ML20207B857

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Rev a to Test Rept on Electrical Separation Verification Testing for Bechtel Power Corp for Use in Georgia Power Co Vogtle Electric Generating Station
ML20207B857
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 06/18/1986
From: Hazeltine J, Hight G, Faith Johnson
WYLE LABORATORIES
To:
Shared Package
ML20207B835 List:
References
RTR-REGGD-01.075, RTR-REGGD-1.075 48141-02, 48141-02-RA, 48141-2, 48141-2-RA, NUDOCS 8607180272
Download: ML20207B857 (667)


Text

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-VOLUME I-T TEST REPORT ON

.- ELECTRICAL SEPARA'ITON l l

VERIFICATION TENTING P O R 'IH E l

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g BECHTEL POWER CORPORATION l FOR USEIN THE GEORGIA POWER COMPANTS I VOGTLE ELECTRIC GENERA'ITNG FTA'ITON Bechtel Specifteation No. X3AQ10 l

Purchase Order No. PAV-14580 A

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For

? Bechtel Power Corporation Western Power Division Norwalk, California Y

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4 9G10- 1X3 AQ10 1 003 Pega No, ti

, Test Report No. 48141-02

-VOLUMEI-TABLE OF CONTENTS Section M

TEST REPORT

SUMMARY

1.0 CUSTOMER 1

,. 2.0 TEST SPECIMEN 1 3.0 ABSTRACT 1 4.0

SUMMARY

2

5.0 REFERENCES

4 6.0 TEST SPECIMEN DESCRIPTION 5 7.0 TEST PROGRAM DESCRIPTION 6 7.1 Screening Tests 6 7.2 Configuration Number 1 Test 11 7.3 Configuration Number 2 Tests 13 7.4 Configuration Number 3 Test 21 7.5 Configuration Number 4 Tests 23 7.6 Configuration Number 5 Tests 28 7.7 Configuration Number 6 Tests 32 7.8 Ampacity Tests 36 e-.

<. 8.0 QUALITY ASSURANCE 38 i

9.0 TEST EQUIPMENT AND INSTRUMENTATION 38 Iuk WYLE LABORATORIES Huntsville Facility

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9510- 1X3 AQ10 1 004 Paga No. iii Test Report No. 48141-02

(

V)

TABLE OP CONTENTS (Continued)

Section M

r-

.. SECTION I - SCREENING TESTS (DETERMINATION OF IGNITION CAPABILITY OF CONTROL CABLES AND WORST CASE CABLE SIZE IN A CABLE TRAY) 1.0 REQUIREMENTS I-1 1.1 Acceptance Criteria I-1 2.0 PROCEDURES I-1 2.1 Test Specimen Identification I-1

. 2.2 Test Specimen Preparation I-1 3.0 RESULTS I-5 APPENDIX I Test Specimen Inspection Sheets I-9 APPENDIX II Test Setup Photographs I-15 4

APPENDIX III Instrumentation Equipment Sheets I-19

.. APPENDIX IV Screening Test Setup Figure I-23 APPENDIX V Individual Test Data I-25 r**

Screening Test #1 I-27 Screening Test #2 I-33 Screening Test #3 I-39 Screening Test #4 I-45 Screening Test #5 I-51 Screening Test #6 I-57 Screening Test #7 I-63 Screening Test #8 I-69 Screening Test #9 I-75

, , , Screening Test #10 I-81 WYLE LABORATORIES Huritsville Facihty

9510-1X3AQ10-15-1 00G Pags No. iv Test Report No. 48141-02 7

s.

TABLE OF CONTENTS (Continued)

Section Page_

t_

SECTION H - CONFIGURATION NO.1 TEST

.. (HORIZONTAL CABLE TRAY TO HORIZONTAL CABLE TRAY SEPARA'ITON TEST) 1.0 REQUIREMENTS H-1 1.1 Acceptance Criteria H-1 2.0 PROCEDURES H-2 9 2.1 Test Specimen Preparation H-2 2.2 Instrumentation Setup H-2 2.3 Baseline Functional Tests H-5

, 2.4 Overcurrent Test U-8 2.5 Post-Overcurrent Test Functional Test U-9 3.0 RESULTS H-10 APPENDIX I Configuration Numt,er 1 Test Data U-11 SECTION M - CONFIGURATION NO,2 TESTS HORIZONTAL CABLE. TRAY TO RIGID STEEL CONDUIT, PLEXIBLE CONDUIT, METAL CLAD CABLE, ALUMINUM SHEATH LIGHTING CABLE, OR ARMORED CABLE SEPARA'ITON TESTS) 1.0 REQUIREMENTS m-1 1.1 Acceptance Criteria m-1 2.0 PROCEDURES m-2

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2.1 Test Specimen Preparation m-2 2.2 Instrumentation Setup m-3 2.3 Baseline Functional Tests E-5 2.4 Overcurrent Test m-8

.. 2.5 Post-Overcurrent Test Functional Test m-10 3.0 RESULTS m-11  ;

i

, APPENDIX I Configuration Number 2 Test No.1 Data M-17 i APPENDIX H Configuration Number 2 Test No. 2 Data m-37 APPENDIX m Configuration Number 2 Test No. 3 Data M-57 APPENDIX m Configuration Number 2 Test No. 4 Data M-77 APPENDIX V Configuration Number 2 Test No. 5 Data m-97 WYLE LABORATORIES Huntsvme Facahty 1

9510-1X3AG10-15-1 006 Page No. y Test Report No. 48141-02 l- TABLE OF CONTENTS (Continued)

,, Section _Page SECTION IV - CONFIGURATION NO. 3 TEST (FREE AIR CABLE 'IT) FLEXIBLE CONDUIT SEPARATION TEST)

)

<, 1.0 REQUIREMENTS IV-1 1 1.1 Acceptance Criteria IV-1 2.0 PROCEDURES IV-2 2.1 Test Specimen Preparation IV-2 2.2 Instrumentation Setup IV-2 2.3 Baseline Functional Tests IV-3 2.4 Overcurrent Test IV-5 2.5 Post-Overcurrent Test Functional Test IV-6

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3.0 RESULTS IV-7 APPENDIX I Configuration Number 3 Test Data IV-9

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SECTION V - CONFIGURATION NO. 4 TESTS (FREF AIR POWER CABLE TO FREE AIR CABLES AND

. SILTEMP BARRIER SEPAR ATION TESTS) j, 1.0 REQUIREMENTS V-1 1.1 Acceptance Criteria V-1 2.0 PROCEDURES V-2 2.1 Test Specimen Preparation V-2 2.2 Instrumentation Setup V-4 2.3 Baseline Functional Tests V-6 2.4 Overcurrent Test V-9 2.5 Post-Overcurrent Test Functional Test V-10 3.0 RESULTS V-11 l i

l APPENDIX I Configuration Number 4 Test No.1 Data V-15 '

A APPENDIX II Configuration Number 4 Test No. IA Data

' V-41 APPENDIX III Configuration Number 4 Test No. 2 Data V-63 l

r. WYLE LABORATORIES Huntsville Facthly

9510-1X3AQ10-15-1 007 Paga No. vi Test Report No. 48141-02

- V O L U M E II -

i TABLE OF CONTENTS (Continued) l

_ s tion

_ Pap SECTION VI - CONFIGURATION NO. 5 TESTS

,. (CONDUIT TO CONDUTP SEPARA'IlON TES'IS)

. 1.0 REQUIREMEN13 VI-1

,, 1.1 Acceptance Criteria VI-1

- 2.0 PROCEDURES VI-2 l

,. 2.1 Test Specimen Preparation VI-2

, 2.2 Instrumentation Setup VI-2 2.3 Baseline Functional Tests VI-4 2.4 Overeurrent Test VI-5 2.5 Post-Overcurrent Test Functional Test VI-6 3.0 RESULTS

.. VI-7 g APPENDIX I Configuration Number 5, Test No.1 Data VI-11

/^ APPENDIX II Configuration Number 5, Test No. 2 Data VI-25

\ APPENDIX III Configuration Number 5, Test No. 3 Data VI-39 SECTION VH - CONFIGURATION NO. 6 TESTS

- (LOW ENERGY AND CONTROL TYPE CABLES TO CONTROL TYPE CABLES INSIDE A PANEL SEPARATION TESTS) 1.0 REQUIREMEN'I5

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VH-1 1.1 Acceptance Criteria VII-1 2.0 PROCEDURES WI-2 2.1 Test Specimen Preparation

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VII-2 2.2 Instrumentation Setup VH-3 2.3 Baseline Functional Tests VII-4 2.4 Overcurrent Test VH-7 2.5 Post-Overcurrent Test Functional Test VH-8 3.0 RESULTS VII-9 l APPENDIX I Configuration Number 6, Test No.1 Data VII-13 APPENDIX H Configuration Number 6, Test No. 2 Data VII-33 APPENDIX III Configuration Number 6, Test No. 3 Data VII-53 t,

WYLE LABORATORIES l Huntsville Facility 4

/ 538Q/O- /5-2_. 008 Page No. vil Test Report No. 48141-02, Revision A I

TABLE OF CONTENTS (Continued)

a. S'eetion g

r-SECT 70N M - AMPACITY TESTS 1.0 REQUIREMENTS E -1 1.1 Acceptance Criteria E -I u

2.0 PROCEDURES VIII-2 2.1 Test Specimen Preparation

.. VIII-2 2.2 Instrumentation Setup , E -3 2.3 Ampacity Test E -4 3.0 RESULTS E -6 APPENDIX I Instrumentation Equipment Sheets VIII-9 APPENDIX II Individual Test Data E -15 Ampacity Test #3 -

VIII-17 Ampacity Test #4 VIII-25 Ampacity Test #5 VIII-33 Ampacity Test #6 VIII-41 Ampacity Test #7 VIII-49

, Ampacity Test #8 VIII-57 SECTION IX - WYLE LABORATORIES TEST PROCEDURE NO. 48141-01, REVISION B A 1.0 SCOPE IX-2 1.1 Objectives IX-2 1.2 Appilcable Documents IX-3 1.3 Equipment Description IX-4 1.4 Test Sequence IX-5 p- 1.5 Comparison of Wyle Configuration Numbers to Bechtel l, Configuration Numbers IX-5

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9G10-1X3 Auto-15-1 009 P ga No. vill l Test Report No. 48141-02 t

TABLE OF CONTENTS (Continued) section m

2.0 TEST REQUIREMEN'IE IX-7 2.1 Acceptance Criteria IX-7

,, 3.0 TEST PROGRAM IX-8 a 3.1 Test Specimen Identification IX-8

- 3.2 Screening Tests IX-8

. 3.3 Configuration Number 1 Test IX-12 3.4 Configuration Number 2 Tests IX-20 3.5 Configuration Number 3 Test IX-30 3.6 Configuration Number 4 Tests IX-35 3.7 Configuration Number 5 Tests IX-44 3.8 Configuration Number 6 Tests IX-49 3.9 Ampacity Tests IX-57 3.10 Quality Assurance IX-61 3.11 Report IX-61 FIGURES IX-61 r.

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48141-02, Revision A

) REPORT NO.

48141 WYLE JOB NO.

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CUSTOMER P.O.NO. PAV-14580 o

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PAGE 1 OF M7 PAGE REPORT 3.

Mqv 19. 1986

- , DATE

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_ SPECIFICATION (S)

See References in Section 5.0.

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1.0 CUSTOMER Bechtel Power Corporation ADDRESS Western Power Division, Norwalk, California

, 2.0 TEST SPECIMEN Power, Control, and Imtrumentation Cables as described in Paragraph 6.0

)

I 3.0 ABSTRACT The test program described herein was conducted for the Bechtel Power Corporation for Georgia Power Company's Vogtle Electric Generating Plant to support compliance with j

Regulatory Guide 1.75, Revision 2, " Physical Independence of Electrical Systems", and with Section 5.1.1.2 of IEEE Standard 384-1974, "IEEE Trial-Use Criteria for Separation of Class 1E Equipment and Circuits", which allows the use of testing and analyses to justify separation of less than the spatial requirements of Sections 5.1.3 and 5.1.4 of IEEE

Standard 384-1974.

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STATE OF ALASAMA Alabama Professional Eng. "****'*'""* * * * * " * " " * * * *

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Gerald R. Carimnneau Reg. No.13475 PREPARED BY M -

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. REVISIONS aevision a REPORT NO. 48141-02 DATE:

June 18, 1986 i., Lamonaromas sce=rse saevers a systtus caoup AEV.NO. DATE PAGE OR PARAfsRAPH AFFECTED BY APP *L DESCRIPTION OF CHANGES A 6/18/86 1, vii, 3, 4, 7, I-67, II-20, ,@ A Revised to Include Additional III-27, III-47, III-68, IV-1, '4'19 0 Ccmments by Customer V-30, VI-7, VI-18, VI-32, gp *

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VII-42, VII-62, IX-1 & IX-29 "S

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9510-1X3A010-15-1 012 Page No. 2 Test Report No. 48141-02 4.0

SUMMARY

, TEST RA'I10NALE Selection of overcurrent conditions, test configurations, test initial conditions, and functional test were based on the following:

, a) Overcurrent Condition - All test currents were based on failure of a circuits primary overcurrent protection, and are that current level just below the pickup setting (+10% for power panel and motor control center circuits) of the circuits secondary overcurrent protection. Test currents were conservatively maintained at a constant value as the circuits impedance increased due to conductor temperature rise.

b) Configurations - Test configurations were conservatively developed based on actual field installations. Bechtel personnel developed test configurations after inspecting actual Vogtle Electric Generating Plant (VEGP) as-built conditions.

e) Test Initial Conditions - Actual cable operating conditions were established prior to the fault current test by energizing the fault esble and several adjacent cables.

d) Functional Tests - All functional tests were based on industry-accepted standards. Visual inspections and temperature monitoring were also recorded and performed on all test specimens.

e) Cables - All cables were from VEGP stock.

The results of the test program and the test procedure are detailed in the appropriate sections as listed below:

e Section I Screening Tests (Determination of ignition capability of control cables and worst case cable in a cable tray) e Section II Configuration Number 1 Test (Horizontal Cable Tray to

, Horizontal Cable Tray Separation Test) e Section III Configuration Number 2 Tests (Horizontal Cable Tray to Rigid

~

Steel Conduit, Flexible Conduit, Metal Clad Cable, Aluminum Sheath Lighting Cable, or Armored Cable Separation Tests) e Section IV Configuration Number 2 Test (Free Air Cable to Flexible Conduit St.paration Test) e Section V Configuration Number 4 Tests (Free Air Power Cable to Free Air

_ Cables and SILTEMP Barrier Separation Tests) s e Section VI Configuration Number 5 Tests (Conduit to Conduit Separation Tests)

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WYLE LABORATORIES HuntsviHe FacHity

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/Z3M M Page No. 3 '

Test Report No. 48141-02, Revision A l,

4.0

SUMMARY

(Continued)

. e Section VII: . Configuration Number 6 Tests (Low Energy and Control Type Cables to Control Type Cables Inside a Panel Separation Tests) e Section VIII: Ampacity Tests (Tests to determine applicable Ampacity Derating Factors when cables are wrapped with SILTEMP

.. 188 CH Barriers) e Section IX: Wyle Laboratories' Test Procedure 48141-01, Revision B A Each of the configuration tests was conducted in the following sequence:

Baseline Functional Tests Overcurrent Test Post-Overcurrent Test Functional Tests One anomaly occurred during this test program. This anomaly is discussed briefly below and in more detail in Section II of this report .

~

Notice of Anomaly b.

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No. Date Description 1 03/14/86 Documents the inability of the 7/C 16 AWG, 2/C 14 AWG, and Twisted Pair 16 AWG target cables to conduct power during the Overcurrent Test for Configuration Number 4, Test No.1. In addition, these cables failed the Post-Test Insulation Resistance and High Potential Tests. This failure was caused by the ignition of the faulted 500 MCM cable which subsequently destroyed these cables during the Overcurrent Test. This test was repeated successfully (designated Test 1A) with a larger separation distance (6 inches versus 1 inch) and another layer of SILTEMP 188 CH material on the fault cable. See Section V. I l

d

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//jg/O-/92- Paga No. 4 Test Report No. 48141-02, Revision A

5.0 REFERENCES

5.1 " Technical Specification for Cable and Raceway Physical Separation Test for the Vogtle Electric Generating Plant", Bechtel Construction, Incorporated, Specifi-cation No. X3AQ10.

5.2 Wyle Laboratories Technical Propcsal for Cable Separation Test Program for Bechtel Construction, Incorporated, No. 543/4601-1/GH.

- 5.3 Wyle Laboratories Test Frocedure 48141-01, Revision B, " Electrical Raceway A

' Separation Verification Testing for Bechtel Construction, Incorporated for use in Georgia Power Company's Vogtle Electric Generating Station Bechtel )

Specification No. X3Q10, Purchase Order No. PAV-14580".

5.4 IEEE Std. 384-1974, "IEEE Trial-Use Standard for Separation of Class IE

, Equipment and Circuits."

. 5.5 United State.s Nuclear Regulatory Commission Guide 1.75, Revision 2, " Physical Independence of Electric Systems."

i 5.6 Vogtle Electric Generating Plant FSAR, Sections 8.1,8.3, and 1.9.

, 5.7 Code of Federal Regulations, Section 10, Part 21.

N 5.8 Code of Federal Regulations, Section 10, Part 50, Appendix B.

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. l WYl2 LABORATORIES Hurtisvelle Facihty c.

_ Paga No. 5 9510-1X3AQ10-15-1 01kest Report No. 48141-02 6.0 TEST SPECIMEN DESCRIPTION All cables used in this test program were qualified to meet the requirements of IEEE

.. Standard 383-1974, "IEEE Standard for Type Test of Class 1E Electrical Cables, Field Splices, and Connections for Nuclear Power Generating Stations'. The test specimens consisted of the following cables installed into the various configurations as described in

~

Sections I through VIII of this report and were provided to Wyle Laboratories from Vogtle Electric Generating Plant stock.

VEGP

, Item g Manufacturer Size LD.No, 1 600 Volt - Power Okonite 3/C 12 AWG 858 2 600 Volt - Power Okonite 3/C 8 AWG 833 3 600 Volt - Power Okonite 3/C 4 AWG 83D

,. 4 600 Volt - Power Okonite 3/C 1 AWG 83F

_, 5 600 Volt - Power Okonite 3-1/C 2/0 AWG 81H 6 600 Volt - Power Okonite 3-1/C 350 MCM 81L 7 600 Volt - Power Okonite 3-1/C 500 MCM 81M 8 600 Volt - Control Okonite 2/C 4 AWG A2D

/ 9 600 Volt - Control Okonite 2/C 8 AWG A2B k 10 600 Volt - Control Okonite 2/C 10 AWG A29 11 600 Volt . Power Okonite . 3/C 500 MCM 93M Armored 12 600 Volt - Power Rockbestos 2/C 8 AWG W2B Metal Clad 13 600 Volt - Power Rockbestos 3/C 8 AWG OAH

. Aluminum Sherah Lighting 14 600 Volt - SIS Rockbestos 1/C 8 AWG AIB l 15 600 Volt Eaton 7/C 16 AWG C76

, Overall Shield 16 600 Volt -Instrument Eaton 2/C 16 AWG CL67 Shielded Twisted Pair (STP)

- 17 600 Volt - Control Okonite 2/C 14 AWG A27 18 600 Volt - Control Okonite 2/C 12 AWG A28 19 600 Volt - SIS Rockbestos 1/C 12 AWG A18 n

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WYLE LABORATOMES 7 Huntsville FSC4hty k

Paga No. 6

, 9510-1X3AQ10-15-1 016 l

t 7.0 TEST PROGRAM DESCRIP'ITON 7.1 Screening Tests , 7.1.1 . Purpose

' The purpose of these tests was to determine the cable which, if faulted, would have the most impact on adjacent cables. The first seven tests were conducted with power-type cables and the last three tests conducted with control-type cables.

7.1.2 Dsseription

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The Screening Tests consisted of ten tests to determine the heat delivered to the environment during a fault in a cable inside a cable tray filled to its siderails. The faulted cable was the top center cable in the tray. Three thermocouple arrays with thermocouples at 1 inch, 6 inches, and 8.5 inches above the fault cable were utilized to detect heat

. released.

The cables tested and the applied currents were as follows:

Short-Circuit Test No. Cable Size Warmup Currents

  • Test Current Current I-1 3/C 12 AWG 27A, 58.3 A 577A N/A

'> 2 3/C 8 AWG 52A, 98A 643A N/A 3 3/C 4 AWG 91 A, 162A 880A N/A 4 3/C 1 AWG 141A, 275A 880A N/A 5 3-1/C 2/0 AWG 204 A, 323A 2600A N/A 6 3-1/C 350 MCM 384A, 615A 2600A 7300A 1

7 3-1/C 500 MCM 477A, 740A 2600A 8200A l 8 2/C 4 AWG 10tA, 188A 566A N/A

. 9 2/C 8 AWG 60A, 101A 566A N/A 10 2/C 10 AWG 41A, 78A 560A N/A Rated Ctrrent and Current at 90 C +30C Jacket Temperature WYLE LABORATORIES Huntsville Facility

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. $/'l Paga No. 7 Test Report No. 48141-02, Revision A 1

7.0 TEST PROGRAM DESCRIF1 TON (Continued) 9 7.1 . Screening Tests (Continued) 7.1.3 Results  !

t. The results of the ten Screening Tests are briefly summarized in the following tables:

. TABLE I

r. TEST CURRENT, 'ITME 'IU IGNITION, TIME TO OPEN-CIRCUIT, AND INSULATION BURN TIMES

' Test ' lime To Time To Insulation Test No. Pault Cable Size Current Ignition Open-Circult Burn Time 1 3/C 12 AWG 577A None 44.47 see N/A 2 3/C 8 AWG 643A None 38.31 see N/A 3 3/C 4 AWG 880A 38 see 104.48 see 2.7 min A 4 3/C 1 AWG 880A 520 see 450.50 see 4.2 min 5 3-1/C 2/0 AWG 2600A 59 sec 73.30 sec 6.9 min 6 3-1/C 350 MCM 2600A a'" see 325.63 sec

  • 9.3 min

. 7 3-1/C 500 MCM 2600A 743 sec 838.54 sec *

  • 11.0 min 8 2/C 4 AWG 566A None 336.54 see N/A 9 2/C 8 AWG 566A 29 sec 58.73 see 1.8 min 10 2/C 10 AWG 560A None 34.46 see N/A Fault cable conductors shorted together at this point. Current was increased to r-7300 amperes ud cable open-circuited in 24.40 seconds.

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    • Fault cable conductors shorted together at this point. Current was increased to 8200 amperes and cable open-circuited in 33.63 seconds.

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, 9510- 1X3A010 1 01g Test Rcport No. 48141-02 7.0 TEST PROGRAM DESCRIPTION (Continued)

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7.1 ScreeningTests (Continued)

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f 7.1.3 Results (Continued)

TABLE H MAXIMUM TEMPERATURES Peak Fault Peak At Peak At Test No. Pault Cable Size Cable 1" Above 6" Above 1 3/C 12 AWG 448 F 4840 F

  • 910F 2 3/C 8 AWG 352 F 104 F 420 F * *

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3 3/C 4 AWG 491 F 142 F 272 F

-' 4 3/C 1 AWG 866 F 238 F 120 F

. 5 3-1/C 2/0 AWG 1331 F 1004 F 392 F 6 3-1/C 350 MCM 0 1338 F 1468 F 1202 F 7 3-1/C 500 MCM 1808 F 0 1641 F 1356 F 8 2/C 4 AWG 698 F 627 F 197 F 9 2/C 8 AWG 713 F 812 F 333 F 10 2/C 10 AWG 538 F 0 193 F 59 F Fault cable jacket swelled and burst during this test. A piece of hot insulation contacted a thermocouple at 1-inch above the cable. ,The highest temperature at 1-inch, when this array location is Ignred, was 120.2 F.

L The fault cable jacket burst and the smoke exited the cable with high pressure and at an angle such that it missed the 1-inch array but caught the array at 6-inches and 8-1/2 inches. Thus, the 6-inch temperatures are higher than the 1-inch temperatures for these tests.

r- 7.1.4 Conclusions 1

The above results generated the following conclusions:

1.

a The 3-1/C 500 MCM cable was selected as the worst case cable since it:

1) conducted the test current for the longest period of time prior to failing,  ;

" 2) generated the highest Jacket temperature; 3) delivered the most heat to the l thermocouple array; 4) burned for the longest period of time after Igniting; and l

5) was visually the most severe fire. This cable was selected for use as the fault l

'$ cable in subsequent configurations where it could be located at the Vogtle

{s Electric Genuating Plant.

WYLE LABORATORIES HuntsyslIS ESCality

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Paga No. 9

. 9510-1X3AG10-15-1 019 Test Report No. 48141-02 e

7.0 TEST PROGRAM DESCRIP'110N (Continued) 7J Screening Tests (Continued) 7.1.4 Conclusions (Continued) I l

The 3-1/C fault cable construction (each conductor inside its own jacket) was I

" chosen over the multiconductor cable construction (3 conductors inside the same jacket) because: 1) past proprietary testing has shown the 3-1/C or Triplex construction to be more likely to ignite than the 3/C construction given the same fault conditions. Thus, the conservative approach would be to use the fault cable a with the higher ignition probability; and, 2) only 3 of the 8 multiconductor-type cables tested in this program ignited (Tests 3, 4, and 9). In each case the fire was not violent, flames did not track along the cable's jacket, flame height

, decreased to less than 6 inches inside of 60 seconds from ignition and the fire self-extinguished with additional insulation as fuel readily available. During Tests 5, 6, and 7, with cables of the 3-1/C construction, the fires were visually

" more violent, engulfed the entire cable length and decreased in height only when the entire fault cable's insulation system had been consumed. Consequently, it 7 was decided that use of the 3-1/C cable construction would conservatively model any installation with multiconductor cable.

The non-armored cable was selected over the armored cable because it was judged that the armor would effectively preclude oxygen from being available to C support combustion. Therefore, ignition of an armored cable was judged to be a low probability event. This conclusion was proven correct during Configuration No. 2, Test 5 (see Paragraph 7.3.3.5), when a 3/C 500 MCM armored cable (AC) fault cable did not ignite during worst case electrical fault conditions.

2. The visual height of the flames and intensity of the fires during Tests No. 6 and 7 (350 MCM and 500 MCM), indicated that restrictions on cable sizes in raceways

, L would be necessary for several of the proposed configuration tests. Thus, the 3-1/C 2/0 AWG was selected as the worst case cable for several tests, as noted in the following table, where a larger fault cable size would not be acceptable.

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Paga Nc. 10

' 9510-1X3A010-15~1 0 0 Test Report No. 48141-02 l l

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i 7.0 TEST PROGRAM DESCRIP'ITON (Continued) 7.1 Screening Tests (Continued) 7.1.4 '

Conclusions (Continued)

r. 3.

The selection of the 1/C 8 AWG SIS and 3/C 500 MCM (AC) as the worst case cables for the Configuration No. 6 Tests or Configuration No. 2, Test 5, respectively, was made based on past proprietary testing experience and

'. ' expected plar.t construction. These previous tests had shown that ignition was an unlikely event on SIS and armored cable. Therefore, the conservative approach c would be to use the largest possible size of these cable types, since it would be

'~ expected to conduct the fault the longest, consequently releasing the maximum amount of heat to the environment.

4.

The 2/C 8 AWG metal clad cable (MCC) and the 3/C 8 AWG Aluminum Sheath Lighting Cable (ALS) were selected as the fault cable for the Configuration c[' -

No. 2, Tests 3 and 4, respectively, since these are the largest cables of that construction utilized.

The following table summarizes which fault cable was used for which configuration test:

Configwation Number / Configuration Fault Cable T4 Test No. Type Size and Type (d' 1/1 Tray to Tray 3-1/C 2/0 AWG 2/1 Rigid Conduit to Tray 3-1/C 2/0 AWG 2/2 Flexible Conduit to Tray 3-1/C 2/0 AWG 2/3 ALS to Tray 3/C 8 AWG ALS 2/4 MCC to Tray 2/C 8 AWG MCC 2/5 AC to Tray 3/C 500 MCM AC

, 3/1 Free Air to Conduit 3-1/C 2/0 AWG

,, 4/1 Free Air to Free Air 3-1/C 500 MCM 4/1A Free Air to Free Air 3-1/C 500 MCM 4/2 Free A,r to Free Air 3-1/C 500 MCM S/1 Conduit to Conduit 3/C 12 AWG 5/2 Conduit to Conduit 3-1/C 500 MCM

~

5/3 Conduit to Conduit 3-1/C 2/0 AWG 6/1 Internal Panel 1/C 8 AWG SIS 6/2 Internal Panel 1/C 8 AWG SIS 6/3 Internal Panel 1/C 8 AWG SIS P,_.

_ WYLE LABORATORIES HuntsysHe Facility

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Paga No. 11 9G10- 1 X 36010 1 0U Test Report No. 48141-02 7.0 TES'r PROGRAM DESCRIP'ITON (Continued) 7.2 Configuration Number 1 Test

Configuration Number 1 consisted of a test between two horizontalladder rung cable trays separated by 12 inches as measured from the top of the fault cable, in the lower tray, to the 7 bottom of the target cables,in the upper tray.

e 7.2.1 Purpose a The purpose of this test was to demonstrate the adequacy of design where two horizontal cable trays are physically separated by 12 inches when an electrical fault occurs in the lower tray.

u-

r. 7.2.2 Description The cables tested and their electrical powering were as follows:

Cable Size Function Location Powering 3-1/C 2/0 AWG Fault Cable Lower Tray 204A, 300A, 2600A, i

And 3110 A

  • 3/C 12 AWG Target Cable Upper Tray 17A at 480 VAC 2/C 14 AWG Target Cable Upper Tray 13A at 120 VAC 7/C 16 AWG Target Cable Upper Tray 1A at 50 VAC STP 16 AWG Target Cable Upper Tray 1A at 50 VAC

' Initial Current, Current et 90 C Jacket Temperature, Test Current, and Short-Circuit Current r

%e r*

WYLE LABORATORIES Muntsvtile Facility

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Paga No. 12 9510-1X3A010-15-1 022 Test Report No. 48141-02 7.0 TE5"P PROGRAM DESCRIP'ITON (Continued) l 7.2 Configuration Number 1 test (Continued) f 7.2.3 Results L

- The results of this test are briefly described in the following table:

Cable Size Function Location Maximum Temperatta e 3-1/C 2/0 AWG Fault Cable Lower Tray 1262 F 3/C 12 AWG,2/C 14 AWG, Target Cables Upper Tray 448 F 7/C 16 AWG & STP 16 AWG i l

N/A N/A Upper Tray 7400F Rungs Time to Open Circuit:

Fault cable did not open-circuit at 2600-ampere test current. The conductors shorted after 73.17 seconds.

At this point, the current was increased to the maximum Multi-Amp Test Set output of 3110 amperes.

The cable opened in 1.27 seconds at this level.

Time to Ignition: 51 seconds Insulation Burn Time: 10.5 minutes Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests.

7.2.4 Conclusions The above results generated the following conclusion:

1. The acceptability of design / construction was demonstrated where 12-inch

' vertleal separation exists between horizontal cable trays when the worst case electrical fault occurs in the lower cable tray. This conclusion is valid as long as the faulted cable is a 3-1/C 2/0 AWG cable or a smaller sized cable.

L.

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, \

. l WYLE LABORATORIES Huntsume Facihty j

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  • IO 9510-1X3AQ10-15-1 023 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP'ITON (Continued) 7.3 Configuration Number 2 Tests i~

1

g. Configuiation Number 2 consisted of five tests between conduit or coated cables and cables inside a ladder rung tray. The faulted cable was below the cables or tray as described r below:

1' Fault Cable Target Cable

, Test No. Configuration Vetical Separation 1 3-1/C 2/0 AWG in 3 In 1/2"

  • Rigid Conduit 2 3-1/C 2/0 AWG in 3 In 1" "

Flexible Conduit 3 3/C 8 AWG ALS 1" "

4 2/C 8 AWG MCC 3/4"

  • O Fault Cable Coating or Conduit to Cable Tray Rungs

' Fault Cable Coating or Conduit to Cables Dropping Out of Tray 7.3.1 Purpose

,. The purposes of these tests were to:

1.

Demonstrate the adequacy of design where a horizontal cable tray is physically

' separated by 1/2 inch vertically from a rigid steel conduit when an electrical fault occurs inside the conduit (Test 1).

2. Demonstrate the adequacy of design where free air cables, dropping out of a horizontal cable tray, are physicslly separated by 1 inch vertically from a flexible conduit or ALS cable when an electrical fault occurs inside the flexible conduit or to the ALS cable (Tests 2 and 3).

[ i-3.

Demonstrate the adequacy of design where a horizontal cable tray is physically separated by 3/4 inch vertically from a metal clad or armored cable when an electrical fault occurs in the metal clad or armored cable (Tests 4 and 5).

I i

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9510-1X3AG10-15-1 029  !

Test Report No. 48141-02

,e 7.0 TEST PROGRAM DESCRIPTION (Continued) 7.3 Configuration Number 2 Tests (Continued) r, g, 7.3.2 -

Description

- The cables tested and their electrical powering were as follows.

7.3.2.1 Test No.1 Cable Size Function Location Powering

~

3-1/C 2/0 AWG Fault Cable Inside 3 In 204A, 220 A, 2600A

  • Rigid Conduit And 3250A 3/C 12 AWG Target Cable Inside Tray 17A at 480 VAC 2/C 14 AWG Target Cable Inside Tray ~ 13A at 120 VAC

., 7/C 16 AWG Target Cable Inside Tray 1A at 50 VAC STP 16 AWG Target Cable Inside Tray 1A at 50 VAC

, Initial Current, Current at 90 C Jacket Temperature, Test Current, and Short-Circuit Current 7.3.2.2 Test No. 2

. Cable Size Ftmetion Location Powering 3-1/C 2/0 AWG Fault Cable Inside 3 In 204A, 225 A, 2600 A *

, Flexible Conduit 3/C 12 AWG Target Cable 1In. Above Fault 17A at 480 VAC Conduit After Dropping Out of Tray 2/C 14 AWG Target Cable 1 In. Above Fault 13A at 120 VAC Conduit After Dropping Out of Tray ,

r i 7/C 16 AWG Target Cable 1In. Above Fault 1A at 50 VAC Conduit After Dropping Out of Tray STP 16 AWG Target Cable lin. Above Fault 1A at 50 VAC

' Conduit After Dropping Out of Tray

, Initial Current, Current at 90 C Jacket Temperature, i and Test Current m

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PIge No. 15 9510-1X3AQ10-15-1 025 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP110N (Continued) r.

7.3 Configuration Number 2 Tests (Continued) m 7.3.2.3 ~ Test No. 3 p Cable Size Function Location Powering 2

3/C 8 AWG ALS Fault Cable 1 In. Below 27 A, 75A, 310A

,. Target Cables And 2000A*

3/C 12 AWG Target Cable 1 In. Above 17A at 480 VAC Fault Cable

, 2/C 14 AWG Target Cable 1 In. Above 13A at 120 VAC Fault Cable 7/C 16 AWG Target Cable 1 In. Above 1A at 50 VAC Fault Cable STP 16 AWG Target Cable 1 In. Above 1A at 50 VAC Fault Cable

  • 0 Initial Current, Current at 90 C Jacket Temperature, Test Current, and Short-Circuit Current 7.3.2.4 Test No. 4 Cable Size Fimetien Location Powering r.

2/C 8 AWG MCC Fault Cable 3/4 In. 50A,100A, 566A

  • Below Tray 3/C 12 AWG Target Cable Inside Tray 17A at 480 VAC 2/C 14 AWG Target Cable Inside Tray 13A at 120 VAC 7/C 16 AWG Target Cable Inside Tray 1 A at 50 VAC g STP 16 AWG Target Cable Inside Tray 1A at 50 VAC Initial Current, Current at 90 C Jacket Temperature, and Test Current N

WYLE LASORATORIES Hur itsville Facility

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8K . 16 i 9G10 - 1X3 Aa 10 1 026 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP'ITON (Continued) 7.3 Configwation Number 2 Tests (Continued) 7.3.2.5 - Test No. 5 r Cable Size Function Location Powering 3/C 500 MCM AC Fault Cable 3/4 In. 388A, 685A, 2600A,

., Below Tray 4830A*

3/C 12 AWG Target Cable Inside Tray 17A at 480 VAC 2/C 14 AWG Target Cable Inside Tray 13A at 120 VAC 7/C 16 AWG Target Cable Inside Tray 1A at 50 VAC STP 16 AWG Target Cable Inside Tray 1A at 50 VAC

  • 0 Initial Current, Current at 90 C Jacket Temperature, Test Current, and short circuit current I'

7.3.3 Results I

The results of these tests are briefly described in the following tables.

7.3.3.1 Test No.1 Cable Size Fwietion Location Maximum Temperature 3-1/C 2/0 A%G Fault Cable Inside 3 In. 793 F Rigid Conduit

~

N/A N/A Outside 3 In. 340 F Rigid Conduit 3/C 12 AWG,2/C 14 AWG, Target Cables Inside Tray 0 137 F

. 7/C 16 AWG & STP 16 AWG

,, N/A N/A Tray Rungs 194 F Time to Open Circult: 'The fault cable did not open at the 2600-ampere test

" current level. The conductors shorted together after 98 seconds. At this point, the current was increased to the maximum Multi-Amp Test Set output (3250 amperes). The cable opened in 26.36 seconds at this level Time to Ignition: None Insulation Burn Time: N/A

] Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests WYLE LABORATO2IES Huntsville FSC,lity

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Paga No. 17 9510 - 1 X 3 AG 10 1 027 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP'ITOF (Continued) 7.3 Configuration Number 2 Tests (Continued) r.

7.3.3.2 - Test No. 2

, Cane Size Feetion Location Maximum Temperature a

3-1/C 2/0 AWG Fault Cable 0 Inside 3 In. 1731 F

. Flexible Conduit

. N/A N/A Outside 3 In. 322 F Flexible Conduit 3/C 12 AWG,2/C 14 AWG, Target Cables 1 In. Above 112 F 7/C 16 AWG & STP 16 AWG Fault Conduit After Dropping Out of Tray N/A 0 N/A Cable Tray Rungs 82 F

, (6 In. Above Fault Cable) e ion 9 seco r

Insulation Burn Time: 6 minutes Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pased Post-Overcurrent Test Functional Tests 1

j i

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m a WYLE LABORATORIES HuntsvlHe Facmty a

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Paga No. 18 9510- 1X3na10 1 028 j Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP'110N (Continued) 7.3 Configuration Number 2 Tests (Continued) 7.3.3.3 - Test No. 3

- Cable Size Function Location Maximum Temperature 3C 8 AWG ALS Fault Cable 1 In. Below 786 F

,., Target Cables 3/C 12 AWG,2/C 14 AWG, Target Cables 0 1 In Above 102 F 7/C 16 AWG & STP 16 AWG Fault Cable

_, N/A N/A Cable Tray Rungs 79 F (6 In. Above Fault Cable)

Time to Open Circuit: 'Ihe fault cable did not open-circuit at the 310-ampere fault current. The conductors shorted together after 135.81 seconds. At this point, the current was increased to the maximum Multi-Amp Test Set output (2000 amperes). The fault cable opened in 1.83 seconds at this level.

Time to Ignition: None Insulation Burn Time: N/A Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pased Post-Overcurrent Test Functional Tests l

A I

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Page No. 19 9510- 1X3na10 1 OW Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP'110N (Continued) 7.3 Configuration Number 2 Tests (Continued) 7.3.3.4 , Test No. 4 Cane Size Feetion Location Maximum Temperature 2C 8 AWG MCC Fault Cable 3/4 In. Below 1424 F

, Jacket Tray

m. 2C 8 AWG MCC Fault Cable 3/4 In. Below 313 F Coating Tray

, 3/C 12 AWG,2/C 14 AWG, Target Cables Inside Tray 1200F 7/C 16 AWG & STP 16 AWG N/A N/A Cable Tray Rungs 143 F

. Time to Open Circuit: 42.05 seconds at 566A Time to Ignition: None

( Insulation Burn Time: N/A Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests r

r.

4 9',

WYLE LABORATORIES Huntsv He Facility l.s

9510-1X3AQ10-15-1 030 Test Report No. 48141-02

/

7.0 TEST PROGRAM DESCRIPTION (Continued) 7.3 Configuratiott Number 2 Tests (Continued)

. 7.3.3.5 - Test No. 5 Cable Size Function Location Maximum Temperatwe !

3/C 500 MCM AC Fault Cable 3/4 In. Below 24750F Jacket Tray a 3/C 500 MCM AC Fault Cable 3/4 In. Below 835 F i Coating Tray 3/C 12 AWG,2/C 14 AWG, Target Cables Inside Tray 0 275 F 7/C 16 AWG & STP 16 AWG

. N/A N/A Cable Tray Rungs 312 F Time 'o Open Circuit: The fault cable did not open-circuit at the 2600-ampere fault current. The conductors shorted together after 1316.42 seconds. At this point, the current was increased to the maximum Multi-Amp Test Set output (4830 amperes). The cable opened in 28.17 seconds at

[ this level.

/] Time to ignition: None Insulation Burn Time: N/A Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pased Post-Overcurrent Test Functional Tests 7.3.4 Conclusions l

The above results generated the following conclusions:

1.

The acceptability of design / construction was demonstrated where a horizontal

" ladder rung cable tray is physically separated by 1/2 in. vertically from a rigid steel conduit, when an electrical fault occurs to a 2/0 AWG or smaller cable in

, the conduit.

r. i The test results from Test No. 5 (faulted 3/C 500 MCM AC cable) can be utilized to justify a vertical separation distance of 3/4 inch from a rigid conduit containing a 500 MCM or smaller cable and a ladder rung cable tray, with the conduit mounted under the tray. For this test, using 3/C 500 MgM fault cable, the radiated heat to the target cable jackets did not exceed 275 F even though the Testfault No.1cable 2475 F jagket vers temperatup) 793 F. were much higher than those recorded du higher (835 In addition, the coating temperature was versus 340 ) and the duration of the fault was longer (1344.54 4

seconds versus :1.36 seconds) during Test No. 5. The armored cable is

/"g

$ considered to be a more severe case than a 3-1/C 500 MCM cable inside rigid conduit because 1) the outer coating thickness is much smaller on armored cable, WYLE LABORATORIES f Huntsville Facshly L,

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t 9510-1X3AQ10-15-1 031 Paga Nc. 21 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIPTION (Continued)

, 7.3.4 Conclusions (Continued) and 2) the additional insulating material on the 3/C 500 MCM AC cable

~ causes the fault to occur for a longer period prior to open-circuiting, due to the heat transfer mechanism available as the cable off-gasses.

2. The acceptabuity of design / construction was demonstrated where free air cables, dropping out of a horizontal cable tray, are physically separated by

- 1 inch vertically from a flexible conduit (containing a 2/0 AWG or smaller cable) or an ALS cable when an electrical fault occurs in either the conduit or to the ALS cable.

3. The acceptability of design / construction was demonstrated where a

' horizontal ladder rung cable tray is physically separated by 3/4 inch vertleally from a metal clad or armored cable when an electrical fault occurs in the metal clad or armored cable.

7.4 Configuration Number 3 Test Configuration Number 3 consisted of a test between a free air faulted cable and a cable inside flexible conduit mounted 1 inch verticaHy above the fault cable.

7.4.1 Purpose The purpose of this test was to demonstrate the adequacy of design where a free air cable, after dmpping out of a cable tray, is physically separated by 1 inch vertically from a flexible conduit when an electrical fault occurs to the free air cable.

7.4.2 Description The cables tested and their electrical powering were as follows:

_ Cable Size Pimetion Location Powering 3-1/C 2/0 AWG Fault Cable Free Air 204A, 300A, 2600A

  • r 2/C 14 AWG Target Cable Inside 1 In. 13A at 120 VAC Flexible Conduit Initial Current, Current at 90 C Jacket Temperature, and Test Current a

'T I

WYLE LABORATORIES Hunt $vtHe F4Cility

age c. 22 9510- 1 x3 A010 1 032 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIPTION (Continued) 7.4.3 Results The results of this test are briefly described in the following table:

Cable Size Pimetion Imention Maximum Temperature 3-1/C 2/0 AWG Fault Cable 0 Free Air 1392 F 2/C 14 AWG Target Cable Inside 1 In. 469 F Flexible Conduit N/A N/A Outside 1 In. 895 F Flexible Conduit Time to Open Circuit: 83.92 seconds at 2600A Time to Ignition: 60 seconds Insulation Burn Time: 9.3 minutes

(/

w

) Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests 7.4.4 Conclusions The above results generated the following conclusion:

1. The acceptability of design / construction was demonstrated where a flexible steel conduit is physically separated by 1 inch vertically from a free air cable, of size 2/0 AWG or smaller, when an electrical fault occurs to the free air cable.

1

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~ WYLE LABORATORIES mni.,m. p.ciniy I

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,, 9510-1X3A010-15-1 033 Paga No. 23 Test Report No. 48141-02 4

7.0 TEST PROGRAM DESCRIP110N (Continued) 7.5 Cum""Wetion Number 4 Tests Configuration Number 4 consisted of three tests between free air cables entering an

. enclosure. For Tests No.1 and 1A, the faulted cable was wrapped. For Test No. 2, the target cables were wrapped. The vertical separation was 1 inch for Tests 1 and 2, and  !

. 6 inches for Test 1A. The wrapping consisted of a single layer,100% overlap (Tests 1 and 2) '

or 200% overlap (Test 1A) of SILTEMP 188 CH wrapping material.

7.5.1 Purpose

l ,

The purposes of these tests were to:

I -

1. Demonstrate the adequacy of design of using Silleon Dioxide Cloth (SDC) as a separation barrier for free air cables, which are separated by 11ach verticaHy

, and are outside of a NEMA-1 enclosure, when an electrical fault occurs in the i ., wrapped cable.

- 2. Demonstrate the adequacy of design of using Silicon Dioxide Cloth (SDC) as a separation barrier for free air cables, which are separated by linch vertically f and are outside of a NEMA-1 enclosure, when an electrical fault occurs in the unwrapped cable.

7.5.2 Description j The cables tested and their electrical powering were as follows.

7.5.2.1 Test No.1

Cable Size Feetion Loestion Powering

, 3-1/C 500 MCM Fault Cable Inside Wrap 477A, 695 A, 2600A, And 6700A*

j 3/C 12 AWG Target Cable 1 In. Above 17A at 480 VAC Fault Cable 2/C 14 AWG Target Cable 1 In. Above 13A at 120 VAC Fault Cable i

7/C 16 AWG Target Cable 1 In. Above 1A at 50 VAC Fault Cable

! , STP 16 AWG Target Cable 1 In. Above 1A at 50 VAC i

4 Fault Cable lhltlal Current, Current at 90'C Jacket Temperature, j Test Current, and Short-Circuit Current

~

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9510-1X3A010-15-1 039 Page Nc. 24 Test Report Ne. 48141-02 9.7.0 TEST PROGRAM DESCRIP1 TON (Continued) 7.5 Configuration Number 4 Tests (Continued) l

~

7.5.2.2 Test No.1A Cable Size Pmetion Imeetion Powering 3-1/C 500 MCM Fault Cable Inside Wrap 477A, 695 A, 2600A

  • 3/C 12 AWG Target Cable 6 In. Above 17A at 480 VAC Fault Cable

^

2/C 14 AWG Target Cable 6 In. Above 13A at 120 VAC Fault Cable 7/C 16 AWG Target Cable 6 In. Above

- 1A at 50 VAC Fault Cable

~

STP 16 AWG Target Cable 6 In. Above 1A at 50 VAC Fault Cable g-

  • Initial Current, Current at 90 C Jacket Temperature,

/3 and Test Current O

7.5.2.3 Test No. 2 Cable Size Function Locaticn Powering 3-1/C 500 MCM Fault Cable Free Air 477A, 670 A, 2600 A, 1 In. Below And 6920A*

Target Cables 3/C 12 AWG Target Cable Wrapped 17A at 480 VAC 2/C 14 AWG Target Cable Wrapped I 13A at 120 VAC 7/C 16 AWG Target Cable Wrapped 1A at 50 VAC STP 16 AWG Target Cable Wrapped 1A at 50 VAC

- Initial Current, Current at 90 C Jacket Temperature, Test Current, and Short-Circuit Current l

WYLE LABORATORIES HuntsnHe Facihty

Paga Ne. 25 9510-1X3A010-15-1 035 Test Report No. 48141-02 i

7.0 TEST PROGRAM DESCRIPTION (Continued) 7.5 Configuration Number 4 Tests (Continued) 7.5.3 -

Results The results of these tests are briefly described in the following tables.

7.5.3.1 Test No.1 Cable Size Fametion Location Maximum Temperature 3-1/C 500 MCM Fault Cable Inside Wrap 1518 F N/A N/A Outside of Wrap 1058"F q 3/C 12 AWG,2/C 14 AWG, Target Cables 1 In. Above 972 F 7/C 16 AWG & STP 16 AWG Fault Cable

, N/A N/A Inside Enclosure 1246 F

)

n. Time to Open Circult: 'Ite fault cable did not open-circuit at the 2600-ampere fault current. The conductors shorted together after I- 791.56 seconds. At this point, the current was increased to the maximum Multi-Amp Test Set output (6700 amperes). The cable opened in 58.72 seconds at this current level.

Time to Ignition: 671 seconds at 2600 A.

(Time to explosion inside the enclosure.)

Insulation Burn Time: 11.1 minutes Target Cable Performance:

The 2/C 14 AWG,7/C 16 AWG and STP 16 AWG target cables blew their power supply fuses and did not pass the Post-Overcurrent Test Functional Tests. The 3/C r.

12 AWG target cable conducted 17 amperes at 480 VAC

, and passed the Post-Overcurrent Test Functional Tests.

Based on the above test failures, this test was performed again (designated Configuration No. 4, Test I A) with the following changes:

1. The fault cable was wrapped inside the enclosure. During Test 1, it was unwrapped inside the enclosure.

2.

The fault cable wrapping was increased by one layer of SILTEMP 188 CH (i.e.,

200% overlap versus 100% overlep).

b 3.

The vertical separation distance between the fault and target cables was 6

increased to 6 inches from 1 inch.

WYLE LABORATORIES Huntsvine Facinty

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Paga No. 26 9510-1X3A010-15-1 036 Test Report No. 48141-02 l

. 7.0 TEST PROGRAM DESCRIPTION (Continued) 7.5 Configuration Number 4 Tests (Continued) p.

7.5.3.2 - Test No.1A Cable Size Pimetion Location Maximum Temperature f

i.5 3-1/C 500 MCM Fault Cable Inside Wrap 1527 F

,. N/A N/A Outside of Wrap 927 F

," 3/C 12 AWG,2/C 14 AWG, Target Cables 6 In. Above 4560F 7/C 16 AWG & STP 16 AWG Fault Cable N/A N/A Inside Enclosure 1150 F Time to Open Circuit: 1643.49 seconds at 2600A l Time to Ignition: 720 seconds (Enclosure explosion occurred at 1196 seconds.)

Insulation Burn Time: 20.4 minutes Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pased Post-Overcurrent Test Functional Tests 7.5.3.3 Test No. 2

, Cable Size Ptmetion Location Maximum Temperature 3-1/C 500 MCM Fault Cable Unwrapped 1 In. 1580 F Below Targets 3/C 12 AWG,2/C 14 AWG, Target Cables Inside Wrap 691 F 7/C 16 AWG & STP 16 AWG N/A N/A Outside of Wrap 1553 F N/A N/A Inside Enclosure 985 F 0

Time to Open Circuit: The fault cable did not open-circuit at the 2600-ampere

  • fault current. The conductors shorted together after 720.19 seconds. At this point, the current was increased to the maximum Multi-Amp Test Set output (6920 amperes). The cable opened in 56.86 seconds at this current level.

Time to Ignition: 660 seconds

, (Enclosure explosion also occurred at this time.)

Insulation Burn Time: 12.1 minutes Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pamed Post-Overcurrent Test Functional Tests 4

WYLE LABORATORIES Huntsnlie EaC#hty

Paga Nc. 27 9510-1X3AQ10-15-1 037 Test Report No. 48141-02 t

7.0 TEST PRCGRAM DESCRIP'110N (Centinued) 7.5 Configuration Number 4 Tests (Continued)

. {

7.5.4 Conclusions

,, The above results generated the following conclusions:

a 1. The acceptability of design / construction where two free air cables are physically

, separated by 1 inch vertfeally entering an enclosure, with the faulted cable wrapped in a single layer, 100 % overlap, of SILTEMP 188 CH, was not u .. demonstrated by this test. The 100% overlap on the wrapping did not adequately filter out combustionable gases and thus an external fire was able to track outside of the wrap with violent flames that reached 36 inches in height. This fire severely damaged the target cables mounted 1 inch above the faulted cable.

, 2. The acceptability of design / construction was demonstrated where two free air cables are physically separated by 6 inches vertically entering an enclosure, with the faulted cable wrapped in a single layer, 200% overlap, of SILTEMP 188 CH

, wrapping material. The additionallayer of wrapping material was able to reduce the flame height outside the wrap to approximately 6 inches by filtering out some of the combustionable gases. It should be noted that this wrapping is also necessary inside of the enclosure.

I~

(3 3. The acceptability of design / construction was demonstrated where two free air V'

cables are physically separated by 1 inch vertically entering an enclosure, with the target cables wrapped in a single layer,100% overlap,,of SILTEMP 188 CH wrapping material. This wrap was able to reducg the 1553 F peak temperature outside the wrap to a peak temperature of 691 F inside the wrap. The target cable jackets were physically deformed after this test, but the electrical integrity of the cables was not affected.

A m

WYLE LABORATORIES

- Huritsville Facility

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1paga Ric. 28

, 9510-1x3o010-15-1 038 Test Report No. 48141-02 I

7.0 TEST PROGRAM DESCRIPTION (Continued) 7.6 Configuration Number 5 Tests Configuration Number 5 consisted of three tests between two rigid steel ecaduits. For Tests 1 and 3, the conduits were parallel and ia-contact. For Test 2, the conduits were

,,' perpendicular and separated by 1/8 inch. The faulted cable was in the bottoni conduit for Tests 1 and 2, and in the left conduit for Test 3.

7.8.1 Purpose

The purposes of these tests were to
1. Demonstrate the rigid steel conduits carrying control, instrumentation, or power cables (where the power cable is limited to 480 volts or lower and No.12 AWG or smaller) are allowed to touch each other.

P4 2.

Demonstrate the adequacy of design where a rigid steel conduit carrying 480 V MCC cables,120 VAC cables, or 125 VDC cables, is physically separated by

' 1/8 inch vertically from the surface of any rigid steel conduit crossing above, which contains 480 V MCC cables,120 VAC cables, or 125 VDC cables.

3.

Demonstrate that rigid steel conduits carrying 480 V MCC cables,120 VAC cables, or 125 VDC cables, are allowed to touch each other when installed in a horizontal, side-by-side configuration.

7.6.2 Description The cables tested and their electrical powering were as follows.

L~ 7.6.2.1 Test No.1 Cable Size Punction Location Powering 3/C 12 AWG Fault Cable Inside Lower 17A, 35 A, 622A

  • 3/4 In. Conduit 2/C 14 AWG Target Cable Inside Upper 13A at 120 VAC 3/4 In. Conduit Initial Current, Current at 90 C Jacket Temperature,

, and Test Current I

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Paga No. 19 9510 - 1 X36010 1 039 Test Report No. 48141-02 I'

7.0 TEST PROGRAM DESCRIP'I10N (Continued) 7.6 Configuration Number 5 Tests (Continued) r 7.6.2.2 - Test No. 2 Cable Size Function Location Powering 3-1/C 500 MCM Fault Cable Inside 477A, 460A, 2600 A, 4 In. Conduit and 3850A*

2/C 14 AWG Target Cable Inside 13A at 120 VAC 4 In. Conduit Initial Current, Current at 90 C Jacket Temperature, Test Current, and Short Circuit Current 7.6.2.3 Test No. 3

[ Cable Size Function Location Powering 3-1/C 2/0 AWG Fault Cable Inside 3 In. 204A, 245 A, 2600A

  • Left Conduit b-2/C 14 AWG Target Cable Inside 3/4 In. 13A at 120 VAC Right Conduit Initial Current, Current at 90 C Jacket Temperature, and Test Current

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9G10-1X3AQ10-1G-1 090 l Test R: port No. 48141-02 1 7.0 TEST PROGRAM DESCRIPTION (Continued) 7.6 Configuration Number 5 T,ests (Continued) 7.6.3 -

Results The results of these tests are briefly described in the following tables.

7.6.3.1 Test No.1 Cable Size Function Location Maximum Temperature 3/C 12 AWG Fault Cable Inside Lower 757 F 3/4 In. Conduit N/A N/A Outside Fault 429 F Conduit f

2/C 14 AWG Target Cable Inside Upper 214 F 3/4 In. Conduit I, . N/A N/A Outside Target 181 F Conduit Time to Open Circuit: 82.99 seconds at 622A Time to Ignition: None Insulation Burn Time: N/A Target Cable Performance: Conducted Rated Current thrcaghout Overcurrent Test and passed Post-Overcurrent Test Functional Tests v 7.6.3.2 Test No. 2 Cable Size Function Location Maximum Temperature 3-1/C 500 MCM Fault Cable Inside 0 1985 F 4 In. Conduit N/A N/A Outside 1002 F L, 4 In. Conduit 2/C 14 AWG Target Cable Inside 317 F 3/4 In. Conduit N/A N/A Outside 563 F 3/4 In. Conduit

,, Time to Open Circult: Die fault cable did not open-circuit at the 2600-ampere 4 fault current. The conductors shorted together after 1018.09 seconds. At this point, the current was

,[ increased to 3850 amperes (the maximum Multi-Amp g Test Set output). The cable open-circuited in 164.81 seconds at this current level.

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Paga No. 31 l 9510-1X3A010-15-1 041 Test Report No. 48141-02 7.'0 TEST PROGRAM DESCRIP'I10N (Continued) l 7.6 Configuration Number 5 Tests (Continued)

. , . 7.6.3.2 Test No. 2 (Continued)

Time to Ignition: 630 seconds 1 p Insulation Burn Time: 14.2 minutes  !

1. Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and pased Post-Overeurrent Test Functional Tests 7.6.3.3 Test No. 3 l r Cable Size Punction Location Maximum Temperature 3-1/C 2/0 AWG Fault Cable Inside 8740F

, 3 In. Conduit N/A N/A Outside 348 F 3 In. Conduit

( 2/C 14 AWG Target Cable Inside 196 F 3/4 In. Conduit N/A N/A Outside 253 F 3/4 In. Conduit Time to Open Circuit: 137.58 seconds at 2600A Time to Ignition: None Insulation Burn Time: N/A Target Cable Performance: Conducted Rated Current throughout Overcurrent Test I

and pased Post-Overcurrent Test Functional Tests 7.6.4 Conclusions The above results generated the following conclusions:

1.

The acceptability of design / construction was demonstrated where two rigid steel r' conduits are in-contact with each other (one on top of the other) when the faulted cable is limited to a No.12 AWG or smaller cable.

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2. The acceptability of design / construction was demonstrated when two perpendicular rigid steel conduits are physically separated by 1/8 inch when the

, worst case electrical fault occurs in the lower conduit.

3.

Tne acceptability of design / construction was demonstrated when two rigid steel conduits am in-contact with each other (side-by-side) when the faulted cable is limited to a No. 2/0 AWG or smaller cable.

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f 9510- 1X3AQ10 1 042 Pega No. 32 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIPTION (Continued) 7.7 , Configuration Number 6 Tests Configuration Number 6 consisted of three tests between cables inside a panel. For Tests No. I and 2, the cables were in-contact with the fault cable wrapped in Test I and the target cable wrapped in Test 2. For Test No. 3, the cables were separated by 1 inch with no wrappings. The cable wrap consisted of a single layer,100% overlap, of SILTEMP 188 CH for Tests No. I and 2.

7.7.1 Purpose The purposes of these tests were to:

1. Demonstrate that, in a panel, main control room, or cable spreading room, a

( faulted 125 VDC or 120 VAC control cable will not affect cable enclosed in a SDC* wrap with zero-inch separation.

2. Demonstrate that, in a panel, main control room, or cable spreading room, a I

faulted 125 VDC or 120 VAC control cable enclosed in an SDC w up will not affect free air cables with zero-inch separation.

I. 3. Demonstrate that, in a panel, main control room, or cable spreading room, a faulted, unwrapped 125 VDC or 120 VAC control cable will not affect free air O' cables with one-inch separation.

7.7.2 Description The cables tested and their electrical powering were as follows.

7.7.2.1 Test No.1 Cable Size Function Location Powering 1/C 8 AWG SIS Fault Cable Outside Wrap 72 A,115 A, 566 A

  • 1/C 12 AWG Target Cable Inside Wrap 13A at 120 VAC 2/C 14 AWG Target Cable Inside Wrap 13A at 120 VAC 7/C 16 AWG Target Cable Inside Wrap 1A at 50 VAC STP 16 AWG Target Cable Inside Wrap 1A at 50 VAC

"" Initial Current, Current at 90 C Jacket Temperature, and Test Current SDC = Silicon Dioxide Cloth (SILTEMP 188 CH)

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I 9510-1X3A010-15-1 043 paga No. 33 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIPTTON (Continued) 7.7 ,

Configuration Number 6 Tests (Continued)

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7.7J.2 Test No. 2

_, Cable Size Function Location Powering 1/C 8 AWG SIS Fault Cable Inside Wrap 72A,105A, 566A

  • 1/C 12 AWG Target Cable Outside Wrap 13A at 120 VAC 2/C 14 AWG Target Cable Outside Wrap 13A at 120 VAC 7/C 16 AWG Target Cable Outside Wrap 1A at 50 VAC STP 16 AWG Target Cable Outside Wrap 1A at 50 VAC
  • 0 Initial Current, Current at 90 C Jacket Temperature, and Test Current 7.7.2.3 Test No. 3 Cable Size Fametion Location Powering 1/C 8 AWG SIS Fault Cable 1 In. Below 72A,114 A, 566A
  • P*

Target Cables 1/C 12 AWG Target Cable Free Air 13A at 120 VAC 2/C 14 AWG Target Cable Free Air 13A at 120 VAC 7/C 16 AWG Target Cable Free Air 1A at 50 VAC

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STP 16 AWG Target Cable Free Air IA at 50 VAC

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Initial Current, Current at 90 C Jacket Temperature, and Test Current r.

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9510-1X3A010-15-1 OM paga No. 34 Test Report No. 48141-02 l' 7.0 TEST PROGRAM DESCRIP'ITON (Continued) 7.7 Configuration Number 6 Tests (Continued) 7.7.3 Results The results of these tests are briefly described in the following tables.

7.7.3.1 Test No.1 Cable Size Fametion Location Maximum Temperature 1/C 8 AWG SIS Fault Cable Outside Wrap 631 F 1/C 12 AWG,2/C 14 AWG, Target Cables U

,, Inside Wrap 216 F 7/C 16 AWG & STP 16 AWG N/A N/A Outside Wrap 175 F Time to Open Circuit: 35.73 seconds at 566A

, Time to Ignition: 35 seconds Insulation Burn Time: 16 seconds Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests

( 7.7.3.2 Test No. 2 l

Cable Size Function Location Maximum Temperature 1/C 8 AWG SIS Fault Cable Inside Wrap - 1324"F

., N/A N/A Outside Wrap 340 F 1/C 12 AWG,2/C 14 AWG, Target Cables Outside Wrap 204 F 7/C 16 AWG & STP 16 AWG Time to Open Circult: 39.62 seconds at 566A Time to Ignition: 31 seconds Insulation Burn Time: 44 seconds Target Cable Performance: Conducted Rated Current throughout Overcurrent Test and passed Post-Overcurrent Test Functional Tests (q'TJ'

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Paga No. 35 Test Report No. 48141-02 i

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7.0 TEST PROGRAM DESCRIP110N (Continued) 7.7 , Configuration Number 6 Tests (Continued) 7.7JJ Test No. 3 l

Cable Size Function Location Maximum Temperature i 1/C 8 AWG SIS 0 Fault Cable 1 In. Below 1364 F Target Cables 1/C 12 AWG,2/C 14 AWG, Target Cables Free Air 438 F 7/C 16 AWG & STP 16 AWG

,. Time to Open Circuit: 33.23 seconds at 566A Time to Ignition: 32 seconds Insulation Burn Time: 32 seconds Target Cable Performance: Conducted Rated Current throughout Overcurrent Test

, and passed Post-Overcurrent Test Functional Tests 7.7.4 Copehmalons The above results generated the following conclusions:

i 1. The acceptability of design / construction was demonstrated in a panel, main control room, or cable spreading room, that two low energy or control-type -

cables can be mounted in-contact with each other, with either cable wrapped inside a single layer,100% overlap, of SILTEMP 188 CH material, when the worst case electrical fault occurs in either cable.

2. The acceptability of design / construction was demonstrated in a panel, main control room, or cable spreading room that two low energy or control-type cables can be mounted physically separated by 1 inch vertically when the worst case electrical fault occurs to the lower cable.

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i 9510-1X3A010-15-1 096 Pag 3 No. 36  !

Test Report No. 48141-02 l I

9 7.0 TEST PROGRAM DESCRIP' HON (Continued) 7.8 Ampacity Tests t.

The Amgacity Tests consisted of six tests to ptermine the current that created a steady-state 90 C conductor temperature inside a 40 C ambient. Two tests were run with each cable size: one unwrapped in free air and one with a single layer,200% overlap, of SILTEMP 188 CH wrap applied.

7.8.1 Purpose  !

t he purpose of these tests was to demonstrate that the rated operating temperature (90 C) l 1s not exceeded for cables wrapped in SILTEMP 188 CH protective wrap, when the design ampacities at the VEGP are utilized, and thus no additional derating is required when this barrier material is installed.

7.8.2 Description l The cables tested and the currents utilized were as follows:

Wrapped or hitial Peak *

  • Test No. Cable Size Unwrapped Current Current 3 3-1/C 2/0 AWG Unwrapped 222A 331A 4 3-1/C 2/0 AWG Wrapped 198A 246A 5 2/C 8 AWG Unwrapped 50A 100A h,

6 2/C 8 AWG Wrapped 44A 81A 7 Six-1/C 12 AWG Unwrapped 20A 46.5A 8 Six-1/C 12 AWG Wrapped 18A 33.5A

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Tests 1 and 2 were to be conducted using a 3/C 500 MCM armored cable as a test specimen. However, the Configuration 2, Test 5, showed that no wrapping was r-required. 'Ihese two tests were then deleted. The remaining test numbers were not revised after this deletion.

We peak current caused conductor temperatures to increase above 910C.

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9510-1X3A010-15-1 097 Pag 3 No. 37 Test Report No. 48141-02 7.0 TEST PROGRAM DESCRIP1 TON (Continued) )

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7.8 Ampacity Tests (Continued) u 7.8.3 Results The results of the six Ampacity Tests are briefly summarized in the following table:

Wrapped or Bated Test *  % of Test No. Cable Size Unwrapped Curmnt Current Rated 3 3-1/C 2/0 AWG Unwrapped 247A 319A 129 %

, 4 3-1/C 2/0 AWG Wrapped 247A 234A 95 %

5 2/C 8 AWG Unwrapped 55A 97A 176 %

6 2/C 8 AWG Wrapped 55A 78A 142 %

7 Six-1/C 12 AWG Unwrapped 25A 44.5A 178 %

8 Six-1/C 12 AWG Wrapped 25A 31.5A 126 %

Cupnt that created a steady state 90 C +0.5 C conductor temperature in a 40 C ambient.

7.8.4 Conclusions g The above results generated the following conclusion:

1. No additional derating beyond current plant design ampacities is required when a

,, single layer, 200% overlap, of SILTEMP 188 CH protective wrap is applied to cables at the Vogtle Electric Generating Plant.

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9510-1x3A010-15-1 048 Page No. 38 r-Test ReporL No. #8141-02 8.0 QUAIITY ASSURANCE All work performed on this test program was done in aceo. dance with Wyle Laboratories' Quality Assurance Program, which complies with the applicable requirements of 10 CFR 50,

' Appendix B; ANSI N45.2, and the " daughter" standards. Defects are reported in accordance with the requirements of 10 CFR Part 21.

n 9.0 TEST EQUIPMENT AND INSTRUMENTA'I10N All instrumentation, measuring, and test equipment used in the performance of this test program were calibrated in accordance with Wyle Laboratories' Quality Assurance Program, a whleh compiles with the requirements of Military Specification MIIMrTD-45662. Standards used in performing all calibrations are traceaole to the National Bureau of Standards by

" report number and date. When no national standards exist, the standards are traceable to international standards or the basis for calibration is otherwise documented.

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9510 - 1 x3 An 10 1 050 *E' I'1 Test Report No. 48141-02 t'

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SEC'110N I

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SCREENING TESTS (TESTS TO DETERMINE THE WORST CASE CABLE) 1.0 REQUIREMENTS 1.1 Acceptance Criteria

There were no acceptance criteria for these tests. The screening tests were conducted to determine which cable, if faulted, would have the most impact on adjacent cables.

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2.0 PROCEDURES 2.1 Test Specimen Identification An inspection was performed upon receipt of the test specimen components at Wyle Laboratories. This inspection verified that the test specimens were as described in Paragraph 6.0 of the Summary section. Appilcable manufacturer, model, part and serial numbers were verified and recorded on the Test Specimen Inspection Sheets of Appendix !.

The test specimens were labeled to facilitate identification throughout the test program.

2.2 s,.ciing Tests Ten tests were conducted in free air for various cable loads to determine the cable which, if faulted, would have the most impact on adjacent cables. The first seven tests were conducted using power-type cables. The last three tests were conducted using control-type cable.

2.2.1 Test Specimen Preparation

1. The screening tests were conducted using a single run of the faulted cable supported by a 10-foot cable tray from VEGP stock. The cable tray was filled to its sidera11s for all the tests with passive cables that served as fuel should an Ignition occur. The cable was connected to the Multi-Amp Test Set per Figure 19 of Section IX.
2. The ends of the faulted cable from their termination to the edge of the cable tray were wrapped with a single layer, 50% overlap, of SILTEMP
f. WT-65 covered with a single layer, 50% overlap, of 3M No. 69 glass tape.

This was donc as a safety measure to ensure that any ignition that occurred was contained to the cable tray area.

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ti Test Report No. 48141-02 ~

2.0 PROCEDURES (Continued) 93 2.2 Screening Tests (Continued) .,

2.2.2 Instrumentation Setup 2.2.2.1 '1hermoeogle Locations l

A total of 32 Type "K" thermocouples were utilized for these tests. These thermocouples d were mounted as described below:

Channel No. Location ..

1-10 Mounted directly to the outer cable jacket. These -

thermocouples were mounted approximately ten inches apart.

11-31 Mounted in free air and spaced as shown in Figure I-1.

32 Ambient Temperature probe. l These thermocouples were monitored using a Fluke Datalogger feeding a high-speed printer.

The datalogger was operated at its maximum rate throughout the screening test.

2.2.2.2 Electrical Monitoring The current to the test specimen was recorded with the test time that current was changed. '

These readings were taken using the Multi-Amp Test Set.

2.2.3 Screening Tests '

The screening tests consisted of three sequential phases with no intentional time delay

between phases. The first phase consisted of powering the cable for 10 minutes with rated current.

This was done to establish normal operating tempergtures on the cable.

second phase consisted of raising the current to reach 189-199 P jacket temperature'The for ~

15 minutes. The third phase consisted of energizing the cable with the worst case electrical fault *. The cable was subjected to this current level until either the cable open-circulted or ,

the cable conductors shorted together. In the event a short-circuit occurred, the test current was increased to the maximum available current from the Multi-Amp CB-8130 Test Set.

'Ihe term " worst case electrical fault" refers to the most severe credible electrical fault (as determined by Bechtel) at the Vogtle Electric Generating Plant. This worst case electrical fault was assumed to be a fault whose current magnitude was just below the trip setpoint of the backup circuit breaker and continued until the cable open-circulted, shorted phase-to-phase, or untQ temperatures stabilized on the fault and target cable without evidence of short-circulting. i' t

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9510-1X3A010-15-1 052 Paga NO. I-3 Test Report No. 48141-02 I ~

O 2.0 PROCEDURES (Continued)

- 2.2 ,

Screenirig Tests (Continued) 1.2.3 Screening Tests (Continued)

The screening test was conducted using the following procedure:

1.

- The test specimen was connected to the Multi-Amp Test Set output stabs per Figure 19 of Section IX. The cable terminations were made in series

, for Tests 4-7 and in parallel for Tests 1, 2, 3, 8, 9,and 10.

.. 2.

The appilcable rated current from Table I was applied to the test specimen for 10 minutes.

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3. 'the applied current and initial maximum cable temperature reched after the rated current appilcation were recorded.
4. Pault eagle currgnt

- increased until fault cable temperatures Indicated 90 + 1.2 C (189 - 19 F). p current level was adjusted to maintain

, cabfe~ temperature 189 - 199 P for 15 minutes.

5.

The applied current and maximum fault cable jacket temperature were recorded.

6.

The appilcable test current from Table I was applied to the test specimen.

7.

The cable was allowed to conduct the test current until either an open-

,. circuit occurred or the cable conductors shorted together.

8.

Elapsed time, maximum fault cable temperature, and applied current were recorded.

9.

When an open-circuit occurred, Step 12 was the next to be performed.

10.

When the fault cable conductors shorted together (Jacket temperatures decreasing and les power required to maintain a constant current), a short-circuit was simulated. This short-circuit consisted of applying the

'- maximum available output of the Mult!-Amp Test Set until the fault cable open-circuited.

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11.

Time to ignition and insulation burn time were recorded, if applicable.

{ 12. The Multi-Amp Test Set output was de-energized.

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2.0 PROCEDURES (Continued) 2.2 Screening Tests (Contimand) 2.2.3 Screening Tests (Continued)

TABLEI Conduit Test Cable VEGP Bated Current Test Current

  • No. Size LD.No. (Amperes) (Amperes) 1 3/C 12 AWG 838 27 880A 2 3/C 8 AWG 83B 52 880A 3 3/C 4 AWG 83D 91 880A 4 3/C 1 AWG 83P 141 880A 5 3-1/C 2/0 AWG 81H 204 2600A 6 3-1/C 350 MCM 81L 384 2600A '

7 3-1/C 500 MCM 81M 477 2600A 8 2/C 4 AWG A2D 104 566A 9 2/C 8 AWG A2B 60 566A 10 2/C 10 AWG A29 41 566A Applied test currents were the listed values or the maximum Multi-Amp Test Set output, whichever was the lower current.

2.2.4 Worst Case Cable (WCC) Selection - Armored Cable, Metal Clad Cable, Aluminum Sheath Lighting Cable and sls Wire

1. The selection of tre 1/C 8 AWG SIS and 3/C 500 MCM or armored cable (AC) as the worst case cables for the Conf!guration No. 6 Tests or Configuration No. 2, Te .t 5, respectively, was made based on past proprietary testing expe:lence and expected plant construction. These i previous tests had shor.n that ignition was an unlikely event on SIS and armored cable. Therdore, the conservative approach would be to use the i largest possible size of these cable types, since it would be expected to 3I conduct the fault the longest, consequently releasing the maximum amount j of heat to the environment.
2. The 2/C 8 AWG Metal Clad Cable (MCC) and the 3/C 8 AWG Aluminum Sheath Lighting Cable (ALS) were selected as the fault cable for'the )

Configuration No. 2, Tests 3 and 4, respectively, since these are the largest cables of that construction utilized and therefore capable of delivering the maximum amount of heat to the environment. l i

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9510-1X3A010-15-1 004 Test Report No. 48141-02 3.0 RESULT 5 L.

The 10 screening tests were conducted as described in Paragraph 2.0. No anomalies occurred during the screening tests. 'Ihe results obtained from the screening tests are summarized in the following tables.

. TABLEE CURRENTS APPLIED, TIME TO IGNFTION, AND TIME 'ID OPEN-CIRCUIT Test Pault Cable Curwnt at 90'C Test Time to ' time to No. Burn Size Jacket Temperature Curant Wtion Open-Circuit Time 1 3/C 12 AWG 58.3A 577A None 44.47 see N/A 2 3/C 8 AWG 98A 843A None 38.31 see N/A 3 3/C 4 AWG 162A 880A 38 see 104.48 see b

4 3/C 1 AWG 275A 880A 520 see 450.50 see 4.2 min 5 3-1/C 2/0 AWG 323A 2600A 59 sec 73.30 sec 6.9 min 6 3-1/C 350 MCM 615A 2600A 287 sec 325.C3 see (1) 9.3 min 7 3-1/C 500 MCM 740A 2600A 743 sec 838.54 see (2) 11.0 min

, 8 2/C 4 AWG 188A 566A None 336.54 see N/A 9 2/C 8 AWG 101A 566A 29 sec 58.73 see 1.8 min 10 2/C 10 AWG 78A 560A None 34.46 see N/A NOTES:

(1) Time to short-circuit with test current applied.

,' Open-circuit occurred 24.40 seconds after short-circuit.

Short-circuit current - 7300A.

(2) Time to short-circuit with test current applied.

Open-circuit occurred 33.63 seconds af ter short-circuit.

Short-circuit current - 8200A.

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3.0 - RESUL'IS (Continued)

L TABLEII --

MAXIMUM TEMPERATURES -

Test Fault Cable Fault Cable l' 8" 8.5" No. Stae Jacket Above Above Above 1 3/C 12 AWG 447.6'F 484.4 F 91.0'F 80.3 F ,

2 3/C 8 AWG 351.9 F 104.1 P 419.5 F 100.6 F 3 3/C 4 AWG 491.1'F 0 142.1 F 272.4 F 112.3 P 4 3/C 1 AWG 866.4 F 237.8 F 120.1 F 88.4 F 5 3-1/C 2/0 AWG 1330.6 F 1004.4 F 392.1 F 358.9'F 6 3-1/C 350 MCM 1337.5*F 1467.5 F 1202.0*1) 412.4 F 7 3-1/C 500 MCM 1808.2 F 0 '

1640.5 F 1356.0'F 1233.4 F 8 2/C 4 AWG 698.0*F 0 627.4 F 196.7 F 158.6"P 0 0 9 2/C 8 AWG 713.4 F 812.3 P 332.5 F 640.1 P 10 2/C 10 AWG 538.2'F 193.3'F 59.2 P Ambient Based on the results of the screening tests, the worst case cable for the subsequent configuration tests was selected using the following criteria:

1. 'Ihe 3-1/C 500 MCM cable was selected as the worst case cable since it:
1) conducted the test current for the longest period of time prior to
  • failing; 2) generated the highest jacket temperature; 3) delivered the .

most heat to the thermocouple array; 4) burned for the longest period of time after Igniting; and 5) was visually the most severe fire. This cable -

was selected for use as the fault cable in subsequent configurations where it could be located at the Vogtle Electric Generating Plant. '

2. The visual height of the flames and intensity of the fires during Tests No. 5 and 6 (350 MCM and 500 MCM), Indicated that restrictions on cable sizes in raceways would be necessary for several of the proposed configuration tests. Thus, the 3-1/C 2/0 AWG was selected as the worst '

case cable for several tests where a larger fault cable size would not be acceptable.

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9 3.0 RESULTS (Continued)

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The appendices contain the following data from these tests and test setup data from all testing:

Appendix I:

Test Specimen Inspection Sheets which document materials received from

, VEGP utilized in the test program.

- Appendix II: Test Setup Photographs which show the equipment used during ali phases of testing.

., Appendix III: Instrumentation Equipment Sheets which list equipment used to collect data through the end of the configuration tests. l Appendix IV: Figure I-1 which illustrates the test setup for the individual screening tests.

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Appendix V: Individual Test Data. This data is grouped into individual sections for each test. Each section contains: 1) Photographs of the test setup and post-test conditions; 2) A plot of temperatures versus time; and 3) Data Sheets which document Overcurrent Test Data.

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APPENDIX I TEST SPECIMEN INSPECTION SHEETB R

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Test Report Na 48141-02 TEST SPEClZEN INSPECTITAN CUSTOMER MIA #

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JOB NO. E  ! O j SPECIFICATION NW f~OI _

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DESCRIPTION MANUF. PARTIMODEL NO. o g%, 4 so )

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Page No. 1-13 9510-1X3A010-15-1 062 Test Report No. 48141-02

- TEST SPECIMEN INSPECTION

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L r-APPENDIX III INSTRUMENTATION EQUIPMENT SHEETS T

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'l INSTRlMENTATION EQUIPENT SEET PAGE 1 0F 1 DATE 02/25/86 .70B NO. 48141-00 LOCATION ACDUS/LOCA TEChh!CIAN VIC'CR RCMA0 CUSTIMER BE0iTEL TfPE TEST CABLE TEST NO. INSTRUMENT ?ANUFACTJRER MODELI SERIAL t WYLES RANGE 1 ACCURACY I CALDTE CALDUE

  • 1 DIS MTR KEITrt.EY 279 11952 O!!331 DC .045 12/04/85 12/04/86 2 2PL GALW HDEYELL T66A50 1358 095285 DC TO 5 KHZ 19 02/12/86 08/12/86 .

3 M DL GALVO CEYELL T66A50 1213 096567 DC TO 5 MHZ 1%F 02/12/86 08/12/86 4 MPL GALVO KMYWELL T5950 1939 011472 DC TO 5 KHZ IF 09/24/85 03/24/86 5 GPL GALW HONEYWELL T66A50 1200 094502 DC TO 5 KHZ 17 01/22/86 07/22/86 6 M PL GALVO HUNE M LL 766A5 1618 094505 DC TO 5 KNZ 15F 12/23/85 06/23/86 7 G PL GALVO n0NEYWELL T66A50 1087 094501 DC TO 5 KHZ 11F 12/23/85 06/23/ E ~

8 CSCILLOGRAPH t'ONEY'wELL 1508 151235 003085.1-80!N 25LIN 2%TL 10/18/85 04/18/86 9 CSCILLO6EPH HONEYWELL 1508 151307 011022.1-80!N/SEE 2%LIN 2%TL 12/23/85 06/23/86 10 DATA.066ER FLWE 2240B 2395039 102141 K8TI.5DE6 .02%RD 02/11/86 08/11/86 11 PRIXTERS TE145 INSTRUMNT RD-800 93320 003009 PM MF6 09/19/85 03/19/36 r 12 O!G NTR XEITHLEY 130 N/A 003105 DC +-0.5% 02/05/86 02/05/87 _

13 MTR CURRENT FLWI N/A N/A 092675 0-600 mp +-35 11/11/85 05/11/86 14 D!S MTR KEITHLEY 178 10829 O!!313 DC .045 09/25/85 03/25/86 6 15 1709 G SR0hNELL 5SFT N/A 100679 100/5AMD +-10% 09/25/85 03/25/86 16 IFONG BRCWNELL 5SFT N/A 100020 100/5 20 +-105 09/25/85 03/25/86 17 IFO B ER BROWNELL 5SFT N/A 100668 100/5 AMP +-10% 09/25/85 03/25/86 =,

18 IF0 DER BROWNELL 5SFT N/A 100676 100/5AfC +-105 09/25/85 03/25/86 19 IFORPER BR$NELL 5SFT N/A 102783 100/5 mp +-105 09/25/85 03/25/86 <

20 IF NG BRCWNELL SSFT N/A 100665 100/5m p +-101 09/25/85 03/25/86 21 IFGRM G BROWhELL SSFT N/A 100023 100/5 mp +-105 09/25/85 03/25/86 "

22 IF2&iR 3R0hNELL 5SFT N/A 100024 100/5 M P +-105 09/25/85 03/25/86 .

23 FC*G BROWNELL 5SFT N/A 100671 100/5 AMP +-105 09/25/85 03/25/86 24 IFGRFER BROWNELL 5SFT N/A 100670 100/5 AMP +-105 09/25/85 03/25/86 -

25 IFJ PER BROWNELL SSFT N/A 100675 100/5 AMP +-101 09/25/85 03/25/86 26 I~0RrER BRONELL SSFT N/A 100021 100/5 m p +-105 09/25/85 03/25/86 27 air SUPPLY IND INST HV 20129 159 011390 20KVAC +-55FS 12/16/85 06/16/86 .,

28 E G MTR GENERAL EDIO 1862-C 257 102992 .5-2E6 0 91 +-3% 02/24/86 08/24/86 29 DIG MTR H/P 34758 7439 011203 DC .5% 02/20/86 05/20/86 -

30 ETG CURRENT 4)LTI AMP CB8130 31208R 100413 60KM PS 1.55 02/17/86 02/17/88 THIS IS !D CERTIFY ~ HAT THE ABOVE INSTRUENTS WERE CALIBRATD USING STATE-OF-TE-ART TEDhlGUES,WITH S*ANDARDS WHOSE CAL:5RATI(N IS TRACEABLE TO TE NATICNAL BUREAU OF STANDARDS.

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/ DA*E 03/03/66 INSTRUMENTATION EQUI; MENT SEET JOB NC. 48141-00 LOCATION ACCUSTIC PAGE 1 Cr 1 TECHNICIAN VICTOR ROMA0 CUSTOME' BECHTEL TYPE TEST CABLE SEPARATION NO. INSTRtBENT MAEFACTURER MODELI SERIAL 8 WYLEI RANSE 1 J RACY 1 CALDTE CALDUE ACC' r-L 1 PWR SUPPLY IND INST HV 20129 153 011390 20KVAC/10KVDC *5%FS 02/28/86 08/18/86 2 ES MTR 6R 1864 657113180 011898 50K-50TCHN 2-55 RANGE 10/24/85 04/24/56 Th!S IS TO CERTIFY TMT THE ABOW INSTRtMENTS ERE CALIBRATO USING STATE {F-T4-ART TECHNIGUES,WITH STANDARDS IMOSE CALIBRATI(h IS TRACEABLE TO TE MTIONAL BUREAU (F STANDARDS.

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Page No. I-31 (P G 10 - 1 X 3 A Q 10 1 000 Test R: port No. 48141-02 DATA SHEET F Bechtel p) WYLE LABORATORIES \ Customer Specimen Cables Part No. 38' 8 * ' b, 40 I Amb. Temp. Job No. WLTP 48141 Yes/ Video S ec Photo Report No. 48141-02 Para. /N f - 33 Test Med. Air Start Date 8-M Y N/A S/N Specimen Temp. !Md'od 5 ggj N/A E McW SCREENING TEST NUMBER d Test Title / L l' FAULT CABLE SIZE /j / Jug, MANUFACTURER: CfcofE NO. CONDUCTORS: 3/c VEGP ID NO.- 63T

3. READINGS WITH INITIAL CURRENT APPLIED FAULT CABLE CURRENT: [f/7/ da MAX. JACKET TEMP.: N[
5. READINGS AT 90*C JACKET TEMPERATURE
         \

FAULT CABLE CURRENT: [$.34 /bE MAX. JACKET TEMP.: /ff#[ %) l 1

8. READINGS AFTER TEST CURRENT APPLIED FAULT CABLE CURRENT: f)7/7 /Abe meD&V MAX. JACKET TEMP.. 4453 "F
                                                    /

Time to Ignition: // M Time to Open Circuit: 4dh7AC. Time to Stable Temo. - A//A

10. SHORT CIRCUIT CURRENT APPLIED: Al[/f
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Time to Goen Circuit-6. r .. 6 M l

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Tested By ' Date: ~2 Y ' ' Witness I L'd U Date:

           .iotice of SE Sheet No. d                / of                  '

l Anomaly Approved - IM[ O "[I 'NV- @ l p m am es. e,ss ne, an sa ff lf/

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Page No. I-33 9510-1X3AG10-15-1 08best Report No. 48141-02 {' (. P

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L r. SCREENING TEST #2 DATA

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Photographs Figure Data Sheets v, c

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WYLE LABORATORIES Huntsvute FacWiry

1 Page No. 1-34 ' Test Report No. 48141-02

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j Paga No. I-37 9510-1X3AQ10-15-1 086 Test Report Ne, 48141-02 l DATA CHEET l Customer Bechtel WYLE LABORATORIES

  • Cables N*

p, , See Below Amb. Temo. WP Job No. 40I4I WLTP 48141 Yes/ Video S Photo Report No. 48141-02 Pa a JN .1. 5 32-3 Test Med. Air Start Date NM~N

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      '      S/N                                         Specimen Temp.

GSI N/A Test Title SCREENING TEST NUMBER #8-FAULT CABLE SIZE [Aa.$ MANUFACTURER : C#0Ah T6 NO. CONDUCTORS: k VEGP ID NO.- $3D 1

3. READINGS WITH INITIAL CURRENT APPLIED FAULT CABLE CURRENT:

5d r7/,/JM <6 MAX. JACKET TEMP.- /[/'f' r

5. READINGS AT 90*C JACKET TEMPERATURE FAULT CABLE CURRENT: kid /6[dy MAX. JACKET TEMP.: /f87 0,
8. REfDINGSAFTERTESTCURRENTAPPLIED FAULT CABLE CURRENT: $43ri/#Irf56 /A,s Take v MAX. JACKET TEMP.- 39T Time _to Ignition: //8?ti Time to Open Circuit: 3,7 E/A ,

Time to Stable Temp. -

10. SHORT CIRCUIT CURRENT APPLIED: M/4 Time to Ooen Circuit- A I

+ f , Tested

                                                                                      ^~

Date: N-2 N d

           ;                         ,                                Witness       M                 Date:

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Page No. 1-38 i Test Report No. 48141-02 i (

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     ;         9510-1X3 nato is 1                                                                                       090                                                                   Page No. I-41 2

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Paga No. I-43 { 9510-1X3A010-15-1 092 Test Report No. 48141-02 DATA CHEET ( Customer Bechtel WYLE LABORATORIES i Specimen Cables {~ Part No. 388 08 0* Amb. Temp. W Job No. 40I4I WLTP 48141 Yes/ Video Spec. Photo Report No. 48141-02 l l .r- Para. N 3 i 5 - AM3 Test Med. Air Start Date Ad ~85

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S/N Specimen TempA' bD GSI N/A ' Test Title SCREENING TEST NUMBER #3 FAULT CABLE SIZE 4 AC6 MANUFACTURER: O(cM/r7 l

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NO. CONDUCTORS: kC VEGP ID NO.- IM

3. READINGS WITH INITIAL CURRENT APPLIED FAULT CABLE CURRENT: @/ g/ /][ & MAX. JACKET TEMP.: 57FF
5. READINGS AT 90*C JACKET TEMPERATURE FAULT CABLE CURRENT: /fj f/4 JJe MAX. JACKET TEMP.: /95%

V

8. READINGS AFTER TEST CURRENT APPLIED FAULT CABLE CURRENT: T M / 4 2 4 1. L MAX. JACKET TEMP.- M/Y Time to Ignition: .3 3 Noa5 Time to Open Circuit: /o4 4S Ac. l Time to Stable Temo. - A d[4
10. SHORT CIRCUIT CURRENT APPLIED:

Time to Ooen Circuit- O[A ('

  • Sm Swa : 3. %A.

Sw Iw4L : ~ 4 ca 44e ik.54d a-/ He wwwJ ' 5,4 $ 00k [ h J i A' O k M l A lC bk W . t& ldO4- DA.lY %G h Ve'/N Tested B Date:2.'.cEi d E 'i N. '

  • Witness N '

Date: Aotice of Sheet No. ' ' of / l Anomaly N Approved I 26-fd w,. .=eiu.a m =

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e Paga No. I-49 9510- 1X3 AQ10 1 0 </ O Test Report No. 48141-02 DATA CHEET f Bechtel O Customer Cables WYLE LA8 ORATORIES See Below p , Amb. Temp. W Job No. 40I4I Spec WLTP 48141 Yes/ Video Photo Report No. 48141-02  ;

r. Para M315 37O Test Med. Air Start Date d'O 7' b b SIN N/A Specimen Temp. Sil N W GSI N/A Test Title SCREENING TEST NUMBER #h FAULT CABLE SIZE /[ Md MANUFACTURER: OfCM/TLS r

HO. CONDUCTORS: 3//' VEGP ID NO.- TM

3. READINGS WITH INITIAL CURRENT APPLIED FAULT CABLE CURRENT: {N 4 MAX. JACKET TEMP.: 58 #8
5. READINGS AT 90'C JACKET TEMPERATURE FAULT CABLE CURRENT: I Y r- ,@ 75 4 MAX. JACKET TEMP.: /ffY Q
           .          8.        READINGS AFTER TEST CURRENT APPLIED FAULT CABLE CURRENT:                 T70 4                             MAX. JACKET TEMP.-        I//CE q-                    Time to Ignition:                 .5SO JoA*                        Time to Open Circuit:             9.86 Scc N/A Time to Stable Temo. -

l

10. SHORT CIRCUIT CURRENT APPLIED: M r1C Time to Ooen Circuit- N!d fkt M NC d,tua ~

17 .4rc [. Bu.u k d _ ~/2 A k /i-NE

                                                                                                                 ^

Tested Date: S ~ A Ud Witness WI' Date: 4otice of ' Sheet No. '/ of #

 ..f           Anomaly                       b                                     Approved                               '

27' Y$ g'Aa b<

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A Page No. I-50 [ Test Report No. 48141-02 i

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J nis Page 1 tentionally Left Blank. i s d f l "1 r { 1 I WYLE LABORATORIES I Huntsvine Facnety

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Pagd No. I-51 9510 - 1 X3 AG 10 1 100 Test Report No. 48141-02 o i . t* s le i O m* P-he Me

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SCREENING TEST #5 DATA

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WYLE LABORATORIES r- Huntsville Facihty t l . . - ... . .. _ .... . . _ _ .

Paga No. I-52 Test Report No. 48141-02

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Page No, M4 Test Report No. 44141-02 9 j -

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Pag 2 No. 1-55 9510-1X3AQ10-15-1 104 es f rN 4 1-02 t'

 / \        Customer       Bechtel WYLE LABORATORIES Specimen       Ca bl es Part No 388 08
  • Amb. Temp. S W, Job No. O WL P 48141 Yes/ Video Spec Photo Report No. 48141-02 3-7 3 Start Date S-J6'- 5e Para. 'N 3M Test Med. Air S/N N/A SpecimenTemp. IN 06M #

v GSI N/A P* Test Title SCREENING TEST NUMBER T FAULT CABLE SIZE M/p //wC., MANUFACTURER: C#cA)frF NO. CONDUCTORS: - Id_ VEGP 10 NO.- Of t-l

3. READINGS WITH INITIAL CURRENT APPLIED FAULT CABLE CURRENT: p().p} MAX. JACKET TEMP.: $d'F l
5. READINGS AT 90*C JACKET TEMPERATURE
  ~                FAULT CABLE CURRENT:        393A                             MAX. JACKET TEMP.: / 74 #f
8. READINGS AFTER TEST CURRENT APPLIED FAULT CABLE CURRENT: M60B A MAX. JACKET TEMP.- /33/ Y Time to Ignition: 59 & Time to Open Circuit:#23 30 S r Time to Stable Temo. - Al /A P
10. SHORT CIRCUIT CURRENT APPLIED: Al/A ,

Time to Ooen Circuit- 4/[N [ /h AA fimo kM/L &vdie Gadd 6,>ai 54 m

     ~                -
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Tested By Witness I

                                                                                   - A'M R Date:

Date: 2O-[ dotice of  ?/ Sheet No. A / - of / Anomaly  !'N b Approved 'M b' 2 -2,Y- 5/,

                ,.      .      -                                                   ,/ @

f' ' 1.

n Pag 3 N3. I-56 *- Test Report No. 48141-02 9 i I 8 4d I1 I J This Page Intentionally Left Blank. 1

                                                                                    /
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7

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WYLE LABORATORIES net...n. reca iy

Page No. I-57 9G10- 1 X3 AG10 1 106 Test Report No. 48141-02 P* < s 6 c. SCREENING TEST #6 DATA (3-1/C 350 MCM) h ' Photographs Figure Data Sheets i r 6 . r~ f' r. 4

   ?

WYLE LABORATORIES r Huntsville F4Cihty _________2.__

Page No. I-58 "

                                                                                                                                                                                                                                                                                                                                                                           =
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Test Report No. 43141-02 i

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