Text

Qualification Tests for Modular Penetration 5 Diameter (Prototype B1)
	ML17258A135
Person / Time
Site:	Ginna
Issue date:	11/12/1973
From:	Bereza A; WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	;
Shared Package
ML17258A133	List: ML17258A132; ML17258A134; ML17258A135;
References
	AB-11-12-73, NUDOCS 8109100189
	Download: ML17258A135 (42)
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Westinghouse,

'lectronic Components Electric Corporation Divisions Westinghouse Circle Harseheads Hew Yerk 14845

¹AB-11/12/73 QUALIFICATION TESTS FOR A NODULAR PENETRATION 5" DIA.

(Prototype Bl) by A1bert Bereza 8109100189 810904 P

I

house Electric Corporation industry & Defense

~tsrdh',ate!tais Ce:trek Tde Oivision Box284 Cmtra New York 1(902 t607! 739 7951

~

Report JAB-ll/12/73

~

QUALIfICATION TESTS fOR A MODULAR PENETRATION 5>> DIA (Prototype BI )

~

ABSTRACT

)

Tests were performed to determine the suitability of the design shown in drawing E2728 for use in "

the most stringent containment ambients.

The model under test successfully passed steam test, thermal cycle, pre-ageing, and radiation testing.

Containing a variety oF conductor sizes and cables, the successful completion of these tests demon-strates the suitabil'ity of the design.

Q.~

I Albert Bereza Sworn to before me this 12th day of November 1973

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~

~ I INDEX

~ f

.~

Initial Insulation Resistance and Voltage Test of Cables.

2.

Steam Test.

3.

Thermal Cycling.

5.

Pre-Age 40 Years at 70 C.

'adiation Test 2 x 10 RAD.

6.

"0" Ring Test, Steam and Radiation.

7.

Final Steam Test Drawing E-2728 Test Configuration 8.

Flammability Test

I.

Insulation Resistance All leads meggered showed resistance values of the order lx10 ohms.

ll Triax unit showed f9llowing values.

Center to 1st shield lxlO ohms.

13 1st shield to 2nd shield 9xlO ohms.

12 2nd shield to ground 7xlO

'ohms.

12, Center to 1st shield withstand

3000V, 1 min.,

OK.

Volta e Test All ¹16AWG leads were tested at 1200V.

Leads larger than

¹16AWG were tested at 2640V.

All leads tested satisfactori ly.

II.

Steam Test

-8 Leak test unit checked with standard leak of 3x10 std.

cc/sec.

showed no detectable leak on prototype module Bl.

Leak tight unit was subjected to steam under following conditions:

6 hrs. g 340 F

47 PSIG 6 hrs. g 320 F

45 PSIG 24 hrs. g'260 F

10 PSIG 9 hrs. g 230 F

m5 PSIG The first 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months unit in steam chest was sprayed with 2000 ppm boric acid buffered with NaOH for pH 9-10.

See page 3 figuring book No.

144767 complete test.

Unit was initially pressurized with After 45 hrs.

on steam table, monitoring after temperature on steam chest reached and chart run made of 15 PSIG dry N2 @ 20 C.

pressure read 12.5 PSIG 20 C.

Unit was leak tested and no leak was found.

The 2.5 PSIG loss in gauge pressure amounts to 5xlO std.cc/sec.

This loss was attributed to the pressure gauge connections which opened slightly.

After steam test, leads were voltage tested and insulation teste'd as previously and passed satisfactorily.

The triax unit insulation resistance was down several

decades, but vacuum pumping improved resistance values to nearly original values.

The 3000 V test between center lead and 1st shield withstood the required 1 minute hold test.

III.

Thermal C clin at

~<2 RGD Center Leak tight prototype module Bl was cycled for 5 complete cycles from -20 C to 135 C.

After 5 complete cycles the inboard side was leak tight to

-10 lxlO std. cc/sec.

The outboard

'side had a detectable leak of lx10 std. cc/sec.

which was located at the triax unit.

See J. Quirk figuring book No.

205631 page 36.

Pre-A e 40 Years at 70 C at ~ RED 0

Subject prototype module Bl has been run at '" RED for 504 hours0.00583 days 0.14 hours 8.333333e-4 weeks 1.91772e-4 months .

Another 20 hours2.314815e-4 days 0.00556 hours 3.306878e-5 weeks 7.61e-6 months is allowed for the 45 hours5.208333e-4 days 0.0125 hours 7.440476e-5 weeks 1.71225e-5 months unit was on steam chest due to the elevated temperature.

The unit thus has accumulated 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C.

The pre-age schedule followed is 40 years at 70 C.

The 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C is an estimate based on the known thermal life of a similar particular cured epoxy following Arrhenius curves.

After 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C, unit is leak tight to lxl0 std. cc/sec.

0

~

-10 on inboard side and a slight detectable leak of lx10 std.

cc/sec.

on the outboard side which is from the triax unit.

(Three orders of

-6 magni tude les" than the requi red 1x10 std. cc/sec. )

See J. Quirk figuring book t<o.

205631 page 37.

1 1

W2 &

4

Uni t was.leak tested,and no leak was found.

The 2.5 PS IG loss

~5 in gauge pressure amounts to 5xlO std.cc/sec.

This loss was attributed to the pressure gauge connections which opened slightly.

After steam test, leads were voltage tested and insulation teste'd as previously and passed satisfactorily.

The triax unit insulation resistance was down several

decades, but vacuum pumping improved resistance values to nearly original values.

The 3000 V test between center lead and 1st shield withstood the required 1 minute hold test.

III.

Thermal C clin at '-'ED Center Leak tight prototype module Bl was cycled for 5 complete cycles from -20 C to 135 C.

After 5 complete cycles the inboard side was leak tight to

-10 lxlO std. cc/sec.

The outboard side had a detectable leak of lxlO std. cc/sec.

which was located at the triax unit.

See J. Quirk figuring book No.

205631 page 36.

IV.

Pre-A e 40 Years at 70 C at

~~

RGD 0

Subject prototype module Bl has been run at

'-" RED for 504 hours0.00583 days 0.14 hours 8.333333e-4 weeks 1.91772e-4 months .

Another 20 hours2.314815e-4 days 0.00556 hours 3.306878e-5 weeks 7.61e-6 months is allowed for the 45 hours5.208333e-4 days 0.0125 hours 7.440476e-5 weeks 1.71225e-5 months unit was on steam chest due to the elevated temperature.

The unit thus has accumulated 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C.

The pre-age schedule followed is 40 years at 70 C.

The 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C is an estimate based on the known thermal life of a similar particular cured epoxy following Arrhenius curves.

After 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 150 C, unit is leak tight to lxl0 std. cc/sec.

0

-10 on inboard side and a slight detectable leak of lxlO std. cc/sec.

on the outboard side which is from the triax unit.

(Three orders of magni tude les" than tive required lxl0 std. cc/sec.)

-6 See J.

Qui rk fi gur ing book No.

205631 page 37.

~02 w

V.

Irradiation Test at Neutron Pr'oducts Inc. - Dickerson Md.

As of this date prototype module Bl has accumulated

2. 13xlO RAD.

Unit was leak checked at '" RGD Center and found leak tight to lxlO std cc/sec.

on inboard side and a detectable

-10 leak of lx10 std cc/sec.

on outboard side which is in the Triax uni t.

VI "0" Rin Irradiation A s'tainless steel test module,.incorporating 4 silicone "0" rings, in a stainless steel housing with a suitable monitoring port was irradiated to 2.396xlO RAD gamma at Cornel.l University.

See Fig. l.

Leak tests. were performed at 0, 3.9xlO R,

1.008xlO R, 7

8 1.902xlO R and 2.396xlO R on a helium leak detector checked wi th 8

8 a standard helium 'calibrated leak having a sensitivity of

-8 3xlO std cc/sec.

No detectable leak was found thru 1.902x10 R irradiation.

8 8

After 2.396x10 R leak detected was 5xlO std cc/sec.

"0",Rin Steam Test Four "0" rings placed in a test module and inserted into header of steam table with suitable monitoring port between "0" 0

0

rings, 2 on each side, was subjected to steam 171 C - 174 C and 103 PSIG - 106 PSIG for 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months .

Monitoring extension tube was immersed in a beaker of water to check for any leakage of steam through the "0" rings.

No leakage was evident during and at end of the 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months steam test.

See figuring book No.

144753, page - A. Bereza.

VI I.

Final Steam Test - (Followed thermal cycling aging and radiation)

The leak detector was checked with a standard leak of

-8 3xlO std.cc/sec.

A slight leak was found on prototype

-6 module Bl.

The inboard end leaked lxlO std. cc/sec.

but meets IEEE Standard F317.

Prototype Bl was subjected to steam under following conditrons:

6 hrs. g 340," '0 PSIG 6 hrs. g 320 F

45 PSIG 16 hrs. g 266 F

10 PSIG 8 hrs. g 240 F

10 PSIG The first 3 hrs. unit in steam chest was sprayed with 2000 ppm boric acid buffered with NaOH for pH 9-10.

See page 9 figuring book No.

144767 and chart run made of complete test.

<<4-

Ainghouse Electric Corporation industry 8 Defense Products Comtoxxttsand Materials Bectrtxic tube Oivision Box 284 Bmtra New York14902 t607) 739 7951 Elmlra, N. Y.

October 17, 1973 F lammabl l l ty Te" t of Mesttnghousc "Q" Rosin Formula

&&W&A&AWWWW&

A. Bcreza R. Korner Ql A slnclc satoplc of ca..t epoxy, identified as <'cstlnahouse Rcs In was suboti tted to th 1 s laboratory for test in'rder the ASTl< 0~3/ Standards.

The sample wa found to bc "nonbttrning by test".

~

~J,

~~ ~z ~L$l~

Kenneth L. Roitrcr, Tc:chttical Services Dept.

Sworn to before ns this 17th clay of October 1973

/ram

~ s h

j Notary Public rI 1..!;:,;;

I/

(('i 7z

SPECIFICATIOlIS 8, STANDARDS DEPT.

EL]LIRA, N. Y.

DA'1'E

('t)<<>><<fFlg $ fI s>>

~

SVBJECT TEST CONFIGURATION I

~

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Inghouse Electric Corporation Industry & Defense Cixnponents and Mafer}als Beorrona: roOe OhLsion Box 284 em}ra }'ewYork 14902 (607}739 7951 RLK"9-6"74 September 6,

1974 SEISMIC TEST PROTOTYPE MODULE PENETRATION 8"I (Test Performed 2/1/74)

~Set -U Prototype Module Penetration 8-1 which has been subjected to steam

test,

)hermal cycling, pre-age 40 years at 70 C, radiation tested 2.1xlO RAD and steam test after radiation was vibration tested.

Hodule with four silicone "0" rings was mounted in test fixture and bolted to vibration test equipment, model C50 made by H.

B. Electronics, New Haven, Conn.

Unit was pressurized with 15 PSIG dry nitrogen for monitoring purposes.

Figs.

1,2, 6

3 show set-up in X, Y and Z axes on Vibration Test Equipment.

Accelerations were taken on a Hewlett Packard X-Y Recorder, Hodel 136A.

Test Procedure The accelerometer was placed on the far vertical side of the module in order to record output in the "X".direction.

In this mode the module was shaken in a horizontal plane perpendicular to its axis.

See figure 1.

Starting at the limit of the vibrator (5 cycles) a sweep of'rom 5 to 50 cycles was made in about thre minutes.

Fig. 4 is a recording of the results.

Tne output is shown at the one "g" level.

The waviness of the line is caused by noise in the amplification system.

The input was also one "g" but was not plotted to scale.

The next test

'<as performed as above except the module was rotated 900 prior to vibration.

Fig.

2 shows this arrangement and fig.

5 is a

recording of the test results for the "Y" direction.

RLK"9"6-74 Sept.

6, 1974 The final test for the "Z" direction was performed with the module axis parallel to direction of displacement as shown in fig. 3.

Fig.

6 is a recording of these test results.

Sine'e no resonant frequency were found during the sweep it was unnecessary to run for a prolonged time at any fixed frequency.

Conclusions No resonances were observed in the X,

Y and Z axes and at I

g acceleration between 5 and 50 cycles, nor during mechanical handling which would normally excite any resonances between 1 and 5 cycles.

The prototype module which had a small leak rate (less than 10 std cc)

'after all previous tests, was monitored. during vibration test.

Unit was pressurized to 15 PSIG and during vibration test, no added loss of pressure through module or "0" rings was observed.

The absence of resonances and retention of pressure show that the module is not affected adversely by seismic vibration.

Engineer performing tests:

/m A. Bereza

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"1 lO 20 30 50 1OO 200 500 (000 ZOOO FREnilFNCY )N HERTZ (x - air.Ce TioH'I

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FREQLlENCY IN HERTZ" ( Y-T>I+rc.un'>3

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500,, 500... [000'-".-'-5000 FREQliENC)'N HERT7 ('

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ELMIHA, liY ETD Dr. David Green cc.

Pgh.,

PA, Ro oarch I.abs J. F. Meier D. A. Rogers, Jr.

Pitt.'sburgh, PA fran RESEARC11 LtBOlUtTORIES tN:

. 236-5119 August 27, 1974 8,;~r: Estimate of Penet:ration Life

~ This report details the information with regard to estimated penetration thermal endurance or thermal index (leak rate) generated to date.

The procedures used to provide this estimate were those set forth in IEEE standards

<<~9S and IE101 as follows.

Item

~Par e A.

TREE STANDARD 898 Conmen t Accelerated thermal endurance tests were scl'ected as a raeans of establishing a temperat:uro index for "g" rosin penetra-tions.

1.

Specimens vere act:ually penetration seals manufact.ured at thc Elmira works.

2.

Specimens vere subjected to high temperatures tn simu-late in-service thermal aging, 3.

After each high temporat:uro exposure specimens vere subjected to helium 'eak testing to determine the degree of deterioration.

4.

High t:cmporature cycles were continued t>>rtil specimens had a leak rate of 1 x 10 std cc/sec.

5.

The results, to date, are reported herein.

The test specimens were provided by ETD and were of a

'universal design man>>fact:ured at ETD.

Details are shown in dwg.'-2795.

Specismons t.ere produced in a pilot production facility at ETD and were subject:od to 5 cycles from -30'C to 100'C at Westinghouse RGD prior to tlrc start of this high tempera-ture aging program.

Details, i.e.,

dwgs, nanufacturing

specs, and photos, can be obtairrcd from ETD.

The failure times of the test specimens are close togetlror and, therefore,'

largo nuraber of test specirens are not required.

.D. Creen Page 2

August 27, 1974

'A.

IEEE STANDARD fl98 (Cont'.inued)

Item

~Pa e

Comment:

6 The test specimens were exposed to the following tempera-tures:

Number of S.ecimcns Test Tem erature 4

4 4

3 3

125 C + 2 C

150'C + 2 C

175 C + 2'C 187-1/2'C 8 2'C 200'C +

4 C

The test temperatures differ by 20'C except for. 187-3./2 C.

k)owcver, lack of compliance with the test procedure at:

this t.est t.emperature is not considered an impediment to the extropolation because the h'ours to failure of the specimen at 187-1/2'C fall on a

traight line down bett;cen thc d"ta points obtained at 175 C and 200'C.

These exposure temperatures will result in an aver,.ge thermal life of morc t.han 5,000 hours0 days 0 hours 0 weeks 0 months at the lo"cst test temperat:ure.

T))e average thermal life of the specimens at the highest te t temperature is 125 hours0.00145 days 0.0347 hours 2.066799e-4 weeks 4.75625e-5 months and,,therefore, the highest test temperature is considered to be within XEEE f98 limi.t:s.

Table I, Page 9, of IEEE 698 was use'd as a guide in selecting the exposure temperatures and times.

200'C

'87-1/2'C 175 C

150 C'25 C

Time/Cycle 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months continuous t:hen once avery 24 hrs (1 day) 72'ours continuous then once every 24 hr., (1 day) 166 hours0.00192 days 0.0461 hours 2.744709e-4 weeks 6.3163e-5 months continuous then once every 168 hours0.00194 days 0.0467 hours 2.777778e-4 weeks 6.3924e-5 months (7 days) 52S. hours cotttinuous then once every 504 hours0.00583 days 0.14 hours 8.333333e-4 weeks 1.91772e-4 months (21 days) 840 hours0.00972 days 0.233 hours 0.00139 weeks 3.1962e-4 months continuous then once every S40 hours (35 days)

According t:o thc guin)c, these times and temperatures are

'suitable for a material with a temperature index in t)!e range of 130'C t.o 154'C.

The epoxy resin used to manufac-ture tlute test:

pccinicn

)ias a temperature index of 135"C.

D. Green

Pagq, 3

August 27, 197~<

A. I).'EE STANDARD) i'/98 (Conti>>ued)

Itcrn

~Pa e

7 10 Connnen t The ovens u.".ed to provide. the temperatures required were of thc forced-air circulating type.

These ovens were thermally mapped to locate zones within which tbc required temperature was being maintained.

Tbc test specimens werc thon located in that zone.

A full oven description will be contained in the final report.

8 10 9

ll The test specimens were subject to 5 cycles from -30'C to 100 C at liestinghouse F&D prior to thc start of hign temperature aging.

Add ' ional condi ti.oning, if any, w s added by ETD at the time of manufacture.

-2 A leak rate of >

1 x 10 std cc/scc was selected as the failure criterion. All test specimens, at their rc:spective test temperatures, vere aging until that failure cri.terion was m'eet.

Specimens were leak te..tcd using a helium leak detector which is sc:nsitive to 3eak rate 1 x 10"10 std cc/scc.

A description of the testing dcvicc will be con-taineci in the final rcport.

10 11, The method used in analyzing tbe data was that of rc.gres ion analysis based on least squares which is outlined in IEEE Std f/101 and is dc cribcd under that hc:adiug below.

The extent to which thermal endurance curves are extra-polated is limited to 2S'C below the last data point obtained.

The extrapolation, in that range, is linear and is c.xpected to remain so over the entire range selected.

The data points fit the c:urve quite well and this fit is expected to bold throughout the duration of thc test.

However, i,t is premature to estimate standard deviation and/or conf iclencc envelopes at this time.

Such estimate.s will be contained in the final rcport.

B.

IREE S'J'ANDARD '.) Ol The following is a tabulation of the data available, to date, which was used in a computerized program to generate the attached esti-mated thermal life curves.

s

~ D. Green Pape 4

August 27, 1974

~Test Tem ~C 200.

187-I/2 175 150 125 I

-3

>,x10

2. 11 2.17 2.23 2.3G 2.51 Failure llrs 96, 108, 184'63,

390, 477

1051, 1173,

1173, 1173

>2,500

>2,500 t of Specimens Failed 3 '

4 N/A ll/A Recession/Least Souares Analysis s

E x values

=

E x2 values

=

x(y) =

y.

xx y2 b ~

a ~

I SDy <

r

~Tem C

200 187-1/2 175 10.0 where N

21.7600 47.3746 56.7575 25.9910 69.3637 S.0950

-15.01560

. 9482

.4254

. 8991 1

-3

x 10 T,

K

2. 11 2.17 2.23 is the number Lo~

'Y = llouls 1.9820

=

9G 2.0330

= 108 2.2G50

= 184 2.2120

= 163 2.5910

= 390 2.6790

= 477 3.0020

= 1051 3.0690

= 1173 3.0690

= 1173 of test spccimcns failed

~

The equation which best fit:s this set of data is y = -15.015G + 8.0950(x) where 1

'3 x~

o-,x 10 1

-3 and y.= the log of the expected hours at

-x 10 T',

1' Thc correlation coefficient r is.S991 and reprc:cntc a

2

~

good fit of the data point:s, to date, witl> the generated st.raigl>t l'inc.

Using the ge>>c.r..tcd equation y = f(x) the following e'timates are made. of the expc cted thermal life at select.cd tc:mperat.urc.s.

D. Green Page 5

August 27; 1974

~Tem, C

~Ex ected Thermal Life --Hrs

'50 125 120 100 70 13,000 (1.5 years)

~200,000 (23 years)

~3S3,000 (4i4 years)

(>44 years)

(>44i years)

It would appear from these estimates that (1) the only realistic exposure tcmpcraturc reriaining is 150 C. If it produces failures with an average life of about 13,000 liours tliis progran i'ssentially completed.

(2) If'e do obtain an average life of 13,000 hours0 days 0 hours 0 weeks 0 months at 150'C tlic thermal endurance of the pcnetrations at 70'C is adequate for the intended appli.cation.

It is obviou from the.,e estimates tliat the average life at 150 C need not be 13,000 hours0 days 0 hours 0 weeks 0 months , but could be less and still provide adequate thermal life at 70 C.

The external silicone "0" manner at 200', 175',

and 150 C with Life-hrs

~Tem

'C "0" Rie e

ring s('.als were tested in thc same thc following results.

Penetrati.on Specimen 200 175 150

>535

>1,75S

>2,500 125 failed 1,133 failed

>2;500 on test It is obvious from these results tliat the thermal life of thc external "0" ring seal is going to exceed the estimated thermal life of the penetration specimen tested.

Estimation bv P3otti.n, Plotting the Arrhenius equation, derived from the cxpcrir 'tal data above, yields the straight linc (A) sho:n in Fig. 1.

Thc penetration specimens, still functioning, are shown by arrow attaclicd to points at 150 C and 125 C.

IEEC Std.

898 allows for extrapolation of tlic Arrhcni,us equation to a point 25'C below tlic last data point.

At this tine, tliere-

fore, we can estimate the average penetration life at 150'C to be 13,247 hours0.00286 days 0.0686 hours 4.083995e-4 weeks 9.39835e-5 months or ~1.5 years.

Linen fai1urc data are available at 150'C, we can then estimate tlie average penetration life at 125'C.

If the current approximation of thc true Arrhcniu i eqiiai:ion liolds, life at tliat: tempera-ture is expected to be >200,000 liours or +23 years.

e e

D. Green

. Page 6

August 27, 1974 I

E uivalent 40 Year Life Fai lure of the 150 C penetration specimens at an average life'f less than 13,000 hours0 days 0 hours 0 weeks 0 months will cause a change in the slope of the Arrhenius equation.

The worst situation would occur if all of the 150 C

specimens were to fail at 3,000 hours0 days 0 hours 0 weeks 0 months .

If this were to happen, the lowest estimated penetration specimen life would be defined by a straight line drawn between 125 hours0.00145 days 0.0347 hours 2.066799e-4 weeks 4.75625e-5 months at 200 C and the postulated 150 C fallute 0

point of 3,000 hours0 days 0 hours 0 weeks 0 months at 150 C.

This postulated worst case situation is shown by straight line (8) in Fig. I.

A worst case estimate of the equivalent 40 year life curve at norma) operating conditions of 70 C can now be made using straight line (B).

This is accomplished by drawing a straight line parallel to (B) and passing through 350,000 hours0 days 0 hours 0 weeks 0 months (40 years) at a

temperature of 70 C, straight line (C).

Using line (C) worst case estimates of the equivalent 40 year life can now be made and are:

0 Tem erature C

EauivaIent Life - Hours 70 100 125 140 150 160

~360,000 - 41 years n 17,500

~ 2,000

~600

~300 r 150 Interposed subject to this point at 150 C.

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on this graph is the 524 hours0.00606 days 0.146 hours 8.664021e-4 weeks 1.99382e-4 months at 1)0 C that module B<<l was in order to simulate 40 years at 70 C.

It is evident that shows considerable margin over the minimum indicated 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months This data validates the pre-aging conditions uti'Iized.

J.

F. Quiri; Elastomers attachment Figuring Book No. 205631, pages 65-67, 7I.

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EXCEPTIONS TO TME SPECIFICATION

~:. I,tern 2:05.2 - 6 The penetration module proposed is of a size that only one can be accommodated in one nozzle.

Since a future I-E circuit is

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anticipated the proposal includes. this circuit at this time.

Item 2:05.3 - 7 Segregation of circuits has been achieved in one module by providing metal barriers between them.

S

SCHEDULE FOR SUBMI SSION OF DRAWINGS 5 OTHER INFORMATION "Certified Drawings Installation Instructions Material Purchase Orders Receipt of Materials Completion of Machining Completion of Penetration Documentation of Tests 1 week ARO C

weeks ARO 1 week ARO 4 weeks ARO 4 weeks ARO 8 weeks ARO 8 weeks ARO

"- Delivery can be advanced 4 weeks if buyer can'upply a

10" - 300//ASA blank flange.

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ML17258A135

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