ML20050D008

From kanterella
Jump to navigation Jump to search
Test Rept on Incident Testing of Triax Penetration.
ML20050D008
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 11/14/1969
From:
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML20050C841 List:
References
RTR-NUREG-0588, RTR-NUREG-588 IEB-79-01B, IEB-79-1B, NUDOCS 8204090474
Download: ML20050D008 (6)


Text

, ,

/ ,-

  • *// , i3. */ X i .

l Q D j ,,:,V,..r.ii / ~.

.) (:::...,~.a.. h i

'. w. v ' Westinghouse Electric Corporation

-)

s. #

Electronic Tule Division Box a84 , Elmin, New YorL Hya TEST REPORT ON INCIDENT TESTING

, OF TRIAX PENETRATIO!!

P,u rpos e Conduct steam Mcident and helium leak detector test on a representative

/ sample triax conductor, f

Product Sample constructed as per drawing E2209.

Conclusion li.e liian svi.duviv. nillesivvd a vnce in u liin !=e ;;eam incident test without loss of leak tightness. The amphenol cable, //21-529 did not survive as the center wire migrated to a point where it almost touched the.first shield. The first shield shorted to the second shield. Thus, f seal integrity was maintained but operability was not. f .

/

Procedure A triax conductor was welded to a plate and mounted to a steam pressure vessel as shown in Figure 1. Steam pressure was then applied approximating conditions specified in SrJ/1 and SK//2. Note that the maximum pressure specified by SI'J/l is 50% above the design basis event pressure and SK//2 specified a temperature 37*F above the DBE temperature.

Leak integrity was checked before and af ter.

t

[h P

0 1

a )

. *?

t- .

. v Test Data -

Steam Test l

Temp. of Feed Through Elapsed Time Steam Pressure Chamber Temp. it. 5 Dwq. E2209 1 1/2 min 90 PSIG 323*F 77'F 60 min 90 PSIG 323*F 87'F 67 min 60 PSIG 303*F 82*F 3 hrs 60 PSIG 303*F 82 F 26 hrs 20 PSIG 248'F 82*F Helium Leak Detector Test There was no detectable leak either before or af ter the test. Minimum detectableleakratewas10((_0 std cc/sec for the Veeco'MS90 leak detector used.

Insulation Resistance Test Before incident Af ter incident Center Conductor . z x 10'" ohms 350 K ohms to First Shield

  1. 1 Shiel d to #2 Shield I x 10 103 I
  1. 2 Shield to Ground I x 10 10 Th* ohms .

_ Discussion it was'not possible to achieve the 90 PSIG in ten seconds as required, but it is felt that having achieved it in one and one-half minutes was adcquate since the design is not sensitive to shock caused by the fast heating rate.

The seal is so far from the heat generation face that very little tempera-ture rise was experienced at this critical area. The integrity of the seal , l was thus assured.

S'ince the cable is polyethylene with a s' o f tening point of 180 - 255'F, it is no surprise that shorting took place between shields and between the center conductor and shields.

. L'.  %)

The physical nature of the cable changed from flexible to very stiff after exposure.

1 It is evident from this test that triax penetrations will not be operable t

af ter exposure to the condi tions speci fled (90 PS IG and 318'F) . Seal integrity, however, was maintained thus proving the design adequacy.

o sy u.

.. 3 LL'.-

I Test Performed by R. L. Korner Q), C , ');Q/,2.659' //-/ + -G?

. c w Witnessed By Date Quality Assurance n <~.

/ .' I i VJs O (f l\ l Approved By h C, ..

  • ,g _ J/ y"
  • '. ~rg. ' r%-]

~ J '

e qW.

~

c

{w p g c , %, =n .

e .,

V 4 %y .. .

. p. %c.p)/

3  ! , . ,

f .i h

' f$-

(

t. ,
i ,

fp 47

M vymam. v- s
byd' U T D lk.i

'l :3

~

,p.-

g-

\:

g f.: s

.c .

i yp g,

< ').

L ._m. ,_ m 2,_; % e'. . .a r J h t * '-- - __ ' 'h' '

FIGURE I

.. ;;.;: . Cil* :.:ifi t Y , ,

.,, a v :s

~ .....%._.........._._......................... s) .

!! f.'il ;' G!!!.'ll a h lii. !!i.'s!-:l C C G r:i' O T:,\ Y l Dit i

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

7. . s.,

o 8, o .

N F e ,.

[s

,s f\ .

'A s0 4

.es .

s.3 t,) s.'T .  :. s s ig

..._.._..._..._p__..- .

. _ _ . . . .. . . 9. _. _

( l s

s

. . t, q

%s & 3 -

N) -

N. . l s

hj q) .

._ _ - . l . __  ; . _ . .. . _ .

. .g N . . u

. . e u-

,.s -

%s

\ k,J-l 0

. QQ .

,\ g , _ ,, o, 9- -. - ___ .

\ Is _L d

. _ m,. ..._.~.~.-- -

.] c) .

N As13 N s, D

i N

' s- 1 4v \ '

? . \_ _ . .

h -

s.

. . .'s .. .

g i

N. b . -

y y

. _ _ _ . _ v;

,y l'

/

i t.y . vj .s V

1 I e0 .

AD li i 9 , k .

} \') . . . . . . _ . _ . . _

k y!

s I

(n9 pp -

. o g' .

s . .-

  • O. .

. N -

( -

)'

g\g s ,

Q . .- t> 3 s 8

. (' l < - -

}6

% O- -

.. t s)

\f l .,' % , .

. 1 .

. j

~~-..:~

.. ...... . . . . . . l . .. .' . . l. . . . .. . . . l - . .. l. . . . . . (. . . -. . .l . . . . . l . -. . .. . . 1... .'.'l.'. . . . . . .

.( O O C O O O -

' tb) 0) O) 9 1,-)) N. r.)

19 n's ,

c. , .; . ... .:..! ,.: . w , o. .. u.. w ..v.2 v i. e .:> .

.),

l

. . .. . 6::: . . . IA \ t i. -h% it, .

l f.;;::iCt; 5.%. .T a' V

,e_a.... .1.: . . .t .2. . . . . . . . . . . . . . . . . . . . . _ . . . _ , . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . ..

l

. t!IiS Yli!GiiOl!';ti ill. ,!cYi:l C Co tt ? O!:/.Yl'o;l 1 . . . . . . - . . . . - - . - - . . - . . . . - . . . - - . . . . . . - . . . . - _ . . - . ___...-~...,~..s 1

1 ~i

{

  • s's 2 -

ti[

c.s. ,1

'4 I '

4:-

\J g

. I .

\q D D

.._ .. - -. .. y. ,4

,N ,)

' u N .

o k -

Q Os .

. . s fy t, I \%

s

  • . . A

\f . .

ou

\%\ .

U O

s

. \ V)(J iy ,

oo

' g, g .-

()

i, 9 }, .

s~ -

}' t 3(

N N

s s ., ,

~

' i

% 41 %

b 4 i' N i.t,. - -

I>s 1,

- Q e( t tg N' s8 -

\

- . ' w{ -

I. -

% DA

' c) t(

(

D %q .

' ti s

. N .

}t ( , ks

. . )

I

(\

D o [0 ( \ }(x -

.)

N

.u v)

'(q .

Qko i ,. .

t, s .

f N

H .

  • - 9 Q

s ys

%s Go

'1, s o

- N

. N D .. . N.,%%

N.s .. '% .,%

..................-........_....l.......l.......).......L_.....l.._..l......%,.

. L- .._s. ,-

O o N O O r- ()

. i. o .9 C') h sq I t.')) r., iM [y) N s  !

1

.* . , . .yj A..! c' ;'.' %h:V..? / ./ rWrV.t iWi!.l N a :) '

w ..,,.,. .

m --

,w BRAND-REX COMPANY

,m g . ,

. -, n ... .

WILLIM ANTIC, CONN E CTIC UT 06226 . (203)423-7775 l

WIRE AND CABLE DIVISION 3o-72 l

I '

LONG TERM THERMAL AGING ARRHEllIUS PLOT 160 YEAR LIFE 1,000,000 CROSS-LINKED POLYETIIYLENE INSULATION T-162

-\

8 h 6

h '

4 \ \

40 YR. is 3

_.i \

2 - \

s- i

.;1Q0,009 , k 8 \\

\ \

h t

@ 4 $o \. 'g O AGING FAILURE POINTS -

2 o 3 4' '

SHORT TERM AGING POINT -

  • *~

\ \

FOR 40 YR LIFE E 113

  • C , 15,684 11R z

I- 10,000 $i 8 bg r ,-

6

  1. e i \
  • C. 4 320 11R 4 Y,hA _th 12:

3 4 \

o \

2 h b a\

e \

1,000 -

ik, \ 136*c, 1068 HR y

(3 i i

_ 1 \

6 \ \

\ \

4 ( \ 150*c, 394 IIR 3 -

\

2 - I

$f136*c, 168 11R 100 \ l 1

90 100 120 140 160 '180 200 250 300 TEMPERATURE, C SROD Ct1 DIVISION natit . ( Ant f - (LI CIRIC AL th5UL AllhG f t:08%G

  • NONOfuCE M ANur ACTURING COMP ANf UhlNSUL Alt o COPPt B & COPPE R ALLOT went 4000f t & CO: ELEClwi( AL llANNESSES f CN IhCU5telf . Pvt I m Allenat toMPANT lit (IdelC A(f EttCf kohiC CONNLCIONS AND ELECTRICAL Com51RuC100N WAILAIAL

.