ML17334A528

Responds to 840404 Request for Addl Info Re Request for Exemption from 10CFR50,App R Requirements Re Fire Hatches. Drawings,Sketches & Description of Addl Insulation Encl. Results of Calculations & Addl Info Will Be Sent by 840627

ML17334A528
Person / Time
Site:	Cook
Issue date:	06/15/1984
From:	Alexich M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML17321A099	List: ML17321A098 ML17321A100 ML17334A528
References
AEP:NRC:06920, AEP:NRC:6920, NUDOCS 8406210364
Download: ML17334A528 (29)

Text

REGULATO INFORMATION DISTRIBUTION TEN (RIDS)

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AC(ESSION'BR:8406210364 DOC ~ DATF: 84/06/15 NOTARIZED:, NO DOCKET FACIL:50-315 Donald C, Cook Nuclear Power Planti Unit lr Indiana L 05000315 50"316 Donald C. Cook Nuclear Power PlantE Unit 2E Indiana 8 05000316 AUTH'AtYIE AUTHOR AFFILIATION ALEXICHEH.P. Indiana 8, Michigan Electric Co.

RECIP,NAME RECIPIENT AFFILIATION DEf<TONE H ~ R ~ Office of Nuclear Reactor Regulationi Dir ector

SUBJECT:

Responds to 840404 request for addi info re request for exemption from 10CFRSOEApp R requirements re fire hatches.

Drawingsisketches 8 description of addi insulation encl, Results of calculations 8 addi info will be sent by 840627, DISTRIBOTION CODE: A000S COPIES RECEIYEO:LTR TITLE: OR Submittal: Fire Protection ENCL j SIZE:g0 NOTES: 5~

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL NRR ORB1 BC 01 INTERNAL: ELD/HDS3 IE/NHITNEYi L 1

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1 IE FILE NRR FIORAVANT07 Ob 2

,02 NRR HAMBAGH 0 NRR B 09 2 2 NRR/DL D IR 1 Q LE 04 1 1 RGN3 1 0 EXTERNAL: ACRS NRC PDR ll 02 3

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INDIANA 8 N ICHIGAN ELECTRIC CON PAN Y P.O. BOX 16631 COLUMBUS, OHIO 43216 June 15, 1984 AEP:NRC:06920 Donald C. Cook Nuclear Plant Unit Nos. 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-74 INFORMATION CONCERNING REQUEST FOR TECHNICAL EXEMPTIONS FROM REQUIREMENTS OF APPENDIX R TO 10 CFR 50 FIRE HATCHES Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Nashington, D.C. 20555

Dear Mr. Denton:

This letter responds in part to your request of April 4, 1984 for additional information on our request for exemption from the requirements of Appendix R to 10 CFR Part 50 with regard to fire hatches.

Me are providing as attachments to this letter the relevant physical information with regard to the hatches which you requested.

Attachment 1 contains drawings and sketches. Attachment 2 provides a deser iption of the additional insulation including how it being applied. Attachment 3 includes sketches which identify the is currently movable parts and unprotected areas of the hatches.

Since the hatches do not have a specific fire rating, we performed our own engineering evaluation and associated heat transfer calculations. The results of these calculations and information regarding alternatives (Item 4 of Mr. Steven A. Varga's letter, dated April 4, 1984) are currently under management review and will be transmitted to you by June 27, 1984.

This letter has been prepared following Corpor ate procedures which incorporate a reasonable set of controls to insure its accuracy and completeness prior to signature by the undersigned.

Very truly yours, 8406210364 8406i5 RDR ADDCK 05000515 M. p. Al Aah I )yS PDR Vice President MPA/cm cc: John E. Dolan M. G. Smith, Jr. - Bridgman R. C. Callen G. Charnoff w/attachment E. R. Swanson, NRC Resident Inspector - Br idgman - w/attachment

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APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermO-lag"-" 330 FIRE BARRIER APPLICATIONS IN THE NUCLEAR INDUSTRY USES Appendix R, Paragraph G.2.C. permits "Enclosure Where fire hazards analysis indicates equipment of cable and equipment and associated necessary for safe-shutdown must be protected non-safety ciicuits of one redundant train In e from design basis fire. fire barrier having a one-hour rating. In addition.

fire detectors and an automatic fire suppression The following are examples of nuclear power shall be installed in the fire area." 'ystem plant equipment which can be adequately protected by THERMO-LAG: One-hour fire barriers are also recommended for

~ Cable Trays use in plants still in the design phase. where

/ sprinklers are planned to be used in a given fire

~ Conduit area.

~ Junction Boxes

~ Condulets .THREE-HOUR RATED

. THERMO-LAG BARRIER

~ Electrical Devices and Equipment APPLICATION

~ Instrumentation Tubing The three-hour THERMO-LAG fire barriers are

~ Instrumentation Devices used to comply with the requirements of

~ Instrumentation Racks 10CFR50. Appendix R. The barriers are recommended for use in retro-fit of operating

~ Motor Operated and Solenoid Valves plants. NTOL plants. and plants in the design

~ Fire Stop phase where sprlnklers will not be Installed In the

~ Fire Barrier Non-Load Bearing Wall fire area. Some buildings in the nuclear plant complex are not compatible with sprinklers such ADVANTAGES as the Reactor Building and electrical equipment

~ Low weight (minimum impact on existing areas. The three-hour THERMO-LAG barriers can be installed in these areas.

hangers)

~ Minimum ampacity derating Economic trade-off studies indicate that even where sprinklers can be installed. it is cheaper to

~ Fully qualified and approved for nuclear use use a three-hour THERMO-LAG barrier and no

~ Quick delivery and rapid installation time sprinklers versus using the one-hour

~ Economical (three-hour THERMO-LAG barrier

~ THERMO-LAG'barrier plus sprinklers. due to the high cost of sprinklers.

, is less costly than sprinklers plus one-hour barriers) . The three-hour THERMO-LAG barrier satisfies

~ Easy to backfit to operating plants the requirements of Appendix R. Paragraph G.2.A. "Separation of cables and equipment and ONE-HOUR RATED associated non-safety circuits of redundant trains

' THERMO-LAG BARRIER APPLICATION The one-hour THERMO-LAG fire barriers are used for 10CFRSO. Appendix R compliance retro-fit in operating plants. and plants nearing by a fire barrier having e three-hour rating".

QUALIFICATIONS Both the one-hour THERMO-LAG fire barrier.

and the three-hour THERMO-LAG fire barrier operation tNTOL olantst where sprinklers are have been acoroved by the Amiercan Nuclear already installed or are ptanr i rt t(~ he (nstattnrt in Ins<irers tANn anr/ the Niiclear Renulatory ~

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series of ASTM E119 fire tests were run for panels avoids masking/covering non-sprayed various configurations of ladder-type trays. areas. and also eliminates over-spray.

solid-bottom trays, and conduits for 40 percent cable fill and single layer cable fill. At the SEISMIC QUALIFICATION onclusion of each fire test. the test specimens THERMO-LAG has been analyzed to Seismic I were subjected to. and pagsed. the mandatory requirements. and found to be adequate.

hose stream test. In addition to conducting the However. there are no NRC requirements for the fire tests in accordance whh ASTM E119. the test fire barriers to be Seismic I, since the accident procedures specified in the ANI/MAERP. "Basic scenerio does not require a nuclear plant to be Fire Protection Guidelines" were strictly adhered designed for a seismic event and a fire

, to. concurrently.

Both the one-hour and three-hour barriers have If a particular nuclear plant requires the fire had ampacity derating tests in accordance with barriers to be Seismic I the product can meet

~

IPCEA-NEMA standards. that criteria.

THERMO-LAG LEADING PARTICULARS QA/QC One-Hour Three-Hour THERMO-LAG can be supplied and installed to Item Barrier Barrier any required quality classification, e.g.. Quality I Thickgess of barrier1/2 inch 1 inch (safety related). Quality II (balance of plant), or Weight of barrier 3.5 lbs./ft2 7 lbs./ft.z Quality III (or general) (remainder not included in Radiation Resistance2 x 108 rads 2 x 108 rads Quality I or II). Most users have specified Quality Ampacity Derating 7-12 percent 17 percent Class II. since the Nuclear Insurers required quality control on the barrier material.

INSTALLATION installation. and inspection.

THERMO-LAG is quickly installed by unskilled TSI has approved quality assurance/quality craftsmen who can be trained by TSI. The material control manuals suitable for the required quality can be installed by means of preformed panels (1/2 classification.

inch thick) which are scored and contoured to fit most 'equipment. It can also be applied by air spray DELIVERY methods. or hand trowel. The product sets up THERMO-LAG is supplied in 55 gallon drums semi-hard in a few days, and is fullycured. ready for and initial shipment can be made in 6 weeks ~

use in 28 days. Prefabricated panels installation ARO. Prefabricated panels can be supplied in format. is quicker. cleaner, and barrier thickness sizes to suit the user (4 ft. x 6i/2 ft. is the usual quality control is factory controlled. However, size), and usually shipped 6 weeks ARO.

in-place spray installation is also acceptable. and will generally be required for irregular objects and In special cases. where plants have an unusually difficult to work places. Prefabricated panels may critical need. TSI has made special arrangements to be fabricated at the job site by the installer, or be accommodate even shorter delivery cycles.

factory supplied from TSI. The use of prefabricated 3260 B r ann on Ave.

St. Louis. Mo. 631 39

~ (3" ) 352-8422

, ~ Te>ex: 44.2384

~ w IQ P)9Q 4 T$ >> 0 +2 ii00>

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermo-Iag 330-1 FIRE BARRIER ADVANTAGES OF thermO-lag'- FIRE BARRIERS THERMO-LAG one-hour and three-hour rated THERMO-LAG is only one inch thick for the fire barriers are fully qualified by the American three-hour rated barrier, and one-half inch thick Nuclear Insurers (ANI). and the Nuclear for the one-hour rated barrier. It does not require Regulatory Commission. Both one-hour and large spatial volumes around the protected three-hour barriers have been tested to ASTM equipment. This is particularly beneficial to E119 fire endurance requirements. and ANI raceway systems such as trays, since qualification criteria. The barriers are tully THERMO-LAG barriers will not reduce aisle approved for use in Nuclear Plants. space or the space between trays.

THERMO-LAG one-hour and three-hour rated fire barriers have been tested for ampacity THERMO-LAG is easily removed from protected derating. when applied to electrical cable trays equipment for access or to pull additional cables.

Removable access panels can be provided or the and conduit. The derating values of 10 percent (one-hour barrier) and 17 percent tthree-hour THERMO-LAG barriers can be cut and repaired barrier) are extremely low values. and provide the by a tested/approved procedure.

ability to retro-fit THERMO-LAG to power cable THERMO-LAG can be provided to any required raceways. seismic criteria. It has been seismically qualified THERMO-LAG'S low weight has minimum effect to SSE accelerations up to 7.5g.

on hangers and raceway systems. This feature THERMO-LAG has a minimum effect on makes THERMO-LAG particularly suited to previously seismically qualified equipment. since retro-fit applications in operating. or near it does not appreciably change the natural operational nuclear plants. trequency ot raceway systems due to its low THERMO-LAG is readily installed by various weight.

methods such as spray. trowel. or roller. It can THERMO-LAG can be provided to any required also be installed as prefabricated panels. The Quality Assurance level.i.e.. up to Quality Class I.

versatility of installing THERMO-LAG by TSI has a complete QA program for nuclear work.

different methods provides constructio'n meeting alt the requirements of ANSI 45.2.

management with options. which can be best suited to the plant needs. Several nuclear power plants are using THERMO-LAG fire barriers for new and retro-fit THERMO-LAG is essentially chemically inert. It. applications.

has negligible chloride content. and will not affect stainless steel. THERMO-LAG can be used to protect raceway THERMO-LAG is water based. and contains no supports. as required by 10CFRSO, Appendix R.

asbestoes fibers. It will not pose any THERMO-LAG three-hour rated fire barriers environmental problems to personnel or negate the need for sprinklers. at a considerable equipment. It will not introduce potential cost saving. This is extremely useful in nuclear maintenance problems tor motors or HVAC plants. since sprinklers are not desirable in some systems due to airborne fiber release. areas. such as electrical equipment rooms.

THERMO-LAG is not affected by water. portions of the Reactor Building. and Radwas'.e areas.

theretore. pipe leaks. clean-up operations. or inadvertent fire suppression system sprinkler THERMO-LAG can be supplied with short lead actuation will not require any repair or time. in both pre-fabricated panels and 55 galled rnplArnmc nt of fhe THERMO-LAG tirP. barriPrs, cfrums tor spray or trowel aoolications.

1

~ ~ TSI can provide field service engineers to assist THERMO-LAG is low cost. for both the material I construction management during the installation and installation.

I phase. THERMO-LAGis extremely versatile and may be TSI qualifies THERMO-LAG applicators at the used for many fire barrier protective purposes, in TSI facility. and provides certification as addition to raceway protection such as.

THERMO-LAG applicators. This insures quality protection of diesel oil day tanks. non-load installation of TH6RMO-LAG. and that the bearing partitions. protection of instruments, and expected fire performance will be met, valves i 3260 Brannon Ave.

Si:. Louis. Mo. 631 39

~ (31 4) 352.8422

~ Teiex'4-2384

~ Ti iex: 'P0.9901

INC.

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermO-lag 330-1 FIRE BARRIER ONE-HOUR FIRE BARRIER TEST PURPOSE OF TESTS endurance and hose stream test. Secondary The purpose of the tests was to qualify. and gain considerations were to keep the temperature of AMI approval for THERMO-LAG, for use as a the cable jackets well below the auto-ignition one-hour rated fire barrier in nuclear power temperature of the cable.

generating plants.

DESCRIPTION OF TEST ARTICLES Specifically, the tests were designed to prove the adequacy of THERMO-LAG material for The cables used for the fire tests were Appendix R compliance applications. since representative of "GENERIC" and the IEEE-383 Appendix R, Paragraph G.2.C. permits the use of

~

cables installed in nuclear generating plants, for an approved one-hour rated fire barrier, plus use in power. control and instrumentation sprinklers and detectors to protect equipment circuits. Cables made by the major suppliers of needed for safe shutdown. IEEE-383 cable. such as Rockbestos. Raychem, Okonite. and B I W were tested.

The one-hour fire rated THERMO-LAG barriers are used to protect cable trays. conduits. Tests were conducted on the following instrument tubing. and equipment. configurations:

1. Solid bottom 6 inch by 6 inch tray. 40 percent TEST LOCATION filled.

All tests were conducted at TSI Incorporated. St.

~

2. Solid bottom 6 inch by 6 inch tray. one layer of Louis, Missouri. by Industrial Test Laboratories cables.

(independent third party), St. Louis; Missouri.

3. Ladder bottom tray 12 inch by 4 inch. 40 percent filled with one air drop cable.

TEST CRITERIA All the requirements of the American Nuclear 4. Ladder bottom tray 12 inch by 4 inch. one Insurer's publication. "ANI/MAERP STANDARD layer of cables.

FIRE ENDURANCE TEST METHOD TO QUALIFY 5. 2-1/2 inch and 4 inch conduits. 40 percent A PROTECTIVE ENVELOPE FOR CLASS 1E filled. including condulet and pull box.

ELECTRICAL CIRCUITS", were implemented in The tray. conduits. and equipment used are the the fire test procedures. In addition. the fire test same as installed in a typical nuclear generating procedure was reviewed and approved by ANI p'rior to testing: plant. The test specimens utilized "U" shaped..

horizontally mounted tray sections in order to The THERMO-LAG one-hour fire barrier was comply with the ANI requirment to have one subjected to the standard temperature time horizontal and one vertical section in the furnace.

curve found in ASTM E-119-76 (ANSI A2.1) for a Each test article was covered with a nominal miniritum of one hour. Immediately following the E-119 fire endurance test. the test specimen was one-half inch thickness of THERMO-LAG in subjected to a 2-1/2 minute hose stream test.

strict accordance with TSI QC procedures. The delivered through a 2-1/2 inch national standard various methods of installing THERMO-LAG were

. tested. in order to qualify each method.

playpipe. equ:pped with a 1-1/8 inch tip. nozzle Pre-fabricated panels. air spray and hand trowel pressure of 30 psi. located 20 feet from the test article. installation was used. A repair patch was also tested to qualify repair procedui~ s. The The main criteria was that the cable circuit THERMO LAG barner was then ciired for up ic intearitv be maintained throuahoiit tne fire PA riavc nrinr tn tnct:nn

TEST PROCEDURE See Figure 1 for a photograph of a typical The procedure used for each test was as follows:

cimen before testing.

1. Before the test. ANI for some tests, Architect Engineer for some tests. Owner for some tests, and Industrial Test Laboratory for all tests reviewed the test article to verify THERMO-LAG application thickness and cure time. The test instrumentation was checked for calibration and operability.

2. Light furnace and place test article inside; seal

~

If furnace and start clock.

3. Stabilize furnace temperature. and follow ASTM E-119 time/temperature curve; record temperature/time values.

If 4. Monitor cable thermocouples and circuit continuity light panel.

FIGURE 1 5. Regulate gas supply to achieve temperature Typical Specimen Before Testing control.

6. After one hour remove test article, keeping TEST EQUIPMENT circuit integrity lights hooked up.

The equipment used for the test was calibrated just prior to the test, and consists of the 7. Within as short a time as possible following: (approximately 2 minutes) initiate hose stream test. rotating and pitching test article assembly ASTM-E-119 FIRE SIMULATIONTEST to play hose stream on-all surfaces of the RNACE The furnace was steel plated and object. Terminate hose stream test in 2-1/2 ulated. and its inside dimensions measured 36 minutes.

ches x 71 inches by 50-1/2 inches. It included 8. Visually inspect specimen. verify test data and 11 gas burners (with individual adjustable valves), sign data sheet.

mounted four on each of two sides, and three on the rear wall. Ten chromel/alumel thermocouples are provided to monitor furnace temperature. The TEST RESULTS front face of the furnace was used to mount the The test results. have been approved by ANI, and test specimen. Adequate exhaust. and control of THERMO-LAG certified for use in nuclear gas supply was provided.. generating plants based on the following:

Thermocouples on Cables Ten number 24 ~ All cable circuits retained electrical continuity gauge chromel/alumel thermocouples were throughout fire endurance and hose stream mounted to the cable jacl ets at selected points in tests.

trays/conduits to monitor cable jacket temperatures. The locations were selected in both the upper. lower, and center of the "U" section to provide representative data. from all locations on ~

J the test specimen.. ~ ~

Multi-L'Ight Display A multi-light display pariel

'nd strip chart recorder was used to monitor cable circuit integrity for circuit to circuit. circuit to system, and circuit to ground cases. Nine r 9J tr+

cables were monitored in each test from various

~

locations in the tray.

Tbermocoupie Recorders Two thermocouple int chart type recorders were utilized to nitor and record furnace. and cable mperatures.

Fire Pumper Truck A 1250 gpm Class "A-Pumper truck capable of 90 ost discharge FIGURE 2 Tvptcat Spectmen Alter Teettno pressure was iised fnr the hnse stream test

~ The THERMO-LAG fire barriers were structurally intact and charred, but did not have any burn through holes. and the test specimen had no damage from the hose stream tests. (See Figure 2 for photograph of a typical specimen after testing).

~ The THERMO-LAG t fire barrier was cutshowed open.

and the cables examined. The cables no visible sign of fire damage. (See Figure 3 for photograph of the cables within a typical specimen after exposure to the One-Hour. Fire Endurance and Water Hose Stream Tests.

In addition to ANI approval the Nuclear

~

Regulatory Commission (NRC) has approved FIGURE 3 THERMO-LAG one-hour rated fire barriers for Cables Within A Typical Specimen Aner Testing installation in some nuclear generating plants.

3260 Brannon Ave.

St. Louis. Mo. 631 39

~ (31 4) 352-8422

~ Telex: 44-2384

~ Telex: 20-9901

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermo-lag 330-1 FIRE BARRIER THREE-HOUR FIRE BARRIER TESTS PURPOSE OF TESTS the cable jackets well below the auto-ignition The purpose of the tests was to qualify, and gain temperature of the cable.

ANI approval for THERMO-LAG, for use as a tliree-hour rated fire barrier in nuclear power DESCRIPTION OF TEST ARTICLES generating plants. The cables used for the fire tests were Specifically, the tests were designed to prove the representative of "GENERIC" and the IEEE-383 cables installed in nuclear generating plants, for adequacy of THERMO-LAG material for Appendix R compliance applications. since use in power control and instrumentation circuits.

Appendix R. Paragraph G.2.a. permits the use of Cables made by the major suppliers of IEEE-383 an approved three-hour rated fire barrier to cable, such as Rockbestos. Raychem, Okonite, protect equipment needed for safe shutdown. and BIW were tested.

The three-hour fire rated THERMO-LAG barriers Tests were- conducted on the following are used to protect cable trays, conduits. instrument configurations:

tubing, and equipment. 1. Solid bottom 6 inch by 6 inch tray. 40 percent filled.

TEST LOCATION

2. Solid bottom 6 inch by 6 inch tray. one layer of All tests were conducted at TSI. Incorporated, St. cables.

Louis, Missouri. by Industrial Test Laboratories (independent third party). St. Louis. Missouri. 3. Ladder bottom tray 12 inch by 4 inch. 40 percent filled with one air drop cable.

TEST CRITERIA

4. Ladder bottom tray 12 inch by 4 inch. one All the requirements of tl e American Nuclear layer of cables.

Insurer's publication. "ANI/MAERP STANDARD FIRE ENDURANCE TEST METHOD TO QUALIFY 5. 2-1/2 inch and 4 inch conduits. 40 percent A PROTECTIVE ENVELOPE FOR CLASS 1E filled, including condulet and pull box.

ELECTRICAL CIRCUITS". were implemented in The tray. conduits. and equipment used are the the fire test procedure. In addition. the fire test same as installed in a typical nuclear generating procedure was reviewed and approved by ANI plant. The test specimens utilized -U" shaped.

prior to testing. horizontally mounted tray sections in order to

,the THERMO-LAG three-hour fire barrier was comply with the ANI requirement to have one subjected to the standard temperature time horizontal and. one vertical section in the furnace.

found in ASTM E-119-76 (ANSI A2.1). tor a 'urve Each test article was covered with an inner layer minimum of three hours. Immediately following ot stress skin screen. tollowed by a nominal the E-119 fire endurance test. the test specimen one-inch thickness of THERMO-LAG. and then was subjected to a 2-1/2 minute hose stream test. an outer wrap ot stress skin screen. The delivered through a 2-1/2 inch national standard installation was made in accordance with TSI QC playpipe. equipped with a 1-1/8 inch tip. nozzle procedures. The various methods of installing pressure of 30 psi. located 20 feet from the test O article.

The main criteria was that the cable circuit integrity be maintained throughout the fire THERMO-LAG were tested. in order to qualify each method. Pre-fabricated panels. air spray and hand trowel installation was used. A repair patch was also tested to aualify repair endurance and hose stream test Secondary Pfacedoiee The THERiVIO-LAG barr'ii;r waS their considerations were to keep the teniperature of cured for rrp to 28 days prior to testinu.

e Figure 1 for a photograph of a typical TEST PROCEDURE pecimen before testing. The procedure used for each test was as follows:

1. Before the test. ANI. Architect Engineer. Owner and Industrial Test Laboratory reviewed the test article to verify THERMO-LAG application thickness and cure time. The test instrumentation was checked for calibration and operability.

2. Light furnace and place test article inside; seal furnace and start clock.

3. Stabilize furnace temperature, and follow ASTM E-119 time/temperature curve: record temperature/time values.

4. Monitor cable thermocouples and circuit continuity light panel.

FIGURE f

5. Regulate gas supply to achieve temperature Typical Specimen Before Testing control.

6. After three hours. remove test article. keeping TEST EQUIPMENT circuit integrity lights hooked up.

The equipment used for the test was calibrated

7. Within as short a time as possible prior to the tests. and consists of the following:

(approximately 2 minutes) initiate hose stream STM-E-119 FIRE SIMULATIONTEST test. rotating and pitching test article assembly URNACE The furnace was steel plated and to play hose stream on all surfaces of the insulated, and its inside dimensions measured 36 object. Terminate hose stream test in 2-1/2 inches x 71 inches by 50-1/2 inches. It included minutes.

11 gas burners (with individual adjustable valves),

mounted four on each of two sides. and three on 8. Visually inspect specimen. verify test data and the rear wall. Then chromel/alumel sign data sheets.

thermocouples are provided to monitor furnace temperature. The front face of the furnace was TEST RESULTS used to mount the test specimen. Adequate The test results have been submitted to ANI, and exhaust. and control of gas supply was provided. THERMO-LAG is pending certification for use in nuclear generating plants. The following are the Thermocouples on Cables Ten Number 24 major test results:

gauge chromel/alumel thermocou ples were All cable mounted to the cable jackets at selected points in circuits retained electrical continuity trays/conduits to monitor cable jacket throughout fire endurance and hose stream temperatures. The locations were selected in both tests.

the upper, lower. and center of the "U" section to r provide representative data. from all locations on the test specimen.

Itic(ultl-Light Display A multi-light display panel t and strip chart recorder was used to monitor cable circuit integrity for circuit to circuit, circuit to system. and circuit to ground cases. Nine cables were monitored in each test. from various locations in the tray.

Thermocouple Recorders Two thermocouple oint chart type recorders were utilized to onitor and record furnace. and cable temperatures.

Fire Pumper Truck A 1250opm Class -A" Pumper truck caoahfr of 90 osi dtscharae oressure was used FIGURE 2 14 I ~ ~ ~

Typical Specimen After Testing

The THERMO-LAG fire barriers were structurally intact and charred. but did not have any burn through holes. and the test specimen had no damage from the hose stream tests. (See Figure 2 for photograph of a typical specimen after testing).

The THERMO-LAGr>fire barrier was cut open, and the cables examined. The cables showed no visible sign of fire damage. (See Figure 3 for photograph of the cable within a typical specimen after exposure to the Three-Hour Fire Endurance and Water Hose Stream Tests.

FIGURE 3 Cables Within A Typical Specimen Alter Testing Sl....,..

3260 Brannor Ave.

St. Louis. Mo. 631 39

~ (31 4) 352-8422

~ Telex: 44 2 "94

~ Ti iex 2Q.SPQ1

INC.

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermO-lag" 33O-1 FIRE BARRIER MATERIALPROPERTIES This brochure presents the major properties of AMPACITY DERATING THERMO-LAG in interest for nuclear generating Ampacity derating tests performed in accordance plant application. For additional data not with IPCEA Publication Number P-54-440 presented. consult TSI. (Second Edition) (to determine cable base ampacity) and NEMA Publication No.

WC51-1975. The following results were obtained RADIATION RESISTANCE (for 40 percent loading):

2.12 x 10ii rads total 40 year integrated dose One-Hour THERMO-LAG Barriers After irradiation no degradation in fire resistive properties Tray 12.5 percent derating Conduit 6.8 percent derating FIRE PROTECTIVE FEATURES Three-Hour THERMO-LAG Barriers ASTM E-84 Testing for THERMO-LAG 330-1 Tray 17 percent derating Flame Spread Rating Conduit 10.9 percent derating Fuel Contributed Rating

- Smoke Developed Rating 5

0 15 ASTM E-84 Testing for THERMO-LAG Primer MECHANICAL(PHYSICAL) PROPORTIES Flame Spread Rating Fuel Contributed Rating Smoke Developed Rating 50 0 Density wet 10.5 Ibs/gallon Density dry 75~3 Ibs/fthm Dry Weight 1/2 inch thickness ASTM E-84 Testing for THERMO-LAG 350-2P (one-hour rated) = 3.25 Ib/ft' Topcoat Dry Weight 1 inch thickness Flame (three-hour rated) = 6.5 Ib/ft~

Spread Rating Fuel Contributed Rating Smoke Developed Rating 5

0 Water based Tensile strength (75'F) 800 PSI 0 Shear strength (75'F) 1100 PSI One-hour and three-hour fire endurance Flexural stiffness (75'F) 85 KSI

.in accordance with ASTM E-119. and test, Flexural strength (75'F) 2200'PSI Bond strength ANI/MAERP test "ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective Initial Modulus (75'F)

(75'F) 57570 KSIPSI Envelope for Class 1E Electrical Circuits". Thermal Conductivity 1/2 inch THERMO-LAG rated one hour (Unfired. full cured) 0.1 Btu/hr ft.2'F/ft

' 1 inch THERMO-LAG rated three hours ASTM E-119 hose stream test on electrical SEISMIC PROPORTY trays and conduit for one and three hour rated THERMO-LAG has been qualified by static THERMO-LAG (2-1/2 minute hose stream

'pplication) analysis for a very conservative loading. A value of 7.5g horizontal. and 6.0g vertical acceleration.

ASTM E-119 fire tests fcr structiiral steel. comb h scd biaxla Iv wiis usod fui tl o analysis hangers to determine iequi'red THERMO LAG These;alues bcund rr:os; r.i c!ea: gorer-t;ng thickness for one anc .'rice iiuur:~ung

MISCELLANEOUS DATA ACCELERATED AGING AND WEATHERING Shelf Life (Bulk) 6 months Exterior Environmental Conditions Storage Conditions High humidity above 32'F and below 100'F Industrial atmosphere (COp SOp mix)

Asbestoes free Non-toxic Salt spray Interior Environmental Conditions CHEMICAL RESISTANCE OF High humidity THERMO-LAG 330-1 CO> SO> atmosphere mix Water Chlorine Sulfuric acid 10 percent solution Hydrochloric acid 10 percent solution Results: Service life of at least 40 years Sodium hydroxide 10 percent solution Sodium chloride 5 percent solution Acetic acid Kerosene Anhydrous Ammonia LNG LPG Methanol CHEMICAL RESISTANCE OF THERMO-LAG 350-2P TOPCOAT Frequent Contact '

Alkali solutions Salt solutions Alcohols Aliphatic hydrocarbons t

Aromatic hydrocarbons

%5 Occasional Contact Fresh water Waste water Mineral oils Vegetable oils Organic acids Mineral acids Oxidizing agents Ketone s 3260 Br annon Aue ~Q

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APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermO-lag 330-1 FIRE BARRIER TSI QA/AC NUCLEAR PROGRAM HIGHLIGHTS INTRODUCTION Identification and Control of Materials, Parts.

THERMO-LAG one-hour, and three-hour fire and Components barriers can be supplied to any required QA level Control of Special Processes (i.e. QA-I, QA-II. or G). since TSI has an approved QA/QC manual which meets all the Inspection applicable requirements of 10CFR50. Appendix B, Test Control as defined by ANSI 45.2 for nuclear generating plant applications. Control of Measuring and Test Equipment Handling, Storage, and Shipping QUALITYASSURANCE REQUIREMENTS FOR NUCLEAR GENERATING PLANTS Inspection, Test, and Operating Status

.The general requirements for quality assurance in Non-conforming Materials. Parts. or nuclear generating plants is provided by Components 10CFR50. Appendix B. "Quality Assurance Criteria for Nuclear Power Plants and Fuel Corrective Action Reprocessing Plants". The detail requirements Quality Assurance Records are specified by ANSI/ASME N45.2-1977 "Quality Assurance Program Requirements for Nuclear Audits Facilities". In addition. Branch Technical Position Each of the above requirements is an integral 9.5.1 provides specific Quality Assurance part of TSI's Quality Assurance Plan. The TSI requirements for fire protection systems ih Quality Assurance Manager reports through an nuclear facilities. It requires "The Quality independent chain of authority directly to the Assurance (QA) programs of applicants and President. and has complete autonomy from contractors should ensure that the guidelines for Engineering and Manufacturing.

design, procurement. installation and testing, and the administrative controls for the fire protection All phases of the manufacturer of THERMO-LAG systems for safety-related areas are satisfied". fire barriers, from purchase of raw materials, Branch Technical Position 9.5-1 includes the through product manufacturer. inspection, tests.

same requirements as ANSI/ASME N45.2-1977 storage, and shipping are carefully governed by and 10CFR50, Appendix B. QA procedures.

The 18 general requirements of 10CFR50.

AppendIX B are as follows:

Organization TSI QA/QC MANUALPRINCIPLE FEATURES Quality Assurance Program TSI has, and is presently doing Quality Class I.

Design Control and Quality Class II work at nuclear generating stations. The basic TSI Quality Assurance Procurement Document Control Program, including QA manual has been Instructions. Procedures. and Drawings reviewed and approved by Architect Engineers, and the American Nuclear Insurers for use on Document Control nuclear power plants.

Control o! P:.rchased Mater al, Eq< ipn en',, and The main points covered by the TSI Quality Services Assurance Program are as follows:

Organization Control of Purchased

- TSI has a documented organizational structure.

with clearly defined lines of authority. The responsibility and job ctuties are also specified.

A Quality Assurance manager, directs all Services Material. Equipment, and TSI maintains documented records for all raw materials used for quality affecting items. TSI has procedures to assure that purchased raw quality related activities, reporting directly to'he materials conform to the procurement President. The QA manager is completely documents. Source surveillance, inspections, independent from the manufacturing and and testing are utilized to insure raw material engineering departments. quality. In addition. documentation records are Quality Assurance Program maintained to provide traceability.

TSI has a corporate QA program which Identification and Control of MateriaIs, Parts, complies with all the applicable requirements and Components of ANSI/ASME N45.2-7977. The TSI QA program covers all the quality related activities TSI has procedures to completely identify of THERMO-LAG fire barriers such as: raw THERMO-LAG. which is related to the material purchase. manufacturing of manufacturing batch number. TSI also utilizes THERMO-LAG, inspection. tests. storage, the physical separation method. when shipping, indoctrination and training, supplying pre-fabricated THERMO-LAG calibration of equipment. records and includes one-hour and three-hour rated panels. All provision for periodic management review of quality rated items are manufactured in a the QA program. separate area, and stored in segregated areas In special cases the corporate QA program is prior to shipment. The materials used in the revised to include specific customer QA pre-fabricated panels are traceable to the requirements. These project-specific manufacturing batch. Panels can be marked, if requirements are clearly identified. required to suit customer requirements.

Design Control Control of Special Processes TSI is essentially a manufacturer of a standard Special processes used for TSI for testing of product THERMO-LAG fire barriers. and as raw materials. cleaning, and nondestructive such does not perform design work. since the testing of THERMO-LAG are documented and product chemistry is well established. However, accomplished in accordance with applicable all codes, government regulations and OSHA codes. standards, and specifications using requirements have been factored into the qualified personnel.

THERMO-LAG material.

Procurement Document Control Inspection In order to provide quality control and All THERMO-LAG manufactured by TSI is traceability, raw materials are strictly controlled inspected to assure that the product conforms by means of review of supplier Quality to the etablished standard. The inspection Assurance, Source Inspection, Audits, process utilizes quality control personnel, Inspection. and by Documentation different from the people who manufactured Requirements. All procurement documentation the THERMO-LAG.

for quality-related items is maintained and readily retrievable. Test Control Instructions, Procedures and Drawings'SI TSI has a test program which incorporates the has documented procedures. appropriate test procedures, including acceptance limits for the manufacture of THERMO-LAG. The for the type of activity for all quality related work. purpose of the test program is to assure that the THERMO-LAG fire barriers will perform Document Control satisfactorily in service.

TSI has a system for control of issuance of In addition. TSI will provide product documents, including revisions for all activities certification to the customer assuring that the affecting quality. A review and sign-off is product supplied is identical to the product required for both initial issue and revisions. qualified during the approved fire tests. This Revisions are numbered, and clearly identified link is a mandatory requirement of the on documents American Nuclear Insurers.

Control of Measuring and Test Equipment Corrective Action TSI has a program for the calibration of all TSI management periodically reviews equipment used to manufacture non-conformances to find means to preclude THERMO-LAG. Each item is calibrated at repetition. All quality affecting nonconforming specified intervals. depending on the nature of items are reviewed by the Quality Assurance the equipment. Recdl'ds are maintained which manager to determine the cause and look for provide the calibratipn history of the trends.

equipment. TSI calibrates each item to within Quality Assurance Records the specified limits established by the equipment manufacturer. TSI prepares. maintains. and records Quality Handling. Assurance records for all quality-affecting Storage, and Shipping work, The records include inspection. test. and TSI has procedures to control handling. storge. material analysis for all equipment items which and shipping including packaging and are quality related. The records are indexed preservation. to assure the product is received and filed in suitable facilities to prevent their at the job site in usable condition. Particular loss. and are strictly controlled by the TSI care is exercised to insure that THERMO-LAG Quality Assurance manager.

is not subjected to sustained freezing temperatures. or excessively hot temperatures Audits during shipment. Temperature recorders. TSI utilizes a planned. documented system of

, providing a visual trace of the temperature audits to verify all quality affecting operations.

versus time are utilized for all 55 gallon drum The audits are directed by the Quality shipments of THERMO-LAG. Assurance Manager. and cover all aspects of Inspection. Test, and Operating Status the work. The purpose of the audits is to insure procedural compliance. verify adequancy of TSI provides each customer with a simple the Quality Assurance Program, and measure acceptance test procedure. which is utilized to progress.

assure that the THERMO-LAG received has The above listed highlights of TSI's Quality not been harmed during shipment. A small Assurance program. are utilized for all Quality sample is taken from a statistical number of Class I work. Although not required for Quality drums and checked to insure product Class II (BOP) work. many of the same product acceptability. The results of the acceptance control measures are used to assure that testing are documented. and the records THERMO-LAG is manufactured within tolerance preserved.

limits, such that the fire resistant proporties are Each THERMO-LAG 55 gallon drum is also retained.

clearly marked with the date of manufacture. In summary, TSI has a fully developed Quality temperature storge limits. and TSI internal Assurance program. which is implemented to the numbering methods which provide traceability degree specified, or as required to insure product to the batch number. performance. and product similiarity to that Nonconforming IVlaterlals, Parts, or tested.

Components TSI employs documented measures to control nonconforming items. In general, items which cannot be reworked or repaired are scrapped.

Items which can be repaired. or brought up to acceptable limits are corrected. The control of

'on-conforming items is by both tagging.and segregation.

Sl....

3260 Br annon Ave St. Louis. Mo. 631 39

~ i31 4i 352-8422

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INC.

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermO-lag'30-1 FIRE BARRIER TYPICAL APPLICATION AND GENERAL INSTALLATIONDETAILS INTRODUCTION Fireproofing of Oil or Flamable Material Tanks

~

The purpose of this brochure is to provide and Piping nuclear power plant general applications for Regulatory Guide 1.75 Fire Barriers THERMO-LAG. and typical details for the installation of THERMO-LAG one-hour, and Motor Operated Valves.

three-hour rated fire barriers.

APPLICATION METHODS Specific installation details are available in TSI's THERMO-LAG can be applied to cable trays typical installation specification (not part of this before they are one hundred percent pulled witt.

brochure). cables, by providing access holes for pulling of cables to be added after installation of SCHEDULE CONSIDERATIONS THERMO-LAG. THERMO-LAG is easily cut, anC THERMO-LAG fire barriers require approximately repaired by a tested/approved repair procedure.

six to nine months to install in the typical nuclear This feature of THERMO-LAG allows last minute power plant. which is in full compliance with cable pulling, due to revisions in trays covered 10CFR50. Appendix R. The exact installation with THERMO-LAG. However, it is preferable to period depends on the extent of THERMO-LAG begin THERMO-LAG installation when the trays coverage, and productivity factors for a given are completely pulled with cables.

geographical location. TSI provides a factory training program, THERMO-LAG installation should be scheduled including certification for THERMO-LAG to begin at least one year prior to fuel load for applicators. In additon. TSI provides field plants in the construction phase. For operational engineers to give technical direction to the plants. or plants very close to startup, installation contractor. The TSI field service THERMO-LAG is easily retro-fitted. engineers are normally Owner's representatives.

to provide the necessary objectivity in dealing with construction support to the installing GENERAL INFORMATION contractor.

THERMO-LAG approved one-hour, and THERMO-LAG can be applied by any of the three-hour fire barriers can be used for many following methods:

applications in nuclear plants. Some typical uses are as follows:

Pre-fabricated Panels

. electrical Trays. Air Spray Electrical Conduits. Junction Boxes. Condulets Hand Trowel.

Electrical Cable Air Drops Brush Instrumentation Tubing Roller Instruments Pre-fabricated panels are the recommended installation technique for most applications.

Instrument Racks control on thickness is assured, and since'uality

, Fire Walls/Partitions Non Load Bearing Fire Wall Seals

. installation time is minimized. Pre-fabricated panels also delete the need for covering adjacent areas during spraying. and no THERMO-LAG is

!ost due to over spray. The panels can be S>>nnort Ha .-ere Tray Cnnrtuit Tiih;nrl ore-fabricated at the Site by the installation t=irnnrnnfinr nf Ctrnrtnrnl hAamhorc cnntrar tnr nr he fvrtnry supplied by TSI

There are locations near walls. or in congested GENERAL INSTALLATIONDETAILS areas where spray or hand trowel are the only This brochure only provides general installation available method, due to space limitations. details. For specific construction details see TSI's Hangers and structural members can be sprayed typical installation specification for or fitted with pre-fabricated panels. Generally. THERMO-LAG.

the structural members are sprayed. since the Other applications and installations not illustrated required thickness of TAERMO-LAG is less, and are possible. the methods shown are only to stress skin is not required. illustrate the wide versatility of THERMO-LAG for THERMO-LAG can be installed by spray to a nuclear applications. and is not intended to be all tolerance of one-eighth of an inch. when inclusive.

applying a half-inch of THERMO-LAG. Since THERMO-LAG shrinks on setting (full cure time STRUCTURAL STEEL MEMBERS/HANGERS is 28 days). and allowance is made for shrinkage Structural steel members, particularly galvanized when applying THERMO-LAG. The allowance is members (zinc bearing) require a primer one-eighth of an inch for a half-inch finished undercoat. prior to applying THERMO-LAG. The thickness of THERMO-LAG. i.e., install required thickness of THERMO-LAG is about five-eighths of an inch of THERMO-LAG to 1/4" for one-hour fire rating, and 1/2 to 3/4 inch obtain one-half inch dry. for three-hour rating. The required thickness of THERMO-LAG is a function of the mass of the steel member to be sprayed. Tabular data for various shapes and sizes of structural members, including unistruts is provided in TSI's typical installation specification for THERMO-LAG.

Air Orop Cable Junction Box (Protected with THERMO-LAG)

THERMO-LAG Stress Skin Ceramic Blanket Stress Skin THERMO-LAG Barrier Cable Tray Tray Support Air Drop Cable

APPROVED FIRE BARRIERS FOR THE NUCLEAR INDUSTRY thermo-lag 330-1 FIRE BARRIER SEISMIC DATA NUCLEAR GENERATING PLANT The remainder of the plant can be specified to SEISMIC CRITERIA UBC criteria. THERMO-LAG fire barriers are Safety-related equipment needed for safe usually specified to Seismic II criteria for shutdown of the reactor, and related systems is economic reasons. but have been provided for required to be qualified to Seismic I criteria. The Seismic I applications in special cases. The claSsification of equipment and qualification reason for specifying Seismic II criteria for criteria is covered by various Regulatory Guides THERMO-LAG fire barriers is for insuring such as 1.122 and 1.100, as well as IEEE purposes. The American Nuclear Insurers have 323-1974, and IEEE 344-1975. required fire seals to be rated Seismic II for quality control reasons. and have requested For each plant site. maximum credible THERMO-LAG be similarly rated.

earthquake data is used to prepare ground level acceleration (g) versus frequency curves. which SPECIFIC CONSIDERATIONS form the basis of the seismic criteria (Safe Shutdown Earthquake) for each plant. Regulatory There are two very important considerations in Guide 1.122 provides the basis for response the use of THERMO-LAG fire barriers on cable spectra development. and was used to analyze trays. conduits. instrumentation tubes. and THERMO-LAG for seismic loads. equipment:

1. For operating plants. or plants almost GENERAL CONSIDERATIONS completed. a major concern is what effect will Appendix A to Branch Technical Position APCSB THERMO-LAG have on seismically qualified 9.5-1. states that for operating plants -postulated equipment. notably cable trays and their fires or fire protection system failures need not supports.

be considered concurrent with other plant 2. Will THERMO-LAG specified to Seismic II accidents or the most severe natural criteria break loose. and if so could the phenonema". Therefore. a seismic event need not THERMO-LAG missile damage safety-related be considered concurrent with a fire. and equipment.

THERMO-LAG fire barriers are not required to be qualified to Seismic I criteria. However. there are THERMO-LAG due tn its low weight (3.5 lbs per other considerations which dictate the seismic square foot for one-hour barriers. and 7 lbs per category of equipment. such as location of square foot for three-hour barriers) generally will non-safety related equipment in Seismic I not affect previously qualified tray systems.

buildings. Equipment of this nature is usually including hangers. thus making THERMO-LAG supported to Seismic.l loads to insure it will not- barriers ideal for retro-fit in existing plants. The become a missile during a seismic event and reason for THERMO-LAG not affecting damage safety-related equipment. previously design trays/hangers can be shown by considering a typical 18 inch wide by 6 inch high THERMO-LAG one-hour. and three-hour fire tray section. The area of THERMO-LAG per foot barriers can meet the severest seismic criteria. of tray is 4 square feet. thus adding 14 lbs per and have been analytically qualified. foot for one-hour THERMO-LAG barriers, and 28 Nuclear generating plants generally have the Ibs per foot for the three-hour barriers. Trays of following types of seismic criteria: none, UBC this size are usually supported on 6 to 8 foot (Uniform Building Code). Seismic II. Seismic I. intervals. thereby adding a dead load of about The regulatory guides provide criteria which 225 lbs per section. The added stress in typical requires safe-shutdown equipment to be rated tray sections (6. 12. 18. and 24) have been Seismic I The Balance of Plant equipment analyzed dynamically. for the heavier three-hour related to powe~ generation is usually specified to barriers. and the results shown jn all case r.ere rrr c ir inr arraijabjjrry jocnrsrimic i rear.ons cuff jo nn r marnin rn aCCCmm nrem ri @

~ rr

THERMO-LAG barriers. The effect of In regard to THERMO-LAG breaking off during THERMO-LAG on hangers is a function of the seismic events. a dynamic analysis has been hanger design utilized by the Electrical performed which indicated that THERMO-LAG ntractor. and the number of trays supported will not break loose. The dynamic analysis used ich are to be protected with THERMO-LAG. very conservative criteria (7.5g horizontal. 5.0g One nuclear generating plarH which utilized vertical. combined biaxially).

heavy square tubular sectiops for hangers. has been able to re-qualify almost all the existing hangers for the added THERMO-'LAG barriers. THERMO-LAG SEISMIC QUALIFICATION THERMO-LAG fire barriers have been qualified Typical cable tray systems. including cables and by static analysis for a very conservative seismic supports have natural frequencies on the order of loading. A value of 75.g horizontal. and 6.0g 10 to 20 Hz. Addition of mass in the form of vertical acceleration. combined biaxially was used THERMO-LAG fire barriers would decrease the for the analysis. These values bound all nuclear natural frequency by the square root of the ratio generating plant seismic criteria. The analysis of the new total mass to the old mass. For was performed for various size trays, and was example. consider the typical 18 inch by 6 inch based on 9 foot tray spans.

tray section. The weight of a 40 percent filled tray. including the weight of both cables and tray In addition. a dynamic (vibration) analysis was is on the order of 50 lbs per foot. THERMO-LAG performed. considering two cases: the first case three-hour fire barriers weigh 28 Ib/ft. for this assumed the THERMO-LAG barriers and the tray size. Therefore. the decrease in natural cable trays were a composite section (i.e. shared frequency would be 10 to 20 Hz divided by the static characteristics): the second case assumed'he square root of 84. divided by 50. or the new tray total load was carried by the trays. These two plus THERMO-LAG natural frequency would be cases must bound the actual case. The analysis in the range of 7.7 to ~15.4 Hz. which is not a concluded that the THERMO-LAG barriers are significant change. The change in natural more resistant to an SSE than the cable trays (40 frequency will be even less for larger trays. percent fill).

i i

3260 Bi annon Ave.

Se. Louis. Mn. 631 39

~ (31 4) 352-8422

~ Telex'4-2364

~ 're~ex'G 99C i