ML20101J775

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Thermal Analysis - Cable Tray 3088
ML20101J775
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 12/02/1992
From: Lynn M
SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20101J726 List:
References
DC08490-004, DC08490-004-R01, DC8490-4, DC8490-4-R1, NUDOCS 9604020139
Download: ML20101J775 (8)
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01 V01W 0\ 0\ _Y SUBJECT CODE SOUTH CAROLINA & ELECTRIC AND GAS COMPANY PAGE ORD 1 Op 4 8 4 9 l 1 i CALC TITLE Thermal Analysis - Cable Tray CALC NO. REV STAT 3 88 ^ l bCO 3490-Do (

PARENT DOCUMENT SYSTEM SAFETY CLASS CALC. CLASS MRF 31971 ES NN QR g 11 gli s gj ORIGINATOR DISC ORGANIZATION DATE XREF NO. I M. C. LYNN EE SCE&G 11/ 19/92 DC-849-004 I A. CALCULATION INFORM ATION CONTENT DESCRIPTION: [ SEE REVISION Determines heat load of cables and verifies That the temperatures do not exceed the thermal limits of the insulation.

aMe / CaMe hay AFFECTED COMPONENTS / ANALYSIS:

CONTAINS PRELIMINARY DATA / ASSUMPTIONS:

X NO YES, PAGES X

COMPUTER PROGRAM USED: NO YES, VAllDATION NOT REQ'O [REF. 3.5) YES, VAllDATED [OTHERS)

Y ES, VALIDATED [ES-4121 PROGRAM VALIDATION CALCU LATION B. VERIFICATION O CONTINUED, ATTACHMENT VERIFICATION SCOPE: VERIFY THAT THE CLASSIFICATIONS AND TITLE REFLECT THE CONTENTS  !

0F THE CALCULATION.

l VERIFIER:

ASSIGN BY:

K. J. R0GERS 5.G.CAHHULL -

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\t.EAD ENGIN EER (D5$1G NEE)/D ATE '

VERIFIER /DATE APPROVAL /DATE N UDNq*

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\ INIT/DATg 1h ORIGINAL MAINTAINED BY:

P SCE&G DE VENDOR 9604020139 960329 PDR ADOCK 05000395 SCE&G P PDR DISTRIBUTION: CALC FILE [ORIGINAll DSE SG.C / SYSTEM ENGE SIM /DE FILE 20.6602 [ ATTACH. I ONLY, COPY]

ATTACHMENT I

. PAGE 2 OF 2 1 . REVISION 1 1

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' SOUTH CAROLINA ELECTRIC & GAS COMPANY PAGE 4

i REVISION

SUMMARY

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REV NO. SUMM ARY DESCRIPTION i

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THIS CALCULATION REQUIRES O REVIEW PER E-1 NO. 9 ERIFICATION PER DCP 2.05 RESULT 5 ARE NOTED BELOW.

3 REMARK 5 REMARK 5 REMARKS REMARK 5

.HE REVIEW OF THE CALCUL ATION INCLUDED EVALUATION AGAINST THE FOLLOWING QUESTIONS:

WERE INPUTS, INCLUDING CODES, STANDARDS, AND REGUL ATORY REQUIREMENTS, CORRECTLY SELECTED AND APPLIED 7 ARE ASSUMPTIONS REASONABLE AND ADEQUATELY IDENTIFIED?

i HAVE APPLICABLE CONSTRUCTION AND OPERATING EXPERIENCES BEEN CONSIDERED?

WAS AN APPROPRIATE CALCULATION METHOD USED?

15 THE OUTPUT RE ASONABLE COMPARED TO INPUT 5?

Gilbert / Commonwealth ,

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l _- memDrandum Q oiibert/ commonwealth tu j from: I. M. Sommerville subject: V.C. Summer Nuclear Station l W.O. 04-5440-722/31971 Wrap Cable Tray 3088 Thermal Analysis - Rev 1 October 20, 1985

! Ref: Memo to S.N. Maruvada from I. M. Sommerville, Cable Tray 3088 Thermal

! Analysis, 10/11/85.

l The thermal analysis for cable tray 3088 with the 1/2" of Thermo-Lag 330-1 has been re-done to determine the temperatures at a lower heat load.

The analysis is identical to that of the reference menc with the exception of the heat load.

l Results are given in figure 1 which show two curves of heat load vs peak cable temperature.

I The temperature is 151.1 F and 145.6 F for the 12" and 18" trays respectively for the heat load of 7.28 wattr,/ft.

It should be noted that the analyses were performed for a horizontal tray; the temperatures will be slightly lower if the trays are vertical.

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