ML20151L454

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Rept of Interview W/Gj Jarosz, Drafted on 940630
ML20151L454
Person / Time
Issue date: 06/30/1994
From: Paul R
NRC OFFICE OF INVESTIGATIONS (OI)
To:
Shared Package
ML20150F728 List:
References
FOIA-97-180 NUDOCS 9708070007
Download: ML20151L454 (7)
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REPORT OF INTERVIEW WITH -

GREGORY J. JAROSZ On June 28, 1994, Gregory J. JAROSZ, Product Manager, Transco Products, 55 East Jackson Blvd., Chicago, Illinois, was interview by NRC:01 Senior Investigator Richard C. Paul. JAROSZ was interviewed at NRC:RIII offices in Lisle, Illinois. JAROSZ had been previously interviewed on January 28, 1994, regarding this investigation.

JAROSZ was shown a Dow Corning memorandum addressed to Dow Corning Power Applicators, dated November 12, 1984, which discusses a slight modification to the formulation of the Dow Corning 3-6548 Silicone RTV foam. JAR 05Z said he worked for Transco in 1984, and Transco was a Dow Corning Power Applicator in November 1984, but he does not recall seeing this memorandum. JAROSZ said he searched through Transco's documents in preparation for the January 1994 NRC:01 interview and did not find this memorandum.

JAROSZ said he determined the dates of manufacture for the Dow Corning 3-6548 foam used in the 1985 fire penetration seal tests conducted for Northeast Utilities (Millstone 3). JAROSZ said the seals for the first two tests which failed were made up of Dow Corning foam manufactured before the effective date of the formula modification. The last three tests were conducted with foam made up of both pre and post formulation modification foam. One of these tests failed, but the other two passed. JAROSZ provided OI with a test matrix describing this.

INVESTIGATORS NOTE: Dow Corning 3-6548 silicone foam is a two part product which is mixed to form the penetration seals.

For the last three tests, the Part A was manufactured before the formulation modification, and the Part B was manufactured after the modification.

JAROSZ said he spoke with Dow Corning on what procedures Dow Corning follows when they change the formula on one of their products. JAROSZ said he was told by Dow Corning that once a formula is changed it is given a new product number / description. JAROSZ commented that based on the Dow Corning memorandum of November 1984, Dow Corning had not followed their procedures by failing to give the silicone foam a new product number / description.

'JAROSZ remarked that at Millstone 3, Transco recommended that a gypsum product be used for the penetration seals, but Stone & Webster (S&W), the Millstone 3 architect / engineer, insisted on the use of Dow Corning silicone foam. Accord-ing to JAROSZ, S&W had just finished the Shoreham nuclear plant and had used silicone foam penetration seals installed by SISCO. JAROSZ, who said he had previously worked for BISCO in the early 1970s, said BISCO used another name for the seal material which they installed, but, in fact, this material was Dow Corning 3-6548 silicone foam. JAROSZ commented that he felt S&W was trying to get rid of Transco on the seal contract at Millstone. JAROSZ said that a meeting was held between Northeast Utilities, S&W, and Transco at which time it was decided to have Transco install silicone foam seals. Transco then conducted the qualification tests which initially resulted in failures of 10 l

and 12 inch undammed silicone foam penetration seals. The foam did not I

qualify until a one inch damming board was added to the seal.

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F.XHIBIT Case No. 3-93-028R 1

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JAROSI said S&W was surprised by the failures of the Transco tests.

JAROSZ felt their surprise was because at Shoreham, BISCO was installing nine inch undammed seals.

JAROSZ commented that the performance of a penetration seal in.a fire test is dependent on the configuration being tested and the instal-lation procedures used to install the material. JAROSZ acknowledged that BISCO installers are the same craft personnel used by other seal applicators, including Transco, for the installation of silicone foam penetrations seals.

JAROSZ said he is unaware of the testing conducted by BISCO to qualify their nine inch penetration seal.

This Report of Interview was drafted on June 30, 1994.

Richard C. Paul Senior Investigator Office of Investigations l

Field Office, Region III i

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i Case No. 3-93-028R 2

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AUG 261985 enom t.w 5

M Elm 0!3 PONER COM.9?

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August 20. 1985 i ('

y To ANI Property Insured Utilities *Baving' BISCO Fire Stop Systems

Attention:I Mr. 5. R. Tietore Managern Nuclear Station Engineering l

j Cable and Pipe Penetration Fire Stop Systems l

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American Nuclear Insurers has continuously been a leading advocate of l

rated fire barriers to separate treks in nuclear facilities. Our i

standard Method of Fire Testa ef Cable end Pipe Fenetretici: irire stops i

was the premier standard test for fird stop systems and has served as

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the model for similar test methods world-wide. Since 1975. American l

Nuclear Insurers has reviewed and accepted for property insurance j.

purposes only, over 2,00 { ire stop systems tested by such methods.

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'Upon careful rev'iew of the documentation for these ever 200 tests, we recently found insufficient evidence to support' the ANI Acceptance of l

Testing form issued to 512C0 for test data, various (1976). By copy of i

the enclosed letter to 315C0. ANI is Withdrawing its acceptance of these j

systems.

j In an afiort to verify the prgper rating of this system, we conducted a 1

fire test of a sample of the subject system at an independent tert laboratory. ;The' sample withstood the fire exposure prescribed in Asnt i

a.<. E-119 for a duration of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 35 minutes. This fire stop systen j

presents a substantial barrier to the passage of fire between fire areas and except for some unanticipated fire loading hazard all existing i

systems are considered by ANI to be acceptable for property insurance l

purposes for the separation of areas. Rowever, this systen nav not be adequate where there is a strict requirenent for a 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> rated barrier for other than insurance purposes.

If it is deemed necessary to upgrade this fire stop systen for s 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> fire resistance rating, the following suggested methods esy be adequate:

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l EXHIBIT l 3..93-026 PAGE_/_._ OF d - PAGE(S)

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  • To ANI Prcperty Insured Utilities Havirg dis 00 Fire stop System g.%7,

August 20,'1985 j

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f8 I Ahly a ANI/PPCRP a 4'e darmdng board to the bottczn side of vertic

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(.tloor) seals and on both kides of horizontal (wall) seals.

OR Apply a protective a:eting over the foam that. has been fire tested in acccIdance with the ANI/HhERP fire test standard for penetration seals.

2 1

Wayne D. Bolnes Director

'thchnical Review Fire /All-Risk As F~=

t IUR John J. Carney Vice-President Property Dgineering y

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cc: Mr. C. L. Turner - Blinois Power Company, Decatur, Blinois Mr. H. R. Victor - Blinois Power Company, Clinton, Blinois Mr. R. Bhat - D11nois Power Company, Clinton, Blinois

.Mr. R. Kerestes - Elinois Power Company, Clinton, Blinois

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Mr. D. Korneman - Baldwin Associates, Clinton Power Station, Clinton, Illinois Mr. J. Buckles - M&M, Chicago, Blinois Mr. J. Robinson - M&M, Chicago, Blinois

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i August 20,1985 1

Mr. Clayton W. Brown,' President i

i 815C0 Construction Group Brand Industrial Services. Inc.

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1420 Renaissance Drive i

Park Ridge, Illinois 60068

Dear Mr. Brown:

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Re: BISCO's ANI/MAERP Acceptance of Testing Forms for Cable and Pipe Penetration Fire stop System. For Test Data Various (1976) hour ratings, of the above subject fire stop syste.ms, as i ANI is withdrawing its acceptance of these systems covering seals of.

nine 19) inch vianth of 815C0 SFu20 (1977) l 3-6548 RTV silicone foam without _a dammina boatsLleft in place. silicone f j

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Sincerely,-

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l Wayne D. Holmes

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Director - Technical Review

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  • r 9g lf FOR John J. Carney Vice-President 1

Property Engineering JJC/WDH:dm' cc: To AN1 Property Insured Utilities Having BISCO Fire Stop Systems and Brokers i

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g g g y MAERP MUTUAL ATOMIC ENERGY REINS INSURERS i

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s ACCEPTAllCE OF TESTitlG (for insurance purposes)

_ CABLE AND PIPE PEHETRAT10tl FIRE STOP S The following fire stop supplier or installe ha su y completed the i

FIRE STOP SUPPLIER OR INSTALLER:

on Fire Stops".

BISCO TESTING ORGANIZATI0ft:

i PARK RIDGE, ILLINDIS PORTLAND CEMENT ASSOCIATION i

Various (19761 SKOKIE, ILLINOIS 1

TEST DATE:

GEHERAL DATA i HOUR RAIING: 3 i.

CAN.t>EHETRAT!0ttsE-%

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i Max. Penetration Size P!pE PEHETRATIOMS S

2 ' X 3 ' 6

Accepted for Floor 6"

YES Accepted for Wall..

YES' YES

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YES

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BISCOSF-20(1977) Silicone Haterial Foam or Dort Corning 3-6548 RTV Same as bible Penetrations Silicone Foam plus BISCO SF-70 SF150L SilJt Lead Haterial Density: 17-23 lbs./cu. ft.

. Fire Stop Thickness.

9 inches minimum 1

9 inches minimum - SF-20 I

12 inches minimum - SF-150L F" Hat

  • rial CFR 2300 Loose Alumina Silica

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Fiber - Left. in Place. (Non-CFR 2300 Loose Alumina S Combustibie Forming Used f. Rergved) Co-bustit,le F i

SPECIAL LlHITATIO:is Tray Types: 'Open Ladder or Solid Bottom ng,"Used ;

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% Cable Loading:_ 4%

Tray.,50s Cable Con'.truction:~ tio Limitations (Hote:

5 Loading = Total Cross-se,c_tional area of cable /CroConduit Max. Co 67

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ss-sectional area of tr.Wcona Nuclear Insurers or IWtual At.nmic Energy'Reinsuranc re to be submitted te *-

Acceptance nr it.e ont wsting 15 out/ io-

.a.u'wa cr -. ;; :'d u u to fire protection of tne ornoare;,* :M i:. heleu on inscrmation pfcVid d e.

This form is valid for two (2) years from the date iss k/

~ Rev. 4/81 __. nnye ued bnicss withdrawr. prior thereto, 22, 1983 Date issued g(

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MUTUAL ATOMIC ENERGY RE q,

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ACCEPTANCE OF TESTitlG (for insurance purposes)

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The following fire stop supplier or.g,B,1.E_ AND PIP 4

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cessfully completed the FIRE STOP SUPPLIER OR INSTALLER:

e and Pipe Penetration Fire Stops".

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. PARK RIDGE.' ILLIN0IS TESTING ORGANIZATION:

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PORTLAND CEMENT ASSOCIAT 4

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TEST DATE:

i Various (1976) 4 GENERAL DATA I HOUR RATING:

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Max. Penetration Size CABLE PENETRATIONS

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PIPE PENETRATIOi-

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Accepted for Floor.

  • N/A YES Accepted for Wall

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N/A YES J

Haterial '

BI5C0~57-20lI9777'ST15 cone N/A i

Foam or Dow Corning 3-6548 RTV Stitcone Foam t

Density: 17-23 lbs./cu..ft.

N/A

.i Fire Stop Thickness 9 Inch E H1n'imum

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Fom Material CFR"2300 L'oose Alumina Silica

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Foming Used N/A 4

i Tray Types:

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Doe 5 Cable Loading:n ladder or Solid Bottfrn ' '

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405

%' Loading 7 Tray.

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Total Cross-sectional arca ~of. cable / Cross-s y

j Hucicar Insurers or Hutual Atomic Enctgy;R thiCom nal arca of I'3""/ cond

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a urance Pool prior to actus)ations Acceptan

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This fem is valid for two (2) years frca the d t e ;.r:.,- -, ;,,.. ', '

a e issued unicss withdrawn prior th 4

j s-Aev. 4/81

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November 22, 1983 s

Date issued GM - l 9 1

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