulatcd conductors shall withstand for five minutes either the a1tcrnatinp crnent or direct test voltage of 2.5 KV.

Resultc;:

Sample No.

.. ]

h 1 o c:.L.u:m p "c;c !

white concl Passed 3

black cond Failed at.iSOOkv 1,1hi te cond Passed 4

hlcick concl Passed white cond Passecl G black con<l Passed l'v'.hi te cone!

Passed 7

black concl Passed

• • \\i.t.c_am ri].~d

H/1.V[C IIWUSH:ICS, me:.

1-/li~i: i', Cf\\BI_[ DIVISJU[l P.O. l\\OX 7 R[POI.U~R NO. 2645 ___

[)/\\TE 1-8-79

\\*/Ir/ODSf~l, VT OS 1;0,1

,t JJZOOUCT 16. 02SO 7 00 2C i.,,.

=3

• ~*

SPLC

_ Jf:Sl_ __ kns.i 1 <' and E.l.Qngation l\\i-i1J{Q/D1\\Tr;:_________

f([O. !'MU\\. ___

• lJi[JJIOD fl/\\fV\\~----

OT!IER FU-rnrnC[D occu:-:rnrs HST [)/\\TE TIMf: ST/\\RT THiE STOP

---

1------ --------------

0/\\TE cm-1!1LETED

=--=-*.::==-----*-:=..-::::* ---**=

Tl_ie tests could not he pcTformed because the insulation could not be removed fTom the conductor in a slug form.

The insulation woul<l stick to the conductor on each sample for each conductor.

The insulation was cxtrcn1cly hard to strip off. the conductor.

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( :JlrLJ_E_C.lJllI_c_IJ:0'~ ______.

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__ -Sur-::~v r so~_t:c~l) --~ ~~\\'. i_ ccs ___. _.

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_____ _Q_~!~-~Q/\\R

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\\-!If~E t, Cf\\!;l.[ DIVISlC:;

P. 0. [~OX 7

-REPOf~1\\*IR NO. ~5-__ _

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-1..::..."i_-.,_79..... * ---

WINOOS~l, VT OS40q ti- _- ______________ -_______________ PRODUCT _l_G_fl2.SQ 700 ?c*.

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CS/\\ C2 2. 2

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.. ( S 1 C)

Sf'EC

_ JE'.:IT Snec1f1c Inductive C'anantv 1'1 Po\\,er Facto-f*

M:Ef;_~J)f1l_l_

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f<[.Q..._1?\\!V\\_.

~FTHOD P/\\R/\\ ~1. 2~8....c.._4 __

ornrn nrrncr;c[D fl8CU:-';[ilTS TEST D/\\TE TI 1*1[ ST/\\f*'.T

---

l TrnE STOP

---

~-------------i Di\\TE CO:*'.rLETEO

==============-=:...=--=--=--=-=-=--=-=--=-=-=-=:--

==

Reguirement:_::...,_ __

__;___;A_IS foot spe~jmcn of wire from \\~hich all_ cov~rings over the insulation have heen removed, or the snecimen may be selected Results:

frow Production after-vulcanization and prior to the application Q_f_ri~ovcring::;..,.:_ The JJi.i d<lle 1 O fooJ:.... port'ion of t.bc c;ped Ben shall be immersed in dist*illcd water with the 2!z foot portion at ~ach end kept above the water as leakage insul~a~t~i~o~n~*-------

This statement 1, i 11 be in e ffcct for Pap-e S of this report,...

Th_~-~-J:c st_ could not be conduct e<l under the rcgu=i-=-r...:.c.:.:cm...:.e~n...:.t......:::a-=-s--,-----

• --'-------~c;__tat_c.i:LM.OJLe.....he.c.;rnse the lengths aL.t..hc spcci.mcns that were

__,_,s_,_,1}mi.t.1..Q.c.l for t cs L _

_,\\cu-)E...,~ r__,,e,__,t..,.o,-'-'-..,.,_,.,~...,.__._-------------c'-------

• ---------_c..T~he _J1roce<lure that 1,as used for the testing is listed hefore

_________ ___,the re Slll t S on each [? a~e O"-f,._tswl..,__1i"-'s~rwC4p""'O'-'T'--'t...,,......_ _______ ~--*

H/\\\\'[:C INrll/STfU [S, IrlC.

\\*/lf{E c, C/\\l\\LE UJVIS1Ui1 P.O. BOX 7 REPO,U-IR NO. 2645

. DATE 1-3-19 l*IHJOO:-:J, VT 05404 rrrnnun 1 ci 0250 700 2c SPEC CSA C2 2. 2 1~~:-.S~-=.sl[__.aruLPo"'er ~:1 rt-nr 1\\1:If_N_D/i_)~~TE _______________________ B_[_(L _ _J'l\\_gf\\_.

-~~. ---,l~r~-1[~. ~~,~!O~D-r-,,-f'-,.f\\__--4-.~2-8_4 __

ornrn r~crrnrncrn DJCLE*i[t!TS TEST 0/\\TE TI ME ST flfn

---

~ ------ ------------

TIME STOP

---

~--------

D/\\TE cm<PL ETEO

-==------~--------===*----. ---------------=-=---c_:::c_-_--_---=-=---------*=~-=========

Proc~Lur:.c~*-------------'---------------------------

Each specimen was cut to a length of 12 inches.

The white conductor was connected to the unknown terminal and the black conductor 1.,*as al'.30 connected to the unknown, the drain wire was the ground.

The connections were to a G"--e"--n_ec.crc.cal Radio capacitance bri_d~g~e_. ___ -------~------

Sample No.

_l_

3 4

Th is type of a connection is tall.ed three terminal measurement.

Test results ljsted below:

Ca_Faci tan cc Power Factor (i__,.] _ _p_i_CQ fa rods ner ft 014 ?&

5.9 II II II

. 012%.

7.__Q II

. 013°~

6 2 II II 49<

0

~

IIMt:i~ irmw;rn r cs, me.

. ~!lf~[' f, rn1;u: [ll VISICtl P.0. BO>: 7 ru:1iorn /U*m rm.

e DATE 2G4S l-:,-=- 79 i"

U.

in r mos,: 1, VT o s~ 0,1

_;.__;:...........:c_:.:__ ___

PIWDUCT lCi 0250 7 00 2C SPEC CSA C22. 2 Tl:ST SIC f, Po,,er F.-i.ctor

___,B_[iL_ffiZ[\\ -. --

I t-';[TllOD P!\\Rl\\ 4. 284

/\\M[tW/Dl\\l[

OT_H ~?_, _P.E_: f_~r_: f~["J_~QJ_Jn__Qrt_li.',_[ t __ lT_S _______

TJ_~T_Dj\\ TE TIM[ ST/\\R.T TIM[ STOP LP!~T[ COi*'.PL qJ_Q_=========

Procedure_. _____

E:1cf_~~)ecim~~vas ~ut to.'.l l_cngth of 12 inches.

The 1s*hite*

conductor was connected to the unknown :incl the drain wire h_'.'.lS connected t~ ground.

After the black con<lucto:* \\![as the u_n_kn_o1,*n and the dr.1 in* Hi re remained ground.

This type of connection is call eel tho.terminal meo.surement.

_______ Sample '.lo.

Capaci to.nee Power Factor white cond I

80.3.pico farads: per ft

. 014%

3 79.7 II

. 01 Po 8 ().._l_____1_ I II II fl

.01n 52_.Q II II II II

• 034%

7 91.9 II If fl

.025%

black concl I

82.4 "

If

.017%

~ ~s*

II If II II

.012%

81. 7 If II II

.013%

89.1 If If II II

• 034%

________ (.:._, ----------~.!_.:o_-------------~-=--.:...:__ ______ _

7

?i, 9 If II II Ii

• 02 5 go PAGE _

OF 9

I.

HF,VtG rnnusrn I ES' INC.

WIRE t C/\\GLL DIVISION P.O: GOX 7 e

RErr4t1 L\\*/R NO.....2.._..Gc..,.4~c;~-----

DATE l 79 _

WINOOSKI, VT 05404 PRODUCT 16 0250 7 oo 2c SPEC CSA C 22.2

---

!TEST srr and Power ~actor

_A_M_D_rn_/_D_A_T_E _________________ REO. P /\\Ri\\.

l METHOD P i\\Rl:\\_.__4_._2

• 8. 4 OTHER R[ FER EN CED DOCUMEtns TEST D/\\TE TI ME ST/\\RT TIME STOP D/\\TE COMPLETED Proc:cclurc Each spcc1mcn \\\\'as cut to a lcnoth of 12 inches.

-~-------------------

The white conductor 1*1as connected to the unk.1101-:n terminal ancJ the black. conductor. to the ground.

The diain 1-:i re 1*

~ not connected.

/\\ftcn,*ords t-lJ 0 hl or-1:,,,ire ;,*:*s,-annccterl ta the 1mkn and the 1,hite conductor 1-:as the ground.

The drain wire 1,as not connected.

Test results li..sted 11elow.

Sample :Jo.

Capacitance Power Factor white cond 1

45.7 DlCO f,nads per ft.

. 014~,,

3 45.5 II II II II

. 014%

4 46.9 II II "

. 015°0

(

c; II II

~

c; II II 0

~

Bl :ick cond 1

45.8 II II II * "

.015%

d II II II

~

47 ()

II II II II 015%

6 49.5 "

II

• 016%

rt II II

~

L/\\B TECrliHCI/\\N SUPERVISOR OF LAG SERVICES

\\ _____ D_C_/\\S Q._1'\\_R ______ _

~-J'{c, sc* ('zc ~,( ----*- -** -_\\_--____

PAGE 8

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HAVEG INDUSTRIES. INC.

WIRE & CAGLE DIVISION P.O. GOX 7 e

REP-/UlR NO. _26_4;..._5 ___

DATE 1-4-79 WINOOSKI, VT 05~04 PRODUCT lh mc;n 7

on ?r SPEC CSA (22-2 TEST c; IC

J I1 d rm~er*- r

::icto:r:

I fliETHOO AMEND/Df1TE REO. PAR/\\.

OTHER REFERENCED oocu;.1nns TEST DATE.

TIME START TIME STOP DATE COMPLETED f:ach speciT'1en was cut to a length of 12 inches.

Total measurement of th~ cahle was obtained by bra i cling a mct.11lic ::;hlclcl over the llvpolon jacket on each samnle.

The drain wire and both conductors were tied together and attached to the unknown and the hraided shield PAR.L\\. !l:. 2. 8, 1

---

"-"'~g.LQ:.~,,,_.__ __________________________

Test results listed below:

Results:

Sample No, C.:i.pacitance Power Factor 1

178.46 12ico farads 12er ft

• 035%

3 202.59 II II II ti

.

• 043%

4 183,38 "

II rt II

• 038%

":,?

1 II II ti II c;

?,

7 258.52 ti II II II

• 036 90

~s TECHrlICIMl --1' SUPERVISOR[tc:AG SEr:VICES

--. _1,. ___

__cD_::.__CAS QAR.

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