ML100271829
| ML100271829 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 06/02/1981 |
| From: | Korner R, Liotino V Westinghouse, Div of CBS Corp |
| To: | |
| Shared Package | |
| ML093430851 | List: |
| References | |
| NUDOCS 8202090371, PEN-TR-81-38 | |
| Download: ML100271829 (16) | |
Text
Westinghouse Electric Corporation Electronic Components Divisions Westinghouse Circle Horseheads New York 14845 PEN-TR-81-38 June 2, 1981 LOCA TESTING OF A LOW VOLTAGE CONDUCTOR SEAL V. Liotino. Test Engineer R. L.
Korner, Project Engineer 820209037 1 '8202'04 PDR ADOCK 05000286 P
1.0 IDENTIFICATION OF EQUIPMENT The conductor seal W part number 55-170.is used in 600V rated canister type electric penetrations.
This sea! is the only non-metallic element exposed to the LOCA environment.
Penetrations identified as W Dwg. E4l1071 type (6) and H32, H37, H45, H50, H53, H57 in the Indian Point Plant as shown in W Dwg.
E40171 use this seal.
2.0 PURPOSE OF TEST To demonstrate that this conductor seal (W Dwg. #55-170) can maintain electrical and mechanical integrity during and after a LOCA event.
As this seal is the only non-metallic component of the type (6) electric penetration assembly, its qualification will serve to qualify the assembly as well.
3.0 TEST SET UP The test specimen was sealed at the top and then welded to a bulkhead duplicating the manner in which it is fastened to the penetration canister bulkhead. This bulkhead assembly was then attached to the steam chamber. The chamber is equipped to permit spraying with borated water during the LOCA event. The test was performed at the W IGTD location in Horseheads, N.Y.
- I -
4.0 TEST PROCEDURE AND ACCEPTANJCE CRITEFIA 4.1 Prior to start of the test, the following tests and criteria apply (per IEEE 317-76).
Leak Rate:
Less than I X 10.6 std. cc/sec. (He)
Dielectric Withstand: 2.2KV (RMS) for 5 minutes 108 Insulation Resistance: 1 X ohms at 500V DC minimum 4.2 During LOCA Test No electric breakdown at 660V (RMS) (allowing l0 voltage margin).
Insulation Resistance measured at 500V DC to be no less than 107 ohms.
A minimum of (4) Insulation Resistance readings are to be taken during the test duration.
Helium Leak Test every hour for the first (6) hours of test.
Leak rate to be less than I X 10-2 Std. cc/sec. (Nitrogen).
4.3 LOCA Envelope The test specimen will be subjected to 3400 F (170 0C), 103 PSIG saturated steam for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The first (6) hours will include a spray of 2000 ppm borated water and.40% sodium hydroxide (PH 12.62 and conductivity was 14,000 micro MHOS).
4.4 Criteria After Completion of Test Leak Rate:
Less than I X 10-2 std. cc/sec. (Nitrogen)
Dielectric Withstand:
2.2KV (RMS) for five minutes Insulation Resistance:
No required minimum 5.0 TEST RESULTS 5.1 Prior to Start of Test Leak Rate:
Less than 108 std. cc/sec. (He)
Dielectric Withstand:
2.2KV (RMS) for 5 minutes 10 Insulation Resistance:
3 X 10 ohms at 500V DC 5.2 During LOCA Test No electrical breakdown occurred during the entire test at 660V (RMS).
Record of test conditions and insulation resistance readings follow:
VOLTAGE 68ov 680V 68ov 680v 680v 68ov 68oV 68ov 68ov 68ov 680V AMBIENT TEMP.
220C 152C 1700 C 1720C 174 0C 172 0 C 172 0 C 170° C 1700C 171°C 1690C STEAM PRESSURE 68 105 109 110 110 110 110 110 110 110 PSIG PSIG PSIG PSIG PSIG PSIG PSIG PSIG PSIG PSIG Borated water turned off.
680V 171 0C 107 PSIG Test terminated-.
Leak Rate was less than I X 10- 6 std. cc/sec. (He) 2, 3, 4, 5, 6 and 7.
BORATED WATER SPRAY ON ON ON ON ON ON ON ON ON ON OFF MEASURED I.R.
@ 500V DC 1.5 X 108 ohms.
107 10 7
107 107 107 1 07
!07
.ohms ohms ohms ohms ohms ohms ohms 1.5 X 108 ohms measured at time of I hour, TIME 0
8 Min.
13 Min.
30 Min.
I Hour 2 Hours 3 Hours 4 Hours 5 Hours 6 Hours 7 Hours 24 Hours
L--O C, Cu RV E HELD For 24 HOL).,
ReqoE ieE Loc.tiz CLJVE:
FHou Ps
After completion of test "
Leak Rate:
Dielectric Withstand:
Insulation Resistance:
Less than I X 108 std, cc/sec. (He) 2200V (RMS) for five minutes 1.3 X 1010 ohms @ 500V D.C.
CONCLUSION The type 6 electric penetration which uses conductor seal W part number 55-170 will function electrically and mechanically when subjected to the postulated accident conditions for the Indian Point #3 Plant.
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I FIGURE 4 MEASURED TEMPERATURES DURING TEST 57-60 PSI 3_____
PSIT Ambien Temperature Measured with TC#.
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,tiThermometer Outboard jEnd of Penetration.
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9.0 IDENTIFICATION OF MATERIALS USED FOR TYPE 6 (Ref. E41071)
NO.
- 1.
- 2.
- 3.
- 4,
- 5.
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
13.
PART Container Conductor Seal Wire Marker Connector Adapter Tubing Tee Connector Adapter Joint Compound Gage 1/8 Pipe Nipple 1/8 Pipe Cap Tubing Val ve Potting Compound Silicone Rubber Primer P.D.S. #32240DM Paint P.D.S. #32260BV Silver Solder Silver Copper Eutectic Header Stainless Steel A240 Type 304 Cable 350 MCM - Kerite HTK -
FR Jacket items marked with an asterisk (*) have a pressure retaining function.
MATERIAL Stainless Steel A312 Type 304L Glazed Alumina 55-170 Kynar Heat Shrink over Brady marker Copper (removed at installation)
(removed at installation)
Stainless Steel A213 Type 304
- 14.
- 15.
- 16.
- 17.
- 18.
- 19.
- 20.
Only
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U 1 ISUPERSEDED DATE
.LIST OF -INSTRUMENTS 4.
EQUIPMENT Megohmeter Omega Pyrometer Pressure Gage Pressure Gage Helium Leak Detector Sensitivity Calibrator Power Supply SPECIMEN Medium Voltage -
Penet CUSTOMER 5.O.D TEST I Q A -
- S-17 0 Ceramic Bushing MANUFACTURER MODE L #
RANGE General Radio 1864 105
-10 12 Ohms Omega Type E O-500°F U.S. Gage 10818-1 0-200 PSI Marsh B-13 0-160 PSI Leybold Heraeus Ultratest M I10
- to 10 std cc/sec.
Veeco Instrument Type SC-4 2XIO (Air)
Inc.
std cc/sec, W
371 O-800V A.C.
S/N 3557 5283
-3979 5299 N/A 14592 5386 DATE 6-3-81 W
TESTED BY Paul Brill APPROVED BY CALIBRATION LAST.
DUE ACC'Y.
2-18-81 8-23-81
+2%
4-24-81 10-25-81
+1% F.S.
3-15-81 9-20-81
+1% F.S.
3-17-81 9-20-81
+2% F.S.
Daily N/A N/A 3%/F Temp.
N/A N/A
+Q?
,ef.+10%
-s td 1-15-81 7-19-81
+2% F.S.
11.0 SEISMIC DATA
In tests conducted November 6, 1973 on a lO" diameter X 9' long canister containing the same ceramic -,ls as those used in the Indian Point #3 types. l, 2 and 3 it was found that the electric penetration assembly was not resonant in a range I to 33 Hz.
This design will therefore adequately meet the requirements of the Indian Point (3) specification.
Test conducted July 26, 1972 established that a design similar to the Type (6) adequately met the requirements of the Indian Point (#3) specification. All parts were non resonant in the range I to 1OHz.
12.0 CABLE QUALIFICATION DATA