ML19262C003
| ML19262C003 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 01/16/1980 |
| From: | Pilant J NEBRASKA PUBLIC POWER DISTRICT |
| To: | Harold Denton, Ippolito T Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001220407 | |
| Download: ML19262C003 (33) | |
Text
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GENERAL OFFICE
} ' * * * * '
' Nebraska Public Power District ' '" n!'EA'SU"? SUE *1
. .m January 16, 1980 Director, Nuclear Reactor Regulation Attention: Mr. Thomas A. Ippolito, Chief Operating Reactors Branch No. 3 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Fire Protection Modifications Cooper Nuclear Station NRC Docket No. 50-298, DPR-46
Dear Mr. Ippolito:
The Fire Protection Safety Evaluation Report (SER) for Cooper Nuclear Station, issued May 23, 1979, requested that Nebraska Public Power District provide design information relating to specific fire protection modifications. In response to this request, enclosed is the summary description of the following design changes:
Minor Design Change No. Subject 79-015 Rev.1 Independent fire Protection Water Supplies for Manual and Automatic Suppression Systems in the Reactor and Control Buildings.79-032 Wet-Pipe Sprinkler Protection for the Electrical Trays in the Northeast Corner of the Reactor Building, Elevation 903'6".
Since the complete design change packages contain detailed information not included in the enclosed summaries, and since this information is of special interest only to the actual staff reviewers, two copies of the complete design change packages are being forwarded to Mr. Robert T. Dodds, Nuclear Regulatory Commission, Region V. The complete design change packages are also available at Cooper Nuclear Station for review.
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004 8 122o /
f M85 233
Mr. Thomas A. Ippolito, Chief January 16, 1980 Page Two The Staff's prompt notification of any comments, or lack of comments, regarding the enclosed modifications will be most helpful in completing Minor Design Change No.79-032 as soon as possible.
The SER implementation date for Minor Design Change No.79-032 (corresponds to SER Section 3.0, Item 3.8) has expired. As discussed previously with the staff, the delay in implementation of this design change has been due to engineering delays, especially because of extensive seismic hanger calculations for this design change and due to the heavy engineering workload for seismic analysts on other safety-related plant projects (i . e . , IE Bulletins 79-02 and 79-14).
Pursuant to SER Section 3, Item 3.16, also enclosed is CNS cable tray and conduit fire barrier penetration seals documentation. As discussed with the staff, the SER implementation date for the CNS penetration barriers documentation has also expired. The delay in the documentation of the CNS penetration seals has been due to delays in receiving current fire endurance test data from manufacturers of the materials used in CNS penetration seals.
This letter along with the three enclosures complete all District SER commitments for submittals to the NRC. If you have any questions or require additional information, please do not hesitate to contact me.
Sincerely yours, Jay M. Pilant Director of Licensing and Quality Assurance JMP/ra:sn16/K1P2 Enclosure cc: Mr. Robert T. Dodds U.S. Nuclear Regulatory Commission, Region V Office of Inspection and Enforcement 1990 California Boulevard, Suite 202 Walnut Creek, California 94596 1785 214
8 9
SUMMARY
OF MDC 79-32 WET-PIPE SPRINKLER PROTECTION FOR THE EI.ECTRICAL TRAYS IN THE NORTHEAST CORNER OF THE REACTOR BUILDING, ELEV. 903'-6" I. DESCRIPTION This MDC is initiated to provide automatic wet pipe sprinkler protection for the electrical trays in the northeast corner of the Reactor Building floor, elev. 903'-6", bounded by column lines J to.K and 10.5 to 12.7. The sprinkler system header will be connected to existing fire protection header 1-FP-114-6" upstream of shut-off valve 6"V131F-70. Currently, no fire protection system is installed in this area.
II. JUSTIFICATION The northeast corner of the Reactor Building, elev. 903'-6", contains Class I, Division 1 and Class I, Division 2 electrical circuits and safety-related redundant electrical equipment. If a fire were to occur in this area, it could cause an unacceptable loss to both Class I, Dtvision 1 and Class I, Division 2 electrical cables and the safety-related redundant electrical equipment. Therefore, the northeast corner of the Reactor Building, elev. 903'-6", should be protected by an automatic wet pipe sprinkler system. This condition was reported to the Nuclear Regulatory Commission (NRC) on page F-1 of the " Fire Protection Review to Appendix A to Branch Technical Position APCSB 9.5-1" which was transmitted on December 17, 1976. On October 10 through 13, 1978, an NRC staff fire protection review team visited the Cooper Nuclear Station (CNS) and recommended the installation of an automatic suppression system. On December 11, 1978, Nebraska Public Power District (NPPD) committed to the NRC request. Calculation sheets for pipe support design analysis, hydraulic analysis, and the number of wet pipe sprinkler heads are included in the complete design package.
I78123f
SUMMARY
OF MDC 79-15, REV.1 INDEPENDENT FIRE PROTECTION WATER SUPPLIES FOR MANUAL AND AUTOMATIC SUPPRESSION SYSTEMS IN THE REACTOR AND CONTROL BUILDINGS I. DESCRIPTION This MDC is initiated to provide independence between the fire protection water supplies for the existing automatic sprinkler systems and the manual systems in the following buildings:
A. Reactor Building
- 1. MG set dry preaction sprinkler system No. 6, elevation 976'0"
- 2. MG set oil pumps and motors sprinkler system No. 4, elevation 958'3".
- 3. Standby gas treatment area carbon bed fire protection system Nos. 22 and 23.
B. Control Building
- 1. Electrical cable area dry preaction sprinkler system No. 5.
Currently, no independence between fire protection water supplies is installed in any of the above listed automatic sprinkler systems.
Two additional manual stations are included in this MDC to provide independently supplied backup systems to the automatic fire protection systems which will be installed at the 903'6" elevation in the northeast corner of the Reactor Building (MDC 79-32) and in the Cable Expansion Room (MDC 79-12).
II. JUSTIFICATION The Reactor and Control Buildings contain safety-related and redundant equipment and electrical cables. A break or malfunction in the existing single fire protection water supply to the Reactor and Control Buildings could result in a loss of both the automatic sprinkler systems and manual systems in each area. The installation of a new independent water supply will prev .at the simultaneous loss of both the automatic and manual fire p ro te e'. ton systems in these areas due to a single pipe, valve, or instrument failur- On October 10 through 13, 1978 an NRC staff fire protection review tearn visited Cooper Nuclear Station. The Safety Evaluation Report dated May 3, 1979 recommended the installation of independent fire protection supplies to the manual and automatic Reactor and Control Buildings' systems. Calculation sheets for pipe support design analysis are included in the complete design packi;e.
III. SAFETY ANALYSIS The modifications outlined in this MDC will not in any way' degrade the' safety of Cooper Nuclear Station with respect to personnel, equipment, or
~
nuclear safety. The installation of new independent water supply lines is initiated to increase the reliability of the existing, fire protection, rystems in the Reactor Building and Control Building. .
1785 236
s, S.
COOPER NUCLEAR STATION CABLE TRAY AND CONDUIT FIRE BARRIER PENETRATION SEALS The following documentation is submitted to substantiate the adequacy of the Cooper Nuclear Station cable tray and conduit fire barrier penetration seals, per the CNS commitment as stated in the SER Item 3.16.
Descriptions of CNS Fire Barrier Penetration Seals Attached are Drawings 1, 2 and 3 (pages 6, 7 and 8) which illustrate CNS cable tray and conduit fire barrier penetration seals and are representative of the worst case configurations of such penetrations. All other cable tray and conduit penetrations utilize equal or greater thickness of cellular concrete, Babcock and Wilcox "Kaowool", Flamemastic 71A, or Dow Corning 3-6548 RTV silicone foam.
Drawing No. 1 illustrates cable tray and conduit fire barrier seals through Control Building walls, specifically the following three wall penetrations:
- South wall of the Cable Spreading Room (918' EL) between column lines H.7 and J.8. The opposite side of this penetration is the north wall of the Cable Expansion Room (918' EL of Controlled Corridor).
- South wall of the Cable Spreading Room (918' EL) between column lines G and G.7. The opposite side of this penetration is the north wall of the T-G Building Electrical Cable Chase, east end (932' EL).
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- East wall of the Cable Spreading Room (918' EL) between column lines 15.4 and 16.2. The opposite side of this penetration is the west wall of the T-G Building northwest corner (903' EL).
As shown on Drawing No. 1, the majority of the penetration seal consists of cellular concrete. The cable tray penetrations have 1" to 2" thick layers of polystyrene on top or bottom or on both top and bottom of the cables. The District removed the polystyrene material for a distance of 2\" to 6" in from each surface of the cable tray penetrations and "Kaowool" is tightly packed in this void. The "Kaowool" around the cable tray penetrations is then covered with a minimum h" thick fire retardant coating of Flamemastic 71A. The cable trays have various cable loadings.
The conduit penetrations illustrated in Drawing No. I are representative of conduits ranging in size from 1" to 4" with various cable loadings. Some conduits only extend through both sides of tu. wall 4" to 14" and stop; others extend 4" to 14" on one side and are routed to ps'nts of cable connection or to equipment enclosures on the other side; and others pa;s through the wall and are routed to points of connection on both sides of the wall. At least one of the open ends of the conduits which stop at the penetration, is tightly packed with~
3" to 6" of "Kaowool".
Drawing No. 2 illustrates cable tray and conduit fire barrier penetrations through the north wall of the 903' EL Reactor Building northeast corner. The oppos,ite side of this penetration is the south wall of the Cable Expansion Room between column lines J.4 and J.8 (918' EL of the Controlled Corridor).
. 1785 237
Page 2 As shown on Drawing No. 2 the majority of the wall penetration consists of cellular concrete with a surface-mounted seal consisting of an 8" thick " Bisco" (SF-20 silicone foam fire stop installed by Brand Industrial Services, Inc. of Park Ridge, Illinois, which is identical to Dow Corning 3-6548 RTV silicone foam) penetration fire stop barrier. The " Bisco" seal extends beyond the edge of cable tray and conduit penetrations a minimum of 8" and beyond the edge of the cellular concrete penetration a minimum of 5".
The cable tray penetrations have 1" to 2" thick layers of polystyrene or N
" Scotch Kote" (a combustible sealant) on top or bottom or on both top and bottom of the cables. The District considers the 3M " Scotch Kote" to be less than or equal to the polystyrene in combustibility. The trays have various cable loadings. The District removed the polystyrene and the 3M " Scotch Kote" material for a distance of 2 " to 6" in from each surface of the cable tray penetrations and "Kaowool" is tightly packed in this void. The "Kaowool" around the cable tray penetrations is then covered with a minimum h" thick fire-retardant coating of Flamemastic 71A.
The conduit penetrations illustrated in Drawing No. 2 are representative of conduits ranging in size from 1" to 4" with various cable loadings. Some conduits only extend through both sides of the wall 4" to 14" and stop; others extend through the wall 4" to 14" on one side and are routed to points of cable connection or to equipment enclosures on the other side; and others pass through the wall and are routed to points of connection on both sides of the wall. The open end of the conduits which stop at the penetration, is tightly packed with 3" to 6" of "Kaowool".
Drawing No. 3 illustrates cable tray and conduit fire barrier penetrations through the Control Room floor EL 932' . The Control Room-floor is also the ceiling of the Cable Spreading Rocm.
Drawing No. 3 shows that a majority of the floor penetration consists of grout.
The cable tray penetrations are entirelv surrounded by an 8" thick layer of grout. All cable trays and conduits stop 1" to 4" above the Control Room floor and consist of various cable loadings. Conduits range in size from 1" to 4".
Some conduits extend just below the Control Room floor while others are routed down through the Cable Spreading Room to points of cable connection. Some conduits are tightly packed with 3" to 6" of "Kaowool" and then covered with a minimum \" thick fire-retardant coating of Flamemastic 71A. The District is currently planning to modify some conduit penetrations by tightly packing approximately 1" of "Kaowool" in the bottom of the conduits as a damming material, then filling the remainder of the conduit, for at least the thickness of the floor (8"), with Dow Corning 3-6548 RTV silicone foam distributed by Chase Technology Corporation of Huntington Station, N.Y.
Justification for the Adequacy of the CNS Cable Tray and Conduit Fire Barrier Penetration Seals , , ,
References:
1785 238
- 1. May 10, 1978, Fire Endurance Tests on Silicone Foam, Ceramic Fiber, Cellular Concrete and Marinite XL Panel Penetration Seals in Masonry Floors (Designs FC 258, FC 259 and FC 260) for Bechtel Power Corporation by Factry Mutual Research at the National Gypsum Research Center.
Page 3
- 2. September 29, 1978 transmittal from Mr. William F. Naughton of Commonwealth Edison to Director of Nuclear Reactor Regulation;
Subject:
Dresden Station Units 2 and 3 Quad - Cities Station Units 1 and 2 Zion Station Units 1 and 2-Electrical Cable Penetration Fire Barrier Test NRC Docket No. 50-237/249, 50-254/265 and 50-295/304.
- 3. September 1, 1978 transmittal from Mr. E. E. Utley of Carolina Power &
Light Co. to Mr. A. Schwencer of the NRC;
Subject:
, H. B. Robinson Unit No. 2 License No. DPR-23 Docket No. 50-261 Response to Request for Additional Information -
Fire Protection Program All of the penetrations described in Drawings 1, 2 and 3 contained a masonry material as the major portion of the penetration seal. The District feels the fire resistance cf th.is material, which ranges from 8" thick for the Control Room Floor (Drawing No. 3) to 24" thick for the Cable Spreading Room walls (Drawing No. 1), is adequately documented in the fire endurance tests listed as References 1, 2 and 3 above.
In " Floor Test 3 Assembly" of Reference 1 (Bechtel Power Corporation Fire Tests) nearly all penetrations consisted of an 8" thick seal of cellular concrete. As the test results show, the masonry fire penetration seal successfully passed the 3-hour fire endurance test. American Nuclear Insurers has formally accepted this particular fire stop. Refer to Attachment 1 entitled, "ANI Information Bulletin to Agents and Brokers and Architect / Engineers", page 6.
The floor section used for the fire test in Reference 2 was constructed of lightweight concrete with two thicknesses, 4 and 6 inches. This floor section successfully passed the 3-hour fire endurance test. Also included in this test report is Appendix A entitled " Cellular Concrete Fire Stops", which adequately justifies the fire resistance of cellular concrete.
In the wall test of Reference 3, Penetration No. I consisted of a 7" thick fire stop of lightweight concrete. Also, in the floor test, Penetration No. 3 consisted of a 7" thick fire stop of lightweight concrete. Both of these penetration seals passed the 3-hour fire endurance test.
In Drawing No. 2 an 8" " Bisco" silicone foam penetration seal is illustrated.
Documentation for the adequacy of this fire stop material is contained in Reference 1 fire endurance tests referenced above. Floor Test No. 1, Penetration No. 11 consists of a 6" conduit penetration sealed with 7" of silicone foam, 1" of "Kaowool" and 1/8" silicone elastomer. This penetration compares very closely with the 8" of silicone foam used in the District's penetration seal described in Drawing No. 2 and one of the conduit penetrations described in Drawing No. 3. Penetration No. 11 successfully passed the 3-hour fire endurance test. ANI has given formal acceptance of very similar fire stop designs. Refer to Attachment 1, pages 7, 8 and 9.
1785 239
Page 4 Also tested in Bechtel's Floor Test No. I were numerous penetrations which consisted of 9" of silicone foam, 1" of "Kacwool" and 1/8" silicone elastomer.
This design can also be closely compared to the penetration seal illustrated in Drawing No. 2 and a conduit penetration described in Drawing No. 3. These penetrations also passed the 3-hour fire endurance test. ANI has given formal acceptance of a very similar fire stop design. Refer to Attachment 1, pages 8, 9,10 and 11.
Drawings 1, 2 and 3 all illustrate penetrations containing "Kaowool" as a fire stop material. The adequacy of "Kaowool" as a penetration seal is illustrated in Penetrations 9 and 10, Floor Test No. 2 of Reference 1. These penetration seals consisted'of 3 1/4" of "Kaowcal" covered on both sides with " marinite board and k" Flamemastic. The CNS cable tray penetrations illustrated in Drawings 1 and 2 all utilize a minimum of 4" total thickness of tightly packed "Kaowool" with a k" Flamemastic coating. The conduit penetration reals shown on Drawings 1, 2 and 3 utilize a minimum of 3" of tightly packed "Kaowool". This use of "Kaowool" at CNS can be compared closely with Floor Test No. 2, Penetrations No. 9 and 10 of Reference 1, which passed the 3-hour fire endurance test. ANI has given formal acceptance .of this particular fire stop design.
Refer to Attachment 1, page 12.
Attachment 2 is the Flamemaster Corporation's, " Fire and Ventilation Stops for Cable Penetrations". These 3-hour design fire stops utilize "Kaowool" in a very similar Manner as to the Cooper Station fire seals as shown in Drawings 1, 2 and
- 3. Drawings 1, 2 and 3 show a Flamemastic coating of h" thick which is the same thickness described in the Flacemaster 3-hour serls. The only difference is the cables are sprayed with a 1/8" thick coating in tae Flamemaster design. The CNS fire stop design uses cellular concrete to fill the penetration except for the dimension of the cable trays and conduits. The Flamemaster cable tray fire stops utilize a \" thick Marinite XL board to fill the penetration except for the dimension of the cable tray. The District feels the cellular concrete is superior in fire resistance to the Marinite board. Flamemaster states their fire stop design will pass a 3-hour fire er. durance test. The District's position is that the similarities between the Flamemaster fire stop design and the CNS fire stops adequately substantiate the fire resistance of the CNS cable tray and conduit fire barrier penetration seals.
Reference 2 presents adequate justification for not conducting a hose stream test subsequent to a fire endurance test to determine the qualification and rating of a fire stop. This justification is on Page 6, Attachment I of Reference 2.
The District's position regarding the ability of existing cable penetration fire stop barriers to withstand application of a fire hose stream is based upon the barrier construction and the fire endurance justification detailed above. Only the physical 'fimensions of cable trays and cable conduits are not filled in with lightweight cellular concrete. It is not considered credible that, under fire conditions, a straight stream of water from an inside 1" fire hose can be directed so as to impinge on the non-concrete portion of the fire stop. All CNS inside fire hose no::les are suitable for use on Class A, B, & C type fires.
This type of noz:le is not capable of producing a solid, straight stream.
178B 240
Page 5 Besides the justification of the adequacy of the.CNS fire barrier penetration seals described above, it should be noted that automatic sprinkler protection is or will be provided on both sides of the cable tray and conduit fire barrier penetrations under consideration, except for the CNS Control Room. The following areas have or will have in the near future automatic sprinkler protection:
Cable Spreading Room - 918' EL'. Control Building Cable Expansion Room - 918' EL. Controlled Ccrridor N.E. Corner of Reactor Building - 903' EL.
T-G NW Corner Electrical Cable Chase - 903' EL.
While the' Control Room does not have sprinkler protection, it is constantly attended, is equipped with automatic products-of-combustion smoke detectors, and has adequate manual fire fighting equipment, i.e. Type A and BC fire extinguishers, a fire hose station, and a low pressure CO, hose station. The Control Room is continuously manned by operators who have received extensive fire brigade training.
Based upon the construction of the CNS fire barrier penetration seals and the substantiation of those penetration seals based on the close similarities of fire testing by others, the District's position is that the CNS cable tray and conduit fire barrier penetration seals are adequate. Add to the adequate barrier fire stops the fact that automatic sprinkler protection is provided in all fire stop areas that are not continuously manned, and the fact that the only combustible loading in the unmanned areas is the cable itself, which is a high quality, fire-resistive cable (refer to Appendices A, B, C, D and E of the District's response to Appendix A to Branch Technical Position APCSB9.5-1),
then the CNS fire stops are more than adequate. It is also difficult to imagine a fire in the areas under consideration burning for a 3-hone period, without extinguishment by the CNS fire brigade in light of the lessons learned from the infamous Browns Ferry Fire; namely the effective use of water on electrical, cable fires.
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-' ' ATTACIDIDrf 1 Page 1 of 12 i
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! AMEPJCANh :Rc.:=ar.' ssatseEa:NG DEPA.RTMENT
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NUCLEAR 2,e . . c . .a=n-INSURERS V
-JUCLEAR E.'iERGY U AB!UT/ ?c0PEoTY '!JSUR Ai1CE Ai30CIAT!0ll BURT C. PROOM, CPCU ceawat u.a.s-BULLETIll TO AGENTS Ai10 BROKERS & ARCHITECT / ENGINEERS NEL-PIA INFORMATION BULLETIN .
NEL-PIA's Information Bulletin dated June,1975 contained the basic parar.eters for an acceotable fire exposure test for Mechanical and Electrical Penetration Fire Stops. The test procecure has been refined and is now issued as a NEL-?!A/MAERP Standard Test Method.
' A copy of the "NEL-PIA /MAERP Standced Method of Fire Tests of Cable and Pipe Penetration Fire Stops" is attached for your informa-tion. -
All penetration fire stops to be installed should be submitted to this test procedure and approved by NEL-PIA /MAERP before the installation.
\ _L_ C-- 3 February , 1976 l Carney Jj d. C /
Engineering Manager - Property 1785 245 The Enc'ur;e. Su's 225 270 Farmiccen Avraue Firemgt:s Crne::ie.t 05:3? (2001 577-7205 7 Emmer " '=-e. i?a215W?'t
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Page 3' o:" 12 B. Fire & Hose Stream Test The fire stop assembly shall be exposed to the standard time temperature curve found in ASTM E-119-73 (ANSI A 2.1) for a minimum of three hours. 3 Immediately follcwing the fire endurance test the fire stops shall be subjected to a hose stream applied to the exposed surface for a period calculated on the basis of 24 minutes for each 100 sq. ft. of exposed area. The hose stream test shall comply with one of the following procedures.
- 1. The stream shall be delivered through a lb inch nozzle set at a discharge . angle of 30% with a nozzle pressure of 75 psi and a minimum discharge of 75 gpm with the tip of the nozzle a maximum of 5 ft.
from the exposed face.
- 2. The stream shall be delivered through a lh inch nozzle set at a discharge angle of 15% with a nozzle pressure of 75 psi and a minimum discharge of 75 gpm with the tip of the nozzle a maximum of 10 ft.
from the exposed face.
- 3. The stream shall be delivered through a 2h inch national standard playpipe equipped with 1 1/8 inen tip, nczzle pressure of 30 psi, located 20 feet from the exposed face.
C. Acceatance
- 1. Fire shall not propagate to the unexposed side of the test assembly nor shall any visible flaming be observed.
- 2. No individual thermoccuole of the unexposed surface of the fire stop shall exceed 3250 F above ambient temperature.
- 3. No opening develops that pe: nits a projectiun of water from the stream beyond the unexposed surface during the hose stream test.
- 3. Materials Hazard Analysis Individual components of the systems shall be subjected to one of the following flame spread tests, with results submitted for review, before approval of the system can be given.
A. Components shall be subjected to " Standard Method of Test for Surface Burning Characteristics of Building Materials" ASTM E-84 and obtain flame spread rating of 25 or less.
OR B. Test Scecimens Two (2) samoles of each ccmocnent, 5 inches wide by 18 inches long by incn : hick snall be preparec.
The two(2) samples shall be arranged parallel with tneir lor.g axis vertical and a 4 inch air space between.
1785 246'
.- .' Attagh. I ,
, Page '2 of 12 NEL-PIA /MAERP STANDARD METHOD OF FIRE TESTS OF CABLE AND PIPE PENETRATION FIRE STOPS
- 1. Scoce The fire stop is to be considered an integral part of the wall or floor construction it is installed in.
Due to the various penetrations used in Nuclear Power Plants, final specifi-cations and layout for the proposed test procedure should be submitted to NEL-PIA /MAERP, Technical Review Department before the test is conducted.
Ccmpl.ete details of the Quality Assurance Program including materials, work procedures and precautions should also be submitted. A Materials Hazards Analysis shall be conducted per Section 3 and all materi.als shall pass this analysis before being considered acceptable. The Quality Assurance Program is considered an integral part of penetration fire stop and varia-tions between the test program and the installation program will not be acceptable. The test procedures submitted to NEL-PIA /MAERP shall include all details of cable tray anchoring, thern:occuple placement, cable arrange-ments, and any mechanical methods of anchoring the penetration fire stop to the primary construction.
The fire stop shall be tested as a complete system for a minimum of three (3) hours in the test described below. The system should have this fire endurance capability from either side of the wall or floor. Testing of individual components is not acceptable.
- ' Satisfactory passing and approval of a penetration fire stop tested in the floor position will result in approval by NEL-PIA /MAERP for the same fire stop in the wall position.
- 2. Fire Endurance Test A. Test Specimen 1
A wall or floor construction of previously " proven fire resistance rating of at least three hours is to be used for the test. It may be modified to a minimum acceptable size of 3' x 3' with the understanding that this will result in approval by NEL-PIA /MAERP for restricted size applications in field.
- 2. Size and configuration of test penetrations to be as shown on attached sketch.
- 3. Cable loading in trays and conduit to be 100%.
- 4. Cable conductor size in test to be as follows:
331/3% - No.16 Two conductor cable 331/35 - Multiconductor (7 conductor - No.12 cable) 33 1/3.5 - 1/C 300 M Cn. Cable
- 5. Cable used in test to have polyethylene insulation with PVC jacxet of nominal 600 volt rating.
- 6. Cables to extend one (1) foot beyond on exposed side and three (3)
, feet'on the unexposed side.
- 7. Anchorira of cenet-= tion te ':e eenivelet to anchoring ir the field-
~
1785 247
Attach. 1 -
! Page 5'of If2 TEST LAYOUT MINIMUM 3-HR. WALL OR FLOOR
[ ASSEMBLY SOLID BOTTOM ,x OPEN LADDER STEEL TRAYS ff STEEL TRAYS 6" STEEL CONDUIT l iI !
x x 3 "-* 4 I I !
q6" .
14" i *] 1 48" x x I I I 4"i g .. 6" i e'-
48" x x 10' x . 10" SLEEVE (STD.
OPEN PIPE)
-* 6 "'r-- LADDER 16" 24" j 6" PIPE (CAPPED) x 6" SCLID l ennnu aa!
x 36" .
48" 10' x - THERM 0 COUPLE LOCATION (ASBESTOS PAD COVERED)
NOTE: DISTANCES ARE FOR TEST PURPOSES ONLY AND,00. NOT NECESSARILY COMPLY WITH RECOGNIZED STANDARDS.
i785248
.' .' $ Attach.1 iPage4of12 3
Fire Test A Bunsen burner with a 1 inch high cone shaped flame shall be used as the ignition source. The entire length of the flame shall be located between the samples at the bottom of the test arrangement. Durati.on of exposure shall be one (1) minute.
Results If flames propagate to the top of either test sample in three (3) minutes or lass' after removal of the burner flame, the material is not acceptable for use in the penetration seal. -
If flama propagation to the top of either test sample occurs in over three (3) minutes after removal of the burner flame, the materials should be labeled as combustible and appropriate storage and handling procedures ta ken .
9 et 0785 249'
Attach. 1
] P.E.M. C-2.1.10 2 of 3 Page 6 of 12 10/S/78 s- y -. - , .
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BURT C.PROOM.CPCU r,.s.d.at NOTIFICATIC:l 0F ANI/MAERP CABLE AfiD PIPE PEi;ETRATION FIRE STOP SYSTEM ACCEPTANCE The following fire stop designer has successfully cc=pleted the "AtlI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". This form is provided for information only.
FIRE STOP DESIGNER:.. BECHTEL PCHE?. CORPORATIO:1 D * * }D "
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TEST REPORT DATE: S/10/78 lACCEPTA lCE DATE': 10/S/78 HOUR RATIt;G: 3 GEliERAL DATA C*BLE PENET:37IO'!S l PIPE PENETRATICis Max. Penetraticn Size 6' x 7' 4" Pice in si" x o,' ucening Accepted for Floor YES t its Accepted for Wall YES i its
. Material Cellular Concrete (Eiast1zeil) Same cacerlas as for caote.-
-- 30 lb./cu.f t.
Fire Stop Thickness 8" Cellular Concrete witn reinforcing mesh. Mesh not Same thickness as for cable.
required in penetrations less than, v-as in ei,o l For Material Noncombustible forms used and removed. Same form material as for cable.
LIMITATIONS Tray Types: % i w *s + Cable Construction: No Li :it-tions
% Cable Loading: 455 Tray, 40% Conduit Max. Conduit Sleeve Size: c" e%et - o ur-(t;ote: % Lcading = Total Cross-sectional area of cable / Cross-sectional area of tray /cenduit)
Cceplete details of fire stop installations are to be submitted to American Nuclear Insurers prior to actual installation. AiI acceptance is for insurance coverage related to fire protection of the propertr and is based on information proviced and any infcreation contained hereon is censidered confidential and cannot be released to any other person or organi:ation without the written consent of the cesigner and A"I.
k JJ C% BD -
d.J. CARiiEY - VICE PRESIj G T,PP.0PERTY ENGI;;EER!iiG g785 250 The Ecc ge 5,re 2.:5[ 2N Fcegen W.ej' Fc - eg::n (c~ee.,t CaCJ2 / CC3e7,'-CC5 :1 E 9. ee g tect CIe77-77'.5
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q U UA :s NOTIFICATION OF ANI/MAERP CABLE AND PIPE PENETRATION FIRE STOP SYSTEM The following fire stop sucolier has successfully comoleted the "ANI/MAERP Standard Method of Fire Tests for information only. of Cable and Pipe Penetration Fire Stops". This form is provided FIRE STOP INSTALLER: CHEMTROL CCRPORATION & DOW CORNIfiG CORP.
HOUSTON, TEXAS MIDLAND, MICHIGAN (Chemtrol Corp. installation with Dow Corning Corp material)
TEST CATE: 10/23/75 ,
ACCEPTANCE DATE: 8/6/76 HOUR RATING: 3' GENERAL DATA CAELE PENET3ATIONS l
. Max. Penetration Size 40" x 4r PIPE PENETRATIONS
..i.AAccepted for Floor i iu' pipe sieeve
' YES WAccepted for Wall vn I
l its -
Material YES
~
Chemtrol CT-18/ Cow Corning 3-6548 Che.mtrol CT-18/Dow Corning Q3-6542 RTV Silicone Foam RTV Silicone Foam and/or Chemtrol Density: 15.5 to 22 lbs/cu.ft. Flexible Boot Seal-CT-153; Adhesive using CT 1516 Verification Method CT-4C/Dow Corning 95-081; Cheatro.
Fire Stop Thickness TRAYS: 12 inches minimum CT-3 COL /Dow Corning Slygard 170 (l" damming - 11" foam) Silicone Elastomer, Densi ty:150-CONDUITS: 8 inches min 250 lbs/ cu. ft.
n " da :ine - 7" foan')imum o" mi Tt-e..,n. ,(7" foamws- 1" dammd.9)i Form Material , %e. sin Chemtroi Alumina Silica Blanket - CT-238 and Fiber -C.T-23F w
1785 M 1 LIMITATIONS Tray Types: Ocen ladder-none1 Solid-yes Cable Construction:Raycnem-Flametrol in Solid Trays
% Cable Loading:_ 505 Tray, 50% Conduit Max. Conduit Sleeve Size: o' (Note:
% Loading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit)
Comolete details of fire stop installations are to be submitted to American Nuclear Insurers crior to actual installation. ANI accestance is for insurance coverace related
, to fire crosection of the procerty and is based on informa: ion provided and any
[ in o ation contained hereon is censidered confidential and cannot be released to
. any other person or organisation without the written consent of the Supolier and ANI.
JJ G 4 m
, J.J. CARNEY - VICE PRES) CENT, PROPERTY ENGINEERING
.** I'mse he 2 5/ 2:V Fam.rgen :sente/ FC"vgm (cme:mt CaC32 / CC3Cect $77-7251 E.,c.rewg GC3677-77:5
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. i P.E.M. C-2.1.6 7/27/77
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NOTIFICAT!0:10F AtlI/i!AERP CABLE AllD PIPE PEilETRATION FIRE STOP SYSTEM ACCEPTANCE The following fire stop supplier has successfully completed the "AtlI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". This form is provided for information only.
FIRE STOP INSTALLER:
CAR 30RUNDUM C0. & APPOINTED IllSTALLERS f!IAGARA FALLS, NEW YORK TEST DATE: 2/24/77 ACCEPTANCE DATE: 7/27/77 HOUR RATItiG: 3 GENERAL DATA CABLE PENET:ATIONS l PIPE PEi!ETRATIONS
,. Max. Penetration Size al" x 584" I 10" cice sleeve
( m.j Accepted for Floor YES I YES
, \g.y/ 'Accepted for Wall YES
~ Material l YES Silicone foam *as dispensed by ICMS Same as cable, plus, 150# leaded Silicone Foam Injection Unit. foam, or insulated boot-type Density: 17-23 lbs/cu.f t. seal.
~
+0cw cc+n o ;::an cru m 4,. ..
Fire stop Thickness Trays: 10 inches minimum 8 incnes minimum (l" da m.ing-9" foam) (l" da=1ing-7" foam)
C71a nduits: 8 inches minirrum a s-4,,7 7 a e -)
Form Material . _
Carborundum Company,s r_ibertraxc ulk ._'1ber, .
Durabianket and Hot Board '
W85-252 LIMITATIONS Tray Types: Ocea ladder-solid batten Cable Construction: No limitations
% Cable Loading:_ 50", Tray, 50% Conduit o" (Note: Max. Conduit sleeve Si:e:
% Loading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit)
Ccmplete details of fire stop installatiens are to be submitted to American ?!uclear Insurers prior to actual installation. AtlI acceptance is for insurance coverage related to fire protection of the property and is based on informat!cn provided and any infor ation contained hereon is considered confidential and cannot be released to
- any other person or organi:ation without the written consent of the Supplier and A.';I.
JJ C- m
' J.J. CAR?iE'r - VICE PRESIDE!1T PROPERTY E:iGINEERI::G De ice-v %e 35/ 270 :::-vjen 2.eg/ :::-cy:, cc. e-nu), cec 22 / 23677-7205 u Eq e .
y Attach. 1 Page 9 of 12
' , P.E.M. C-2.1.7 7/27/7/
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i J '.i_,v N i n .rL BURT C.FSCOM.CPCU h n+ g g NOTIFICATION OF ANI/MAERP CABLE AND PIPE PENETRATION FIRE STOP SYSTEM ACCEPTA The following fire stop supplier has successfully completed the "ANI/MAER? Standard Method of Fire Tests of Cable and Pipe Penetration Fire Steps". This form is provided for information only.
FIRE STCP INSTALLER:
INSULATI0il CCNSULTANTS & MANAGEi!ENT SERVICE, INC.
BRICGMAN, MICHIGAN TEST DATE:
2/2477 ACCEPTANCE DATE:
7/27/77 HOUR RATING: 3 GENERAL DATA CABLE PENETRATIONS l Max. Penetration Si:e 41- x :en- PIPE PENETRATIONS i iv m pe sieeve
' Acce;1ted for Floor vec Accepted for Wall i ygg vee i Material YES Silicone foam +as dispensea by ICMS Same as cacie, plus, i:ue teacee
- Silicone Foam Injection Unit. foam, or insulated boot-type Density: 17-23 lbs/cu.ft. seal.
- 0cw Corning 3-65a8 RTV Silicene Fire Stop Thickness Trays: 10 inches minimum 8 incnes mini:r.um (l" damming-9" foam) (l" da=ing-7" foam)
Conduits: 8 inches minimum na e-i ~,_7 " fr.w Form Material Carborundum Company's Fiberfrax-Sulk Fiber '
Durabianket and Hot Board 785 253 .
LIMITATICNS -
Tray Types: Onen ladder-solid bottom
". Cable leading: 505 Tray, 50% _ Conduit Cable Constructicn: No limitations (Note: Max'. Conduit Sleeve Size: C
" Leading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit)
Ccmplete details of fire stcp installations are to be submitted to American Nuclear Insurers prior to actual installation. ANI acceptance is for insurance coverage related to fire protec icn of the procerty and is based on informaticn croviced and any informati0n c0ntained hereon is considered confidential and cannot be released to
. any other persca or crgani:atien without the written consent of the Supplier and ANI.
J. ~J . L ms J.J. CARNEY - VICE PRESICENT, PROPERTY E!;GINEE?.IIi'i The Ee . ge Lee ::5/ 27C 7:::mes ,1-.eu_/ For- ge., cesre::e C: :: ::C?$77-73051 Egree5 Ce:: Q0?:77-775
- Attach. I Page 10 of 12 P.E.M. C-2.1.5 2 of 2 5/7/77
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gy P e o.at NOT!FICATIO:10F At1I/PAERP CABLE Atl0 PIPE PEllETRATIO:t FIRE STOP SYSTEM ACCEPTAtlCE The following fire stop supolier has successfully ccmpleted the "AtlI/P.AERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Steps". This form is provided for information only.
FIRE STOP IiSTALLER: TECH-SIL IflC.
ELK GROVE VILLAGE, ILLIi!0IS (FORMER ADDRESS-HOUST0tl, TX)
TEST DATE: ffh'M
- ACCEPTAt CE DATE: 6/7/77 HOUR RATIt!G: 3 GENERAL DATA CA51.E DENETRATIONS i PIPE PEliETRATIO'l5 Max. Per.e:raticn Size an" v an"
_. Accepted for Ficor t i t)" cioe sleeve
' Yes t Yes v-jAccepted for Wall Yes i Material Yes TS-MS-0009 Silicone Foam (Dow Insulatea pipe ano coat type pipe Corning RTV Silicone Foam, 7:o. 3- seals using silicone adhesives, 6543) loose fibres, silicone sponge Density 15-22 lbs/cu.ft. rubber, covers, boots, and Trays: li' arrangement silicone gel in various systems.
Fire Stop Thickness (10" foam - 1" damming) , Leaded Foam TS-MS-00-150 & 250 Conduit: 10" foam - no' damming, or (Density 150 & 250 lbs/cu.ft.)
9" Arrancement (na e n=,'_ 1 " a =-i ned Form Material lead Foam Thickness: 12" minimum TS-MS-0013, Blanket Dam .ing; TS-MS-0014, Board Dam =ing; TS-MS-0016, Loose Fiber Damming; and TS-MS-0025, Damming Anchors LIMITATI0tlS Tray Types: h N- en lia en**a-
". Cable Loading:_ 50".
Cable Construction: "c Limitations Tray, 50 , conduit Max. Conduit Sleeve Size: 6" Aluminum (itete: " Loading = Total Cross-sectional area of cable / Cross-sectional area of tr 'mdui t)
Ccmplete details of fire stop installations are to be submitted to American :;uclear Insurers pricr to actual installation. A:1I acceptance is for insurance coverage related to fire cratection of the prcperty and is based en information :rovided and any informa-ion contained hereon is censidered ccnfidential and cannct be released to any other persen or organization without the written consent of the Supplier and A?;I.
J J C us J.J. CART;EY - VICE PRESICENT PROPERTY ENGINEERING -
% Ecccge Ete ::sj 27c femy;:e., e .'.me,/ r c cge., Ceyec: }::c;2,;;t j ::c; :7 gs , g g ,y c3 3r.vr3 1785 254'
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!!0TIFICATIO:10F AttI/MAERP CABLE A!iD PIPE PE'iETRATICN FIRE STOP SYSTEM ACCEPTAf!CE The following fire stop supplier has succersfully ccepleted the "AfiI/MAERP Standard Method of Fire Tests of Cable and Pipe Perietration Fire Stops". This form is provided for information only.
FIRE STOP I!tSTALLER: BISCO PARK PIDGE, ILLIt:0IS TEST CATE: Various (1976) lACCEPTAtiCEDATE: 10/12/77 HOUR RATIllG: 3 GEliERAL DATA CAELE :E'iETRATIONS l PIPE PEiiETRATIOfiS Max. Penesration Size 2' x 3'6" I c.
_;Acceped for Floor Yes t Yes
..jAccepted for 'Jall Yes i Yes P~"'a-ial BISCO SF-20 (1977) Silicone Foam Same as Cable Penetraticas
'. or Dcw Corning 3-6548 RTV Silicone plus BISCO SF-20. SF150L Silicone Foam Lead Material Density: 17-23 lbs/cu.ft.
Fir 2 Stcp Thickness 9 Inches Minimum 9 Inches Minimum - SF-20 12 Inches Minimum - SF-150L Form Material CFR 2300 Leose Alumina Silica Fiber - Left in Place. (flon-Combus tible Forming Used and Removed).
LIMITATIONS Tray Types : naan ' =d"- "" W id %"~ Cable Construction: Un f ini" Hone
% Cable Leadine:_ a0% Tray, 40* Conduit Max. Conduit Sleeve Size: 6"
(;;cte:
% Leading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit)
Ccmplete details of fire stop installations are to be submitted to American fluclear Insurers prior to actual installation. Atil acceptance is for insurance coverace reined
- to fire protection of the property and is based on information providad and any information contained hereon is cen:idered confidential and cannot be released to
.,: any other perscn or organi:stion withcut the written consent of the Supplier and ANI.
cW m>
, J.J. CARNEY-VICEPRESIDEyT,?ROPERTYENGINEE?.I;G .
N Ec ;3 Me 245 ' 27C Feus=n Aven.ej, Fe.~ge- Canw u CtC32 / CC3t77-7r5 a E 9. eea g Net E e7,7-7TS 1785 255
- Attach. 1
] P.E.M. C-2.1.10 1 of 3 Page 12 of 12 10/5/78
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h__4 ls EUM C.PROOM.CPCU Pmasent NOTIFICATIO:t 0F AtlI/fiAERP CABLE Arid PIPE PEtiETRATION FIRE STOP SYSTEM ACCEPTAMCE The following fire stop designer has successfully completed the "AfiI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". This form is provided for information only.
FIRE STOP DESIGiiER: BECHTEL PO!!ER CORPORATION TEST REPORT DATE: 5/10/78 l ACCEPTANCE DATE: 10/5/78 lHOL'R RATIliG: 3 GEliERAL DATA CABLE PE'?ETRATIONS l PI:: Dr.NETR
- TIO'45 Max. Penetration Siae A' x 7 ' I th +., in Na..lael 11 . 6" Pice/10* S1. :'). 2"Pice/16" Si.
Accepted for Floor YES i YE!
. Accepted for Wall YES I YES
- RMaterial 1. Dow Corning 3-c548 RTV Silicone 1. Same material as ror caone.
Foam & Marinite XL Board. Foaa Density: 16.6 to 17.7 lb./cu.ft 2. Same material as for cable.
-or-
- 2. Kaowool & Marinite XL Board Fire Stop Thickness
- 1. 3-1/4" Silicone foam with 1/2" 1. 8" Kaowool with 1/2" XL Boarc XL Soard Both Sides and coated Both Sides and coated with with Flamemastic 71A or 77, or
- Flacemastic 71A or 77
- 2. 3-1/4" Kaowool with 1/2" XL. 2. o" Silicone Foam with 1" M Doa r-i Both Sides and coated Board (one side-left in place).
s.,i th flamema stic 71 A or 77 Form Material Marinite XL Boaro left in place Same fon material as for cacie.
LIMITATIONS
=
Tray Types: Un limit =tions Cable Construction: ', '4 i'=+4nns
- Cable Loading: a:" Tray, 40% Conduit Max. Conduit Sleeve Size:
6" wi+H 7" in=
(M:te: % Loading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit)
Cm.olete details of fir: stop installations are to be submitted to A erican Nuclear Imrers crior to ac ul installation. Alii acceptance is for insurance coverage related tc 1r2 rotaction of the procerty and is based on information provided and any in-le ::i:n contained hereon is considered confidential and cannot be released to
_ a..y 0:her person or organisation w. .;out the writt.r. consent of t!.e designer :.nd Alii.
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The Flcmemastic system for secling cable penetraticns in f!cors and wcils offers cll the features and performance that you cre Icoking for et c forcl cost that is signI'~
ficently Icwer then cny compcrable system. 9 N
Penetrcrien secis can be constructed inexpensively, and offer anything frcm c simple . cut rect.ive f.ire, vent.lation i end wcter step to a f.re i step in, ct will pcss a W
3-Hour ASTM E-ll8 Test. @-@-
Ficmemastic cystem Ccble Penetration ecis recture: . - fo~2, Q==-d I. Simple construction - no pre-engineered cpenings rec;uired, y 2 In expensive - no other method offers cil of the desirable b 0 fectures at cnything nect the totcl InstcIled cost of Ficmemcstic, 6 9 r b
(' 3 Ecsy access for future cables - cdditienc! cables can be instclied througn the Flcmemestic cenetretion sects without the .;se cf a drill, .
scw or : ny metal tcols. A 5/3" O. D. x 24" long piece er picstic werer c;pe with a 4" long peint cut on one end, can be icid on top of the existing cchles and r.visted Eith c little pressure behind it, the. pice wi!! penetrete the !ac! without any chcnce of dc- cging the cccle .inselct.:c n . peccuse Ficmemcst.ic is c one pcrt meter.i ci , t.g e opening cround rthe newIy Instc!!ed cchles can be ecsily resecled by cpcly.ing c ncndrull cf Ficmemast.ic to the cree w.eh a glove.
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- [""8 AUGUST THYSSEN-HUTTE AKTIENGESELLSCH AFT RHl .
THYSSEN
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- 2" 5'*- 25965 30. Okt.1974 e.ven N11NINIAX-FLANIN!ASTIK Abschottungsmal3nahmen in unser_.n Warmbandwerk II Sehr,geehrte Herren!
In der Anlage lassen wir ihnen die mit Ihrem o.a. Schreiben gewUnschten Fotografien zugehen.
In 'unserem Warmbandwerk 11 sind die Hydraulikanlagen von den Kabelkanslen abgeschottet worden. Die beigefugten Aufnahmen zeigen die Schottwand nach einem Brand im 61keller (Innen- und Au!3enseite). Die Schottung hat ca. 4 Stunden den Durchgang des Feuers verhindert und mit dazu beigetragen, das Feuer wirkungsvoll zu bek5mpfen.
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Niit freundlichen Grnl3en August Thyssen Hutte Aktiengesellschaft Reproduced for graphie cf.arity. Original !ctier on file.
TRANSLATION Suci: MINIMAX-FLAMMASTiK f re s:op rrethccs in our re!!mg m.'l li Gentlemen. P! ease f:r'd enc!csed tne phciegrachs ycu reates*ec In our rolf:ng mal No il all hycrauhc ;nstaHat:cns have ceen secarated fro n tre cacia
.ur neis Oy (Hamemas:ic) fire stops The enc!cSec On0;cs sn0'.Y su0n a f;re separ3:icn after a hre in cut oi! COliar. ?r0m 0013 ssCes The (F:amemastic) fire SIOD naS SUC00ssfuily s c ta ned the f're for a penoc of Icur t curs and thus Ocntr cutec to effec:We!y ccmcat "80- M"st-Thyssence Translator: HWE ^ ^'~ e" s='e a 1785 259
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TYPICAL CONSTRUCTION OF CABLE TRAY FIRE AND VENTILATION STOP FOR LARGE OPENINGS AROUND TRAY IN FLOOR OR WALL APPLICATION:
Cut 1/2" thick Marinite XL bocrd to fit crounc tray as shown (top board fits flush ccress top of cable trcy) and overlco wcil by 3" to 6" all crcund. Attcch beard to wcll with I/4" dIcmeter hex heco 'ccits cnd steel wcll cnchors. (Drawing 3)
Cut a p.i ec e o r 1,, th. ,icx, ,-pounc censity sacwooi rne same wicrn as t.ne inside or.
the cable trcy and ccout 10" to 2C" long decending on the sice needed to fill the ccvity , cetween tn, e cottorn of the upper cocrd and the top or r.ne ccoles in inns trcy. x ,oll t, .nis piece of 7n co w ool u p l.,i :e c cecrcll onc. .insert it w.th modercie i
pressure into th.is cavity to till ine ccening. nll any smc l crcc, sK, between In, e bccrds and the cchle trcy or the Marinite XL bocrd and the .scli with smcil pieces or the .,ts.cowool. (Draw.ing n) t
_eorcy or trowel a l/o* ,, f,wel) cocr.in.c. or gIcmemastic / / ($crcv, able' or Mcst.ic) over the exposed surtcce e t tne tscowool r...icer anc icr.i ni te c, o cro, . On verticcl surfaces g
.t mcy .,e necesscry to g,rusn o r sorcy c I.:gni cocr ct Mcmemcstic / / cver tne entire i
c re c and ,e t d ry fo r c0 'o c.0 m .inutes to crovice ccecuate cc esion tar c n, eevier ca c 'i ng . Over!co the wci! ct !ecs- I" all c ound and 'ce sure all socces 'cetween the Mcrinite bocrd one the wcils cre filled and cocted. Co c t th e tc o and bo ttem o r i,n e cable trcy 'o r a rn i nim um o r s,.,,
a n ecen. sice o r the cene trct.:on seal w. .itn c l.8" thick (wer) coct of . !cmerncsric. Wnere cceles in 'ecys are siccked thnaugh a cenetrction, fo!!aw ine scme general procec,ure. ; Draw.ing Cs.
FOR 3 HOUR DESIGN FiRESTOPS The procedure c.escriced acove is rne scme ter a a, hour c,es.ign except that, cr.iar to instclling the Mcrinire XL becrd crouna the tray, you .vrcc the Kcowcol cell around the trcy and fill the tray at t~ - at tne .cenetration. Do not till the entire c cviry . The tcp Merinite XL beced must extend inta the trcy cs close to the top row at cceles as poss., ic le. ,h t .is crococure must ce perfermec on both sices c.g the penetrct. ion. It .:s recommendec r.,ncttwoiwoe. pieces or A,cr.:nste .. X,uc' ocrd be usec cn ecen sice or cpenings in ce:l.ings cn;.
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- 5 :-l' wcw @ y. w : M ; W h =tw2.w;c s-v.5 TYPICAL CONSTRUCTION OF CABLE TRAY FIRE AND VENTILATION STOP FOR CLOSE OPENINGS AROUND TRAY IN FLOOR OR WALL APPLICATION:
Cut a piece of I" thick, 4-pound density Kcowool the scme width es the inside of the ccble tray and cbout 10" to 20" long, decending on the size needed to fill the cavity between the well opening and the tcp of the cables in the ecble trcy. Roll this piece of Keowool up like a bedroll cnd insert it with moderare pressure inro this cavity to fill the opening. Fill cny small cracks between the sides cod boticm of the cchie trcy cnd the wall with small pieces of Kcowccl.
(Drawing A) z.cray or trowel a 1/-o ,, th.ic,,< (wer) coch.ng or riememcst.ic n (.e.prcyecie er Mcstic) over the execsed suricces of the Kcowcol fiber. Overlco the well at lecsr 1" .:!I cround end be sure thct all voids between cables, trcy end well are filled. Ccat the top and bot'em of the ccole trcy Er c minimun of 3' en ecch side of the penerretion seal with a 1/8" (wer) coat of Ficmemcstic. (Drawing C) x FOR 3 HOUR DESIGN FIRESTOP Use the scme procedure called cut in the 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> design for fire and ventilcrica stop c.or slots on Icr3e openings cround tray in iber er well.
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TYPICAL CONSTRUCTION OF FIRE AND VENTILATION STOP FOR CABLE SLEEVE AND CONDUlT OPENINGS IN FLOOR OR WALLS APPLICATION:
A cut piece of I" thick, 4-pound density Kcowool, chout 10" wide end 8" long (for 6" dicmeter sleeve opening) and roll it up like c bedrcil. Wrep this rope of Kcowool cround the cables and insert it with moderete pressure into the sleeve opening to fill the opening. Push the Kcowooi down till it is cpproximately 1/4" below well or ficar level. (Drcwing D)
The ccbles should be sprecd cecrr and a henciul of Ficmemcstic should be placed in the middle of the bundle just ceave the r'cowcol to seci the bundle and plug cil voics u-etween the cc,o les. e-queece cchles together ar.ter . inserting rlcmemcstic .
(Drawing E) e.prcy, pour or tmwel e I/, n tn. . .ick (wer) coat.ing or ricmemcst.ic n (sprayecie or
,.g M Cs t.lC) oVer rtle eXDCsed suf!cCe or Ibe .,NCcWCol flwer Cnd over.gCp In, e Wall or ficar at least 1" cll cround. Coct se cchie bundle on both sides of the penetration for a minimt.m of I" with a l/8" thick (wer) coat -f F!cmemastic brushed or sprayed on. (Drcwing F)
FOR 3 HOUR DESIGN FIRESTOP The ccove procedure must be used on both sides of the acening of the ccble sleeves.
The eccle bundle en both sides of the penetretion shou!d be cected for c minimum of S' 0" with c 1/8" thick (wer) coat of Ficmemestic 77, av - .
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- .w m ugw-=.a w mac:w mm 1.=;.:ma. me'+ w wr.cm.ws TYPICAL CONSTRUCTION OF CABLE FIRE AND VENTILATION STOP FOR SLOTS IN FLOOR APPLICATION:
Cut l/2" or 3/4" thick Mcrinite XL bocrd to fit cround ccbles as shown and overicp ficer by 3" to 6" cli cround. Attech beerd to ficar with I/4" cicmeter hex head boits and steel anchors. (Drawing G)
Cut pieces of I' thick, 4 pound density Kcowool, depending on the sice needed to fill the cavities between the cables and the boced. Roll pieces of the Kcowoci uo li,se c bedecil cna .insert i.t with modercre cressure into cny cavities . .
to till the openings. Fill any :mcil crccks between the beards and between the bocrd end the ficor with 7ncll pieces r?f the Kcowool. (Drawing H)
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Trowel o r po ur a 1/ ~ n (wer) coct.ing c F,. cmem ast.ic -
// over ',.e exoosed surface of the Kccwool fiber and Marinire beard. Cvericp the mason y floor et lecsr 1" cil cround cr.d be sure cil spcces between the Mcrinite becrd cnd the Raor cre filled and cocted. 3n sh or scrcy the ccbles for c minim.:n of 2' ^.i" en occh side or the penetrct. ion seci w.tn l/c% , inick (we tsj coat or. rlcmemcst.ic #/
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