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PACIFIC GAS AND ELECTRIC COMPANY 4
SAN FRANCISCO, CALIFORNIA f
Department of Engineering ACCOUNTING DATA SPECIFICATION NO. 2552 s
REVISION No. 1 GM169972 I
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Locatien and/or Item 40 SPECIFICATION FOR FURNISHING AND INSTALLING SILICONE FOAM PENETRATION SEALS FOR UNIT 2 DIABLO CANYON SITE Comprising Specific Cenditions General Conditions Contract Form Proposal Form and Pricing Schedule Insurance Questionnaire
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l BIDDER SIGN HERE TC INDICATE APPROVEDBYp/hj(,jLyfC l
l IEIS HAS BEEN US53 IN PREPARING p
PROPOSAL J. J. McCann/ATL (EDC/AA i
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Firm R. V. Bettinger/EPW ( VJG/ S)
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jy' tU6 Date D. V. Eel (AGW) (R ) ( HJ > [G,T)
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n DATE June 28, 1977
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8708200106 870814 jh PDR FOIA M
DEVINE84-743 PDR a
Sp;cificatica Ns. 2552 Revision No. 1 l
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SPECIFICATION REVISION INDEX I
Revision No.
Dat-Cover Sheet 1
June 28, 1977 Pagp No. 2 1 June 28, 1977 l
Page No. 2-3 1
June 28, 1977 Page No. 2-4 1
June 20, 1977 Figure No. 3 I
June 28, 1977 Drawing No.- 054177-6 June 28,19 77 I
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3553 Revision No. 1
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Furnishing and Installation.
Requirements.
'2-2 3-M&TERIALS, INSTALLATION AND RECORDS 3.1-General
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3.1.1 Bilicone foam materials shall be formulated using Contractor's procedures, approved by Constructor, for mixing and preparing sili-cone foam. ' For ~each batch of foam material prepared, a batch sample of the foam material shall be taken.
Each of these samples shall be identified as to batch number, date, and application' location.
Each sample shall'be allowed to stand for the prescribed setup time of the foam material plus two minutes. A cross section of the sampic shall be compared with a control sample which has'been correctly prepared.
A record of the results of these comparisons.shall be furnished to Constructor.
The records shall show the names of the material, its manufacturer, type, and identification number.
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3.1.2 Silicone foam material (except lead fapregnated) shall remain flexible to effect sealing around cables wheeh may be added subse-quent to the initial foam application.
3.1.3 Contractor shal; furnish procedures for repair of penetration seals and fire stops.
procedures shall include instructions for addition of conduits or conductors to sealed electrical openings and fire stops, and pipes or tubing to mechanical openings.
3.2 Application
Silicene foam sealant. material shall be applied' using Contractor's procedures approved by Constructor. All seals shall be i
performed tn a neat and workmanship manner.
Excess material shall be trimmed and cleaned as. the application' progresses.
Silicone foam sealant may. extend beyond floor or wall surfaces, if found by Constructor to be 4
required.
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3.2.1 Installation
Thickness ( or depth) of silicone foam seal shall be a noninal one foot (plus or minus one inch) except as fc11cvs:
3.2.1.1 Thickness or depth need not be greater than that of the wall or floor penetrated.
3.2.1.2 I
3.2.1.3 Silicone foam fire stops shall be provided at 4-foot intervals on vertical cable trays and at 10-foot intervals on l
horizontal cable trays, and within 5 feet of cable tray cross-ings, either above or below.
Conduits shall be provided with silicone fokm fire stops at nearest accessible point to pene-j i
tration of wall or floor and before fire controlled area, or equipment.
j 2552 Revision No. 1 Furnishing and Installation 1
Requirements 2-3 3.2.1.4 The cables within each opening to be sealed shall be spread to allow the silicone foam sealant to flow between all interstices to accomplish the sealing.
3.2.1.5 If backing materials are required for the silicone foam sealant, they shall.be of noncombustible nature and may be.left-in place following application if approved by Constructor.
j 3.2.1.6
- When a lesser thickness (a =4n4=um of 9 inches) can i
be qualified under ASTM E119-76, and approved by NEL-PIA and con-structor. The density of the foam applied shall match the density as stated.in the fire. test data.
3.2.1.7
- Where silicone-lead foam 150 pounds per cubic foot is 1
used, it shall be applied to the full depth of wall or floor. A lubricant shall be added to the surface of piping in contact with silicone-lead foam to provide a free sliding surface between the foam and the pipe.
The maximum electrical conduit internal seal depth shall not exceed 13' inches.
3.2.1.8. **Where silicone foam 20 pounds per cubic foot is used, it may be applied to the full depth of wall or floor at contrac-1 tor's option and with constructor's approval. The average depth of walls is 2 feet 0 inches and the average floor slab depth is 1 foot 0 inches. The. volumes shown for the 20 pounds per cubic foot and 150 pounds per cubic foot silicone foam on Drawing No.
054177-6.are based on applying foam to full depth of wall'or
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. floor. The maximum electrical conduit internal seal depth shall not exceed 13 inches.
3.3 Materials
3.3.1
- Silicone foam sealants shall be flexible silicone rubber, Dow i
Co ning Q3-6548 or approved equal, approved by Constructor, foamed-in-place,15 to 29 pounds per cubic foot density.
Components and typi-l1 cal properties of the silicone foam shall conform, as a minimum, with this Specification.
3.3.2 Where radiation chielding is required, silicone foam sealant shall be silicone-lead foam, foamed-in-place, 150 ( +30,-0) pounds per cubic foot density.
Components and properties of the silicone foam'shall conform, as a minimum, with this Specification.
t 3.4 Documentation 3.4.1 Materici Documentation:
Fire test certification (see 2.2, j
above) shall be supplied to PG&E by Contractor.
It shall cover
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materials actually used, l
3.4.2 Each penetration sealed shall be uniquely identified and documented sad correlated with the test sample results.
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uma 2552 J
Revision No. 1 Furnishing and Installation Requirements 2-4 i
3.5 Referenced Standards US Nuclear Regulatory Commission 1
Washington D.C.
20555
'Attua. Director, Office of Standards Development American Society for Testing and Materials 1916 Race Street Philadelphia, Penn 19103 Nuclear Mutual Limited Cedar Avenue, Box 1262 Hamilton 5, Bermuda Atomic Energy Commission (Nuclear Regulatory Commission)
Reg. Guide No. 1.36, Non-metallic Insulation for Austenitic Stainless Steel, February 23, 1973 ASTM E119-76 Fire Tests of Duilding Construction and Materials.
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'CD/yDV/7 JUMBODUCT SEQUENCE OF OPERATION:
ME THOD No. I (CERAMIC FIBER)
I. PA Cg
[ERAMIC FtBER, 8 $W KAOWOOL (BULK A TYPL) 02 equal ARouND CONDUCTORS.
- 2. SEAL COMDutT OR JUMBODUCT W/rH FLAMCMASTic 7/A CR ENGR. APPROVED EquwateNT.
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ME THOD NO,2 (SILICONE 208BER)
I. ' INSTALL ST0hi, CERAMIC RBER, OR EQUIVALENT
- 2. SE AL coyputT CR JUH8000&T wtTH Stuc6Mr /?TV Fo4M SUBBER, POW CORNINCr G3'6548 70 IbP Of* QPEN/NG,
- 3. MAY 'l EAVE SIL/COME FOAff R/SE, if /Y DGES JVOr j
/NTERFERE VV/7W EQV/PMENT* ABOVE.
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Specification 2552' hvision 1 I
i Notes:
(1) SF - 150 means Silicone Foam, density 150 lb./ft.3 l
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(2) SF - 20 means Silicone Foam, density 20 lb./ft.
+ g (3) Furnishing'and installing boots is not I
included in the work to be done under Specification No. 2552 i
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