ML20244A719

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Tech Spec BVS-584,Revision 2:Coaxial Cables Mfg by S&W
ML20244A719
Person / Time
Site: Beaver Valley
Issue date: 09/11/1973
From:
DUQUESNE LIGHT CO.
To:
Shared Package
ML19273B971 List:
References
NUDOCS 7906180647
Download: ML20244A719 (13)
v • d • e


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May 9, 1973 En No 1. Jane 19,1973 l1 J.O.No. 11700 P.ey No 2. Septe ber 11,1973 1 2 I

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C. O. No. 3 4 6 8 O.F.E. No. 8700

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Spec. No. BVS-564 P.O.No. BV-711 i

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Specification for f

COAXI AL CABLES l

Beaver valley Power Station - Unit No. 1 I

r' Duquesne Light company j

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Supplier : M7CFJM OC?.FORCION 12 f

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  • lm REVISIONS REV.O REV.1 REV.2, REV.3 Prepared By,

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Equipment Spe:lailst Rw!c,"

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Stone C Webster Engineering Corporation Boston, Ma ssa chusetts I

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Spec No. BVS-584 9

l P.O.No. BV-711 10 l

Specific Requirements 13 for 14 C o Ax.T._._t,L._C A BLES 15 i

1. scope 18 j

Ihis specification covers the furnishing of Coaxial 20 Cables simila r to MIL-RG-5BA/D

.tn d MIL-RG-59/D for use 21 inside and outEide the re t:cv.cr containment of a nuclear gower plant an d shall be ca pable of wi thstanding the 22 i

emergency environmental conditions stated in paragraph 5.0 23 of this specification.

1 The cables shall be installed in cable tray, or 25 i

conduit, by others, and shall Ipc

moisture, and radiation 26 resistant and flame retarden*

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2. APPLICABLE STANDARDS 29 MIL-C-17D Military Specification
Cables, Radio 31

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Irequency; coaxiai, dual coa xia l, twin 32

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conductor and twin leads.

33 l

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FE D, STD-228 Federal Test Method Standard - cable,s and 36 and wire insulated - nethod of te sti ng.

37 Methods 6031 and 6111.

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1. DEFINITIONS 41 l

.he client Duquesne Light company 43 Engineers Stone

& Webster Engineering Corpora-46 s-tion (as client's representative) 47 Supplier Raychem Corporation 50 Design Basis Accident 52 l

Dz B. A.

l Pu rcheser Client or client's representative 54 4

DESIGN REODI9EMENTS 57 4.1 Pavchem-10099 shnilar to MI L-RS-S a A/U shall be 60 i

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46 ohm 4.8 ohm, 1,900 v a-c coaxial cable with 61 l

No. 21 AWG 19 strands tinned coated annealed copper t

1 conductor (0. 035 in. O.D max) in a ccordance with 62

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i specification sheet No. Du99 ehich f orms part of j

this specification, j

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k-11700-ac 09/28/73 152 t_

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4. 2 Eavchem 10u81 similar to MIL-RG-59/U, shall be 65 s'~

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62 ohm e 6.2 ohm, 2,300 v a-c coaxial cable with Ho. 22 AWG 19 strands tinned coated annealed copper 66 conductor (0. 0 32 in. O. D. nom) in accordance with 67 specification sheet No. 10481 which forms part of l

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this specification.

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4. 3 Dielectric shall be solid and shall make intimate 69 mechanical contact with the inner conductor so that 70 j

no air films, air bubbles or air voids are present.

The inner conductor shall not be off-center more 72 2

than 10 percent of cable core Iadius.

73 The cable core shall have an Alkane / Imide insulation 75 over the conductor which prevents the c onduc tor j

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from short circuiting under high temperature and 76 pressure of D.B.A.

The main dielec tric shall be 77 cross linked, radiation resistance Polyolefin.

l 4 4 Outer Conductor shall be tinned copper braid 36 AWG 79 i

3 for Raychem 10499, and 34 AWG for Raychem 10481 80

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with 90 percent coverage.

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4. 5 Jacket shall be radiation resistant, cross linked 82

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noncorrosive highly flame retardent Polyolefin and 83 be capable of withstanding maximum environmental conditions stated in paragraph 5.0 of this specification.

5. ENVIRONMENTAL CONDITIObG 86 l

Ihe cables shall retain their full electrical' 88 l

capabilities under the following conditions:

89 e-(

51 Normal Ooeratine Conditions 92 3

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Temee ra ture Normal 70 F to 120 F 95 Minimum 60 F 96 Maximum 135 F 97 Under loss of normal a-c power the containment 101 temperature could rise to 135 T.

102 b.

Pressure 9.5 psia minimum.

105 The cable shall also be capable of operating 107 under normal atmospheric site pressure of 108 l

approximately 14.3 psia.

109

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Runidity about 50 percent.

113 i

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1X105 rads over the 40"ysar life 117 d.

Radiation of the station a rea within the 118 containment other than near the 119 reactor.

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5. 2 Post-DBA - First Hour 124 280 F (13 8 C) 126 Tempe rature 60 psia (45 psig) 127 Pressure 100 percent 129 Humidity 1x106 rads plus 1x105 rads 130 Radiation The equipment is assumed to be 132 spray continuously sprayed with a 132 solution of 1.5 percent boric 134 acid, with sodium hydroxide s' 135 added to result in a pH of ;

136 a

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10.5 measured at 25 C 137 i

5. 3 Fost-DBA - After First Hour and Uc To 4,000 Hours 140 l

i 140 F (60 C) 142,

Temperature 4

13.5 psia

(-1.2 psig) 143 H

Pressure 100 percent-144 Bumidity 1x108 rads (total accumulated.

146 Radiation

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dose) continuously, sprayed

!,147 with a solution of' 1.5 percent 148 boric acid, with sodium hydro-149 xide added te result in a pH d50 of 8.0 to 8.5 ' measured at 25 C' 1,51 Af ter First Hour" temperature and 155 The

" Post-DBA pressure vill be continuously and slowly geduced.

156 If this reduction is significant to equipment i157 operation, the Engineers should be contacted.

6. TESTS 160 61 Radia tion Resistance Tests shall be performed,on 162 t

section of the completed

cabler, and shall be 163 certified.

6 2 continuity Test

- A potential of 6 volts a-c 'or d,c 166 i

t maximum shall be applied, through a

voltme te r 4 to 167 the inner and outer conductor of the cable.

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voltage may be applied to the conductozs individually or in series and both conductors shall be continuous.

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q 63 Voltace Test

- A voltage withstanding test shall be 170

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performed on both types of coaxial cables in J

accordance with Federal Test Sta nda rd tio.

228 171 sethod 6111 at the following voltages:

k-11700-De 09/28/73 152

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IT IS HEREDY CERTIFIED Till.T ALL ITEMS REFERENCED HEREIN CC:1 PLY g

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AND APPLICADLE DRAWINGS, SPECIFICATIONS, CODES AND STA!CARCS.

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PART NUMBER LOT NUMBER FOOTAGE g

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9 The Ef fests of Radiation and Aging on a Coaxial Cable M

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This repor t covers insulation resis tance measure *ents m.nle at elevated i;

. j temperature and pressure on 30f+83 c oax i a l..ab le a f t er i t had been ex.

)p posed to various conditions of radiotloo and heat aging.

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This coaxial cable (see attached drawing) has a layer of a alkene-

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  • Imide polyerer over the conductor to prevent shorting of the cc,nduc tor I

Ok to the shield at conditions of high te< perature and pres:,ure en.

countered in a nuclear power station during accident c en.d i t i on s.

C These tests are to W! ate the accidW condi ticM and insultaion resistance measurements were made while the cabic was at te ;cratures j

In excess of 340 F and at pressures greater th n 60 ps;o. Since thesc l

cor di t ioris can occur at any 1it,e dur ing the !i f e of the poner s tat 101 I

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O the sarnples tested w(.re exposed to var ious radiat ion do*W. and aging I

c ondi ticuss prior to the insu lation res i s tance tes t s.

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5 specification 1260 (copy at tached).

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'[. 4 in the first test (table #1), only the dielectric laycr was measured l

l but, on subsequent tests, both t he ditt lec t ric layer and the J acket j.4 were rmeasured. Also, the test was run for at least 2f+ hour s on the t;

agid and irradiated specimens. A sr.a l l amoun t of beric acid was I.,i a Ped to the -ater in the pressure vessel. The PH of the resulting f c;;

solution was betacen 7 and 3.

a.pg The ins lat ;en resistance escaturenets =cre made with a teneral kadio

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Cc. IBM %.:. vtcr at 500 v. d-c.

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Y1 The insulation resistar,ce at pressure and temperature af ter radiation

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the extensive aging and radiation exposure.

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after all t he enviernent a l empesure.t.

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l'.O. box 2325 m

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&cr. ten, Mcssochusetts 02107 4

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5-r Attention: Mr. T. McDermott-Fox i

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Subject:

Yevr Purchese Order BV-711 A

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.., j Stone & Webster Specification BVS-SH Revision 2 h

111 Roychem Bid File 156 b

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Gentlemen:

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We certify that the cttached Test Reports EM 518A and EM 744A l

occurotely represent dato rece.ided in Roychem Ichoretory note-I

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q books maintoined on file. -

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p These tests. ore submitted to satisfy the requirements of your speet-Tf9t-2

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fication porographs 5.2, 5.3, 6.1 and 6.8.

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1 Sincere \\y, (JPW.o o,

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,.,. 4 Frank E t.o Fetru v% (

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t STATE OF CAUFORNIA.

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  • March 31, 1980 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Aten: Boyce H. Grier, Regional Director Region I 631 Park Avenue l

King of Prussia, Pennsylvania 19406

Reference:

Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 IE Bulletin 79-015 Dear Mr. Grier In accordance with the requirements of the referenewt bulletin and our letter of February 29, 1980, enclosed are the reportu required for Items 1, 2 and 3.

1 In order to aseure cow rehensive ceg ilstion of ths Master List, va have gives tha bre " ?: pcssibla 1starpratation to tha definici a of the cis:ses of equi;---t to he '--P '-f thn eis

'-M "??mi ell + f;

't LLat is located in potential Righ Peersy Line Break areas (i.e., aM14*ry hildies,

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cable vault and servica bu4 WM) that is prasantly sPai N 4 to bring the plant to a safe shutdosa condition. This has resulted La the compilation of about 370 items on the Mseter List. We plan to cle cly *---* a c ch itcm en

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the Master List and may elect to deleta certata itene on the Master List if we determine that the item is not needed to control the accident or to achieve safe abutdoen or is not used la as hergency operating Pencedwo. -

i Further, certain of the items on the Master List any not anat the required gestiftsatimes required of seek eq=4 - *. Se elaborete, when the 7

EELB analysis was perfer=ed fcr Beaver Yallay, the areas ment' "*8 wara

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l analysed as someos moea eazaost regard ter soupertssatalisaties or barriers.

raia ranultad in all asuisment ta smass armaa theoreatmany 61 An ew art.m l

  • ?* t r^y, *"?f~~~.ha % M c~.*a~a th; =~;i r "*';;;h; ;; ; iiff=;;t

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smose amorences, we plea to "T"*'"y posses sea er move of the fe13muing alternatives:

reenalyse the enriremmental conditima to which the item is exposed s.

to more closely appresinate the espected enrim*=1 conditime.

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__-_________x_-______.

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V' L-Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 l

IE Bulletin 79-01B Page 2 b.

reexamine the requirement for the item to be classified as 1E.

I qualification tests of the ites to meet the required criteria.

c.

d.

movement of the item out of the adverse acvironment.

replacement of the ites with another type meeting all qualifications.

I e.

i In view of the substantial effort involved in accomplishing all of the requirements of Bulletin 79-015, it is not possible to specify a schedule for completion of the second phase of the work required at this time. We will, howver, develop an estiested schedule for ce=pletien and prev"- *'-*

1 schedule to you prior to April 15, 1980.

j Very truly yours,

. to-E.

. Woolever Vice President, Engineering and Construction Attachments cc:

U.S. Nuciaar Ragulatory Commission Office of Inspection and Enforcement Division of Peactor Operations Inspection Washin6 ton, D.C.

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