ML20082B310

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Rev 2 to Technical Specification for Electrical Raceway Design & Installation of Exposure Fire Barriers & Fire Stops
ML20082B310
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 09/08/1983
From:
PENNSYLVANIA POWER & LIGHT CO.
To:
Shared Package
ML20079F008 List:
References
FOIA-94-137 F1000, NUDOCS 9504050096
Download: ML20082B310 (11)
v • d • e


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SPECIFICnfl0N NO. n nne sartti attatte Q etutt testiff G FILE NO. 538 - n000 nos esitift O PAGE i H 0F ptslu traffittfin it:0 #83 ,

ttcwntcAL SPECIFICAfl0N 1

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21.tCTRICAL RACtWAY DiffCN AND INSTATt ATION b l n, .. ,,.. . .., .. - ,,.. m oe i

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!!9AQUINANNA litAs (LECTAll '4fAfl0N, UNITS 1 AND 2 I -

PENNSTLVANIA P0f!8. & Ll0NT COMPANY l -

ALLINtHN, PtNN8YLVANI A

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  • f I r. C .J. E : , 2 .'. ' , RECEIVED 2 i 1 i SEP 211983 I ,- - ...,) - MUCLf.AR RELIT 4,

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l 7.agg l 1.0 SCOPE ......................................................... 3 1.1 DE8CRIPTION .............................................. 3 i.: C a t u r. ................................................. 3 l l

l 1.3 WORK INCLUDED ............................................ 3

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1.4 WORK NOT INCLUDED ... 4................................... 3 2.0 CENERAL INFORMATION ........................................... 3 2.1 CENERAL REQUIREMENT 8 ..................................... 3 2.2 DEFINITION .............................................. 3 i

2.*J REVISION INDICATTONS ..................................... 4

3.0 REFERENCES

.................................................... 4 4.0 TECHNICAL REQUIREMENTS ........................................ 4 4.1 FIM SHAK DE81CN ........................................ 4 4.2 FIRE BREAK CONSTRUCTION .................................. 4

4.3 EXF08UM FIRE BARRIER DESIGN ............................. 5 4

4.4 ERF08UM FIRE SAFRIER CONSTRUCTION (TYFICAL F0k INSULATION. BLANKET l ONLY) ..........'.......................................... 5 4.5 BLANKET IPSULATION/SARRIER BOARD.

SANDING, TAFE AND MASTIC MATERIALS ....................... 7 4.6 EKF08UM FIM BARRIER CONSTRUCTION i

(TYFICAL FOR T81, INC. MAT RIAL) ......................... 8 4.7 T81, INC. MATERIAL 8 ...................................... 9 5.0 TE871NC AND IN8FECT10N REQUIREMENTS .......................... 10 j 6.0 PREFARATION FOR DELIVERY ..................................... 10 6.1 DEFINITION .......,....................................... 10 7.0 QUALITY ASSURANCE FROGRAM ............................... .... 10 l

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1.0 8 COPE 1.1 DESCR1FTION

j. This specification describes the requirements for race l

Unit 2 in accordance with the performance, design and test criteria requirements described herein.

1.2 CENERAL It is not the intent to specify herein all details of de been designed and fabricated in asepliance with this specification a d all documents referred to herein as well as in accordance with good i

' engineering practies.

i' 1.3 WRK INCLUDED Furnish all the necessary insulating materials, installation for det. the ails, too equipment and services required for insulation of electrical raceways following:

1.3.1 Fire Breaks l 1.3.2 Raposure fire Barriers l

1.3.3 FFAL shall install all materials specified.

f 1.4 WORK NOT INCLUDED l

1 1.4.1 Uniosains and st'orage of all materials specified.

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2.0 CENERAL INFORMATION 2.1 CENLRAL REQUIREMENTS f

This specification specifies the technical requirem

outlined in the NRC Branch Technical Fosition 9.5.1 Appendix P) A, and th y

American Standards.

Nuclest Insurers /Mutus1 Atomic Energy R Fire Stops and Exposure Fire Barriers.

i 2.2 DEFINITION i

l FFAL Engineering-RFI Civil Croup Supervisor or his designee.

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F-1000 Revision 2 Page 4 2.3 REVISION INDICATIONS The nargins of this specification are marked with a vertical line and revision number to indicate where changes have been made. This is done for information only and FP&L assumes nc liability whatsoever for inaccuracies in these notations. Bidders, Conrrectors and other Non-NPE organisations are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notation and relationship of the last previous issue.

3.0 REFERENCES

The work to be performed under this specification shall conform to the opp 11 cable provisions of the latest revisions of the following documents. If a conflict exists between any of these documents and this specification, the specification shall govern.

a. NRC Branch Technical Position 9.5.1 Appendix A I
b. American Nuclear Insurers / Mutual Atomic Energy Reinsurance Pool (AN1/MAERP) Standards
c. susquehanna Fire Protection Review Report
d. Nuclear Department Isotruction - QA-8.2.3, Quality Assurance Requirassets for Fira Frotection and Related Systems,
e. Operational Policy Statement (0F8) - 1 4.0 TECHNICAL REQUIREMINT8 4.1 FIRE AREAK DESIGN ,

4.1.1 The purpose of Fire Breaks is to stop propagation of fire in vertical and horisontal cable trays.

4.1.2 Fire Breaks shall be installed in enclosed vertical cable trays every 15 feet and in enclosed horisontal trays every 20 feet within the same fire sone. Fire barrier penetration seals provide a fire break where they are r

installed.

4.1.3 Fire treaks shall be made from an Insulation Blanket and mastic coating, or FF4L Ragineering approved equal, see Section 3.5.

4.2 FIRE BREAK CONSTRUCTIDW (Typical For Insulation Blanket Material only) i 4.2.1 Fire treako shall completely encapsulate the cable tray for six to eight inches (nomina;. Min. Dimension).

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t F-1000 Revision 2 Page 5 4.2.2 If the cable tray is not completely filled with cables. Insulation Blanket, the sees width as the cable tray shall be inserted over the cables in suf ficient layers to bring the outer surface of the Insulation BlanketThe even with the top of the tray sides and completely fill all void spaces. The g insulation material is to be sandwiched between the cables and the cover.

covers are secured per drawing I-49.

4.2.3 The open ends of the Fire Break shall be packed with Bulk Insulation Fiber and sprayed with Mastic Coating to a 1/2 inch wet thickness so as to completely seal the cable tray / cable / Insulation Blanket interface.

4.3 EXPOSURE FIRE BARRIER DESIGN 4.3.1 Exposure Fire Barriers shall be installed as necessary on electrical cable trays, conduits and junction / terminal boxes at locations specified per Susquehanna Fire Protection Review Report Appendix "A".

4.3.2 Exposure Fire Barriers shall be made by encasing the cable trays. -4 ccaduits and junction /tetininal boxes in one or three hour rated barrier systas.

4.3.3 The purpsee of Exposure Fire Sarriers is to prevent damage, during serving one division of complete angulfmant fire, to electrical cabt . nt when redundant safe shutdown equipment required for safe shutdown of th.

divisions occupy the same fire area.

4.3.4 The Exposure Fire Barrier construction system shall also encase all raceway support steel within 14 inches of the protected raceway.

4.4 EXF08URE FIRE SARRIER CONSTRUCTION (Typical For Insulation Blanket Material only) 4.4.1 Exposure Fire Barifters shall cospletely encapsulate the indicated cable tray or conduit for the satire length specified.

4.4.2 If the cable tray is not covered and is not completely filled with cables, insulation Blanket, the same width as the cable tray, shall be inserted ovat the cables in sufficient layers to bring the outer surface of the Insulation Blanket even with the top of the tray sides.

4.4.3 The first (interior) layer of the Insulation Blanket shall wrap completely around the perimeter of the cable tray with the ends of the blanket overlapping a minimum of

  • inches. Adjacent blankets shall be placed tightly This together so as to prever any gaps in the butt joints between blankets.

layer shall be held in . . ace by High Forformance Filament Tape spaced not more than 14 inches. apart and not less than 4 inches from butt joints.

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Fage 6 4.4.4 The second (exterior) layer of Insulation Blanket shall vrap completely around the perimeter of the interior layer and must also have a minimum 3 inch overlap. The overlap of the exterior layer shall be offset from the overlap of the interior layer but still remain on the top of the tray. The exterior layer blankets shall be installed such that the butt joints between adjaesnt exterior blankets are offset at least 12 inches from the butt jointe between interior blankets.

4.4.5 The arterior blankets shall be secured in place by stainless steel straps installed not more than 14 inches apart and not less than 4 inches from exterior butt joints. The tensioning of the straps shall be sufficient to hold the blanket snugly in place without causing any sufficient cutting of, or damage to, the blanket material.

4.4.6 A protective outer wrap of Aluminated Zetex is to be secured independently of the Kaowool blanket with Polyken 237 tape. This outer wrap

- shall be installed after the stainless steel straps. The "aetex" shall have a minimus 3 inch overlap. The overlaps in the outer wrap shall be offset from the overlaps in the previous layer but still remain on top of the tray. A single layer of Polyken 237 tape will be made over all joints. (The above is typical for all barriers constructed with Insulation Blanket Material Kaowool.)

4.4.7 Where adjoining cable tray or conduit or tray support members attached to, or come into contact with, the tray to be protected, the attaching or contacting member shall also be wrapped with two layers of Insulation Blanket as necessary to ensure complete coverage of the protected tray. No gaps or openings shall be allowed.

4.4.8 Conduits mounted on exposed unistrut shall be insulated in the same manner as cable trays, except that no filler blanket is required.

4.4.9 Conduits mounted on embedded unistrut, flush to a wall, shall be covered with two layers of Insulation 31anket. The blanket shall extend a minimum of two inches onto the surface of the wall. The edges of the blanket shall be secured to the wall by steel strips and concrete expansien anchors or an equivalent fastening asthod approved by the Nuclear Plant Engineering (NPE)

Civil Group supervisor or his designee.

4.4.10 Exposed non-suppcrted cable transitions (air-lined) from conduit to tray or from tray to tray shall be wrapped in two layers of Blanket. Each layer shall wrap around the cables with an and overlap of not less than 3 inches. The blankets shall be secured by tying with Woven Tape at 14 inch maximum intervals.

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At locations where the protected tray or conduit penetrates a fire 4.4.11 barrier in a ceiling, floor or well, both the interior a The juncture will then be sealed with mastic snus against Thethe mastic firestop.

will be sprayed or troweled completely around the coating.

Insulation Blanket te not less than 1/4 inch thickness, and shall extend less than 3 inches onto the esterior of the blanket and the fire barrier and esiling, floor or wall.

4.5 g!ANKET INdVLATION/SARRIER 30ARD, SAND!NC. TAFE AND HAS r

(Fire Breaks separation garriers and Raposuro garriers)

Insulation /glanket consisting r,f lengths width and in'.orlaced ceramicBabcock are required. /slass fibers. an d

4.5.1 one inch thick, 3 lb. per eu. f t.,

Wilcox, Kaowool or FFAL Engineering approved aqual.

4.5.2 Formed barrier board consistf.ng of aeramic fibers and bindera, PP&L thickness and sise as required, Babeeck and WAlcos, Esowool M loard or Engineering approved equal. (Junction /Termind box covers.)

g 4.5.3 Frotective ester wrap joint tape, Polyken 237, 2" s,ide,d 2equal. mils 5 thick, afg. t,y tenda11 Corp., Felyken Div. of FF&L Engineering approve g

4.5.4 Alustnised protective outer wrap consisting of glass cloth. Babcoc

! and Wilcox, setex Style 300, or FFAL Engineering aproved equal.

g 4.5.5 High Forformance Filament Tape for securing Insulation b Blanket o electrical cable tray and conduit shall be 1 inch wide 3M company Tape 89 or FFAL Engineering approved equal.

4.5.6 Woven Tape for secu, ring issuistion 31anket in electrical cable cray shall ba a refactory silica product, 1 inchb wide by 0 WT65-1 or FF6L Engineering approved.

4.5.7 Mastic Coating for fire protection applications shall be Intumastic j 285, manufactured by Carboline Fire Froofing Producte Division, or FP l Engineering approved equal.

Calvanised steel strips and concrete expansion anchors, or his 4.5.3 equivalent fastenies method approved by the NFE Civil Group Superv designee, for attached Insulation Blanket to walls.

4.5.9 straps for securing taeutetton 31anket m electrical cable tray by .020 inch thics Type 504 stainless steel.

conduit shd1 be 3/4 inch t

  • 4.5.10 Bolts, mots, washers and other fasteners shall be electro-sa or cadstus plated.

4.6 EXF03URE FIRE &ARRIER CONSTRUCTION (Typical For TSI i

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j 4.6.1 Approved Equal" barrier system, subliming compound. Thermo-Lag 330-1, water based spray coating, afg. by TSI. Inc. consisting of Thervo-Lag 351 Primer, er %ermo-Las Stress Skin Type 330-69 and Thermo-Las 351 Primer.

plus Thermoclag 330-1 Sub11 ming Compound, for use on raceway, junction / terminal bones and support steel.

l 4.6.2 The Thermo-Las Stress Skin Type 330-69 shall be installed as i

follows:

l a) Secure with the raceway or support steel.

b) The stress skin primer intact.

j c) Free of foreign substances prior to application of Tharmo-Lag 330-1 Subliming Compound, d) Completely encasing the raceway or support steel.

! 4.6.3 or croweling ThetoThermo-Lag the Stress330-1 Skin. Subliming Compound shall be applied by spraying 4.6.4 As an option the assembly may be prefabricated. The strese skin should be suitably cut, shaped and formed, and the Thermo-Lag 330-1 applied.

l Flanges shall be formed (coated or uncoated) in the prefabrication panels to

{ allow assembly by sta)1es or other suitable fasteners. After installation on i

the raceway, the fisages, fasteners, edges joints, etc. shall be coated with &

Thers>-Las 330-1 by spraying or troveling, sa that in all cases the distanco l between i thickness.the interior and esterior of the Thenw-Las barrier is the specified I

1 4.6.5 Wen a one bour ra' ting is specified, the final dry film thickness of

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' Thermo-Lag 330-1 material shall be one-half inch (1/i in.) minimum and three-fourths inch (3/4 in.) maximus. The finish shall be free of texture irregularities (i.e. blisters, spalling, fissures, separations, sec.).

4.6.6 Wen a three (3) hour rating it specified, the total dry film I thickness of Thermo-Lag 330-1 material shall be one inch (1 in.). The tolerance is -0.00 +.250 inches.

The 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> system is installed with an inner and outer stress skin with one inch of Thermo-Lag 330-1 in between. The assembly may be prefabricated, I

sprayed in place and/or sa additional 1/2 inch of Thermo-Lag 330-1 with stress skin m.sy be applied over an esisting (1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> rated) 1/2 in. assembly.

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F-1000 Revision 2 Page 9 4.6.7 dameged and loose material removed backe all or scrapper is acceptable. to sound ad as in plaster repair. erial. A knife

- using a wire brush. All foreign matter should be removed from ,

achieve the required Thermo4ag dry film thickness. 330-1 sub11 ming Compound shall be added to )

4.6.8 Subliming Compound shall be 40*F or higher prior to ap 330 1 Subliming Compound. a on of Thermo-Lag 4.6.9 80 or less shall be obtained usinPrior to applying additional of coats o PP&L Engineering approved equal. g a Delmhorst Hoisture Meter (Model DP) or 4.6.40 do not have automatic fire protection, final pass: a the following c sh ll e added af ter the a)

Additional surface. thermo4ag material, if necessary, etoa produc wet 3

i b)

Apply T81, Inc. Fiberglass Armoring to the wet surface .

. c)

Flatten out any wrinkles and embed the fiberglass securely .

d)

Apply sufficient material to cover the embedded n. fiberglae \

e) l Remove all angs, ' drips or other surface imperfections f)

The completed installation should be within th analysed by Nucisar Plant gagineering. a e 1

4.7 TSI INC. HAfgRIAL3 4.7.1 conformance by the manufacturer thatonthe e of material is a the purchase order, or bear the Underwriter Laboratories .. ae. (U L ) l b l 4.7.2 Thermo-Las 330-69 strees skin with Thermo-Lag 351 Frimer 4.7.3 Thermo4ag 351 Frimer.

4.7.4 4

Thermo-Lag 330-1 water based subliming coating compound 4.7.5 .

Fibergissa Armoring.

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i F-1000 Revision 2 Page 10 4.8 DOCUMENTATION i

i All records generated as a result of this specific a ti the appropriate System File. Quality Assurance Records n File a d 88on shall be included 4

ES Records Management i

5.0 i TESTING AND INSPECTION REQUIRDGNTS i 5.1 accordance with the specification. Quality Control shall check that

- 5.2 installed in accordance with this sQuality control shall check that a arriers are i

completely encompasses the raceway.pecification, and that each blanket layer 5.3 j

installed in accordance with this specification. arriers are Quality co l

5.4 type The following installations additional requirement shall e be check d f use.) (Commercial quality measuring ordevices the TSI Inc.

eare for acceptabl a)

Proper installation of the Thermo-Lag Stress Skin or 3!1 P t

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rimer.

D erserLas 330-1 is to be applied. Proper which temperature c)

Proper Dry Film Thickness prior to recoat. ,

d)

Proper dryness between coats.

e)

Inspection for surface blemishes in final surface 4

f) Proper methods for repsir work.

6.0 PREPARATION FOR DELIVERT This section is not applicable to this specificatio n.

7.0 1 QUALITY ASSURANCE F20GRAN 7.1 of this specification. Nuclear Department tastruction - QA-8.2.3 shall appl y to the activities 7.2 Industry and are coaunercially available. Materials que to the Nucleat used for this 7.3 Program Requirements shall .be Statement - 1 as required the Quality Assurance by theFor FP&

scope of Operational Policy

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7.4 For use enternal to FF6L. the Quality Assurance Program Requirements shall be as required is the purchase doceents or contracts and specifications for the material / services.

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