Text

Engineering Design Info,Thermo-Lag 330-1 Subliming Coating Envelope Sys for Fine Resistive Enhancement of Critical Components of Nuclear Power Generating Facilities, Vol 1
	ML17139A455
Person / Time
Site:	Susquehanna
Issue date:	08/31/1981
From:	; TSI, INC.
To:	;
Shared Package
ML17139A454	List: ML17139A453; ML17139A455; ML17139A456; ML18026A232;
References
	90181, 90181-V01, 90181-V1, NUDOCS 8111040240
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TSI TECHNICAL NOTE 90181 ENGINEERING DESIGN INFORMATION THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM FOR FIRE RESISTIVE ENHANCEMENT OF CRITICAL COMPONENTS OF NUCLEAR POWER GENERATING FACILITIES VOLUME ONE AUGUST 1981 8111040240 811026

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PDR ADOCK 05000387 PDR INC.

3260 BRANNON AVE. ~ ST. LOUIS. MISSOURI 63'I38

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PAGE 2 F F EH VELQF'E TE ST TIHE HIH SEC CH29 30 1 1563 31 1581 32 1 1592 33 1 . 1607 34 1620 35 1628 36 0 37 0 38 0 39 0 40 1732

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TEST DATE: 9 JUL 81 PROJECT filO- - 1?-5941-881

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+ CH 24 k CH 25 40 50 60 B0 90 100 TIf 1E (t"lINUTES)

TEST DATE: 9 3UL 81 PROJECT NO -: 17-5941-881

TSI TECHNICAL NOTE 71880 THERMO-LAG SUBLIMING COMPOUNDS REFERENCE LIST OF SELECTED APPROVALS FROM INDEPENDENT TESTING AND UNDERWRITING AGENCIES AND SELECTED USERS OF THERMO-LAG SUBLIMING COMPOUNDS JUNE 1980 TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex: 44-2384

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PART 1 SELECTED APPROVALS FROM INDEPENDENT TESTING AND UNDERWRITING AGENCIES TSI; INC. 4 3260 8RANNON AVE. ST. LOUIS, MO. 63139 4 (314) 352-8422 e Telex: 44-2384

THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS FROM INDEPENDENT TESTING AND UNDERWRITING AGENCIES Lloydf London: Certificate No. ICD/F80/169 ICD/F80/170 One Hour Fire Protection Hydrocarbon Environment on Primary and Secondary Structural Elements Lloyd's of London: Certificate No. ICD/F80/168 Fire Protection of Class A Bulkheads Exposed to Fire Underwriters Laboratories: Design No. X609 Northbrook, Illinois File No. R6802-3 Project No. 77NK422 One Hour Rating on 14MX228 Column tested per ASTM E119 Time/Temperature Environment Complete Engulfment TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex:-44-2384

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THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Underwriters Laboratories: Design No. X610 Northbrook, Illinois File No. R6802-4 Project No. 77NK422 Two Hour Rating on 14WX228 Column tested per ASTM E119 Time/Temperature Environment Complete Engulfment Underwriters Laboratories: Design No. X611 Northbrook, Illinois File No. R6802-6A Project No. 77NK422 Three Hour Rating on 14WX228 Column tested per ASTM E119 Time/Temperature Environment Complete Engulfment Underwriters Laboratories: Design No. X612 Northbrook, Illinois File No. R6802-8 Project No. 79NK10550 One Hour Rating on 10WF49 Column tested per ASTM E119 Time/Temperature Environment Complete Engulfment Underwriters Laboratories: File No. R6802-7 Project No. 77NK7340 Three Hour Test Conducted on a Steel Load Bearing Wall Assembly During Fire and Hose Stream Tests

THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Underwriters Laboratories: File No. R6802 Northbrook, Illinois Project No. 75NK7843 and 75NK7844 One Hour Exposure per ASTM E119 Time/Temperature Environment Test Program to Evaluate the Fire Resistance Performance of a Mastic Coating When Subjected to Simulated Exterior and Interior Exposure Conditions The following tests were conducted on THERMO-LAG Type 330:

Exterior Ex osure:

Wet, Freeze and Dry Exposure Aging Exposure 6 Months Aging Exposure - 9 Months C02 and S02 Exposures High Humidity Exposure Interior Ex osure:

High Humidity Exposure C02 and S02 Exposures Chlorine Exposure Washing Exposure Aging Exposure 6 Months Aging Expsoure 9 Months

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THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Factory Mutual Research Corp: Serial No. 22014 Norwood, Massachusetts Two Hour Fire Tests per ASTM E119 Time/Temperature Environment on a 5WF18.9 Column Complete Engulfment Factory Mutual Reseach Corp: Serial No. 22015 Norwood, Massachusetts Two Hour Fire Tests per ASTM E119 Time/Temperature Environment on a 8WF39 Column Complete Engulfment Factory Mutual Research Corp: Serial No. 23160.1 Norwood, Massachusetts Two Hour Fire Tests per ASTM E119 Time/Temperature Environment on a 10WF49 Column Complete Engulfment Factory Mutual Research Corp: Serial No. 23187.1 Norwood, Massachusetts Three Hour Fire Tests per ASTM E119 Time/Temperature Environment on a 14WF2W Column with 1.8 oz fiberglass reinforcement Complete Engulfment Factory Mutual Research Corp: Serial No. 23187 Norwood, Massachusetts Three Hour Fire Tests per ASTM E119 Time/Temperature Environment on a '14WF2W Column No reinforcement Complete Engulfment

I THERMO-LAG- 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Underwriters Laboratories: File No. 6802 Northbrook, Illinois Project No. 81NK4969 Five Hour Fire Test Conducted Per ASTM E119 Time/Temperature Environment on 5/8" Steel Plates covered with 2 layers of 1" thick rigid fiberglass form boards and 0.3 inches of THERMO-LAG Type '330 Underwriters Laboratories: File No. R6076 Northbrook, Illinois Project No. 81NK3238 Surface Burning Characteristics of General Purpose Coating (THERMO-LAG 330-1)

Results:

FLame Spread 5 Fuel Contributed 0 Smoke Developed 15 Monsanto Chemical Co: Special Report No. 8008 St. Louis, Missouri Three Hour Test Per ASTM E119 Time/Temperature Environment Conducted on Modified and Welded Beams to form a rectangular core 10" x 5>" x 40".

I THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Department of Transportation: Interim Report No. 459 USA Ballistics Research Laboratories Aberdeen Proving Ground, Maryland 30 Minute and 100 Minute Tests under heat fluxes of 70,000 and 45,000 Btu/Ft2/Hr on THERMO-LAG 330 Coated 1/2 Inch Fire Barriers.

THERMO-LAG 330 was coded as C-2 Insulation in the above report.

Figure Page THERMO-LAG 330 No. No. Descri tion of, Test Coatin Thickness 23 52 Plate Response for 0.32cm (1/8 in) 24 53 Plate Response for 0.48cm (3/16 in) 25 54 Plate Response for 0.64cm (1/4 -in) 27 59 Comparison of Insulators 0.64cm (1/4 in)

T = C-2 Insulation 28 60 Comparison of Insulators 0.64cm (1/4 in)

T = C-2 Insulation 29 61 Predicted Shell Temperature 0.64cm (1/4 in) vs Time for a Tank Car in a Pool Fire 33 80 Addendum 1 Comparison of 0.32cm (1/8 in)

Insulators, C-l, C-2, C-3 T = C-2 Insulation 34 81 Addendum 1 Comparison of 0.64cm (1/4 in)

Insulators T = C-2 Insulation 35 82 Addendum 1 - Predicted Shell 0.64cm (1/4 in')

Temperature vs. Time for a T = C-2 Insulation Tank Car in a Pool Fire

THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED Department of Transportation 30 Minute and 100 Minute DOT/BRL Torch Test Center Tests under heat fluxes of Pueblo, Colorado 70,000 and 45,000 Btu/Ft2/Hr on THERMO-LAG 330 Coated 1/2 Inch Thick Fire Barriers Tests Conducted using THERMO-LAG 330 Subliming Coating System Water Impingement Tests Full Scale Torch Tests Fire Engulfment Tests

1. COMPARISON OF INSULATED TESTS WITH AND WITHOUT THERMO-LAG 330 (C-2 INSULATION)

Simultaneous Fire and Fire Hose Water Tests Coating Thickness: 1/8 Inch

2. SIMULATED POOL FIRE TESTS ON THERMO-LAG 330 (C-2 INSULATION) COATED PLATE Coating Thickness: 1/8 Date: 31 Jan 1977 Inch'est

3. SIMULATED POOL FIRE TESTS ON THERMO-LAG 330 (C-2 INSULATION) COATED PLATE Coating Thickness: 3/16 Inch Test Date: 3 Feb 1977

4. SIMULATED POOL FIRE TEST ON THERMO-LAG 330 (C-2 INSULATION) COATED PLATE Coating Thickness: 1/4 Inch Test Date: 2 Feb 1977

5. BARE TANK CAR TORCH TESTS,

6. TORCH TEST ON TSI COATED CAR:

Test Date: 25 Aug 1976

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THERMO-LAG 330 SUBLIMING COATING LISTING OF SELECTED APPROVALS CONTINUED TSI, Inc. One Hour Fixe Tests per, St. Louis, Missouri ASTM E119 Time/Temperature Environment on THERMO-LAG 330-1 coated Cables, Cable Trays,,Cable Drop and Junction Box Assemblies Tests Included:

Solid Ladder Backs Conduit Cable Drop TSI, Inc. Three Hour Fire Tests per St. Louis, Missouri ASTM E119 Time/Temperature Environment conducted on THERMO-LAG 330 Conformable Fire Wall System

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THERMO-LAG FIRE RETARDANT COATINGS LISTING OF SELECTED APPROVALS FROM INDEPENDENT TESTING AND UNDERWRITING AGENCIES Undenmiters Laboratories: File No. R6076 Nor thbrook, Illinois Project No. 81NK3238 Surface Burning Characteristics of General Purpose Coating (THERMO-LAG 270)

Results:

Flame Spread: 5 Fuel Contributed: 0 Smoke Developed: 100 Factory Mutual Research Corp: Report No. J.I. OE6A5.AF Norwood, Massachusetts THERMO-LAG 270 Coating for the protection of grouped electrical power and control cables TSI, INC. 4 3260 BRANNON AVE. ~ ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex:. 44-2384

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THERMO-LAG FIRE RETARDANT COATINGS LISTING OF SELECTED APPROVALS CONTINUED THERMO-LAG 220-1 FIRE RETARDANT COATING Underwriters Laboratories, Inc.

File No. R6952 Project No. 71NK2916 Dated: January 31, 1971 Factory Mutual Research Corporation Report No. 23046 Dated: February 22, 1971 THERMO-LAG 226 FIRE RETARDANT COATING Underwriters Laboratories, Inc.

File No. R6952 Project No. 74NK2654 Dated: June 4, 1975 THERMO-LAG 226Z FIRE RETARDANT COATING Underwriters Laboratories, Inc.

File No. E61087 Project No. 77NK9710 Dated: March 9, 1978 THERMO-LAG 227 FIRE RETARDANT COATING Underwriters Laboratories, Inc.

File No ~ R6952 Project No. 75NK6227 Dated: January 16, 1976

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PART 2 SELECTED USERS OF THERMO-LAG SUBLlMING COMPOUNDS TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex: 44-2384 1

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REFERENCE LIST. OF SELECTED USERS OF THERMO-LAG SUBLIMING.COMPOUNDS Department of Transportation U. S. Department of the Army Aberdeen Proving Ground Jefferson Chemical Company Marathon Oil Company Texas Eastman Company Tennessee Eastman Company C F Braun Atlantic Richfield Houston, Texas Jakarta, Indonesia" Dow Badische Atomic Energy Plants Rocky Flats, Colorado Lyndhurst, New Jersey.

Malmo, Sweden Lockheed Missile- G.Space-Co.

,Space Data Corporation General Dynamics Corporation.

Hyatt Regency Hotel Chicago k

4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 ~ (314) 352-8422 4 Telex: 44-2384 TSI, INC.

REFERENCE LIST OF SEL'ECTED USERS.

OF THERMO-LAG SUBLIMING COMPOUNDS Continued Philadelphia Gas Works Shell Oil Co. Land Transportation Dept.

Phillips Petroleum .Company" General American Tank Car Co.

Colton, California Hearne, Texas Kansas City, Kansas Union Oil Company Gulf Oil Company Hunt Oil Company Mobil Oil Company Buffalo, New York Arun, Indonesia Paulsboro; New Jersey Wilhemshaven, Germany North Sea Statfjord Offshore Platform Northern Propane Goodman Theatre Hyatt House U. S. Corp. of. Engineers Alaska Armco Steel Company Villa Del Cresta Apartments

REFERENCE LIST OF SELECTED USERS OF THERMO-LAG SUBLIMING COMPOUNDS Continued Jackson Utility Ashland Oil Company Cal Gas Company Building Products Phoenix, Arizona.

Atlanta Gas 6 Light Museum of Fine Arts Houston Walt Disney World Florida Florida Technological University Bahamas Oil Refinery Archer Daniels Midland Mobay Chemical Company Celadyin Corporation Demun School Granite City High School McDonnel Douglas Corporation Seaview Hotel Dawson Nursing Home Villa St. Francis Tad Memorial Home Faraday Nursing Home Hancock Cornet Oil Gateway Hotel

REFERENCE LIST OF SELECTED USERS OF THERMO-LAG SUBLIMING COMPOUNDS Continued Court .of Flags Hotel Michelin Tire 6 Rubber Mason Hanger Cutter Haver Lockhardt Pharmaceutical Building Yellow Transit World Headquarters Lutheran Home Community Memorial Hospital Crystal Court, IDS Center Del Ray Apartments Marriott Motor Hotel Bendix Corporation Lundia Myers Industries Zenith Radio 6 Television RCA Curtis Mathes Television Hager Hinge Ind. Building St. Louis Parking Garage Alyeska Pipeline Service American Cynamid Company Anheuser-Busch, Inc.

REFERENCE LIST OF SELECTED USERS OF THERMO-LAG SUBLIMING COMPOUNDS

- Continued Arabian Oil Company, Ltd.

Khafji, Saudi Arabia Barr Company Berwind Railway Service Benicia, California Channelview, Texas Capitol Industrial Fabricators Carolina Eastman Company Caterpillar Tractor Co.

Peoria, Illinois Delevan, Illinois Diamond Shamrock Oil and Gas Company Gas Plant Engineering Company Goodyear Tire 6 Rubber Company Harmeson Manufacturing Company International Harvester Body Plant S. C. Johnson 6 Son, Inc.

-McDermott Dubai National Rail Car Company Owens illinois Corporation Pennwalt Corporation Beaumont, Texas Calvert City, Kentucky Tank Car Corporation of America Williams Energy Company Butano Spain

'AEROSPA'CE AND DEFENSE P RO JECTS POLARIS MINUTEMAN SATURN

'ENTAUR SURVEYOR APOLLO X-15 TITAN DELTA ELDO ATHENA WANDERER ARCAS ARGO

'ITTLE JOE NASA MULTI-STAGE RESEARCH VEHICLES AEROBEE'LAAR

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HYATT REGENCY CHICAGO, ILLINOIS

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THERMO-LAG 330-1 SUBLIMING COMPOUND DATA SHEET PRODUCT DESCRIPTION: THERMO-LAG 330-1 is a water based, fireproofing, thermally activated, subliming and insulative coating.

When exposed to flame, the material volatizes at fixed temperatures; exhibits a small volume increase through formation of a multi-cellular matrix; absorbs and blocks heat to protect the substrate material.

TYPE: THERMO-LAG 330-1 Subliming Compound COLOR: Antique White 1 FINISH: Textured OUTSTANDING FEATURES: Ease of Application Excellent exterior and interior durability No flash point or fire hazard Chemical Resistance No asbestos Rugged COMPOSITION AND PHYSICAL PROPERTIES:

SOLVENTS WATER Net Weight/gallon lbs/gal 10.5 + 0.5 Non volatile 66 Min.

Flash Point None Consistency Semi-solid, paste-like Warranted Shelf Life 6 Months Storage Conditions Above 32 F and Below 100'F TSI, INC. ~ 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 TeIexi. 44-2384

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THERMO-LAG 330-1 SUBLIMING COMPOUND DATA SHEET -CONTINUED BASIC USE: THERMO-LAG 330-1 is applied to cable trays, cable drop and junction box assemblies,.'tructural steel, support structures, containment vessels, tank cars, and other similiar entities.

THERMO-LAG 330-1 is applied to protect the substrate against loss of'structural stength and accessing temperatures during exposure to fire. One and multiple hour fire ratings can be provided as determined by test utilizing the ASTM E-119 time-

'temperature environment, hydrocarbon or chemical fire environments.

THERMO-LAG 330-1 Subliming Compound has also 'been tested per ASTM E84 Standards by an independent testing laboratory with the following results:

Flame Spread 5 Fuel Contributed Smoke Developed COATING THICKNESS: The coating thickness is a function of the specific weight of the steel to be protected.

The heavier the steel, the thinner the coat'-

ing required for a given fire endurance rating. (Specific film thicknesses are specified by the owner or his duly authorized representative.)

PACKAGED: 55 gallon drums approximately 500 net lbs.

THERMO-LAG 330-1 Subliming Compound is supplied in containers bearing Underwriters Laboratories labels.

STORAGE CONDITIONS: Store above 32'F and below 100'F.

THERMO-LAG 330-1 SUBLIMING COMPOUND DATA SHEET CONTINUED SURFACE PREPARATION: 1. Surface must be clean, dry and free from contaminants including oil, grease and scale prior to application.

2. THERMO-LAG 351 Primer 'should be used as and where required.

MIXING: Mater'ial should be stirred to a homogeneous consistency prior to application.

TEMPERATURE/HUMIDITY: THERMO-LAG 330-1 Subliming Compound shall be applied in conformance with good paint-ing practices. The surface shall be dry, above 40'F and below the dew point.

METHOD OF APPLICATION: May be applied by airless spray, air atomiz-ing spray, brushing, rolling or caulking gun.

RECOMMENDED SPRAY EQUIPMENT: For spray application direct from the

'shipping container, air-ram (45:1' 10:1 compression ratio) extrusion pump, airless. spray or air atomizing spray equipment should be used.

form Aooroved Fornr No. LSB-DOSE Budpel Bureeu NO. Se.RI3BT Msy l 969 Approvst Esprres Aprrl 30, ~

. ~ r I U.S. DKI'AIITMKNT.OF I.ABOR WAGE'AND LABOR STANDARDS ADMINISTRATION Bureau of Labor Standards MATERIAL SAFETY DATA SHEET SECTION I MANUFACTURER S NAME EMERGENCY TELEPHONE No, 4>> 2- 42 ADDRESS(IYusr er, Sttccti itr, State, ond ZIP Code) 9 CHEMICAL NAME ANO SYNONYMS TRADE NAME ANO SYNONYMS t T ERM -LAG 330-CHEMICALSAMILY fORMVLA Fire Retardant Coatin SECTION. II . HAZARDOUS INGRED IENTS

.";".AIHTS, PRESERYATIYES, a SOLYEHTS .TLY ALLOYS AHD METALLICCOATIHGS TLY (Units) (Units)

PIGMENTs S f lica volu LBASE METAL A " "~(See OSHA 29CFR $ 910.100 T LE Z- )ALLOYS VEHICLE METALLIC COATINGS'ILLER SOLVENTS METAL PLUS COATING OR COIIE FLUX ADDITIVES ppm OTHERS OTHERS HAZARDOUS MIXTURES OF OTHER I.IQUIDS, SOLIDS, OR GASES TLY (Units) r SECTION III PHYSICAL DATA c pe BOILING POINT I'Fe) SPECIFIC GRAVITY IHEO= II v Abou 1.25

'APOR PRESSURE Invn Hp,) ater PERCENT VOLATILE BY VOLUME (VI 41 VAI'Oh DENSITY IAIR I) ater, I

EyAPORATION RATE I = II Mater SOLUBILITY IN WATER iscible APPEARANcE AND oooR . ghj,te Mastic <<No appreciable Odor SECTION IV FIRE AND EXPLOSION HAZARD DATA FLASH POINT IMettrod used) FLAMMABLELIIHITS Lel EXTINGUISHING MEDIA SPECIAL FIRE FIGHTING PROCEDURES UNUSUAL FIRE ANO EXPLOSIOV HAZARDS decomposition.

THRKSHOLO LIMIT VALUE Hone established. See OSHA 29GFR 1910r1000 Table Z3 t'F F ECTS OF OVEREXPOSURE When s ra in or sandin re eated inhalation of res irable free 4

silica dust may cause delayed lung in)ury.

EMERGKNCY ANQ FIRST Alo PROCKOURES F s Clan SKIN: Wash with mild soap and water INHALATION: Remove to fresh air.

INGESTION: Induce vomiting 'and call a SECTION Vl REACTtYITY DATA:i':

STABILITY CONOITIONS TO AVOIO UNSTABLE STABLE INCQMPATABILITY(NaIatialt Ia avaidJ NONE HA~AROQUsotcoM osITIoN mooucTs Hydrogen Chloride, carbon Nonoxide CONQITIONS To AVOIO HAZARQOUS MAY OCCUR POLYMERIEATION WILL NOT OCCUR

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SECTION Vll SPILL OR LEAK PROCEDURES

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Remove to sanitary landfill. Dispose of in accordance with Federal, State and local regulations regarding, pollution.

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SECTION VIII SPECIAL PROTECT'ION INFCNATION RESPIRAIRY PROTECTION (S P Cei/T IvpaJ en s ra in Qr sand N OSH a r v LOCAL KXHAI'ST SPECIAL VENTILATION Normal ventilatio MECMANICAI.<Ceaeraii OTHER PROTt'CTIVt'LOVES Evf I ROTtCI ION Water im ervious OTHKR PROTECTIVE EQUIPMKNT SECTION IX SPECIAL PRECAUTIONS PRECAUTIONS TO BE TAKEN IN H4NOLING ANQ STORING Close containers after usin Store above 32'F and below 100'F.

OTHER GREC uTiobS Avoca prolonged contact with skin. Do Not Take Internally.

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THERMO-LAG 350 TWO PART SPILL RESISTANCE TOPCOAT DATA SHEET PRODUCT DESCRIPTION: THERMO-LAG 350 is a two part spill resistant topcoat with a formulation designed to provide chemical and corrosion resistance to protect against abrasion, moisture, corrosive fumes,and chemical contact.

PHYSICAL PROPERTIES:

Color: White Finish- Gloss Solids by Volume: 34.0 + 1.0X Mixed Theoretical Coverage: 50 Sq. Ft Per Gallon Mixing Ratio By Volume: Part A - 4 To Part B - 1 Net Weight Per Gallon: 10.93 + 0.20 lbs (Mixed)

Storage Temperature: Kinimum - 35'F Maximum - 120'F Protect'rom freezing. In cold weather, store materials inside above 60'F until use.

Shelf Life: 6 Months at recommended storage temperatures.

Flash Point: Above 135'F Pot Life: 10 hours at 60 F 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months at 77 F 4 hours at 100'F Surface Temperature: Minimum - 40'F Maximum - 120'F Thinning: Use clean water. For air spray thin up to 10X; airless spray, brush or roller, up to 5X.

o Telex: 44-2384 TSI, INC. o 3260 8RANNON AVE. o ST. LOUIS, MO. 63139 o (314) 352-8422

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THERMO-LAG 350 TWO PART SPILL .RESISTANCE TOPCOAT DATA SHEET CONTINUED CHEMICAL RESISTANCE:

FRE VENT CONTACT OCCASIONAL CONTACT Alkali Solutions Fresh Water Organic Acids Alcohols Waste Water Mineral Acids

'Aliphatic Hydrocarbons Mineral Oils Oxidizing Agents Aromatic Hydrocarbons Vegetable Oils Ketones Salt Solutions BASIC USE: Especially formulated to provide compatibility when used in the THERMO-LAG 330-1 Subliming Material System. THERMO-LAG 350 Two Part Water Based Spill Resistant Topcoat provides excellent protection against water fl'ow, climatic variations, chemical attack and physical abuse.

This material has been tested in accord with ASTM E84 Standards by an independent testing laboratory with the following results:

Flame Spread: 5 Fuel Contributed: 0 Smoke Developed: 0 PACKAGED: 5 Gallon Kits consisting of one short filled 5 gallon pail of Part A and a one gallon can of Part B.

THERMO-LAG 350 TWO PART SPILL RESISTANT TOPCOAT DATA SHEET CONTINUED SURFACE PREPARATION: The surface should be clean, free of loose and foreign contaminants and dry: at least 5 F above the dew point.

Moisture meter readings, using a Delmhorst Moisture Meter, Model DP must be taken and readings of 20 or less must be obtained pr'ior to the topcoat being applied.

MIXING: Stir contents of Part A, making sure no pigment remains on the bottom of the pail. Add Part B (1 gallon container) to Part A (5 gallon pail).

Mix with a power mixer until the two components are thoroughly blended.

Do not use mixed material beyond pot life limits.

METHOD OF APPLICATION: Application can be made by spray, roller or brushing. A criss/cross application technique is recommended to help achieve pin-hole free coverage.

APPLICATION EQUIPMENT:

Brush: Use Nylon or synethetic bristle brushes.

Rollers: Use short nap synthetic rollers for smooth surfaces.

Use long nap synethetic rollers for rough surfaces.

THERMO-LAG 350 TWO- PART SPILL RESISTANT TOPCOAT DATA SHEET CONTINUED APPLICATION EQUIPMENT:

A' Fluid

~Ti Air

~Ca Air Hose 1D

'at'1 Hose ID Atomizing Pressur'e Pot Pressure DeVilbiss E 2 or 5/16" 3/8"75-100 10-20 MBC or JGA 78 or or ps 3. psi or equal 3/8ts 1/2 NOTE: Low ambient temperature applications or longer hoses require higher pot pressure.

For Airless S ra Material Hose Manifold 0 Atomizin Pressure "

ID Filter

0. 015" to 0. 019" 2700-3000 psi'/4" or 3/8" 60 mesh NOTE: Use appropriate tip and atomizing pressure for equipment, appl'icator technique and weather conditions.

DRYING TIME AT 75'F: THERMO-LAG 350 Two Part Water Based Spill Resistant Topcoat dries to touch in approximately 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ; to handle in approximately 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months . Allow to dry for at 1east seven days before exposure to immersion service. Drying time will vary on ambient temperatures and relative humidity.

CLEAN UP: Clean all equipment immediately after use with water, followed by a final washing with xylol or No. 8 Thinner.

>rm Approved Form No. LSS-DOSE Svdpet Rvresv NO. Se-R13BT Msy-I 969 Approvsl Exorres Aprrl 30, 19)I U.S. DEPARTMENT OF LA80R WAGE AND LABOR STANDARDS ADMINISTRATION Bureau of Labor Standards MATERIAL SAFETY DATA SHEET SECTION I MANUF+lglER'SHAME EMERGENCY,TELEPHONE NO.

ADOREgggbec Street, ity, Stow ond ZIP Code J erannon Av'e.

TRADE NAME ANO SYNONYMS THERMO-LAG 350 Resistant Topcoat

"'t9>,=-.: ',' ..':.:: : ';"', SECTION II HAZARDOUS INGREDIENTS PAINTS, PRESERVATIVES, d SOLVENTS TLV ALLOYS AHO METALLIC COATINGS TLV IUnits) (Units)

P I GLIENTS BASE METAL CATALYST ALLOYS VEHICLE METALLIC COATINGS 20 25ppy SOLVENTS 5 25pp F ILLER METAL PLUS COATING OR CORE FLUX ADDITIVES OTHERS OTHERS HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES TLV (Units)

SECTION III PHYSICAL DATA SOILING POINT PFel 311SF SPECIFIC GRAVITY IH30- II

1. 30 VAPOR PRESSURE (mm Hyol PERCENT VOLATILE SV VOLUME I4l 34%

VAPOR DENSITY IAIR- I)

.02 SOLUBILITY IN WATER 0mlO APPE*RANGEANDooo

~ite paint]ike ArOmatiC SOI.Vent OdOr SECTION IV FIRE AND EXPLOSION HAZARD DATA FLASH POINT IMetrrpd rrSedl FLAMMABLc LIMaTS I.e I

+135 F TCC ExTINGUIBHING MEDIA CP E+tin~is} ers SPECIAL FIRE FIGHTING PROCEOU ES UNUSUAL FIRE ANO EXPLOSION trAZAROS

THRESHOLD LIMIT VALUE or re eated contact-irritation EFF ECTS OF OVEREXPOSURF olon ed may occur.

Flush with water and get medical attention..

- AIQ EMERGENCY ANO FIRST PROCEDURES E es In estion - Do Not induce vomiting - Call physician

>>>>gl '>> < v>>< vl >> ~

m ..',",:.'i "'.",- ":;",:,; SECTION Vl REACTIVITYDATA '"

STAB ILI TY CONOITIOHS 'to AVOID

<UNSTABLE.

STABLE IHCOMPATABILITY(NoIcrinls to avbidJ HAZARDOUS DECOMPOSITION PRODUCTS CONOITIOHS,TQ AVOID HAZARDOUS MAY OCCUR POLYMERIZATION WILL'NOT OCCUR

~ u v< v<< ~ <, < The<>> ~

SECTION Vll SPILL OR LEAK PRSXDUm STEPS TO BE ills -

tAKEN IN CASE MAtERIAL IS RELEASEO wi e u OR SPILLEO mo u -or'oak u immediatel WASTE DISPOSAL METHOD Sanitary Landfill p ~ ~

SECTION Vill SPECIAL PROTECTlON INFemIATION

'"Q"c"Q"'"/"'""'es irators for Aromatic Solvents LOCAL EXHAUST SI'ECIAL VfNTILATIOH MECMANICAL(CcnctoIf, ' <;

. ~

OTHER PROTECTIVE GLOVES Yes Erf I'ROTECTION Yes OTHER PRQtf C T IVf EQUIPMfHT L ~ J ~ ( + < -~ '

SECTION m . SPECIAL PRECAUTIONS PRECAUTIONS TQ Bf TAKEN IH HANDLING AHO StORING Above 32'F 32 anddB1 Below 120 "20FF OreER PRECAUtIONS kAk>> <'>> ~ v

THERMO-LAG STRESS SKIN TYPE 330-69 DATA SHEET PRODUCT DESCRIPTION: THERMO-LAG Stress Skin Type 330-69 is comprised of an open weave, self stiffened steel mesh used to provide an enclosure over cables, cable trays, and cable drops and, provide an easily accessible refurbishment of surfaces which possess adequate characteristics to receive the THERMO-LAG 330-1 Subliming Material System.

THERMO-LAG Stress Skin Type 330-69 is inherently resistant to differential thermal expansion, thermal stress, flutter, -vibration and other type of loading potentially resultant from earthquake conditions.

PHYSICAL PROPERTIES: THERMO-LAG Stress Skin Type 330-69 shall be comprised of an open weave, self stiffened steel mesh to meet the following characteristics:

Strand Diameter: 0.019 Minimum Mesh Size: 64 Minimum Weight/Sq. Yd: 1. 75 Minimum Type "V" Stiffeners 'dimensions:

Height: .29 + 0.04 Inches Base: .29 + 0.04 Inches Distance Between: 6 + 1 Inches CHEMICAL PROPERTIES: THERMO-LAG Stress Skin Type 330-69 is chemically treated to provide reliable long lasting corrosion inhibiting properties; TSI, INC. ~ 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 t314) 352-8422 ~ Telex: 44-2384

I I

THERMO-LAG STRESS SKIN TYPE 330-69 DATA SHEET CONTINUED BASIC USE: THERMO-LAG Stress Skin Type 330-69 shall be installed in such a manner as to provide a complete and continuous wrap over all areas to receive. the THERMO-LAG 330-1 Subliming Material

'ystem, with the exception of junction boxes and structural support entities.

SURFACE PREPARATION: Prior to use, the substrate should be clean, free of loose dirt, grease and other contaminants. No special surface preparation is required.

METHOD OF APPLICATION: Best results are obtained if each individual length of each individual section does not exceed 10 feet.

Each section should overlap each pre-ceding section by at least 6 inches or fastened to the prec~2ing and following.

section by a flange facsimile having a 1 inch lip, minimum. Circumferentially, two sections are preferred. The skin shall be tight and all flanges and butt joints properly fastened. The sections should be secured to each other by using approved mechanical fasteners. The maximum distance between fasteners should be 6 inches.

I THERMO-LAG 330-70 CONFORMABLE CERAMIC INSULATOR DATA SHEET PRODUCT DESCRIPTION: THERMO-LAG 330-70 Conformable Ceramic Insulator is a light weight and flexible ceramic blanket. It is manufactured from long ceramic fibers.

There are no binders added to the THERMO-LAG 330-70 Conformable Ceramic Insulator. It is a highly efficient material having low specific heat, excellent resistance to thermal and mechanical shock.

PHYSICAL PROPERTIES:

Color: White

Continuous Use Limit: 1260 'C (2300 'F)

Melting Point: 1760'C(3200'F)

Fiber Diameter: 2-3 microns(mean)

Specific Heat at 1093'C(2000'F): 1130 J/kg'C(.27 Btu/lb/'F)

Specific Gravity: 2.73 g/cm3

The Continuous Use Limit is determined by irreversible linear change criteria not product melting point.

TSI, INC. 4 3260 BRANNON AVE. ~ ST. LOUIS, MO. 63139 4 t314) 352-8422 4 Telex: 44-2384

I I

THERMO-LAG 330-70 CONFORMABLE CERAMIC INSULATOR DATA SHEET CONTINUED CHEMICAL PROPERTIES:

Aluminum Oxide: . 48. 0% Silicone Dioxide 51.8%

Iron Oxide: 0. 04% Titanium Dioxide: 0.002%

Magnesium Oxide: 0.01% Calcium Oxide: 0.02%

Sodium Oxide: 0.1%

Leachable Chlorides: Less Than 10 ppm BASIC USE: THERMO-LAG 330-70 Conformable Ceramic Insulator is used for insulation en-hancement of temperature sensitive components and is designed to provide equal compatibility, efficiency and greater heat resistance when used in concert with THERMO-LAG 330-1 Subliming Material System.

SURFACE PREPARATION: No special surface preparation is required.

METHOD OF APPLICATION: THERMO-LAG 330-70 Conformable Ceramic Insulator shall-be wrapped in such a manner as to be complete and continuous with no gaps or holes. When the application o'f the THERMO-LAG Stress Skin Type 330-69 and THERMO-LAG 330-70 Conformable Ceramic Insulator is complete, a "cacoon" effect should be present.

STORAGE: THERMO-LAG 330-70 Conformable Ceramic Insulator should be kept in its containers sealed when not in use. Store off the ground.-

FIBERGLASS ARMORING DATA SHEET PRODUCT DESCRIPTION: The Fiberglass Armoring is a light weight, electrical glass armoring fabric for use with the THERMO-LAG 330-1 Subliming Material System.

PHYSICAL PROPERTIES:

Color: White Finish: Matte Type: "E" Type Fiberglass Fabric Ounce/Sq. Yd. 1.0 + 0.2 Thickness (Inches): 0.005 + 0.001

Tensile Strength (lbs/in): Warp: 75 Fill: 60 Yarn: Warp: 150-1/0 -

Fill: 150-1/0 Knit: Weave Type Temperature of Decomposition: circa 1600'F

Minimum average breaking strength pounds per inch (ASTM Method 578-49).

BASIC USE: The Fiberglass Armoring is specially provided for use in connection with the THERMO-LAG 330-1 Subliming Material System. It provides a strong mechanical base or armoring as requir'ed for field application for the intended use.

TSI, INC. o 3260 BRANNON AVE. o ST. LOUIS, MO. 63139 o (314) 352-8422 o Telex: 44-2384

I I

I

ENGINEERING REPORT ON ONE - HOUR ASTM-E-119 FIRE SIMULATION FACILITY FIRE TEST FOLLOWED BY A SHORT TERM WATER HOSE STREAM IMPACT TEST ON A NUCLEAR FACILITY CLASS 1E CABLE TRAY, CONDUITS 'AND AIR DROP ASSEMBLY Prepared for TSI, INC.

3260 BRANNON AVENUE t

ST. LOUIS, MO 63139 And Associates, Inc.

By'esson P. 0. Box 1082 Norman, Oklahoina 73070 (August 1981)

WzssoN hND AssoclhTES, IN

TABLE OP CONTENTS E

'ECTION 'AGE NO.

LIST OP P IGURES o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ i ~ ~ ~ o ii LIST OF TABLES ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o' ~ ~ ~ ~ ~ ~ ~ o iv I ~ INTRODUCTION ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1 IIo TEST PROCEDURESos ~ ~ s ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ot ~ ~ ~ ~ 2

a. One Hour Fire Test ......................" " " .".. "~ . 2 b Water Hose Stream Test .........'"-.."." .."."" " . 2 co Electrical Circuitry Continuity Tests o o ~ o ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 5 III 0 TEST SPECIMEN I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ 7

a. Preparation of Test Specimen............................ ~.... ~ . 7

b. Test Specimen Physical Details ..... ~ .. ~ ". ." ~ .. " ~ ~ "" 7

c. Verification of Subliming Coating Envelope Thickness..........'. 13 IVo PIRE TEST INSTRUMENTATIONe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ s ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ Q V. FIRE TEST OBSERVATIONS ... . ~ . . .~ . ~ ~ . ~ ~ ~ . " ~ . ~ .. ..~ ~ 17

a. Details of Pire Test.... ~ .. .............. . .. . ~ .

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ... 17

b. Visual Observations Made During The Pire Test.. ... . " ~ 17

c. Details of the Water Hose Stream Test. " " ". "

. . . . .. " . 19

d. Visual Observations Made During the Water Hose Stream Test . ~ 19 VIo RESULTS OP PIRE TESTo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ use' ~ ~ ~ ~ . ~ 22 VII RESULTS OP WATER HOSE STREAM TEST. ~ ~ ~ ~ ~ ~ ~ . ~ ~ ~ ~ ~ .~ " ~ ~ ~ ~ 26 VIII. CONCLUSIONS AND OBSERVATIONS. ~ ~ .... ..... ~ . " .~ . .~~ ~ .~.~ . 26 IX. 38 X. EXHIBITS: 1. TSI Technical Note 80181, "TfEZRO-LAG 330-1 Subliming Coating Envelope System Application Procedures, dated 8/81.

2. ANI/MAERP STANDARD FIRE ENDURANCE TEST METHOD TO QUALIFY h PROTECTIVE ENVELOPE FOR CLASS 1E ELECTRICAL CIRCUITS (NOT DATED)

3. Copy of Original Honeywell-Brown Chart Recording of Thexmocouples Installed Inside the TSI Cable Tray, Conduits, and Air Drop Test Specimen, dated 7 August 1981.

WZSSOX aXO ASSOCIATES, IX

LIST OF FIGURES FIGURE FIGURE TITLE PAGE NO.

ASTM -E- 119 TEST METHOD TIME-TEMPERATURE RELATIONSHIP ~ ~

ASTM - E - 119 TEST METHOD FIRE TEST SET-UP INCIDENT HEAT FLUX LEVEL AS A FUNCTION OF FIRE DURATION/EXPOSURE TIME Test Specimen Cable Tray Assembly Cable Integrity Monitorxng Circuits .......................................-......

Typical Sample of Thermo-Lag 330-1 Subliming Coating Envelope System for Cable Tray Protection Before Installation Around Cable Tray Schematic Illustration of the Test Specimen Cable Tray Assembly Before Installation of the Thermo-Lag 330-1 Subliming Coating Envelope System Photograph of the Test Specimen Cable Tray Assembly with the Thermo-Lag 330-1 Subliming Coating Envelope System Installed Except for the Air Drop Cable Photograph of Test Specimen Cable Tray and Air Drop Assembly Fully Protected with the Thermo-Lag 330-1 Subliming Coating En velope System ~ ~ ~ ' ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ y ~ ~ ~ ~ ~ ~ ~ ~ ~ 12 Location of Test Thermocouples in the Cable Tray and Air Drop Test Assembly .....o.o......o...........oo.-.......o.......oo.o. 14 Comparison of the Required ASTM-E-119 Test Method Time-Temperature Hi.story with Actual Measurements During the One Hour ASTM-E-119 Test on the Thermo-Lag 330-1 Subliming Coating Envelope System for a Cable Tray&ondui.t and Air Drop 16 of Test Cable Tray and Air Drop Assembly and Assembly'hotograph Te st Instrumentation o ~ ~ o ~ ~ ~ oo ~ o ~ ~ ~ o ~ ~ ooooo ~ ~ 0 ~ ~ ~ 0 ~ ~ tt ~ oooolooo ~ 18 10 Photograph of Cable Tray and Air Drop Test Assembly After 65-Minutes of Exposure to the TSI ASTM-E-119 Fire Simulation Facility 20 Photograph of Class "A" 1250 GPM Wat'er Pumper Used for the Water Hose Stream Test on the Fire Exposed Cable Tray Test Specimen ... 21 12 TSZ AS%8-E-119 FIRE SIMULATION FACILITY: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System for a Cable Tray&onduits and Air Drop Assembly: Response Characteristics of Electrical Cable Coverings ................ ~ .. ~ ~ ~ ....... ~ .. 23 13 TSZ ASTM-E-119 F1RE SIMULATION FACILITY: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System For a Cable TrayWonduits and Air Drop Assembly: Response Characteristics of Electrical Cable Coverings 24 WEssoN AND AssocIATES, Iwc.

LIST OF FIGURES (Continued)

FIGURE RUNNER FIGURE TITLE PAGE NO.

14 TSI ASTM-E-119 FIRE SIMUIATION FACILITY: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System for 'a Cable .

Tray-Conduit=-and Air Drop Assembly: Response Characteristics of Electrical Cable Surface Coverings 25 15 TSZ ASTM-E-119 FIRE SIMULATION FACILITY: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System for a Cable Tray-Conduit and Air,Drop Assembly: Response Characteristi.cs of Electxical Cables in the "Air Drop Section" 27 16 TSI ASTM-E-119 FIRE SIMULATION FACILITY: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System for' Cable Tray-Conduit and Air Drop Assembly: Response Characterisitcs of Cable Tray Surface and Ambient Air Temperatures 28 17 Photograph of Water Stream Being Applied to the Cable Tray, Conduit and Ai'r Drop Assembly After Exposure to the One Hour Fire Test with a 14 .Inch Diameter Hose Line from a Class "A" 1 250 GPM Pumper Truck 29 18 Close-Up of the Contact of the lb Inch Diameter, 15 Degree Angle Dispersed Water Stream with the Cable Tray, Conduit and Air Drop Assembly Test Specimen 30 19 Close-Up of Energized Cable Integrity Monitoring Circuit Display, Panel Immediately Following the Water Hose Stream Test, on a Pire Tested Cable Tray', Conduit and Air Drop Assembly ............... 31 20 Photograph of the Thermo-Lag 330-1 Subliming Coating Envelope System. Protected Cable Tray, Conduits and Air Drop Test Assembly Following the One Hour Pire Test and Water Hose Stxeam Test 33 21 Photograph of the TSI Cable Tray, Conduits and Aii Drop Test Specimen with Portions of the Protective Covering Removed 34 22 Photograph of-the Interior Surface of the Cable Tray, Condui.ts and Air Drop Test Specimen Thermo-Lag 330-1 Subliming Coating Envelope S Ystem After the One Hour Fire Test and Water Hose S tream Test 35 23 Photograph of a Section of Electrical Cable Being Removed from a Cable Bundle in the TSI Cable Tray, Conduits and Air Drop Test Specimen After a One Hour Fire Test and Water Hose Stream Test .. 36 Photograph of the Interior of an Electrical Cable in the TSI Cable Tray, Conduits and Air Drop Test Specimen After The One Hour Pire Test and the Water Hose Stxeam Impingement Test .....,. 37

-iii-WESSON AND ASSOCIATES, INC.

LIST OP TABLES TABLE NBSER TABLE TITLE PAGE HO.

I Identification of Cables in Cable Tra and Air Drop Test 8

Specimen ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

D Location of Test Thermocoup1es ..;........................ " .. 15

-iv-WZSSDN ~ ASSOCuTES, ht

ONE HOUR ASTM-B-119 FIRE SIMULATI(N FACILITY FIRE TEST FOLL@MD BY A SBORT TERM MATER HOSE STRE'JQC IMPACT TEST ON A NUCLEAR FACILITY CLASS 1B CABLE TRAYS CONDUIT AND AIR DROP ASSEMBLY Ia INTRODUCTION the basic jauposes of this Engineexing Test Report are to present and dis-cuss the'ag~iaental results obtained free a 'One&our'SXH-8-119 Fir>> Test-an& Mater Bose Stream Impact Test on a Thermo-Lag 330-1 Subliming Coating Envelope Systca for a Nuclear Plant Class 1B electrical circuits installed in a Ladder hack Cable Tray and Air Drop Assembly.

According to the manufacturer (TSI~ Inc.); all of the fixe and water hose C

stream tested Thezmo-Lag 330-1 Subliidng Coating. Envelope System materials were aanufactuxed and produced in strict accordance with all of the applicable Quality Control and Quality Assurance Requirements presented in Appendix

'h'o BTP-9.5.-1t NRC Suppleaental Guidance, Nuclear Plant Fixe Prote'ction Functional Responsibilities, hdministxative Controls and Quality*Assurance (see Reference'1').

Also, accoxding to the aamxfacturer of the Thezmo-Lag 330-1 Subliming Coating Envelope System (TSI, Inc.) the Envelope SystesL utilized for the testing as re-ported herein was prepared in strict canpliance with the 7lpplication,procedures as presented in Exhibit '1'o. this Engineering Test Report.

/

The Nuclear'Plant Class 1 B Cable Tra + Conduit 'and Air Assembl success-full ssed all of the a licable Desi Perfonnance'nd rational Criteria s ifed in the a'icable sections of ANI/HAERP Standazd Fire Enchxrance'Tie'st method to alif a Protective for Class 1B Electrical'Circuits and the Nuclear lato ssion 10 CFR Part 50 Fire Protection ram for Nucle an s dated 19 November 1980 Final Rule.

WBSSON um ASSOCm~ IZ

II- TEST PROCEDURES The Test Procedures involved in the Test Program reported herein specified the use of 'Specific'rocedures for the One-Hour Fire Test, the Water Hose Stream Test and the Cable Tray Assembly Electrical Circuitry Continuity Tests. Each of these three (3) separate Test Procedures are summarized in the following sub-sections.

A. One-Hour Fire Tests The Fire Testing Procedures are specified in Paragraph 3.4.1 of ANX/MAERP Standard Fire Endurance Test. Method to Qualify a Protective Envelope for Class 1E Electrical Circuits (see Exhibit 2 to this report). Basically this one-hour Fire Test is a one hour exposure to the temperature-time curve of ASTM-E-119-76 (ANSI A2.1) . For ease of reference, Figure 1 presents this ASTM-E-119-76 Time-Temperature Curve for the exposure period of interest.

As shown in Figure 1, the Test Set-Up Internal Air Temperature starts at the prevailing ambient air temperature (Test Room'emperature), reaches a temp-erature of about 1000 F after five (5) minutes, a temperature of about 1550 F after 30 minutes and a temperature of 1700 0F after one-hour. Based upon widely accepted crtieria, this variation in the time-temperature curve also means a variation in the Incident Heat Flux upon any 'Target'xposed to the this time-temperature relationship. It is commonly accepted that the One-Hour ASTM-E-119 Test Method produces a 'Time Averaged Incident Heat Flux'f about 24,500 2 2 BTU/HR-FT for one-hour's exposure, 34,500 BTU/hr-ft for two hours exposure, 2

and 42,000 BTU/hr-ft for three hours exposure, as is shown in Figure 2. It is also important to note, for subsequent experimental data analyses, that in the ASTM-E-119 Test Method about 20 percent of the heat transfer is by con-vection and about 80 percent is by radiation. Thus, the actual amount of the 80 percent radiant heat that will be 'absorbed'y the 'Target's strongly dependent upon the Target's Radiation View Factor, .the spectral emissive properties of the natural gas flames and the spectral reflectance .propertie's of the Thermo-Lag 330-1 Subliming Coating Envelope System external surface.

B. 'Water Hose Stream Tests The Water Hose Stream Test Procedures are specified in Paragraph 3.4.2 of ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective Envelope ESSON AND ASSOCIATES~ INC+

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FIGURE 2s ASTM -E 119 TEST METHOD FIRE TEST SET-UP INCIDENT HEAT FLUX LEVEL AS A FUNCTION OF FIRE DURATION/EXPOSURE TIME I

50 W

0

~ 40 TIME AVERAGED'INCIDENT HEAT FLUXES 1

ONE HOUR EXPOSUREs 24<500 BTU/hr ft2 30 TWO HOUR EXPOSUREs 34g500 THREE HOUR EXPOSUREs 42i000 20 A

M u

10 0 60 120 180

for Class 1E Electrical Circuits (see Exhibit 2 to this report). This'xhibit permits the use of 'one'f 'three'pecific Test Procedures. In the Water Hose Stream Test reported here'in, the Test Procedures specifiec by Paragraph 3.4.2 (3) was utilized. This procedures is as follows:

"The stream shall be delivered th'rough a 14 inch nozzle set at a discharge o

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 feet from the system."

This procedure also requires that the hose stream be applied (to the system) for a minimum of 29 minutes.

C. Electrical Circuit Continuit Tests; Paragraph 3.5 of AMI/MAERP Standard Pire Endurance Test Method to Qualify a Protective Envelope for Class IE Electrical Circuits (see Exhibit 2 to this report) requires the following Criteria be meet for the one-hour Pire Test:

"3.5 The tests shall be constituted a failure if any of the following occur!

1. Circuits fail or fault during the fire test as required in Test 1 -(ASTM-E-119-76 one-hour exposure test) or fail during the hose stream test."

Thus, one of the required test conditions is to continuously monitor a sufficient number of electrical circuits in'.the Test Specimen to detect failure circuit to circuit (conductor to conductor short circuits)g circuit to system (conductor continuity)g and circuit to ground (short circuits, conductors to ground) . Monitoring all of the conductors in the Cable Tray, Conduit and Air Drop Test Assembly would be a very arduous, if not impractical, task. There-fore, selected cables in the Test Specimen Cable Tray Assembly were instru-mented to monitor each of the following three parametersc

1. Two cables, one power and one control cable in the Test Specimen Cable Tray Assembly was connected to a short circuit detection circuit as shown in Figure 3-A.

2. Two cables, as identified in C.l above, was also connected to a continuity monitoring circuit as shown in Figure 3-B.

3. Two cables, as identified in C.l above, was connected to a ground short cir-cuit detection circuit as shown in Figure 3M.

This procedure gives a total of six (6) instrumented 'cables in the Test Specimen Cable Tray Assembly for monitroing of cable integrity during both the one>>hour Fire. Test and the subsequent Water Hose Stream Test.

<<5<<

TypicaL Cable I

+

24VDC Signai C

I h Typical Circuit to Circuit Monitoring Charm I

+

24VDC t

'A b Typical Circuit to System Monitor~ Channel 24VDC Signal c M C - Typical- Circuit to Grc~ Monitoring Channel PIGURE 3a Test Specimen Cable Tray Assembly Cable Integrity Honitori,ng Circuits

XII TEST SPECIMEN A Pre aration of Test S ecimen Protective Envelo ec Suggested Test Specimen Layouts are presented in ANIfHAERP Standard Pire Endurance Test gtethad to Qualify a Protective. Envelope for Class 1E Electrical Circuits (see Exhibit.2 to this report). In this sectian af the Test Report, ve vill sumaarize the manufacturer's preparation of the Cable Tray Conduit and Air Drop Assembly Thermo-Lag 330-1 Subliming Coating Envelope System.

As explained in detail in Exhibit 1 to this report> the protective envelope consists of 'clam shell arrangement'hich fits all-around the Test Specimen Cable Tray Assembly. This envelope consists of an inner layer of Therma-Lag Stress Skin Type 330-69' 0.625 inch vet (0.469 inch dry, 25 percent shrinkage in airless. sprayed vet Thermo-Lag 330-1 coating) covering af Thermo-Lag 330-1 Subliming Coating material, a outer covering of light veight Piberglass Cloth Armoring and a thin top coat of Thermo-Lag 330-1 Subliming Coating material af sufficient thickness to gust cover the Fiberglass Armoring. The detail pre>>

paration and Thermo-Lag 330-1 Subliming Coating material Application Procedures are presented in Exhibit 1 to this report. A typical clam shell section of the Thermo-Lag 330-1 Subliming Coating Envelope System, prior ta installation

~

around the Test Specimen Cable Tray Assembly is":shmcn in Pigure 4,,

B. Test S cimen Ph sical Detai.lsd As shown by Figure 5, the Test Specimen Cable Tray is a standard 14 inch vide by 44 inch high Ladder Back Electrical Cable Tray fabricated in the form of a U-Bend, vith the. dimensions being 36 inches long by 32 inches high. A single cable 'air drap's also incorporated in the Test Specimen. A total of 27 cables are installed in the Test Specimen Cable Tray Assembly (See Table I for individual electrical cable indentification).

Figure 6 presents a photograph of the Test Specimen Cable Tray Assembly vith the Thermo-Lag 330-1 Subliming Coating Envelope System installed on all portions of the Cable Tray vith the exception of the 'air drop'able. Pigure 6 also shows the leads of the thermocouples installed vithin the Test Specimen Cable Tray Assembly for monitoring of various items during the one-hour Fire Test. A photograph of the completed Test Specimen, mounted for insertion into the TSI ASTM-E-119 Fire Simulation Facility is presented in Figure 7. In this photograph, the 'air drop'able has had the Thermo-Lag 330-1 Subliming Coating Envelope System added to the air drop cable.

ESSON hND ASSOcmrZS, INC I

NOTE: THERttO-LAG STRESS SKIN TYPE 330"69 IS PLACED NEXT TO CABLL'f'AY (NON-FIRE EXPOSED SIDE)

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.THERxiO-LAG STRI SS SKIN TYPF. 330-Ci9 THERMO"LAG 330-1 SUBLI."'iING COATItlb 2 ~

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SYSTEM FOR ChliLE TRAY PROTECTION iiEFORE INSTALLATION ARC'I'ND

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TABLE I IDENTIFICATION OF CABLES IN CABLE TRAY AND AIR DROP ASSEMBLY TEST SPECIMEN CABLE NUMBER ELECTRICAL CABLE IDENTIFICATION 1 3C - W023 5 ADD7530 - ADD 7438 2 ~ I 3

4 5

6 7

8 3C - 8AW6 ITT TYPE W 90 C P122 MSHA 9 e 10 11 2C W-121 0000078 - 0000228 12 W 13 14 2C 6AW6 PR MAGENT CRANE CABLE 15 16 17 18 12C - W-045-15 07054 - 07004 19 20 21 22 23 24 25 26 27 SUM%MY: 7 Size 2C Cables 10 Size 12C Cables 10 Size 3C Cables TOTAL: 27 Electrical Cables in Ladder Back Cable Tray WESSON AND ASSOCIATES, INC+

TEST SPECIMEN CABLE TRAY WITH THE .THERMO-LAG 330-l "U" LEG SUPPORTS-NOT COATING ENVELOPE SYSTEM YET THERMALLY PROTECTED.

INSTALLED ON THE "U" PORTION ONLY AIR DROP CABLE-NOT YET fi THERMALLY PROTECTED TEST THERMOCOUPLE LEADS FIGURE 6: PHOTOGRPAH OF THE TEST'SPECIMEN CABLE TRAY ASSEMBLY WITH THE THERMO-LAG 330-l COATING ENVELOPE SYSTEM INSTALLED EXCEPT FOR THE AIR DROP CABLE fi IVESSON AVO ASSOCIATES, INC.

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I TSI ASTM-E-ll9 FIRE SINULATION FACILITY TEST SPECIHEN CABLE TRAY AND AIR DROP ASSEHBLY READY FOR INSERTION INTO TEST FACILITY FOR THE ONE-HOUR FIRE TEST FIGURE 7: PHOTOGRAPH OF TEST SPECIHEN CABLE TRAY AND AIR DROP ASSEHBLE FULLY l ROTECTED WITH rHE THERHO-LAG 330-1 SUBLIHING COATING ENVELOPE SYSTEH I

Wl:.SSOV AND ASSOClATES, INC.

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C. Verification of Sublimin Coatin Envelo e Thickness:

Using a sharp point 'penetration type" metallic gauge, the Author verified that the Thermo-Lag 330-1 Subliming Coating Envelope System varied in thi:ckness (dry film thickness) from a low of 0.460 inches to a high of 0.475 inches. This is veil within the canmercially accepted dry film thickness meaurements of + 5 percent of the naninal thickness for airless spraying techniques. In the specific case of the Test Speciment, the 'nominal dry film thickness'hould be 0.469 inches for a 'vet film thickness'f 0.625 inches.

The Author also verified that the cured surface of the Thermo-Lag '330-1 Subliming Coating Envelope System had not cracked, spalled or flaked and that it appeared to be a conventional finish for this type fireproofing material.

ZV TEST INSTRUMENTATION The Test Instrumentation consisted of the followingc

h. Twelve (12) Chranel/Alumel Thermoco'uples for measurement of cable surface temperatures, Ladder Back Cable Tray interior surface temperature and Cable Tray ambient air temperature beneath the protective envelope. The locations of the thermocouples are shown schematically in Piguxe 8. Table II presents a listing of the temperatur'e measurement for each of the twelve (12)" Test a

Thermocouples.

B. Six (6) Chrcxnel/Alumel Thermocouples were used for air temperature measure-ments inside the TSI ASTM-E-119 Fire Simulation Facility.

C. The twelve Test Specimen Thermouple readings vere recorded on a Honeywell-Brown Electronic Chart Type Recorder. This recorder has an autanatic cold reference incorporated in the recorder mechanism. Exhibit 3 presents a copy of the orig'inal temperature readings for these thezmocouples. Figure. 9 presents a ccxnparison of. the AS~-E-119 Test Method required Time-Temperature Curve with the 'maximum thermocouple reading'nd the overall average of the thexmocouple reading in, the area of the Test Specimen vithin the Test Facility. As shown, the actual ASTM-E-119 Pire Simulation Facility Time-Temperature'urv'e very slightly exceeds the requirements of the ASTM-E-119 Test Method.

For manual control of the AS'I8-E-119 Fire Simulation Facility time-temperature relationship two Omega Digital Temperature. Recorders,'odel 175 and 179, were also used. A manual reading was taken every five (5} minutes from these visual Recorders for use in the ASTM-E-119 Fire Simulation Fac'ility temperature control.

ESSON AND. ASSOCIATES, IN

8 ll 14'r 1>t g~ ~ r r.3 4 3/ '6" 8

THE RMOCOUPLE NUMBER THERMOCOUPLE LOCATION On Outside of wire

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FIGURE 8: LOCATION OF TEST THERMOCOUPLES IN THE CABLE TRAY AND AIR DROP TEST ASSEMBLY (FOR CLARITY~ ALL CABLES ARE NOT SHOWN)

--TABLE II LOCATION OF TEST THERMOCOUPLES NUMBER THERMOCOUPLE LOCATION 3C - W023.5 ADD7530 '-. ADD7438 Electrical Cable 2C - 6AW6 PR Magent Crane Cable 2C W-121 0000078 0000228 Electrical Cable 12C - W-023-5 ADD7530 ADD7438 Electrical Cable 3C - W023.5 ADD7530 ADD7438 Electrical Cable 3C - W023.5 ADD 7530 - ADD7438 Electrical Cable 3C - 8AW6 ITT TYPE 90 C P122 - MSHA Electrical Cable 3C - W023.5 ADD7530 - ADD7438 Electrical Cable Cable Tray Interior Air Temperature 10 3C .- W023.5 ADD7530 ADD7438 Air Drop Electrical Cable Ladder Back Cable Tray Interior Surface Temperature 12 3C - W023.5 ADD7530 ADD7438 Air Drop Electrical Cable NOTE: SEE FIGURE'8 FOR PHYSICAL LOCATION OF TEST THERMOCOUPLES rl W W W W W W W W W W W W W I !

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Figure 9a presents a photograph of the Cable Tray and Air Drop Test Assembly thermocouple, cable intergrity monitoring and temperature measurement recording arrangement with the Test Specimen in place in the TSI ASTM-E-119 Fire Simula-tion Facility during the course of the one-hour Fire Test.

V FIRE TEST OBSERVATIONS A. Details of the Fire Test:

The Fire Test recyxired by Exhibit 2 to this report, was conducted on 6 August 1981. The Fire Test was started at 12:20 PM and was concluded at 1:25 PM. The actual Fire Test Duration was One-Hour and Five (5) Minutes with exposure to the ASTM-E-119 Test Method Time-Temperature relationship in the TSI ASTM-E-119 Fire Simulation Facility.

The twelve (12) thermocouples used for the various electrical cable, tray.

surface and tray air temperature measurements were recorded once every 3 minutes (15 seconds between individual thermocouple readings).

B. The Author made the following visual observations during the course of the Fire Test:

1. The temperature recorders, charts and visual, were checked not less than once every five minutes.

2. After approximately 30-minutes of fire exposure, a slight yellowish'moke observed to be escaping from around. the upper horizontal leg entry of the Test Cable Tray Assembly. The location of the escaping smoke and the color of the smoke indicates that some decomposition was occurring in electrical cable coverings. However, a survey of hll of the electrical cable temperatures being measured would indicate that the cable coverings are 'below'he expected decomposition temperature. It was temporarily concluded, based upon existing cable integrity and lack of short circuits as well as the cable covering temperature measurements, that if the yellowish smoke was due to cable decomposition, then it must be occurring from some cable in direct con-tact with the Ladder Back Cable Tray metallic surface near the, upper leg connection to the ASTM-E-119 Fire Simulation Facility front face.

3. After 45 minutes of fire exposure, slight 'cracking'as observed in the Thexmo Lag 330-1 Subliming Coating Envelope System "CHAR FORMATION" on the air drop envelope and the upper horizontal leg envelope. These observations were made through the viewing windows of the Test Facility.. Such cracking in the char formation is normal and has been repeatedly observed by the Author in other Thermo-Lag 330-1 Subliming Coating fire tests on plates, Beams, etc.

-17<<

LESSON AND, ASSOCIATES, INC.

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ELECTRICAL CABLE Q>> LEADS SIMULATION THERMOCOUPLE LEADS FACILITY HONEYWELL-BROWN CABLE INTEGRITY .TEMPERATURE MONITORING RECORDER PANEL

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FIGURE 9~- PHOTOGRAPH PF TEST CABLE TRAY AND AIR DROP ASSEMBLY AND TEST INSTRUMENTATION CONFIGURATION WESSON hND ASSOCIhTES, INC

Such char formation cracking usually occurs long after sublimation of the coating an'd is felt.to be due to continued heating of the char and the re-sultant expansion of the char, a normally expected sequence of events.

Figure 10 presents a photograph of the Cable Tray Test Specimen after the removal from the ASTM-E-119 Fire Simulation Pacility. The char formation cracking, or checking, can be observed in the outer. areas of the Thermo-Lag 330-1 Subliming Coating Envelope. Howerv'er, it is important to note that the depth of this cracking or checking is limited to the char. This cracking or checking does not penetrate into the un-sublimed lower layers of the envelope system, as well be shown later in this report.

C. Details of the Water Hose Stream Teste Due to the previously noted Test Requirements for a 14 inch fire hose for conducting the Water Hose Stream Test, arrangements were made with the City of St. Louis, MO Pire Department for the use of one of their Class "A" Pire

'Pumpers for conducting the required test. Figure 11 presents a photograph of the Fire Apparatus used for the Water Hose Stieam Tests on the Cable Tray and and Air Drop Assembly following the one hour Pire Test in the TSZ ASTM-E-119 Fire Simulation Facility (Figure 10 presents a photograph of this Test Specimen being taken outside the TSI Buildings for this water hose test).

Por the Water Hose Stream Test, as required by Exhibit 2 to this report> the following conditions were used:

1. Pump discharge setting: 90 psig

2. 100 feet of 14 inch diameter fire hose with a 15 inch Akron Brass Adjustable stream nozzle. Nozzle set at 15 degrees 'angle for the test with the nozzle operator (a Pire Department employee) set at 10 feet from the Fire Exposed Test Specimen.

3. The pump discharge setting, the 100 feet of 14 inch diameter fire hose and the 14 inch diameter discharge nozzle resulted in a water flow rate and stream angle which exceeds the minimum requirements, of the Water Hose Stream Test trequired water flow rate is only 75 GPM, the actual test water flow rate was close to 95 GPM).

D. Visual Observations Made During the Water Hose Stream Test:

1. The Water Hose Stream Test was conducted on 7 August 1981. The actual water stream impac't test was started at 2:30 PM and was stopped at 2:33 PM. -The water Stream Test duration was 3 minutes, as.compared'to the required 2b minute m inimum.

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1250 GPM, CLASS "A" PUMPER: 500 GALLON WATER BOOSTER TANK FIGURE ll: PHOTOGRAPH OF CLASS "A" 1250 GPM WATER PUMPER USED FOR THE WATER HOSE STREAM TEST ON THE FIRE EXPOSED CABLE TRAY TEST 'SPECIMEN ESSOA AND ASSOClATES, INC.

2. -The 15 degree dispersed water stream did not have any 'material'ffect upon the physical integrity of the Thermo-Lag 330-'1 Subliming Coating Envelope System or its char formation. In fact to .dislodge the char formation, it was necessary to use a high velocity solid cone straight stream water hose pattern. Although this solid cone water stream .did dislodge some of the char .

formation, it did not adversely effect the unsublimed coating layers.

VX RESULTS OF PIRE TEST Acco'rding to the requirements of Exhibit 2 to this report> the Pass-Pail Criteria for the Fire Test is as follows:

"3.4.2 Hose Stream Test >> Immediately following Test I (the'ne-hour Pire Test: ),

I accessible surfaces of. the Protective Envelope shall he subjected to one of the following hose stream tests. The hose stream shall be applied for a minimum of 2b minutes, without de-energizing the circuits.

3.5 The tests shall he constituted a failure if any of the following occur:

1. Circuits fail or fault during the fire test as required in Test I or fail during the hose stream test." =

~ On the basis. of this cable inte rit , as shown h the Fi e 3 Monitorin Circuits, the Cable Tra Conduits and Air Dro Test Assembl PASSED a11 of the One Hour Pire Test R irements. However,, to provide additional test data for interpretation of the test results, a number of cable surface temperature measurements must also he recored and reported in the Test Report. The 'usual'emperature limits associated with cable surface temperatures are as. follows:

l. 400 0P for cable in the cable tray.

2. 700 0P for cables in the air drops.

As previously stated,. Exhibit 3 presents a copy of the actual Honeywell Chart recordings for all twelve (12) thermocouples used in the Fire Test. Figures 12, 13 and 14 present plots of the measured electrical cable surface temperatures in the Ladder Back Cable Tray. As shown, a maximum electrical cable surface temperature of 315 0F was recorded after a one hour. exposure time to the TSI ASTM-E-119 Fire Simulation Facility environment. At the end of one hour's exposure to this fire environment, the electrical cable surface temperatures, for the cables in the cable tray, ranged from a low of 190 0F to a high of 315 oF, well below the o

commonly used mar. ~um electrical cable surface temperature of,400 F for cables installed in cable trays.

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Figure 15 presents the Time-Temperature measurements for the electrical cable installed in the'Air Drop'ortion of the Test Specimen. As shown, at the end of the one-.hour fire exposure, the cable surface temperature was recorded as 0

450 0 F,'ell below the commonly accepted limitation of 700 F for electrical

'I cables in air drops. The Time-Temperature measurements for the surface temperature of the Ladder Back Cable Tray (measurement made in the upper leg of the Test Specimen as is shown in Figure 8) and the air temperature inside the upper leg of the Test Specimen (see Figure 8) are presented in Figure 16. As shown, the end of one-hour's fire exposure, the Ladder Back Cable Tray reached a metal surface 0 o temperature of 450 F and an air temperature of about 315 F gust above the electrical cables.

VIX RESULTS OF WATER HOSE STREAM TEST Figures 17 and 18 present photographs of the 14 inch diametr water hose stream being applied to the fire tested Cable Tray,'onduits and Air Drop Test Assembly.

As shown, the water stream has a high impact upon the fire tested Test Specimen and is a relative compact water stream which covers the entire Test Specimen. This hose stream and its point of discharge with respect to the Test Specimen meets the criteria presented in Exhibit 2 to this report (ANI/MAERP Requirements).

Figure 19 presents a close-up of the Cable Integrity Monitoring Panel immediately following 3-minutes of water hose stream application to the fire tested Cable Tray, Conduits and Air Drop Test Assembly. AS shown by the lighted bulb and the two non-lighted bulbs, electrical circuit continuity was maintained throughout the fire test and water hose stream test and that no faults, or short circuits occurred during either tests. This means that the Test Specimen meets the specified Cable I. Integrity Requirements specified in Exhibit 2 to this repoit '(ANI/MAERP Require<<

ments for Class ]E Electrical Circuit Protective Enclosures),

Based upon the tests results and experimental data presented herein, as well as detail visual inspections of the Cable Tray, Conduits and Air Drop Test Assembly before the start of testing and after both the One Hour Fire Test and the Water Hose Stream Test, the following Conclusions and Observations are presented for consideration and evlauation purposes:

1. Based upon the requirements for maintaining cable circuit integrity, as specified

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14 Inch Diameter Akron Brass 15 Dispersed Water Stream Adjustable Stream Pattern Water Discharge Nozzle Y

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100-Feet of 14 Inch Diameter Fire llose ,Separation Distance between Mater Hose Line Nozzle and Test Specimen Equals the Required 10-Feet FI<;URF. 17: PHOTOGRAPH OF WATER STREAH BEING APPLIED TO THE CABLE TRAY, CONDUITS AND AIR DROP ASSEHBLY AFTER EXPOSURE TO THE ONE HOUR FIRE TEST, WITll A l~g INCH DIAHETER llOSE LINE FROH A CLASS A 1250 GPH PUHPER TRUCK VI<iURE lH: CLOSE-UP OF TllE CONTACT OF THE 15 INCH DIAMETER 15 DEGREE. ANGLE DISPERSED WATER STREAM WITH THE CAl)LE TRAY, CONDUIT AND AIR DROP ASSEMBLY TEST SPECIMEN

~~>ISO~ AYD ASSOClATES, INC.

I NOTES: l. THE LIGHTED "BULB" IS THE "CIRCUIT TO SYSTEM " MONITORING CHANNEL I (LIGHTED MEANS CABLE INTEGRITY)

2. The NON-LIGHTED Bulbs are for the "Circuit to Circuit" and "Circuit to Ground" Monitoring Channels. A LIGHTED BULB here means the presence of a'ault or short.

I FIGURE 19: CLOSE-UP OF ENERGIZED CABLE INTEGRITY MONITORING CIRCUIT DISPLAY PANEL IMMEDIALTELYFOLLOWING THE HATER HOSE TEST ON A FIRE TESTED l CABLE TRAY, CONDUITS AND AIR DROP ASSEMBLY I I WESSON AND ASSOClhTES, INC.

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in Paragraphs 3.4.1, 3.4.2 (3) and 3.5 (1) of ANI/MAERP Standard Fire Endurance Test Method to Qualify A Protective Envelope for Class lE Electrical Circuits (see Exhibit 2 to this report), the TSI Cable Tray, Conduits and Air Drop Thermo-Lag 330-1 Subliming Coating System PASSES both the Fire Test and the Water Hose Stream Test Requirements is all aspectes.

2. The recorded cable surface temperature measurements at the conclusion of the One-Hour Fire Test shows that the electrical cable surface temperature are well below camaonly accepted industrial standard limitations.

3. A Post Pire Test and Water Hose Stream Impingement Test detail visual inspection of the Cable Tray< Conduits and Air Drop Test Assembly showed the following:

a. Pigure 20 presents a photograph of the TSZ Cable Tray, Conduits and Air Drop Test Specimen immediately following the One Hour Pire Test"and the Water Hose Stream Impingement Test. Figure 21 presents the same Test Specimen with por-tions of the Thermo-Lag 330-1 Subliming Coating Envelope System removed from the cable tray assembly. As shown, in Figure 21 'one'f the electrical cables in direct. contact with the metal cable tray under went a slight decomposition and bubbling in the cable covering. This wouM account for the slight amount yellowish smoke that was observed to issue fran within the cable tray opening after about 30 minutes of fire exposure. Cutting open the cable ]acket bubbled area showed NO damage to the cables themselves, in so far as heat oi fire damage is concerned.

b. Figure 22 piesents a photograph of the interior surface of the Thermo-Lag 330-1 Subliming Coating Envelope System after the One Hour Fire Test and the Water Hose Stream Test (a solid cone water discharge from 10 feet was also used on this portion of the protective covering). As shown, the Thermo-Lag 330-1 Subliming Coating has not fully sublimed all the way through the original 0.469 dry film thickness and has not been damaged by the Water Hose Stream Test. No actual measurements were made of the unsublimted thickness.

Essentially all of the dry film thickness was sublimed along the upper leg of the test specimen. Since the air temperature around the test specimen and the measured thickness of the protected envelope were essentially the same, the differences in convection'heating would account...for the unsublimed coating.

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c. Figure 23 shows a section of electrical cable being removed from the Test Specimen for a detail'nspection of the interior cables. Figure 24 shows the actual physical condition of the cabling inside the section of removed cable.

As far as a visual inspection is concerned, NO damage at all resulted to any .

% ESSON hND ASSOCIhTES, INC.

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.I IIGURE 20: PHOTOGRPAll OP TllE TllERMO-LAG 330-1, SUBLIMING'COATING ENVELOPE SYSTEM PROTECTED CABLE TRAY, CONDUITS AND AIR DROP TEST ASSEMBLY FOLLOWING 'l'llE ONE llOUR FIRE TEST AND hATER llOSE STREAM TEST IVFssov ANn AssocrATEs, INc.

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BUBBLING OF CABLE SURFACE COVERING (CABLE IN DIRECT CONTACT WITH CABLE TRAY METAL SURFACE) fg@ @~$ 4~

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FIGURE 21: PllOTOGRPAll OF TllE TSI CABLF. TRAY, CONDUITS AND AIR DROP TEST SPECIMEN WITH PORTIONS OF THE PROTECTIVE COVERING REMOVED AVESSOV. AND ASSOCIATES, INC.

UNSUBLIMED THERMO-LAG 330-1 MATERIAL THERMO-LAG STRESS SKIN TYPE 330-69 ELECTRICAL CABLE BUNDLE LADDER BACK CABLE TRAY STRUCTURE THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM AFTER TllE ONE HOUR FIRE TEST AND WATER HOSE STREAM TEST l'IGURE 22: PHOTOGRPAH OF THE INTERIOR SURFACE OF THE CABLE'TRAYS CONDUIT AND I AIR DROP TEST SPECIMEN THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM AFTER THF. ONE HOUR FIRE TEST AND WATER .liOSE STREAM TEST I

I ESSON AND'SSOClAYES, INC.

I FIGURE 23: PHOTOGRPAH OF A SECTION OF ELECTRICAL CABLE'BEING 'REMOVED FROM A CABLE BUNDLE IN THE TSI CABLE TRAY, CONDUIT,AND AIR DROP TEST SPECIMEN AFTER A ONE HOUR FIRE TEST AND A WATER NOSE STREAM IHPINGEMENT TEST-WF.SS()Y AND ASSOClATF.S, INC.

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l'IGURE 24: PHOTOGRPAH OF THE INTERIOR OF AN ELECTRICAL CABLE IN THE TSI CABLE TRAY, CONDUITS AND AIR DROP TEST SPECIHEN'AFTER THE ONE HOUR'IRE TEST AND WATER HOSE STREAM IllPINGEHENT TEST WFSSOV AND ASSOCIATES, INC.

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of. the individual wires or cables. Even the paper lining on the cable cover-

. ing was NOT scorched or burnt.

d. On the basis of the Cable Integrity .Monitoring Requirements and the detail visual inspection of the Test Specimen after the One Hour Pire Test and the Mater Hose St'ream Test, it can be safely concluded that the Thermo-Lag 330-1 Subliming Coating Envelope System, as tested and reported upon herein, more than meets all the specified Performance Criteria and will provide more than the required One Hour of thermal .protection against an ASTM-E-119 Test Method fire environment (actual test period was 65 minutes).

IX REFERENCES

1. TSI Nuclear Quality Assur'ance Program Manual and TSI Quality Operating Pro-4 cedures Manual (Copy No. 014 to Dr. H. R. Wesson, Wesson and Associates, Inc.,

P. O. Box 1082, Norman, OK 73070: Transmittal date of 7 August 1981).

Report Prepared By:

Dr. Harold R. Wesson, PE State of Oklahoma Registration No. 8591, 19 June 1970 State of Texas Registration No. 17430, 17 April 1959 President NESSON 'AND ASSOCIATES, INC.

P. 0. BOX NO. 1082 NORMAN'K 73070 WESSON AND ASSOCIATES, INC.

"EXHIBIT *1" TSI TECHNICAL NOTE 80181 THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLICATION PROCEDURES 8/81 REVISION I

TSI TECHNICAL NOTE 80181 REVISION I 8/81 PREPARED BY:

Wilbur Paddock Manager of Production REVIEWED BY:

R. A. man Man r, Quality Assurance APPROVED BY:

R. Feldman President

TABLE 'OF CONTENTS SECTION TITLE PAGE NO.

1.0 INTRODUCTION

2.0 PRE-APPLICATION PRACTICES 3.0 FABRICATION OF STRESS SKIN ENVIKOPE 4.0 COATING APPLICATION TECHNIQUES 19 5.0 TOPCOAT APPLICATION 22 6.0 POST APPLICATION PRACTICES 22 7.0 .

EQUIPMENT SUGGESTIONS 23 APPENDIX A SCHEMATIC OF SUGGESTED PE%'.TRATING MEASURING DEVICES 24 APPENDIX B SUGGESTED COMPLEMENT OF REQUIRED SPRAY EQUIPMENT FOR THERMO-LAG 330>>1 SUBLIMING COATING APPLICATION 25 APPENDIX C APPLICATION PROCEDURES - STRUCTURAL STEEL 27 EVZITIES'YPICAL APPENDIX D APPLICATION DETAILS APPENDIX E FIREPROOF COATING THICKNESSES REQUIRED FOR VARIOUS STRUCTURAL STEEL MEMBERS

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LIST OF FIGURES FIGURE PAGE NUMBER . TITLE NO.

1.0.1 THERMO-LAG Stress Skin Type 330-69 Typical Layout for Cable Tray Sections 1.0.2 THERMO-LAG Stress Skin Type 330-69 Installation Schematic Prior to THERMO-LAG 330-1 Subliming Coating Application 1.0.3 Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System-Applied to a Typical Cable Tray 1.0.4a THERMO-LAG Stress Skin Type 330-69 Installation Schematic Prior to THERMO-LAG 330-1 Subliming Coating Application 9a 1.0.4b Installation Schematics For Attaching Additional Sections of THERMO-LAG Stress Skin Type 330%9 to Previously Installed THERMO-LAG Stress Skin Type 330-69 9b 1.0.5a Cross. Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Drops 10a 1.0.5b Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Drops 12a 1.0.6a Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Conduit and Cable Drop 13a 1.0.6b Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Tray and Cable 13b Drop'ross 1.0 7 Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to a Junction Box Assembly

"EXHIBIT 1" TSI TECHNICAL NOTE &0181 THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLICATION PROCEDURES 8/81 REVISION I

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TSI TECHNICAL.NOTE 80181 THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE "SYSTEM APPLICATION PROCEDURES

1.0 INTRODUCTION

This procedure sets forth the sequential steps involved in applying THERMO-LAG 330-1 Subliming Coating Envelope System to cable trays, cable drops, conduit, /unction box assemblies, and structural steel.

The 'QiKtNO-LAG 330-1 Subliming Envelope System consists of THERMO-LAG Stress Skin Type 330-69, .THERMO-LAG 330-1 Subliming Coating, Fiberglass Armoring, and where required, THERMO-LAG 330-70 Conformable Ceramic Blanket and. TfKf9fO-LAG 350 Two Part Spill Resistant Topcoat.

2.0 PRE-APPLICATION PRACTICES 2.1 alifications of Contractor The application shall be performed by a qualified contractor who has had prior training in applying the material and who has the equipment required to perform the application.

2.2 Safet Precautions The contractor shall follow standard industrial safety practices established for the handling of chemical coatings and shall conform to applicable OSHA and owner safety rules in all respects.

2.3 ~Deliver The coating materials shall be delivered to the job site in original, unopened containers which show the product name, batch number, color, name of the manufacturer, the expiration date, and where applicable, an Underwriters'aboratories label.

2.4 ~Stora e The coating materials shall be stored off the ground when not in use in an area provided for that purpose. The materials in storage shall be protected against freezing and from temperatures above 100'F.

2.5 Te erature and Preci itation The coating materials shall be applied only to dry surfaces. The temperature of the coating material and surfaces to be coated shall be above 40'F during the material application and curing periods.

The contractor shall furnish and install any protective covers required to protect the newly applied coating from rainfall or hard freeze during its initial curing.

period.'.6 Protection of Ad acent Surfaces The contractor shall mask off or otherwise protect all adjacent areas and in place equipment from, receiving any material overspray during the coating application. Any spilled material and overspray shall be removed promptly using water, wet rags or sponges before the material has dried.

3.0 FABRICATION OF STRESS -SKIN ENVELOPE 3.1 Cable Tra s (Fi ures 1.0.1, 1.0.2, 6 1.0.3) 3.1.1 Cut a piece of material large enough to form the bottom section from a roll of Stress Skin. The width of the bottom section shall be equal to the sum of the base (W) and both sides (H) of the cable tray plus 3Q inches, as shown in Figure 1.0.1 . -The length of the bottom piece of material shall not exceed 10 feet since longer sections are unwieldy and are difficult to install.

3.1.2 Cut a square 14 inch piece from each corner of the bottom section of the Stress Skin.

3.1.3 Form a "U" shaped section by making two 90'ends, along the dotted lines which are located at each end of the W + Q" dimension line shown in Figure 1.0.1.

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3.1.4 Form a lg" flange on each side of the bottom section by making a 90 bend along the dotted lines as shown in Figure 1.0.1.

3.1.5 .

Cut a piece of material large enough to form the top section from a roll of'tress Skin. The width of the top section shall be equal to the base (W) of the cable plus 2Q".

3.1.6 Form a 14" flange at each end of the top section by making 90 bends along the dotted lines shown in Figure 1.0.1.

3.1.7 ~

Drill holes for fastening the bottom and top sections together as required in the flanges of both sections .as shown in Figure 1.0.2.

3.1.8 Mount the bottom and top sections of Stress Skin on the cable tray and fasteri the two sections together at a maximum of six inch intervals using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.9 Attach additional bottom and top sections of Stress Skin to a previously installed section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.10 Coat the bottom and top sections of Stress Skin with TfKRMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.3. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4:0 of this procedure.

OR WHEN COATING PRIOR TO MOUNTING 3.1.11 Coat the bottom and top sections of Stress Skin with THERMO-LAG 330-1 Subliming Coating prior to mounting on the cable tray. The coating shall be applied with Fiberglass Armoring in accordance with instruc-tions given in Section 4.0 of this procedure.

3.1.12 Drill holes for fastening the bottom and top sections together as required in the flanges of both sections as shown in Figure 1.0.2.

FIGURE 1.0.2 THERMO"LAG STRESS SKIN TYPE 330-69 INSTALLATION SCHEMATIC PRIOR TO THERMO-LAG 330-1 SUBLIMING COATING APPLICATION TOP SECTION HOLES FOR MOUHTIHG SIIPPEHEHS BOTTOM SECTION FLANGES

I FIGURE 1.0.3 CROSS SECTIONAL.VIER OF THERMO-LAG, 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO A TYPICAL CABLE TRAY THERMO-LAG 330-1 SUBLIMING COATING FIBERGLASS

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3.1.13 Mount the bottom and top .sections of the precoated Stress Skin on the c'able tray and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.14 Attach additional precoated bottom and top sections of Stress Skin to a previously installed section by fastening them together at the end flanges using mechanical fasteners'; staples or 18 ga. galvanized tie wire.

3.1.15 Apply a coating of THERMO-LAG 330-1 Subliming Coating in the specified wet film thickness to the edges and joints of the precoated sections of Stress Skin using a trowel or or fastening holes.

stiff bristle brush to fill in any gaps 3.2 Conduit Fi re 1.0.4) 3.2.1 Cut two pieces of Stress Skin large enough to form a top arid a bottom section, for the conduit. The width of each piece shall be equal to 4" of the circumference of the conduit plus 1". The length of the piece of Stress Skin shall not exceed 10 feet since longer sections are unwieldy and more difficult to install.

3.2.2 Form a semi-circular section with edge flanges from each of the two pieces by making two 90'ends at a distance of 1/2 inches from each edge of the width dimensions as shown in Figure 1.0.4a.

For sharp r5dius bends, the procedure delineated in Section 3.0 for the fabrication of Stress Skin Envelope utilizing a design as shown in Figure 1.0.2 shall apply for conduit when sharp radius bends must be coated.

3.2.3 Form a 4" flange on the length edges of each of the two pieces, where required, by making 90 bends.

3.2.4 Drill holes for fastening the bottom and top sections together at a maximum of six inch intervals in the flanges of both sections when required.

3-2.5 Mount the bottom and top sections'of Stress Skin on the conduit and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, staples or 18 ga. galvanized tie wire.

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3 2.6 httach additional bottom and top sections of Stress Skin to a

.previously installed bottom and top sections as'shown in Figure 1.0.4b.

a) Overlapping the bottom and top sections by a aexfmum of 2 or b) Fastening them together at the end flangea using mchanfcal fasteners, staples or 18. ga.'galvanized tie wire.

3.2.7 Coat the bottom and top sections of Stress Skin with THERMO-LhG 330-1 Subliming Coating. The coating shall be applied with Piberglase hrmorfng in accordance with instructions given fn Section 4.0 of this procedure.

OR WHEN CMlTING PRIOR TO M)UNTING 328 Coat the bottom and top sections of Stress Skin with THERE'D-LhG 330-1 Subliming Coating prior to <<ounting on the conduit. The coating shall be applied with Piberglass hraorfng in accordance with instruc-tions given in,Section 4.0 of this procedure.

R 3 2.9 Drfll h'oles for fastening the bottom and top sections together as requfred in the flanges of both sections.

3 2.10 Mount the bottom and tops sections of the precoated Stress Skin on

.the conduit and.fasten the two sections together at a maximum of six inch intervale using mechanical fasteners, staples or 18 ga.

galvanized tie wire.

3-2.11 Attach additional precoated bottom and top sectfons of Stress Skin to a previously installed section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanfzed tfe wire as shown in Pfgure 1.0.4b.

3.2-12 hpply a coating of TIBER)-LhG 330-1 Sublimfng Coating in the specified

'wet film thickness to the edges and )ofnts of the precoated sectfons of Stress Skin using a trowel or stiff bristle brush to gape or fastening holes.

fill in any

FIGURE 1.0.4a THERMO-LAG STRESS SKIN TYPE 330-69 INSTALLATION SCHEMATIC PRIOR TO THERMO-LAG 330-1 SUBLIMING COATING APPLICATION THEIQiO-LAG Stress Skin Type 330-69 Conduit

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FIGURE 1.0.4b INSTALLATION SCHEMATICS. FOR ATTACHING ADDITIONAL SECTIONS OP THERMO-LAG STRESS SKIN TYPE 330-69 TO PREVIOUSLY INSTALLED THERMO-LAG STRESS SKIN TYPE 330&9 THERMO-LAG STRESS SKIN END FLA AGES END FLANGES THERMO-LAG STRESS SKIN CONDUIT THER fO-LAG STRESS SKIN 2" Minimum Overlap THER.S-LAG STRESS SKIN CONDUIT 9b

.3.3 Cable Dro s (Fi ure 1.0.5 3.3.1 Cut a piece of Stress Skin large enough to wrap around the circum-ference of a single or multiple number of 'cable drops. The width of the piece should be equal to the circumference of the single or group of cable drops plus an additional 3/4" minimum to provide for the overlap. The length of the piece of material shall not exceed 10 fee't since longer sections are unwieldy and more difficut to handle.

1 3.3.2 Wrap the piece of Stress Skin around the single or group of cable drops and secure at a maximum of six inch intervals with 18 ga. galvanized tie wire. Attach additional pieces of Stress Skin to a previously wrapped piece by overlapping by a m1nimum of six inches and secure with 18 ga. galvanized tie wire.

P 3.3.3 Cut a piece of THERMO-LAG 330-70 Conformable Ceramic Blanket large enough to wrap around the circumference of the installed Stress Skin.

The width of the piece should be equal to the circumference of the installed Stress Skin plus 8'inimum to provide for a tight abutment of the edges., The length of the piece of material shall not exceed 10 feet in order to minimize the handling problems during installation.

3. 3.4 Wrap the piece of Conformable Ceramic Blanket around the installed piece of Stress Skin and secure at a maximum of six inch intervals with 18 ga. galvanized tie wire. Attach additional pieces as required of the Conformable Ceramic Blanket to a previously installed piece by tightly abutting the pieces together. Care should be exercised to ensure that the wrapping of the Conformable Ceramic Blanket is continuous with no gaps or holes in the material surfaces.

3.3.5 Cut two pieces of Stress Skin large enough to form a top and a bottom section.'he width 'of each piece shall be equal to one half of the circumference of the installed Conformable Ceramic Blanket plus 2$ " minimum. The length of the piece of material shall not exceed 10 feet since longer sections are unwieldy'nd more difficult to handle.

3.3.6 Form a semi-circular section with edge flanges from each of the top pieces by making two 90'ends at a distance of 14" minimum from each edge of the width dimension.

LO

FIGURE 1 0 5a CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CABLE DROPS THERMO>>LAG 330-1 FIBERGLASS ARMORING

'HERMO-L'AG 330-1 c~

TRERNO-LAG STRESS SKIN I I

CONFORMABLE CERAMIC BLANKET r 4

FASTENER THERMO-LAG STRESS SKIN TIE WIRE TIE WIRE

3.3.7 Porm a 14" flange on thelength edges of each of the two pieces, when required, by making 90'ends.

3.3.8 Cut holes for fastening the bottom and top sections together at a maximum 'of six inch intervals in the flanges of both sections.

3 3.9 Mount the bottom and top sections of Stress Skin on the Conformable Ceramic Blanket and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, stapes or 18 ga.

galvanized tie wire.

3.3.10 Attach additfonil bottom and top sections of Stress Skin to a previously installed bottom and top section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.3.11 Coat the bottom and top sections of Stress Skin with THH9$ -LAG 330-1 Subliming Coating as shown in Pigure 1.0.5a. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4,0 of this procedure.

3.3.12 Cable Drops (Fi ure 1'.0.5b) 3.3.12.1 Cut a piece of Stress Skin large enough to wrap around the circum-ference of a single or multiple number of cables. The width of the piece should be equal to the circumference of the single or group of cable drops plus an additional 3/4" minimum to provide for the .overlap. The length of the piece shall not exceed 10 feet since longer sections are unwieldy and more difficult to handle.

3.3.12.2 Wrap the piece of Stress Skin around the single or group of cable drops and secure at a maximum of six inch intervals with 18 ga.

galvanized tie wire. Attach additional pieces of Stress Skin to a previously wrapped piece by overlapping by a minimum of six inches and secure with 18 ga. galvanized tie wire.

11

3.3.12.3 Coat the section .of Stress Skin with THERMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.5b. The coating shall be applied with Fiberglass Armoring in, accordance instructions given in Section 4.0 of this procedure. 'ith 3.3.12.4. Cut a piece of THERMO-LAG 330-70 Conformable Ceramic Blanket .

large enough to wrap around the circumference of the installed Stress Skin. The width of the piece should be equal to the circumference of the installed Stress Skin plus 7'inimum to provide for a tight abutment of the edges. The length of the piece of material shall,not exceed 10 feet in order to minimize the handling problems during installation.

3.3.12.5 Wrap the piece of Conformable Ceramic Blanket around the piece of Stress Skin and secure at a maximum of 'nstalled six inch intervals with 18 ga. galvanized tie wire. Attach additional pieces as required of the Conformable Ceramic Blanket to a previously installed piece by tightly abutting the pieces together. Care should be exercised to ensure that the wrapping of the Conformable Ceramic Blanket is continuous with no gaps or holes in the material surfaces.

3.3.12.6 Cut two pieces of Stress Skin large enough to form a top and a bottom section. The width of each piece shall be equal to one half of the circumference of the installed Conformable Ceramic Blanket plus 2Q" minimum. ~e length of the piece of material shall not exceed 10 feet since longer sections are unwieldy and more difficult to handle.

3.3.12.7 Form a semi-circular section with edge flanges from each of the top pieces by making two 90'ends at a distance of 14" minimum from each edge of the width dimension.

12

F.IGURE 1.P.5b CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CABLE DROPS THERMO-LAG '330-1 FIBERGLASS ARMORING THERMO.-LAG 330-1 l sS's c.s r

TEERRO-ERG STRESS SKIN CONFORMABLE CERAMIC BLANKET rrr r

THERMO-LAG 330-1 FASTENER THERMO-'LAG STRESS SKIN I

WIRE TIE WIRE

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3.3.12.8 Form a 14" flange on the length edges of each of the two pieces,

- when required,by making 90'ends.

3.3.12.9 Cut holes for fastening the bottom and top sections together a't a max'imum of six inch intervals in the flanges of both sections.

3.3.12.10 Mount the bottom and top sections of Stress Skin on the Conformable Ceramic Blanket and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, stapes or 18 ga.

galvanized tie wire..

3.3.12.11 Attach additional bottom and top sections of Stress Skin to a previously installed bottom and top section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga.*galvanized tie wire.

Coat the bottom and top sections of Stress Skin with TH%NO-LAG 330-1 Subliming Coating as shown in Figure 1.0.5b. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0'of this procedure.

3.4 Conduit and Cable Dro Junction Fi re 1.0.6) 3.4.1 Apply the THERMO-LAG 330-1 Subliming Coating Envelope System to the conduit and the single or multiple cable drops following the "

instructions given in Section 3.2 or 3.3 of this procedure.

3.4. 2 Cut a piece of Stress Skin of sufficient size to wrap around the circumference of the conduit. The width'f the piece should be equal to the*outside circumference of the conduit plus an additional 3/4 inch to provide for an overlap. The length of the piece shall be 12 inches minimum.

3.4.3 Wrap the piece of Stress Skin around the outside circumference of the conduit in such a manner that it covers six inches of the conduit.

Secure the piece of Stress Skin to the conduit with two 18 ga. gal-vanized tie wires mounted approximately 5 inches apart.

13

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FIGURE 1.0.6a CROSS SECTIONAL. VIEW OF

'QKRMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CONDUIT AND CABLE DROP CONDUIT THERMO-LAG 330-1 BEVELED EDGE OP THERMO-LAG STRESS SKIN THERMO-LAG 330-1 FIBERGLASS.ARMORING AND FIBERGLASS ARMORING FIBERGLASS ARMORIEG HERMO-LAG STRESS~SKI

~

THERMO-LAG 330"1 THERMO-LAG STRESS SKIN CABLE DROP~

3.4.4 Cut a required number of small pieces of THERMO-LAG 330-70 Conformable Ceramic Blanket from a r'oil of this material.

3.4.5 Insert the small pieces of Conformable Ceramic Blanket inside the open end of the installed piece of Stress Skin and around -and between the cable drops in such a manner that the open end 'is relatively sealed. Then secure the piece of Stress Skin to the cable drops with 18 ga. galvanized tie wires.

3.4.6 Coat the installed piece of Stress Skin with THERMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.6. The coating shall be applied with Fiberglass Armoring in accordance with the instruc>>

tions given in Section 4.0 of this procedure.

Cable Tra and Cable Dro Junction at en End of Cable Tra 3.5.1 Apply the THERMO-LAG 330-1 Subliming Coating Envelope System to the cable tray at the single or multiple cable drops following the instructions given in Sections 3.1 and 3.3 of this procedure.

3.5. 2 Cut a piece of Stress Skin of sufficient size to wrap around the outside parameters of the cable tray. The width of the piece should be equal to the outside parameter of the cable tray plus an additional 3/4" to provide for .an overlap. The length of the piece shall be 24 inches minimum.

3.5 ' Vrap the piece of Stress Skin around the parameter of the cable tray in such a manner that it covers six inches of the conduit. Secure the piece of Stress Skin to, the conduit with two 18 ga. galvanized tie wires mounted approximately 5 inches apart.

3. 5.4 Cut a required number of small pieces of the THERMO-LAG 330-70 Conformable Ceramic Blanket from a roll of this material.

3.5.5 Cut slots approximately 12 inches in length at each corner of the open end of the piece of Stress Skin.

FIGURE 1.0.6b CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM

/

APPLIED TO CABLE TRAY AND CABLE DROP CABLE TRAY BEVELED EDGE OF THERMO-LAG 330-1 A%) FIBERGLASS AR fORING THERMO-LAG 330-1 RKRHD-LhC STRESS IN PIBERGLhSS hRMCRBKl l PIBERGLhSS JQ@gRIN~G TRERNO-LAG STREE~SERI THERMO-LAG 330-1 T8ER?fO-ZhG STRESS SKIS CARDS DROP~

L4a

3.5.6 Insert the small pieces of Conformable Ceramic Blanket inside the installed piece of Stress Skin and around and between the cable drops in such a manner that when the slit open end of the piece of Stress Skin is tightened around the cable drops, the open end is effectively sealed. Then secure the piece of Stress Skin to the cable drops with 18 .ga. galvanized. tie wires.

3.5-7 Coat the installed piece of Stress Skin with THERMO-LAG 330-1 Subliming Coating in the required thickness. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.6 Cable Tra and Cable Dro Junction at To or Bottom of Cable Tra 3.6.1 Apply the 'QKRMO-IJZ 330-1 Subliming Coating Envelope System to the cable tray and the single or multiple cable drops following the instructions given in Section 3.1 and 3.3.

3.6.2 Cut a piece of Stress Skin of sufficient size to form a truncated cone shape which has one end that is equal to the circumference of the cable drops plus 3/4 inch to provide for overlaps. The other end -should be approximately four times the circumference of the cable drops plus 3/4 inch to provide for overlaps. The length of the piece should be 6 inches minimum.

t 3.6.3 Form a 1" flange at the large end of the piece of Stress Skin by making a 90'end along a line which is 1" up and parallel to the large end; Drill holes 'for fastening the flange to the cable tray as required in the flange.

3.6.4 Cut a required number of small pieces of THERMO-LAG 330-70 Conformable Ceramic Blanket from a roll of this material.

3.6.5 Form a cone out of the piece of Stress Skin taking care to overlap the sides by 3/4 inch.

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3.6.6 Insert the small pieces of Conformable Ceramic Blanket inside the small end of the cone in such a manner that the small end is sealed when it is wrapped around the cable drops. Then secure the small end of the piece of Stress Skin to the cable drops with 18 ga.

galvanized tie wires.

3.6.7 Secure .the flanged end of the piece of Stress Skin to the cable tray using mechanical fasteners, staples or 18 ga. galvanized tie wires.

3.6.8 Coat the installed piece of Stress Sldn with THERMO-LAG 330-1 Subliming Coating. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.7 Cable Tra or Conduit Junction With Pire Wall 3.7.1. Attach the Stress Skin Envelope of the cable tray or conduit at each )unction with a fire wall by fastening the butt flange of the Stress Skin to the fire wall using mechanical fasteners.

3.7.2 Apply the THERMO-LAG 330-1 Subliming Coating to the butt flanges, overlapping the flange )oints with the coating by a minimum of 3 inches. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.8 Junction Box Assembl (Fi ure 1.0.7 3.8.1 -

Cut two pieces of Stress Skin large enough to form the top and bottom sections of the main assembly section of the )unction box assembly as shown in Figure 1.0.7. The width of each piece of material shall be equal to the width of the )unction box plus 5 inches and the

.length of each piece shall be equal to the. depth of the )unction box plus 3 inches. The additional 5 inches provides for 14" flanges and 14" clearance from the side edges of the )unction box. The additional 3 inches provides for 14" flanges 'and 14" clearance along the sides of the junction box.

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FIGURE 1.0.7 CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO A JUNCTION BOX ASSEMBLY CONDUIT COVERED WITH THERMO-LAG STRESS SKIN>>

THERMO-LAG 330-1 AND THERMO-LAG FIBERGLASS ARMORING I 330-1 SUBLIMING COATING .

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THERMO-LAG AND 330-1 FIBERGLASS I ARMORING MAIN ASSEMBLY ERMO-LAG 330-1 SECTION PPLIED 'TO THERMO-LAG STRESS SKIN I FRONT PLATE SECTION I

THERMO-LAG FASTENERS b'.-: STRESS SKIN 17

3.&.2 Cut any .required holes for cable drops in the top and bottom sections.

3.8.3 'orm a 14" flange on each of the four sides of the top and bottom section of Stress Skin by making the required number of 90'ends.

3.8.4 Drill holes for fastening the top and bottom sections at a maximum of 6 inch intervals in the flanges as shown in Figure 1.0.7.

3.8.5 Cut two pieces of Stress Skin large enough to form the two side sections of the main assembly section. The width of each piece of Stress Skin shall be equal to the height of the junction box plus 5 inches and the length of each piece shall be equal to the depth of the junction box plus 3 inches. The additional 5 inches provides for 14" flanges and lg" clearance from the top and bottom edges of the junction box. The additional 3 inches provides for 14" flanges and V'learance along the sides of the junction box.

3.8.6 Drill any required holes for cable drops in the two side sections.

3.8.7 Form a lg" flange on each of the four sides of the two side sections of Stress Skin by making the required number of 90'ends.

3.8.8 Drill holes for. fastening the two side sections at a maximum of 6 inch intervals in the flanges as 'shown in Figure 1.0.7.

3.8. 9 Cut a piece of Stress Skin large enough to form the front plate section. The width of the front plate section shall be equal to the width of the top and bottom sections plus 2Q" required to cove'r the flanges. The length of the front plate section shall be equal to the height of the side sections plus 24" required to cover the flanges.

3-8.10 Drill holes for fastening the front plate section to the main assembly section as shown in Figure 1.0.7.

3.8.11 Mount the main assembly section around the junction box by connecting the top .and bottom sections to the two side sections'and attaching the main assembly section to the wall on which the junction box is mounted using mechanical fasteners, staples or 1& ga. galvanized tie wires.

1&

3.8.12 Mount the front plate section on the main assembly section using mechanical fasteners, staples or 18 ga. galvanized tie wire.

J 3.8.13 Coat the assembled front plate and main assembly sections of Stress Skin with .THERMO-LAG 330>>1 'Subliming Coating. The coating shall be applied'ith Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.9 Structural Steel Su orts 3.9.1 See Appendix C of this procedure for application instructions.

4.0 COATING APPLICATION TECHNI UES 4.1, S ra A lication 4.1.1 Apply the THERMO-LAG 330-1 Subliming Coating over a properly prepared surface. Make sure that the surface to be coated is clean, dry> above 40'F and free from scale, rust or other contaminants.

4.1.2 Apply the material in as many passes as required to provide the required film build of coating thickness, taking care to avoid slumping or sagging of the coating. Normally, a required 0.500 inch dry coating thickness is accomplished by applying three wet coats of 0.225 inches.

However, the thickness which can be safely applied in a single pass will depend on the temperature, humidity, and other factors that are best determined on the gob site.

4.1.3 Apply the material in smooth even passes, taking care to keep the spray gun fan pattern at a 90'ngle whenever possible. Reaching with a spray gun will cause the spray pattern to vary from the 90 angle and vill'result in a rougher surface than normal.

4.1.4 Take frequent wet thickness measurements during the application using a penetration measuring device such as those shown in Appendix A to ensure that the coating is being applied uniformly and at the required wet film thickness. These wet thickness checks shall be made every five square feet or every two running feet of coated surface area. (Note: When

'taking measurements allow for a shrinkage rate of 25% between the wet and the desired dry film coating thickness.

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4.1.5 Remove excess build up of coating material at edges and joints by brushing or rolling the surface with a damp sponge roller.

4.1.6 Spray edges of the substrate from each side to cause the material to wrap around the edge. Ef the edge coating is not completely closed, use a wet roller or trowel to seal the edge surface.

4.1.7 Apply Piberglass Armoring to the wet surface after the final pass and use a roller to flatten out any wrinkles and to embed the fiberglass securely. Then apply sufficient material to cover the embedded fiberglass.

4.1.8 Remove all runs, sags, drips or other surface imperfections before the material cures using wet sponge rollers, bgushes 'or hand trowels.

4.2 Hand A lications 4.2.1 Trowel the material to a uniform thickness using moderate pressure and avoid overworking the material. The trowel should be wetted with water when a smooth finish is required.

4.2.2 Glove the material to cables and small pipe using standard work gloves. Work small areas and keep the gloves wet to 'insure a relatively'niform thickness.

4.3 D Film Thickness Measurements 4.3.1 Take dry film thickness measurements after the applied material has cured. Measurements shall be made using electrical, penetrating or magnetic measuring instruments.

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4.4 Re air Procedure Dama e 4.4.1 . Remove damaged and loose. material using a knife and scrapper. Cut back until sound adhering material is reached.

4.4.2 The edge should be undercut to form a beveled edge as-in plaster repair.

4.4.3 Remove all foreign matter from the substrate using a wire brush.

4.4.4 Spray or trowel THERMO-LAG 330-1 onto patch area. Several coat of the material can be applied to achieve the desired film thickness.

Be sure to allow for shrinkage of repair patch by building up a slight dome shape with the patch.

4.5 Cable Re lacement - Re air

'4.5.1 Remove sections, by cutting away material at the side and butt flanges.

4.5.2 Remove fasteners from flanges and carefully remove coated sections.

4.5.3 After work, is completed, reattach envelope system using mechanical fasteners, staples or 18 ga. galvanized tie wires.

4.5.4, Apply a coating of 'GMRO-LAG 330-1,Subliming Coating in the. specified wet thickness to the edges and joints of the reinstalled sections using a trowel or stiff bristle brush to fill in any uncoated areas.

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1 5.0 TOPCOAT APPLICATION 5.1 S ra A lication 5.1.1 Pour Part B into Part A and thoroughly mix using a mechanical mixer.

Mix a minimum of 5 minutes and allow a "sweat in" period of 20 minutes before commencing the application.

5.1.2 Insure that the area to be topcoated is free from loose and foreign matter.

5.1.3 Take moisture meter readings of the applied subliming coated surface using a Delmhorst Moisture Meter (Model DP) or equivalent. 'Obtain a reading of 20 or less before applying the topcoat.

5.1.4 Place mixed material into spray .rig.

5.1.5 Apply topcoat in a smooth even pattern, making sure to criss-cross the area in a continuous film.

5.2 Hand .A lication 5.2.1 Apply a full smooth coat of topcoating using a long nap mohair roller.

Avoid excessive buildup of topcoat in corners and always work to a wet edge of applied topcoat.

6.0 POST APPLICATION PRACTICES 6.1 A clean and orderly condition shall be maintained in the application area. Following the application, all overspray, debris and equipment shall be removed and the area left in a condition acceptable to the owner.

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R 7.0 UIPMKNT SUGGESTIONS 7.1 The most economical and satisfactory method of applying TfKRMO-LAG 330-1 Subliming Coyting is by either airles or air type spray equipment.

7.1.1 Air type spray equipment is recommended for use in spraying cable

.drops and conduit .in order to minimize overspray.

7.1.2 Airless spray equipment is recommended for use in spraying larger sections such as cable trays and large I beams.

A 7.1.3 Suggested complement of spray equipment for both types are shown in Appends B.

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APPENDIX A SCHEMATIC OF SUGGESTED PENETRATING MEASURING DEVICES A

"A" is equal to the desired thickness of the coating.

On measurement the pin portion of the gauge must sink completely, into the layer of the applied coating. Take several readings for each thickness. Fill the hole created by the gauge after measurement is completed.

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I APPENDIX B SUGGESTED COMPLEMENT OF REQUIRED SPRAY EQUIPMENT f

FOR THERMO-LAG '330-1 SUBLIMING COATING APPLICATION AIRLESS SPRAY EQUIPMENT UANTITY DESCRIPTION OF E UIPMENT 1 Each Hydra Spray Pump 45:1 1 Each Air Powered Ram 1 Each Hydra Mastic Spray Gun 1 Each Special Dump Valve 2 Each' RAC III with 0.55 Tips Each Air Agitator 1 Each Air Regulator Kit 1 Each Air Regulator Only with Gauge

.1 Each Air Line Filter 1 Each Air Line Lubricator 5 Each Pump Repair Parts Kits 6 Each Extra Tips with Seals 100 Feet 1 Inch I.D. Hi Pressure Fluid Hose 75 Feet 1/2 Inch I.D. Hi Pressure Fluid Hose 25 Feet 3/8 Inch I.D. Hi Pressure Fluid Hose 25

APPENDIX B (CONTINUED)

AIR TYPE SPRAY E UIPMENT UANTITY DESCRIPTION OF E UIPMENT 1 Each. 10:1 President Spray Pump 1 Each Air Powered Ram 1 Each Heavy Mastic Spray Gun 1 Each Special Dump Valve

2. Each 1/4 Inch or 1/4 Inch "E" Spray Tip 1 Each Air Agitator 1 Each Air Regulator Kit 1 Each .Air Regulator Only with Gauge 1 Each Air Line Lubricator 1 Each Air Line Filter 5 Each Pump Repair Parts Kits 75 Feet 1/2 Inch I.D. Hi-Pressure Fluid Hose 25 Feet 3/8 Inch I.D. Hi-Pressure Fluid Hose 26,

APPENDIX C APPLICATION PROCEDURES STRUCTURAL STEEL ENTITIES 1 0 INTRODUCTION This procedure sets for the sequential steps involved in applying THERMO-LAG 330-1 Subliming Coating System to,structural steel entities and steel storage tanks.

The THERMO-LAG 330-1 Subliming Coating System consists of THERMO-LAG Primer, THERMO-LAG 330-1 Subliming Coating, and where applicable, THERMO-LAG Topcoat.

2.0 SURFACE PREPARATION 2.1 All surfaces to be coated are to be clean, dry, above 40'F. and free from scale, rust and .other contaminants.

2.2 Prepare non-compatible surfaces for coating by applying a barrier coat of THERMO-LAG 351 or THERMO-LAG 351-2 Primer. Never apply the primer directly over a surface previously primed with a zinc based primer without installing a barrier coat. Never apply the primer directly over any hard or glossy 'paint without roughening the surface in accordance with standard, good painting, practice procedures and make sure that the cleaned substrate is compatible with the THERMO-LAG 330-1 Subliming Coating by making cross hatch adhesion testa.

2.3 Blast clean doubtful surfaces to an SSPC-SP6 finish and reprime immediately.

3.0 PRIMER APPLICATION 3.1 Apply the primer to a properly prepared steel surface in one continous coat using spray equipment or a roller. The minimum acceptable dry primer thickness .should be 0.002 inches which is riormally achieved by applying at a rate of 200 square feet, per gallon.

3.2 Measure primer thickness using an approved. magnetic direct reading gauge.

3-3 Make cross hatch adhesion tests, as per Federal Standard 141A, on the primed surface to assure proper adhesion between the primer and the steel substiate prior to 'proceeding with. the application of the THERMO-LAG 330-1 Subliming Coating.

3.4 Make at least one cross hatch adhesion test every twenty (20) square feet of primed surface, area. Any primed surface area which fails the cross hatch adhesion test shall be sandblasted to an SSPC-SPC6 commercial bl'ast finish and then shall be reprimed with TkKBMO-LAG 351 or THERMO-LAG 351-2 Primer.

4.0 THERMO-LAG 330-1 SUBLIMING COATING 4.1 Apply the material in as many passes as required to provide the required film build or thickness, taking care to 'avoid slumping or sagging, of the coating. The thickness which can be safely applied in a single pass will depend upon the temperature, humidity, application technique, and other factors and should be determined at the gob site.

4.2 Apply the material in smooth even passes, taking care to keep the spray gun fan pattern at a 90'ngle whenever possible. Reaching with a spray gun will cause the spray pattern to vary from the and will result in a rougher surface than normal. 90'ngle 28

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4.3 Take frequent wet thickness measurements during the application using- a penetration measuring device such as those shown in Appendix A to ensure that the'coating -is being applied uniformly and at the required wet film thickness. These wet thickness checks shall be made very five square feet or every two running feet of coated surface area. (Note: When taking measurements allow for a shrinkage rate of 25X between the wet and the desired dry film coating thickness.

4.4 Remove excess build up of coating material at edges and )oints by brushing or rolling the surface with a damp sponge roller; 4.5 Spray edges of the substrate from each side to cause the material to wrap around the edge. If the edge coating is not completely closed, use a wet roller or trowel to seal the edge surface.

4.6 Apply Fiberglass Armoring, where required, to the wet surface" after the final pass and use a roller to flatten out any wrinkles and to embed the fiberglass securely. Then apply sufficient coating material to cover the embedded fiberglass.

4.7 Remove all runs, sags, drips or other surface imperfections before the material cures using wet sponge rollers, brushes or hand trowels.

4.8 Take dry film thickness measurements after the applied material has cured. Measurements shall be made using electrical, penetrating or magnetic measuring instruments.

5. 0 TOPCOAT APPLICATION 5.1 Insure that the area to be topcoated is free -from loose and foreign matter.

5.2 Take moisture meter readings of the applied subliming coated surface using a Delmhorst Moisture Meter (Model DP) or equivalent. Obtain a reading of 20 or less before applying the topcoat.

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5.3 Place mixed material into spray rig.

5.4 . Apply topcoat in two continuous coats at a minimum spread rate of 50 square feet per gallon in' smooth even pattern, making sure to criss-cross the area in a continuous film.

6.0 CLEAN UP 6.1 A clean and orderly condition shall be maintained in the application area. Following the application, all overspray, debris and equipment shall be removed and the area left in a condition acceptable to the owner.

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EXHIBIT "2" A'vItH" Q,i3 L N,UC LEAR

!USURERS RTt:. PROOM.(Pt.U Pc evident L

L ANI/MAERP STANDARD FIRE ENDURANCE TEST METHOD TO QUALIFY A PROTECTIVE ENVELOPE FOR CLASS 1E ELECTRICAL CIRCUITS L

1.0 INTRODUCTION

L The ANI/MAERP "Basic Fire Protection Guidelines" (April, 1976) recommend that redundant safety circuits be cut-off. from each other by standard fire walls and floors (Item I, E-6). It has been our experience, that in new L designs, this feature is "built-in". However, for operating plants, and some plants nearing completion, the provision of standard, rated, fire barriers may not be practical. .When this condition exists, the options are to relocate the vital circuit to another fire area, or protect them in place.

"Protecting-in-place" is defined as the ability to maintain the circuit's function during a standard exposure fire by use of a Protective Envelope.

In an effort to provide, for insurance purposes only, a reasonabl'e and re-liable means of "protecting-in-place" these vital circuits, without limiting our Insureds to conventional methods, and giving them the option of using products/materials not normally seen in this type of application, we have developed this test method. In this manner. evaluations of different products/

material's can be made, using a standard test approach.

In developing this Standard .Test Method, the need to maintain circuit integ-rity during a standard "temperature-time" fire exposure was the prime con-sideration. In addition, the ability of the Protective Envelope to contain an internal fire exposure, was also considered important; It should be emphasized that this Standard Test Method in no way decreases our requirements for fixed automatic fire suppression systems nor will considered, the equivalent of rated fire barriers, where required. Its intent it be is to provide a means for "protecting-in-place" redundant cable systems in existing plants, or unusual situations in new designs.

L

>4 Embody. Sate 245/ 270 Faengton P~enue/ Foregtai Ceeectevt 0o032/ tZ86V"/385 ~ Cng. Oopt. <203> 0 7-V5/ TLXNo b43-CS

7/79 SUGGESTED TEST LAYOUT - TEST METHOD 1 EXPOSURE FIRE TEST CABLE PROTECTIVE ENVELOPE (Note 1.)

PIRE STOP FIRE STOP TEST~

.OVEN~ i l l l I I FRONT VIEM END VIEM (NO SCALE)

NOTE 1: 7140 PROTECTIVE ENVELOPES TO BE TESTED. ONE LOADED TO MAXIMUM (4OQ)

DESIGN AND ONE LIGHTLY LOADED. (ONE LAYER).

SUFFICIENT CIRCUITS TO BE MONITORED TO DETECT FAILURE; CIRCUIT TQ CIRCUIT, CIRCUIT TO SYSTEM, OR CIRCUIT TQ GROUND.

VARIOUS TYPES OF CABLE; SUCH AS POMER, CONTROL AND INSTRUMENTATION.

CABLE SHOULD NOT EXTEND MQRE THAN THREE FEET OUTSIDE THE TEST OVEN NOTE 2: DUE TO FURNACE DESIGN, IT MAY BE NECESSARY TO ENTER AND EXIT THE.

FURNACE ON THE TOP OR THE SIDE.

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7/79 SUGGESTED TEST LAYOUT - TEST METHOD 2 INTERNAL FIRE TEST i COTTON WASTE (OPEN AT BOTH ENDS) CABLE PROTECTIVE ENYELOPI 6ll t(OTE 1: COTTON WASTE SHALL BE PLACED OVER THE ENTIRE TOP SURFACE OF THE TEST SYSTEM AND A 'SAMPLE SYSTEM & INCHES. BELOW THE TEST SYSTEM.

NOTE 2: THE CABLES USED IN THE TEST SHALL BE REPRESEt(TATIVE OF THE CABLE USED AT THE SITE. LOADINGS SHOULD BE 20K FILL WITH RANDOM LAY.

THE CABLES IN THE TRAY SHALL BE IGNITED USING THE "OIL BURLAP" METHOD AS OUTLINED IN IEEE/ICC/"G 12-32, 'OAKED

, DATED 6/27/73, OR OTHER ACCEPTABLE FLAME SOURCE",

DEPENDIt(G ON DESIGN AND OPERATING CO'(DITIOt(S OF THE COATIt(G. THE FLAME SOURCE SHALL BE LOCATED AT THE MID-POINT. OF THE CABLE SYSTEM. THE INTENT BEIt(G TO-PROVIDE AN IGNITION(/FLAME'OURCE THAT IS OESIGt(ED TO LAST APPROXI-ttATELY 20 MIt(UTES AND ACTIVATE THE PROTECTIVE ENVELOPE.

OBSFRVATIO (S 'AND THERt OCOUPLE READIt(GS SHALL BE tAIt(TAINED FOR ONE HOUR FROM THE POIs(T OF IGNITION OF THE "FLAME SOURCE".

2.1 SCOPE 5 PURPOSE 2.1 The purpose of this test is to qualify for insurance purposes a Protective Envelope for Redundant Class 1E Cables in Nuclear Power P ants when ocated in t e same T re area. re area s e ned aeataat portion of a building that is encompassed by rated fire walls ~

cHlings and floors.) The maintenance of circuit integrity in these Class 1E safety circuits during a postulated fire is of prime impot tance.

2.2 The intent of this Test Method is to establish a protective envelope that maintains circuit integrity for safety circuits when:

-Redundant safety circuits, located in the same fire area, are exposed to a fire outside of the cable system, or

-Redundant safety circuits, located in the same fire area, are exposed by a fire originating in an adjacent "protected-in-place" cable system, or

--Redundant safety circuits, located in the same fire area, are

,subjected to m'echanical impact damage as simulated by a hose stream, or other impact test.

3. 0 ACCEPTANCE CRITERIA ANI/NERP Acceptance will be based on the completion and review of all of the following:

3.1 Successful passage of fire tests, as outlined in Section 3.4 of this test method, and submittal of necessary test documentation as prepared by a recognized testing laboratory or consultant.

3.2 A guality Control/guality Assurance Program for the system/design should be submitted for review. Complete details covering installation procedures, physical characteristics, identification methods, sample forms for third party sign-off, etc. should be included.

The gC/gA Program is considered an integral part of the acceptance process and variations between the gC/gA Program for the test and the program developed for the actual installation will not be acceptable.

3.3 All materials and components in the completed system, with the excep-tion of the cable, shall be rated as non-combustible i.e., Flame Spread, Fuel Contributed, and Smoke Developed ratings of 25 or less.

Materials or components that are combustible or hazardous during the installation phase, should have a material hazard analysis performed with procedures developed for quantities on hand, storage practices, and precautions to be taken during installation.

3.4 The Cable Protective Envelope shall be exposed to the following fire endurance and hose stream tests. Test configuration and details should be submitted for review and covalent prior to test.

3.4.1 Test I- Ex osure Fire - The Protective Envelope shall be exposed to t e stan ar temperature-time curve found in ASTM E-119-76 (ANSI A2.1) for a minimum of one hour. Sketch 0 I outlines a

~su ested test configuratfon.

3.4.2 Hose Stream Test - Immediately following Test I, accessible sur-following t t4 E hose stream tests.

1P hIlh The hose stream u tdt shall be fth I/2 applied'or a minimum of 2 minutes, without de-energizing the circuits.

PROPER SAFETY PRECAUTIONS SHALL BE EXERCISED. 'ne of the follow-ing tests shall be used:

1. The stream shall be delivered through a 2 I/2 inch national standard playpipe equipped with I I/8 inch tip, nozzle pressure 'of 30 psi, located 20 feet from the system.

or

2. The stream shall be delivered through a I I/2 inch nozzle set at a discharge angle of 30'ith a nozzle pressure of 75 psi and a minimum-discharge of 75 gpm with the tip of the nozzle a maximum of 5 the system.

ft. from F

or

3. The 'stream shall be delivered through a I I/2 inch nozzle set at a discharge angle of 15'ith 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 system.

NOTE: fl is the preferred test.

3.4.3 Test II - Internal Fire - For systems/designs that require heat to act vate t e rotective Envelope, the system shall also be subjected to Test II - Internal Fire. Sketch 82 outlines a

~su sated test configuration.

3.4.4 Cable Const uction & Test Details 3.4.4.1 Cables shall be energized for circuit monitoring during Test Method I. For the purpose of this test

,method, "energized" means sufficient current to monitor failure.

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j 3.4.4.'2 Cable constructions shall be representative of cable used at the site. Cable tray loadfngs shall be fn acc-ordance. with suggested test layouts.

3.4.4.3 In both test methods, cable tray construction shall be

'epre'sentative of actual site conditions, where applicable.

3,4.4.4 Cable, system supports .shall be those currently found fn nuclear power plants and follow accepted installation procedures. Care should be exercised fn using only su'pports that are necessary. for the test. Supports that

-are used for the Protective Envelope shall be par of the

'final installed t

design."'.4.4.5 Thermocouples shall be located strategically on the surface and at .one foot- intervals 'fn the cable system

. and temperatures recorded throughout the test.

3.4.4.6 Fire stops or breaks, ff used, shall be acceptable to

.American Nuclear Insurers. Failure of the fire stop or break shall not necessarily constitute a failure of the the Protectfve envelope.

3.5 The tests shall be constituted a failure ff any of the following occur:

1. Circuits fail or fault during the fire test as r'equfred fn Test I or fail during the hose stream test.

2. Cotton waste fn Test II fgnftes during. the test period."

3.6 The minimum fire endurance,rating acceptable for Test I shall be one hour. If longer ratings are desired, they shall be fn one hour increments, such as-2 hr. and 3 hr. ratings.

4.0 FINAL ACCEPTANCE Prior to any fnstallatfon at plants insured .by Amerfcan Nuclear Insurers, or Mutual Atomfc Energy Reinsurance Pool, complete plans outlining system to be installed, location, etc. shall be submitted for review and acceptance.

JULY, 1979

I I

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FIRE ENDURANCE TESTS ON I

'ABLE TRAYS, CONDUITS AND CABLE DROP ASSEMBLIES PROTECTED WITH THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM JUNE 1981 TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 '314) 352-8422 4 Telex:,44-2384

I FIRE RESISTANCE TESTS ON CABLE TRAYS,,CONDUITS AND CABLE DROP ASSEMBLIES PROTECTED WITH THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM GENERAL:

This reports the results of a fire test conducted at TSI's High Temperature, ASTM E119, Fire Simulation Facility. The purpose of these test was to determine the degree of fire protection offered by THERMO-LAG 330-1 Subliming Coating Envelope System to. the'ollowing:

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1. Solid Back - Cable Trays: 100% visually loaded with cables; 2: Ladder Back - Cable .Trays: 100% visually loaded with cables.

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3. Conduit: Schedule 40 Steel, 4 inch.I.D.

100% visually. loaded with cable's.

4. Cable Drop Assemblies: 100% visually loaded with cables.

t The cross sectional dimensions of, the'olid *and Ladder Back Cable Trays were 14" x 4" x 4".

All assemblies were shaped in a facsimile of a "U". The length of each "U" section was 24".

.The tests were conducted in the fire environment described by the ASTM E119 procedure. The 'flame temperature =was measured by means of chromel/alumel thermocouples. The results of a typical time/temperature response is shown in the TSI ASTM E119 'Fire Simulation Facility, Fire Temperatures curve. The cable instrumentation consisted of six (6) chromel/alumel thermocouples attached to the surface of the center cable.

Two (2) thermocouples were located at the upper horizontal section, at the vertical section and at the lower horizontal section.

The thickness of the THERMO-LAG 330-1 Subliming Coating Envelope System was circa 0.5 inches. The Subliming Coating was reinforced by means of THERMO-LAG Stress Skin Type 330-69 (which is a TSI proprietary product). The method of application is described in detail within the following sections.

In addition throughout the tests, the cables were energized by means of a 24 volt, DC, power source. The continuity of current flow was measured by means of light bulbs affixed to the opposite end of'he cable and attached to a display console mounted in front of the fire simulation facility.

FIRE TEST AND RESULTS:

The test articles were placed inside TSI's high temperature, fire simulation facility, exposing all.sides of the test assemblies to a fire uniform i~ intensity and character-. Furnace and temperatures of the respective test articles are shown in the curves which follow at the end of this report.

'The maximum temperature exhibited .by all .thermocouples placed on the surface of each cable jacket for all cable trays, conduits and cable drop assemblies clearly demonstrate that they meet ANE and Federal Regulation 10CFR Part" 50, Appendix R, Paragraph G prerequisites, for fire protection, of safe hot shutdown capability.

None of the thermocouples exceeded 400'F. Post test examination of the cable -have failed to show an deterioration of the jacket or the resistive liner on the cable. There were no shorts exhibited throughout the tests.

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ENGINEERING REPORT ON ONE - HOUR ASTM-E-119 FIRE SIMULATION FACILITY FIRE TEST FOLLOWED BY A SHORT TERM WATER HOSE STREAM IMPACT TEST ON A NUCLEAR FACILITY CLASS 1E CABLE CONDUIT'SSEMBLY Prepared for TSI, INC.

3260 BRANNON AVENUE ST. LOUIS,.MO 63139 Wesson And Associates, Inc.

P. 0. Box 1082 Norman, Oklahoma 73070 (August 1981)

LESSON AND ASSOCIATES, INC.

e TABLE OF CONTENTS

~ection .

~Pe e No..

LIST OF FIGURES ~ 1 ~ ~ 0 ~ ~ 0 ~ ~ ~ 0 ~ 0 0 0 0 ~ 0 ~ 0 ~ ~ ~ ~ 0 0 ~ 0 0 ~ 0 ~ 1 e ~ ~ ~ ~ ~ ~ 0 0 ~ ~ 0 0 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ ii LIST OF TABLES ~ so ~ oooooo ~ oooo ~ seooo ~ ~ oo ~ 0000 ~ ~ ~ esses ~ ~ ~ 0 ~ 0 ~ ~ ~ ~ ~ 00 ~ 0 ~ 0 ~ eo iii I ~ MKSUCTION ~ ~ ~ ~ ~ 0 0 0 ~ 0 ~ ~ ~ 0 0 1 ~ 0 ~ 0 0 ~ ~

0 0 0 0 ~ 0 ~ 0 0 0 ~ ~ 0 ~ 0 0 0 ~ 0 0 0 ~ 0 ~ ~ 0 ~ ~ 0 0 ~ 1 ~ ~ ~ 0 II ~ TEST PROCEM 0 0 ~ ~ 0 0 ~ ~ ~ ~ 0 ~ ~ 0 ~ 0 0 ~ 0 ~ 0 ~ 0 ~ ~ 0 ~ 0 0 0 ~ 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~ 0 ~ 0 0 ~ 0 ~ ~ 0 0 ~ ~ 2 A. One HOur Fire Test 0 ~

~ ~ ~ ~ 0 ~ ~ 0 ~ ~ 0 ~ io 0 0 0 0 0 ~ 0 ~ ~ ~ 0 ~ 0 0 ~ 0 0 0 ~ ~ 0 0 ~ ~ 0 ~ ~ 0 0 ~ ~ 0 0 ~ ~ 1 ~ 2 Bo Water Hose Stream Test ~ ~ ~ ~ ~ 0 0 ~ ~ ~ 0 ~ ~ ~ 0 ~ 0 ~ 0 ~ ~ 0 ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ ~0 ~ ~ ~ ~ 0 0 ~ ~0 0 ~ ~ ~ 2 C. Electrical Circuitry Continuity Tests ................................ 5 TEST SPECIN' ~ ~ ~ ~ ~ 0 ~ ~ ~ 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ 0 0 ~ 0 ~ 0 ~ 0 0 0 ~ 0 0 ~ 0 ~ 0 0 ~ ~ ~ ~ ~ ~ ~ 0 1 0 ~ ~ ~ ~ ~ ~ 0 0 0 ~ 0 7

h. Preparation of Test Specimen ... ~ " ~ ~ -- ~ ~ ~ -- . ~ ~ ~ ~ -- - --- ~

~ ~ ~

7 Be Test Specimen Physical Details ~ ~ ~ ~ ~ ~ 00 ~ ~ ~ ~ 000 ~ ~ ~ ~ ~ ~ 00 ~ ~ ~ ~ ~ ~ 00 ~ 0 ~ ~ 0 ~ ~ ~

7 C. Verification of Subliming Coating Envelope Thickness ~ 00 ~ 0 0 ~ ~ ~ ~ esses ~ 0 PIRE TEST INSTRURATIN 0 ~ ~ ~ ~ 0 ~ ~ 0 ~ ~ ~ 0 ~ 0 ~ 0 ~ ~ ~ ~ ~ 0 "0 ~ ~ ~ 0 ~ ~ ~ ~ ~ 0 ~ 0 ~ 0 0 ~ ~ ~ ~ 0 ~ 0 ~ 12 V FIRE TEST OBSERVATIONS ~ ~ 0 0 ~ 1 ~ ~ ~ 0 ~ ~ 0 ~ 0 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

'0 0 ~ ~ ~ ~ ~ 0 0 0 0 0 ~ ~ ~ ~ 0 A. Details of Pire Test 1 0 0 1 0 ~ 0 ~ 0 ~ ~ 1 0 0 ~ 0 ~ 0 0 0 1 0 ~ 0 ~ 0 0 ~ 0 ~ ~ 0 0 ~ 1 ~ 0 0 ~ ~ 0 ~ ~ 0 ~ 0 0 0 ~ 15 B Visual Observations Made During The Fire Test 0 ~ ~ ~ ~ 0000 ~ ~ 0 ~ ~ 0 ~ ~ 00 ~ 00 ~ ~ 15 C. Details of The Water Hose Stream Test 15 D. Visual Observations Made During The Water Hose Stream Test ~ 0 ~ ~ ~ 0 0 ~ ~ ~ ~ 17 16ULTS OF THE FIRE TEST 1 ~ ~ ~ 0 0 0 0 0 0 0 ~ ~ 0 ~ ~ 0 0 0 ~ ~ ~ ~ 0 ~ ~ ~ 0 0 ~ 0 ~ ~ ~ ~ 0 ~ 0 ~ 0 ~ 00 ~ ~ 000 17 VIIe iKSULTS- OF WATER HOSE STlKAM TEST ~ 0 0 0 0 ~ ~ ~ ~ 0 0 0 ~~0 ~0~0~001~00~~0~ 000000 ~ 00 20 VIII0 CONCLUSIONS AND OBSERVATIONS ~0 ~~ 0 0 ~ ~ ~ 0 ~ 0 ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~0 0 0 0 ~ ~~ 000 ~ ~ 0000 ~ 00 REFERENCES ~ 0 ~ ~ ~ ~ ~ 0 ~ ~ 00 ~ 00000 ~ 110 ~ 000 ~ 00 ~ ~ 0~~0~~ ~ 0000 ~~~ ~ ~ ~ ~ ~ ~ 28 Xo BXHIBITSl 1. TSZ Technical Note 80181, "Thermo-Lag 330-'1 Subliming Coating Envelope System Application Procedures, dated 8/81

2. ANI/RAERP STANDARD FIRE ENDURANCE TEST METHOD TO gtnuZZV a PROTECTIVE ENVELOPE FOR CLASS lE ELECTRICAL CIRCUITS (NOT DATED)

3. Copy of Original Honeywell>>Brown Chart Recordirig of Tllezaacouples Installed Inside the TSZ Electrical Cable Conduit> dated 8/8/81

~n i lVzssoN AssorzaTEs, hcc

LIST OF FIGURES FIGURE NUMBER FIGURE TITLE PAGE NO.

ASTM-E-119 TEST METHOD TIME-TEMPERATURE RELATIONSHIP ~ . .~ . ~ . ~ .. 3 ASTM-E-119 Test Method Fire Test Set-Up Incident Heat Flux Level as a Function of Fire Duration/Exposure Time ............... 4 Test Specimen Cable Conduit Assembly Cable Integrity Monitoring C xrcuits o ~ ~ ~ o ~ ~ ~ ~ o e ~ o ~ ~ ~ ~ e ~ o ~ ~ ~ ~ ~ s ~ o ~ o ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ 6 Close-Up Photograph of the Cable Con'duit Test. Speciemen Thermo-Lag 330-1 Subliming Coating Envelope System Installed on a Metered Condua.t Joint ......................;..................... 8 Schematic Illustration of the Cable Conduit Test Specimen After Installation of the Thermo-Lag 330-1 Subliming Coating Envelope System .......................................... 9 Photograph of the Cable Conduit Test Specimen, Mounted on the Face Plate of the TSI ASTM-E-119 Fire Simulation Facility ........ 10 Location of Test Thermocouples in the Cable Conduit Test Specimen . 13 Comparison of the Required ASTM-E-119 Test Method Time-Temperature History with the Actual Measurements During the One Hour ASTM-E-119 Test on the Thermo-Lag 330-1 Subliming Coating System Envelope for an Electrical Cable Conduit Assembly ......................... 16 Photograph of the Thermo-Lag 330-1 Subliming Coating Envelope System Protected Cable Conduit with Test Instrumentation and Mounted for Insertion Into the Fire Test Facility 17 10 Photograph of Class "A" 1250 GPM Water Pumper Used foi the Water Hose Stream Test on the Cable Conduit Test Specimen After the Requued One-Hour Fare Test 19 TSI ASTM-E-119 Fire Simulation Facility: One Hour Fire Test on Thermo-Lag 330-1 Subliming Coating Envelope System for a Cable Conduit: Temperature Response Characteristics of the Electrical Cables Inside the Conduit ..........."...,..... .,.................

~ 21 12 22 13 23 14 Photograph of the 'Iniation'f the Water Hose Stream Impact Test on the Fire Tested Cable Conduit Test Specimen. 24 15 Photograph of the Full Capacity Water Hose Stream Impact test on the Fire Tested Cable Conduit Test Specimen 16 Photograph of the Cable Conduit Test Specimen After the One Hour Fire Test and the Short Term (3 Minute) Water. Hose Stieam Test .... 27 LESSON AND ASSOCIATES, INC.

I LIST OF'TABLES TABLE NUMBER TABLE TITLE PAGE NO.

Identification of Electrical Cables in the Cable Conduit Test Specimen ll Location of Test Thermocouples ..................;............... l4 LESSON AND ASSOClATES, INC.

ENGINEERING TEST REPORT ON ONE HOUR ASTM-E-119 FIRE SIMULATION FACILITY FIRE TEST FOLLOWED BY A SHORT TERM WATER HOSE STREAM IMPACT TEST ON A NUCLEAR FACILITY CLASS lE CABLE CONDUIT ASSEMBLY I ~ INTRODUCTION The basic purposes of this Engineering Test Report are to present and discuss the experimental results obtained from a "One-Hour" ASTM-E-119 Fire Test and a short texm (24 minutes, minimum duration) Water Hose Stream Impact Test on a Thexmo-Lag 330-1 Subliming Coating Envelope System for a Nuclear Plant Class 1E electrical circuit 'Conduit Assembly'.

According to the manufacturer (TSI, Inc.), all of the Fire and Water Hose Stream Tested Thexmo-Lag 330-1 Subliming Coating System materials vere manufacturered and produced in strict accordance with all of the applicable Quality Control and Quality Assurance Requirements presented in Appendix 'B'o BTP-9.5-1, NRC Supplemental Guidance, Nuclear Plant Fire Protection Functional Responsibilities, Administrative Controls and Quality Assurance (see Reference '1').

Also, according to the manufacturer of the Thermo-Lag 330-1 Subliming Coating Envelope System (TSI, Inc.), the Envelope System utilized for the testing as reported herein vas prepared in strict compliance with the Application Procedures as presented in Exhibit '1'o this Engineering Test Report.

The Nuclear Plant Class lE Electrical Cable Conduit Assembly successfully passed all of the a licable Desi n, Performance and Operational Criteria specified in the a li.cable sections~-ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective.Envelo e for Class lE Electrical Circuits see Exhibit 2 to this report, as well as a licable Re irements in the Nuclear Re ulator Commission Final Rule, 10 CFR Part 50: Fire Protection Pro ram for 0 crating Nuclear Power Plants.

LESSON AND ASSOCIATES~ INC.

L

II. TEST PROCEDURES The Test Procedures involved in the Test Program reported herein specified the use of 'Specific'rocedures for the One-Hour Fire Test, the Water Hose Stream Test and the Cable Conduit Assembly Electrical Circuitry Continuity Tests. Each of these three (3) separate Test Procedures are summarized in the following sub-sections.

A. One-Hour Fire Test:

The Fire Testing Procedures are specified in Paragraph 3.4.1 of ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective Envelope for Class lE Electrical Circuits (see Exhibit 2 to this report) . Basically this one-hour Fire Test is a one hour exposure to the temperature-time curve of ASTM-E-119-76 (ANSI A2.1) . For ease of reference, Figure 1 presents this ASTM-E-119-76 Time-Temperature Curve for the exposure period of interest.

As shown in Figure 1, the Test Set-Up Internal Air Temperature starts at the prevailing ambient air temperature (Test Room Temperature), reaches a temp-0 0 erature of about 1000 F after five (5) minutes, a temperature of about 1550 F after 30 minutes and a temperature of 1700 F 'after one-hour. Based upon widely accepted criteria, this variation in the time-temperature curve also means a variation in the Incident Heat Flux upon any 'Target'xposed to the this time-temperature relationship. It i.s commonly accepted'hat the One-Hour ASTM-E-119 Test Method produces a 'Time Averaged Incident Heat Flux'f about 24,500 2 2 BTU/HR-FT for one-hour's exposure, 34,500 BTU/hr-ft for two hours exposure, 1

and 42,000 BTU/hr-ft for three hours exposure, as is shown in Figure 2. It is also important to note, for subsequent experimental data analyses, that in the ASTM-E-119 Test Method about 20 percent of the heat transfer is by con-vection and about 80 percent is by radiation. Thus, the actual amount of the 80 percent radiant heat that will be 'absorbed'y the 'Target's strongly dependent upon the Target's Radiation View Factor, the spectral emissive properties of the natural gas flames and the spectral reflectance Properties of the Thermo-Lag 330-1 Subliming Coating Envelope System external surface.

B. Water Hose Stream Test:

The Water Hose Stream Test Procedures are specified in Paragraph 3.4.2 of ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective Envelope

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I for Class lE Electrical Circuits (see Exhibit 2 to this report). 'this Exhibit permits the use of 'one'f 'three'pecific Test Procedures. In the Water Hose Stream Test reported herein, the Test Procedures specifiec by Paragraph 3.4.2 (3) was utilized. This procedures is as follows:

"The stream shall be delivered through a 14 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 feet from the system."

This procedure-also requires that the hose stream be applied (to the system) for a minimum of 24 minutes.

C. Electrical Circuitr Continuit Tests:

Paragraph 3~5 of ANI/HAERP Standard Fire Endurance Test Method to Qualify a Protective Envelope for Class lE Electrical Circuits (see Exhibit 2 to this report) requires the following Criteria be meet for the one-hour Fire Test:

"3.5 The tests shall be constituted a failure if any of the following

. occur: I'

~ Circuits fail'x fault during the fire test as required in Test 1 .(ASTM-E-119-76'ne-hour exposure test) or fail during the hose .

stream test."

Thus, one of the required test conditions is to continuously monitor a sufficient number of electrical circuits in the Test Specimen to detect failure circuit to circuit (conductor to conductor short circuits); circuit to system

.(conductor continuity); and circuit toground (short circuits, conductors to ground) Monitoring all of the conductors in the Test Specimen Electrical Cable

~

Conduit Assembly would be a very arduous, if not impractical, task. There-fore, selected cables in the Test Specimen Cable Conduit Assembly'were instru-mented to monitor each of the following three parameters:

1. Two cables, one power and one control cable in the Test Specimen Cable, Conduit Assembly was connected to a short circuit detection circuit as shown in Figure 3-A.

2 Two cables, as identified in,C.1 above, was also connected to a continuity

~

monitoring circuit as shown in Figure 3-BE

3. Two cables, as identified in C.l above, was connected- to a ground short cir-,

cuit detection circuit as shown in Figure 3~..

This procedur'e gives a total of six (6) instrumented cables in the Test Specimen Cable Conduit Assembly for monitoring of cable integrity during both the one-hour Fire Test and the subsequent Water Hose Stream Test.

WEssoN AND Assoc',uEs, INc.

Typical Cable t

+

24VDC Signal A - Typical Circuit to. Circnit hfonitoring Channel

+

24VDC Signal 8 - Typical Circait'to System Monitorhxg Channe 24VDC Signal C - Typical Circ@it to Ground .'vfonitoring Channel FIGURE 3: TEST SPECIMEN CABLE CONDUIT ASSEMBLY CABLE INTEGRITY MONITORING CIRCUITS

III. TEST SPECIMEN A. Pre aration of Test S ecimen Protective Envelo e:

Suggested Test. Specimen Layouts are presented in ANI/MAERP Standard Fire Endurance Test Method to Qualify a Protective Envelope for Class lE Electrical Circuits (see Exhibit 2 to this report). In this section of the Test Report, we will summarize the manufacturer's preparation of the Cable Conduit Test Assembly's Thermo-Lag 330-1 Subliming Coating Envelope System.

As explained in detail in Exhibit 1 to this report, the protective envelope consists of wrap around arrangement which completely covers the Cable Conduit Assembly exterior surface. The wrap around envelope consists of an inner layer of Thermo-Lag Stress Skin Type 330-69, a 0;625 inch thick 'wet'ayer of Thermo-Lag 330-1 Subliming Coating which is airless sprayed into the Stress Skin (this Thermo-Lag 330-1 Subliming Coating will have a 'dry'hickness of about 0.469 inches due to the 25 percent shrinkage factor associated with this type coating material), an outer covering of light weight Fiberglass Cloth Armoring and a thin finish coat of the Thermo-Lag 330-1 Subliming Coating material (sufficiently thick to just cover the Fiberglass Armoring). The detail preparation and Thermo-Lag 330-1 Subliming Coating material Application Procedures are presented in Exhibit 1 to this report. A typical close-up view of the finished Thermo-Lag 330-1 Subliming Coating Envelope System for an Electrical Cable Conduit Assembly is presented in Figure 4. As shown, the Thermo-Lag 330-1 Subliming Coating Envelope System conforms quite closely to the contour of the Cable Conduit, even at the mitered 9Q joints and gives a relatively smooth fihal finish.

B. Test S ecimen Ph sical Details:

As shown by Figure 5, the Test Specimen Cable Conduit is a standard electrical cable conduit section fabricated in the form of a U-Bend. The U-Bend dimensions are 54 inches outside diameter, 36 inches long by 32 .inches high. A total of eight (8) electrical cables are incorporated in the Test Specimen. Table I presents a listing of the individual electrical cables.

Figure 6 presents a photograph of the Cable Conduit Test Specimen with the Thermo-Lag 330-1 Subliming Coating Envelope System completely installed and mounted for insertion into the TSX ASTM-E-119 Fire Simulation Facility.

LESSON AND ASSOCIATES, INC.

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l'GURE 4: CLOSE-UP PHOTOGRAPH OF'llE CABLE CONDUIT TEST SPECIMEN TilERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM INSTALLED ON A MITERED JOINT

'WESSON AAD ASSOCIATES, INC.

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. SYSTEM

I I

TSI ASTH-E-119 FIRE CABLE CONDUIT TEST SPECIHEN SIMULATION FACILITY READY FOR INSERTION INTO TEST l FACILITY FOR TIIE TEST ONE HOUR FIRE I

I FIGURE 6: PHOTOGRAPH OF THE CABLE CONDUIT TEST SPECIMEN MOUNTED ON THE FACE PLATE OF TlfE TSI ASTM-E-119 FIRE SIHULATION FACILITY I

I WESSON AND ASSOCIATES, INC.

TABLE I IDENTIFICATION OF ELECTRICAL CABLES IN'HE CABLE CONDUIT TEST SPECIt 1EN CABLE NUMBER ELECTRICAL CABLE IDENTIFICATION 23 3C W032-5 ADD7530 ADD7438 24 12C W045-15 07054 07004 2C W121 0000078 - 0000228 Brown & Root 27 3C W023.5 ADD7530 - ADD7438 28 12C W045-15 '07054 07004 29 .2C W121 0000078 0000228 Brown 6 Root 30 3C W023.5 ADD7530 ADD7438

SUMMARY

Two (2) No. 2C Cables Three (3) No. 3C Cables Three (3) No. 12C Cables Total: Eight (8) Electrical Cables in Conduit Assembly

-ll-WZSSON A'AD ASSOCIAVES, ImC.

C. Verification of Sublhnin Coatin Envelo Thickness:

Using a sharp pointed penetration type'etallic gauge, the Author verified that the Thermo-Lag 330-1 Subliming Coating Envelope System varied in dry film thickness from a lcw of 0.450 inches to a high of 0.480 inches. This is mell within the ccemercially accepted dry film thickness measurements of"+ 5 percent of the nominal thickness for airless spraying techniques. In the specific case of the Test Specimen Cable Conduit, the 'ncmjtinal dry film thickness'hould be 0.469 inches for a 'vet film thickness'f 0.625 inches.

The Author also verified that the cured surface of the Thermo-Lag 330-1 Subliming Coating Envelope System had not cracked, spalled or flaked and that the surface finish appeared to be a conventional finish for this type fire-proofing material (see Figure 4 for closeup photograph of the protective envelope finish) .

XV~ TEST INST1NMENTATION The Test Instrumentation consisted of the folDnringx A. Twelve (12) Cl~el/Alumel Thezmocouples for measurement of electrical cable

~ surface temperatures. The locations of the thezmocouples- are shcwn schematically in Pigure 7. Table II presents a listing of the temperature measurement for each of the twelve (12) Test Thezmocouples.

B. The tvelve (12)- electrical cable Test Theaaocouplc readings vere autcxaatically recorded throughout the duration of the fire test on a multi~int Honeyvell-Brcwn Chart Type Recorder. Exhibit 3 presents a copy of the original Honeywell-Brcwn Chart Recordings for the duration of the fire test C Shc (6) Chranel/Alumel Thezmocouples vere used for air temperature measurements inside the TSI lLSTN-E<<119 Pire Simulation Facility These thezmocouple readings mre continuously recorded on a second Honeywell-Brcwn Quart Recorder for the duration of the fire test..

D. Por manual control of the AS%8-B-119 Fire Simulation Pacility time-temperature relationship, two (2) Omega Digital Temperature Recorders, Scdel 175 and 179$

wsre also used. A viusal reading was taken every five minutes fraa these digital

. recorders for use in the control of the ASTM-E-119 Fire Simulation Facility internal air temperature control through manual ad)ustment of the natural gas flaw coatro1 valves for each natural gas burner.

18" 8 II I 28 8 II 29 27 30 1 6II 25 26

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24 8 II 23 8 II 36" NOTE: Not to Scale FIGURE 7: LOCATION OF TEST THERfOCOUPLES IN THE CABLE CONDUIT TEST SPECIMEN TABLE II .

THERMOCOUPLE ELECTRICAL NUMBER CABLE NK4BER THERMOCOUPLE LOCATION i@2 29 2C W121 - 0000078 - 0000 228 Brown 6 Root 354 30 3C W023.5 ADD7530 ADD7438 5@6 28 12C W045-15 - 07054 - 07004 7&8 27 3C W023.5-15 ADD7530 ADD7438 25 12C W045-15 07054 07004 10 26 2C W121 0000078 0000228 Brown 6 Root 24 12C W045-15 - 07054 - 07004 12 23 3C W023.5 ADD7530 ADD7438 NOTE: SEE FIGURE 7 FOR PHYSICAL LOCATION OF TEST THERMOCOUPLES WESSON AND ASSOCIATFS, INC.

Figure 8 presents a comparison of the ASTM-E-119 Test Method required Time-Temperature Curve with the 'maximum thermocouple readings'nd the overall average of the thermocouple readings for the thermocouples located in the immediate vacinity of the Cable Conduit Test Specimen. As shown by the Figure 8 comparisions, the actual TSI ASTM-E-119 Fire Simulation Facility time-temperature curve slightly exceeds that required by the Test Method as specified in Exhibit 2 to this report.

E. Figure 9 presents a photograph of the instrumented Cable Conduit Test Specimen ready for 'insertion into the TSI ASTM-E-119 Fire Simulation Facility. This PHOTOGRAPH was made just prior to the start of the One-Hour Fire Test.

V. FIRE TEST OBSERVATIONS A. Details of the Fire Test:

The Fire Test required by Exhibit 2 to this report, was conducted on 7,August 1981. The Fire Test was started at 11:58 AM and w'as concluded at 1:03 PM. The actual Fire Test Duration was One-Hour and Five (5) Minutes with exposure to the Figure 8 TSI ASTM-E-119, Fire Simulation Facility time-temperature curve.

The Exhibit 2 required fire testing time is one-hour, minimum with exposure to the ASTM-E-119-76 (~NSZ A2.1) time-temperature curve, as also shown in Figure 8.

The twelve (12) electrical cable surface temperature measurements were recorded once every 3-minutes (15 seconds between individual thermocouple readings) by the Honeywell-Brown Recorder.

B. Visual Observations Made Durin the Fire Test:

The Author made the following visual observations during the fire test:

1. No smoke was observed to come from within the cable conduit test assembly at, any time during the fire exposure period. This would indicate that all of 1

the electrical cable were running below the cable covering decomposition temperature range.

2. After about 50 minutes of fire exposure, 'slight'racking was observed to occur'in the Cable Conduit protective covering. This is a normal occurrence in the 'char formation'f the Thermo-Lag 330-1 Subliming Coating Envelope System.

C. Details of the Water Hose Stream Test:

Due to the previously noted Test Requirements for a- 14 inch fire hose for LESSON AND ASSOCIA'fES, INC.

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conducting the Water Hose Stream Test on the Cable Conduit Test Specimen after the One-Hour Fire Test, arrangements were made with the City of St. Louis, MO, Fire Department for the use of one of their Class "A" Fire Truck Pumpers for conducting the required test. Figure 10 presents a photograph of the Fire Apparatus that was actually used to conduct the Water Hose Stream Test on the fire exposed Cable Conduit Test Specimen.

For the Water Hose Stream Test, as required by Exhibit 2 to this report (see Paragraph 3.4.2 (3) of Exhibit 2), the following conditions were used:

1. Pump discharge pressure: 90 psig

2. 100-feet of lh inch diameter fire hose with a 14 inch diameter Akron Brass adjustable stream discharge nozzle. Nozzle /set at 15 degrees angle for the Test with the nozzle'perator (a Fire Department employee) set at 10 feet from the Fire Exposed Cable Conduit Test Specimen.

3. The pump discharge setting, the 100 feet of lb inch diameter fire hose and the 14 inch diameter water discharge nozzle resulted in a water flow rate and discharge stream angle which exceeds the minimum requirements of the Exhibit 2 Water Hose Stream Test (the Test water flow rate 'is specified as 75 GPM; the actual test set-up resulted in a water flow rate very close to 95 GPM , based on the manufacturer's rating for the water discharge nozzle).

D. Visual Observations Made Durin The Water Hose Stream Test:

1. The Water Hose Stream Test was conducted on 7 August 1981. The actual Vater Stream Impact Test was started at 2:40 PM and was stopped at 2:43 PM. The Water Stream Test duration was 3-minutes, as compared to the Exhibit 2 Require-ment of 24 minutes, minimum.

2. The 15 degree dispersed water hose stream did not have .any visible adverse effect upon the physical integrity of the 'char formation'n the fire tested Cable Conduit Test Specimen.

VI. RESULTS OF THE FIRE TEST According to the requirements of Exhibit 2 to this report, the PASS-FAIL Criteria for the Fire Test is as follows:

"3.4.2 Hose Stream Test - Immedialtely following Test I (the one-hour Fire Test),

accessible surfaces of the Protective Envelope shall be subjected to one of the following hose stream tests. The hose stream, shall be applied for a minimum of 24 minutes, without de-energizing the circuits.

3.5 The tests shall be constituted a failure if any of the following occur:

WESSON AND ASSOCIATES, INCo

1250 GPM CLASS "A" PUMPER TRUCK: 500 GALLON WATER BOOSTER TANK I'I<'URI'. 10: I'IIOTOGRAI'll QI. CI ASS "A" 1250 GPH WATER PUMPER USED fOR TilE WATER IIOSE STREAM TEST ON TIIE CABLE CONDUIT TEST SPECIMEN AFTER TIIE I RFQUIRED ONE-IIOUR FIRE TEST I

LVrSSON AND ASSOCIATES, INC.

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l. Circuits fai,l or fault during the fire test, as. required in Test I or fail during the hose stream test."

On the" basis of this energized cable integrity, as. shown by the Figure 3 Monitoring Circuits, the Cable Conduit Test Specimen PASSED all of the One Hour Pire Test Requirements. However, to provide additional data for interpretation of the actual experimental results, a number of cable surface temperature measurements must also I

be recorded during the fire test and reported in the Fire Test Report. The allowable cable surface temperature limit for Cable Conduits of the type

'usual'aximum tested is about 400 P.

As previously stated, Exhibit 3 presents a copy of the actual Honeywell-Brown Temperature Chart Recorder readings for all twelve (12) thermocouples attached to selected cables within the Cable Conduit Test Assembly. Figures 11, 12 and 13 present plots of these Exhibit 3 temperature recordings for the entire fire test duration of 65-'minutes exposure to the TSI ASTM-E-119 Pire Simulation Facility environment. As shown, the individual instrumented electrical cables (all cables in the Cable Conduit Test Specimen had at least one thennocouple installed on the cable covering at some point inside the conduit) varied in temperature at the end of the required One-Hour of fire exposure from a low of 160 F to a high of 240 P.

This maximum cable surface temperature of 240 P is well below the expected de-canposition temperature of the cable coverings (which accounts for the lack of any smoke emission from the cable conduit during the fire. test) and well below the 0

canmonly accepted maximum allowable surface temperature of 400 F for these type electrical cables.

C VXI RESULTS OP THE WATER HOSE STREAM TEST Figures 14 and 15 present photographs taken during the application of the Water Hose Stream to the fire tested. Cable Conduit Test Specimen. As shown, the water has good impact characteristics and completely covers the Test Specimen. This Water Hose Stream and its point of discharge with respect to the Test Specimen meets the Criteri.a specified in the NAI/MAERP Standard Pire Endurance Test Method to Qualify a Protective Envelope for Class lE Electrical Circuits for Operating Ruclear Plants as presented in Exhibit 2 to this report.

I Throughout this Water Hose Stream Test, the Figure 3 Test Specimen Cable Conduit Cable Integrity Monitoring Circuits display panel lights remained in their required lighted and no-lighted positions (Circuit to System light bulb energizedg Circuit to Circuit light bilb not-energized; and Cixcuit to Ground light bulb notwnergized),

thus indicatxng no cxrcu it- failures or faults during the Water Hose Stream Test.

Wzssow AND AssocmTEs, INc.

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I I'I<IIlhl; I a: I'IIOTO(;RAPII Ol'IIE FOLL CAPACTTY HATER IIOSE STRFAM li~IPACT TEST ON TIIE I:IRE TESTED ('Xl I,I'. CONDUIT TEST SPLYIhll,"N 2'

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This lack of electrical circuit failures or faults during 'the Water Hose Stream Test, following the required one-hour fire test, means that the Test Specimen MEETS the specified Cable Integrity Requirements presented in Exhibit 2 to this 'I report (ANI/MAERP Requirements for Class lE Electrical Circuit Protective Enclosures for Opezating Nuclear Plants) as well as the requirements for such protective encosures as presented in the NRC 10 CFR Part 50 (Fire Portection Program for Operating Nuclear Plants), dated 19 November 1980.

VIII CONCLUSIONS AND OBSERVATIONS Based upon the test results and experimental data presented herein, as well as detail visual inspection of the Cable Conduit Test Specimen before and after the one-hour ASTM-E-119 Fire Simulation Facility fire test and the Water Hose Stream Impact Test, the following Conclusions and Observations are presented for con-sideration and evaluation purposes:

1. Based'upon the requirements for maintaining cable circuit integrity, as specified in Paragraphs 3.4.1, 3.4.2 (3) and 3.5 (1) of ANI/51AERP Standard Fire Endurance Test Method to Qualify A Protective Envelope for Class IE Electrical Cizcuits (see Exhibit 2 to this report), the TSI Cable Conduit Test Specimen PASSED both the Fire Test and the Water Hose Stream Test Requirements in all aspects.

2. The recorded cable surface temperatures at the conclusion of the one-hour fire test were well below accepted industrial standards for maximum allowable elec-trical cable surface temperatures (240 0F versus an allowable 400 0F).

3. As shown by Figure 15, the Water Hose Stream Impact Test did not materially damage the 'char formation'f the Thermo-Lag 330-1 Subliming Coating Envelope System.

4. As presented in detail in the Reference (2) Engineering Test Report, both a TS1 Cable Tray-Conduit and Air Drop Test Specimen and a TSI Cable Conduit Test Speci-men were exposed to essentially identical fire environments for equal fire expo-sure periods. However, as noted in the Reference (2) Report, a maximum electxical cable surface temperature of 450 0F was reported for the Cable Tray-Conduit and Air Drop Test Specimen. Refezence (2) also reports a temperature range of- cable temperatures from 190 0F to 450 oF at the end of a one-hour fire exposure. It shou?d also be noted that both the TSI Cable Tray-Conduit and Air Drop Test Specimen and the TSI Cable Conduit Test Specimen had equal thickness of the Thermo-Lag 330-1 Subliming Coating incorporated in the Protective Envelope System.

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.I I'IE'IlRE I ~: PIIOTG( RAI'll <)I'IIE CAIII.E CONDUIT TEST BI'ECIHEN AFTER TIIE ONE IIOUR FIRE TEST AND TIIE SIIORT TERAI (-3 HINUTE) hATER IIOSE STREAH IMPACT TEST I r I ')7 4'a:SSOV .~~D ASSOCIArrS, INC.

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However, as reported herein, the maximum cable surface temperature in the Cable Conduit Test Specimen after one hour of fire exposure was about 240 F, as compared to the Cable TrayMonduit and Air Drop Test Specimen maximum cable temperature of 450 0F..Further, the range of cable temperatures at the end of the one hour fire test was 190 oF to 450 oF for the Cable TrayMonduit and Air Drop Test Specimen and was 140 0F to 240 OF for the Cable Conduit Test Specimen. This difference in the range of electrical cable surface temperatures and the range of cable temperature at the conclusion of the one hour fire test is due to the following considerations:

a. The Radiation View Factor between the Cable Conduit Test'pecimen and the radiant flames of the ASTM-E-119 Test Facility is much LESS than that for the much larger surface area and rectangular shaped Cable TrayWonduit and Air Drop Assembly. Hence, the heat transfer rate by radiant heat transfer is less for the Cable Conduit Test Specimen (remember that 80 percent of the ASTM-E-119 Test Facility heat flux is radiant energy).

b. The physical mass, and hence heat capacity, of the Cable metallic conduit is much greater that the the equivalent heat capacity of the very thin metallic ladder back cable tray.

IX REFERENCES

1. TSZ.Nuclear Quality Assurnace Program Manual and TSI Quality Operating Pro-cedures Manual (Copy No. 014 to Dr. H. R. Wesson, Wesson and Associates, Inc.,

P. O. Box 1082, Norman, OK 73070: Transmittal date of 7 August 1981).

2. Engineering Report on One-Hour ASTM-E-119 Fire Simulation Facility Fire Test Followed by a Short Term Water Hose Stream Test on a Nuclear Facility Class lE Cable Tray-Conduits.and Air Drop Assembly, Prepared for TSZ by WAI, dated 8/81.

Report Prepared By:

Dr. Harold R. Wesson, PE State of Oklahoma Registration Number 8591, 19 June 1970 State of Texas Registration Number 17430, 17 April 1959 President WESSON AND ASSOCIATES'NC.

PE 0 BOX 1082 Norman, OK 73070

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'EXHIBIT 1" TSI TECHNICAL NOTE 80181 THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLICATION PROCEDURES 8/81 REVISION I

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TSI TECHNICAL NOTE 80181 REVISION I 8/81 PREPARED BY:

Wilbur Paddock Manager of Production REVIEWED BY:

R. A. man Man r, Quality Assurance APPROVED BY:

R. Feldman President

TABLE OF CONTENTS SECTION TITLE PAGE NO.

1.0 INTRODUCTION

2.0 PRE-APPLICATION PRACTICES 3.0 FABRICATION OF STRESS SKIN ENVELOPE 4.0 COATING APPLICATION TECHNIQUES 19 5.0 TOPCOAT APPLICATION 22 6.0 POST APPLICATION PRACTICES 22 7.0 EQUIPMENT SUGGESTIONS 23 APPENDIX A SCHEMATIC OF SUGGESTED PENETRATING

'EASURING DEVICES 24 APPENDIX B ~

SUGGESTED COMPLEMENT OF REQUIRED SPRAY EQUIPMENT FOR THERMO-LAG 330-1 SUBLIMING COATING APPLICATION 25 APPENDIX C APPLICATION PROCEDURES -'TRUCTURAL STEEL ENTITIES 27 APPENDIX D TYPICAL APPLICATION DETAILS APPENDIX E FIREPROOF COATING THICKNESSES REQUIRED FOR VARIOUS STRUCTURAL STEEL MEMBERS

I'ai LIST OF FIGURES FIGURE PAGE NUMBER 1ITLE NO.

THERMO-LAG Stress Skin Type 330-69 Typical Layout for Cable Tray Sections 1.0.2 THERMO-LAG Stress Skin Type 330-69 Installation Schematic Prior to THERMO-LAG 330-1 Subliming Coating Application 1.0.3 Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to a Typical Cable Tray 6 1.0.4a THERMO-LAG Stress Skin Type 330-69 Installation Schematic Prior to THERMO-LAG 330-1 Subliming Coating Application 9a 1.0.4b Installation Schematics For Attaching Additional Sections of THERMO-LAG Stress Skin Type 330-69 to Previously Installed THERMO-LAG Stress Skin Type 330;69 9b 1.0.5a Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Drops 10a 1.0.5b Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Drops 12a 1.0.6a Cross Sectional View of THERMO-LAG 330-1 Subliming Coating. Envelope System Applied to Conduit and Cable Drop 13a 1.0.6b Cross Sectional View of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to Cable Tray and Cable Drop 13b Cross Sectional View, of THERMO-LAG 330-1 Subliming Coating Envelope System Applied to a Junction Box Assembly

TSI TECHNICAL NOTE 80181 THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLICATION PROCEDURES

1.0 INTRODUCTION

This procedure sets forth the sequential steps involved in applying THERMO-LAG 330-1 Subliming Coating Envelope System to cable trays, cable drops, conduit, guncti'on box assemblies, and structural steel.

The THERMO-LAG 330-1 Subliming Envelope System consists of THERMO-LAG Stress Skin Type 330-69, THERMO-LAG 330-1 Subliming Coating, Fiberglass Armoring, and where required, THERMO-LAG 330-70 Conformable Ceramic Blanket and THERMO-LAG 350 Two Part Spill Resistant Topcoat.

2.0 PRE-APPLICATION PRACTICES 2.1 alifications of Contractor The application shall be performed by a qualified contractor who has had prior training in applying the material and who has the equipment required to perform the application.

2.2 Safet Prec'autions The contractor shall follow standard industrial safety practices established for the handling of chemical coatings and shall conform to applicable OSHA and owner safety rules in all respects.

2.3 ~Deliver The coating materials shall be delivered to the 5ob site in original, unopened containers which show the product name, batch number, color, name of the manufacturer, the expiration date, and where applicable, an Underwriters'aboratories label.

2.4 ~Stora e The coating materials shall be stored off the ground when not in

. use in an area provided for that purpose. The materials in storage shall be protected against freezing and from temperatures above 100'F.

2.5 Tem erature and Preci itation The coating materials shall be applied only to dry surfaces. The temperature of the coating, material and surfaces to be coated shall be above 40'F during the material application and curing periods.

The contractor shall furnish and install any protective covers required to protect the newly applied coating, from rainfall or hard freeze during its initial curing period.

2.6 Protection of Ad scent Surfaces The contractor shall mask, off or otherwise protect all adjacent areas and in place equipment from receiving any material overspray during the coating application. Any spilled material and overspray shall be removed promptly using water, wet rags or sponges before the material has dried.

3-0 FABRICATION OF STRESS SKIN ENVELOPE 3.1 Cable Tra s (Fi 'ures 1.0.1; 1.0.2, 6 1.0.3) 3.1.1 Cut a piece of material large enough to form the bottom section from a roll of Stress Skin. The width of, the bottom section shall be equal to the sum of the base (W) and both sides (H) of the cable tray plus 34 inches, as shown in Figure 1.0.1 .. The length 'of the bottom piece of material shall not exceed 10 feet since longer sections are unwieldy and're difficult to install.-

3.1.2 - Cut a square 14 inch piece from each corner of the bottom section of the Stress Skin.

3.1.3 Form a "U" shaped section by making two 90'ends along the dotted lines which are located at each end of the W + 4" dimension line shown in Figure 1.0.1.

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90'end 3.1.5 Cut a piece of material large enough to form. the top section from a roll of Stress Skin. The width of the top section shall be equal to the base (W) of the cable plus 2Q".

3.1.6 Form a 14" flange at each end of the top section by making 90'ends along the dotted lines shown in Figure 1.0.1.

3.1.7 Drill holes for fastening the bottom and top sections together as required in the flanges of both sections as shown in Figure 1.0.2.

I 3.1.8 Mount the bottom and top sections of Stress Skin on the cable tray and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.9 Attach additional bottom and top sections of Stress Skin to a previously installed section by fastening them together. at the end flanges using mechanical fasteners, staples or 18 ga. galvanized.tie wire.

3.1.10 Coat the bottom and top sections of Stress Skin with THERMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.3. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this piocedure.

OR WHEN COATING PRIOR TO MOUNTING 3.1.11 Coat the bottom and top sections of Stress Skin with .THERMO-LAG 330-1 Subliming Coating prior'to mounting on the cable tray. The, coating shall be applied with Fiberglass Armoring in accordance with instruc-tions given in Section 4.0 of this'procedure.

3.1.12 Drill holes for fastening the bottom and top sections together as required in the flanges of both sections as shown in Figure 1.0.2.

I PIGURE 1.0.2 THERMO"LAG STRESS SKIN TYPE 330-69 INSTALLATION SCHEMATIC PRIOR TO THERMO-LAG 330-1 SUBLIMING- COATING APPLICATION TOP SECTION HOLES POR MO UNPRE G SXZPPENERS FLANGES BOTTOM SECTION

FIGURE 1.0.3 CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO A TYPICAL CABLE TRAY THERMO-LAG 330-1 SUBLIMING COATING o ros o o~

FIBERGLASS

~ ~

~

ARMORING I

o o ~

r~

~

o

~ ro ~ rgrfr ~

~o ~ ~

~ ~ r ~

CABLE THERMO-LAG STRESS SKIN TRAY TYPE 330-69 SHELL

~ CABLES

I 3.1.13 Mount the bottom 'and top sections of the precoated Stress Skin on the cable tray and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.14 Attach additional precoated bottom and top sections of Stress Skin to a previously installed section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.1.15 Apply a coating of THERMO-LAG 330-1 Subliming Coating in the specified wet film thickness to the edges and joints of the precoated sections of Stress Skin using a trowel or stiff bristle. brush to or fastening holes.

fill in any gaps 3.2 .Conduit (Fi re 1.0.4) 3.2.1 Cut two pieces of Stress Skin large enough to form a top and a bottom section for the conduit. The width of each piece shall be equal to 4" of the circumference'f the conduit plus 1". The length of the piece of Stress Skin shall not exceed 10 feet since longer sections are unwieldy and more difficult to install.

3.2.2 Form a semi-circular section with edge flanges from each of the two pieces by making two 90'ends at a distance of 1/2 inches from each edge of the width dimensions as shown in Figure 1.0.4a.

For sharp radius bends, the procedure delineated in Section 3.0 for

.the fabrication, of Stress Skin Envelope utilizing a design as shown i'n Figure 1.0.2 shall apply for conduit when sharp radius be'oated. bends'ust 3.2.3 Form a 4" flange on the length edges of each of the two pieces, where required, by making 90'ends.

3.2.4 Drill holes for fastening the bottom and top'ections together at a maximum of six inch intervals in the flanges of both sections when required.

3.2.5 Mount the bottom and top sections of Stress Skin on the conduit and fasten the two sections together at a maximum of six inch intervals

.using .mechanical fasteners, staples or 18 ga. galvanized tie wire.

I 3.2.6 Attach additional bottom and top sections, of Stress Skin to a previously installed bottom and top sections as shown in Figure 1.0.4b.

a) Overlapping the bottom and top sections by a maximum of 2 ~

ox')

Fastening them together at the end flanges using mechanical fasteners,'taples or 18. ga. galvanized tie wire.

3.2.7 Coat the bottom'and top sections 'of Stress Skin. with THERMO-LAG 330-1

~ Subliming Coating. The coating shaH. be applied with 'Fiberglass Armoring in accordance with instructions given in Section 4.0 of this procedure.

OR WHEN COATING PRIOR TO M)UNTING 3.2.8 Coat the bottom and top sections of Stress Skin with THERMO-LAG 330-1 Subliming Coating prior to mounting on the conduit. The coating shall be applied with Fib'erglass Armoring in accordance with instruc-tions given in Section -4.0 of this procedure.

3.2.9 Drill holes for fastening the bottom and top sections together as required in the flanges of both sections.

3.2.10 Mount the bottom and tops sections of the precoated Stress Skin on the conduit and fasten the two sections together at a maximum of .

six inch intervals using mechanical fasteners, staples or 18 ga.

galvanized tie wire.

3.2.11 Attach additional precoated bottom and top sections of Stress Skin to a previously installed section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire as shown in Figure 1,0.4b.

3.2;12 Apply a coating of THERMO-LAG 330-1 Subliming Coating in the specified wet film thickness to the edges and )oints of the precoated sections of Stress Skin using a trowel or stiff bristle brush to gape or fistening holes.

fillin any

FIGURE 1.0.4a THERMO-LAG STRESS SKIN TYPE 330-69 INSTALLATION,SCHEMATIC PRIOR TO THERMO-LAG 330-1 SUBLIMING COATING APPLICATION .

THER)0-LAG Stress Skin Type 330-69 Conduit 9a

'IGURE 1.0'4b INSTALLATION SCHEMATICS FOR ATTACHING ADDITIONAL SECTIONS OF THERMO-LAG STRESS .SKIN TYPE 330-69 TO PREVIOUSLY INSTALLED THERMO-LAG STRESS SKIN TYPE 330&9 THERMO-LAG STRESS SKIN END FLANGES END FLANGES THERMO-LAG STRESS SKIN CONDUIT THERMO-LAG STRESS SKIN 2" M1nimum Overlap THERMO-LAG STRESS SKIN CONDUIT Q. p'b

I 3.3 Cable Dro s (Fi ure 1.0.5 )

3 301 Cut a piece of Stress Skin large enough to wrap around the circum-ference of a single or multiple number, of cable drops. The width of the piece should be equal to the circumference of the single or group of cable drops plus an additional 3/4" minimum to provide for the overlap. The length of the piece of material shall not exceed 10 feet since longer sections are unwieldy and more difficut to handle.

3.3.2 Wrap the piece of Stress Skin around the single or group of cable drops

.and secure at a maximum of six inch intervals with 18 ga. galvanized tie wire. Attach additional pieces of Stress Skin to a previously wrapped piece by. overlapping'by a minimum of six inches and secure with 18 ga. galvanized tie .wire.

3.3.3 Cut a piece of THERMO-LAG 330-70 Conformable Ceramic Blanket large enough to wrap around the circumference of 'the installed Stress Skin.

The width of the piece should be equal to the circumference of the installed Stress Skin plus 7'inimum to provide for a tight abutment of the edges. The length. of the piece of material shall not 'exceed 10 feet in order to minimize the handling problems during installation.

3.3.4 Wrap the piece of Conformable Ceramic Blanket around the installed piece of Stress Skin and secure at a maximum of six inch intervals with 18 ga. galvanized tie wire. Attach additional pieces as required of the Confor'mable Ceramic Blanket to a previously installed piece by tightly abutting the pieces together. Care should be exercised to ensure that the wrapping of the Conformable Ceramic Blanket is continuous with no gaps or holes in the material surfaces.

3.3'5 Cut two pieces of Stress Skin large enough to form a top and a

,bottom section. The width of each piece shall be equal to one half of the circumference of the installed Conformable Ceramic Blanket plus 24" minimum. The length of the piece of material shall not exceed

,10 feet since longer sections are unwieldy and more difficult.to handle.

3.3.6 Form a semi-circular section .with edge flanges from each of the top pieces by making two 90'ends at a distance of lY'inimum from each edge of the width dimension.

10

I

~ ~

FIGURE 1 O g<

CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CABLE DROPS THERMO-LAG 330-1 FIBERGLASS ARMORING THERMO-LAG 330-1 ssq pl s

J THERMO-ISG STRESS SKIM CONFORMABLE CERAMIC BLANKET /

FASTENER THERMO-LAG STRESS SKIN TIE WIRE TIE WIRE

3.3.7 Form a lY'lange on the length-edges of each of the two pieces, when required, by making 90'ends.

3.3.8 Cut holes for fastening the bottom and top sections together at a max&num of six inch intervals in the flanges of both sections.

3.3.9 Mount the bottom and top sections of 'Stress Skin on the Conformable Ceramic Blanket and fasten the two sections together at a maximum of .

six inch intervals using mechanical fasteners, stapes or 18 ga.

galvanized tie wire.

3-3.10 Attach additional bottom and top sections of Stress Skin to a previously installed bottom and top section by fastening them togeth'er at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.3.11 Coat the bottom and top sections of Stress Skin with 'HKRMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.5a. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.3.12 Cable Drops (Fi ure l1.0.5b) 3.3.12.1 Cut a piece of Stress Skin large enough to wrap around the circum-ference of a single or multiple number of cables. The width of the piece should be equal to the circumference of the single or group of cable drops plus an additional 3/4" minimum to provide for the overlap. The length of the piece shall not exceed 10 feet since longer sections, are unwieldy and more difficult to handle.

3.3.12.2 Wrap the piece of Stress Skin around the single or group of cable drops and secure at a maximum of six inch intervals with 18 ga.

galvanized tie wire. Attach additional pieces of Stress Skin to a previously wrapped piece by overlapping by a minimum of six inches.,and secure with 18 ga. galvanized tie wire.

P 3.3.12.3 Coat the section of Stress Skin with THERMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.5b. The coating shall be applied with Fiberglass Armoring in accordance with instructions given in Section 4.0 of this procedure.

3.3.12.4 Cut a piece of THERMO-LAG 330-70 Conformable Ceramic Blanket large enough to wrap around the 'circumference of the installed Stress Skin. The width of the piece should be equal to the circumference of .the installed Stress Skin plus Q" minimum to provide for a tight abutment of the edges. The length of the piece of material shall not exceed 10 feet in order to minimize the handling problems during installation.

3.3.12.5 Wrap the piece of Conformable Ceramic Blanket around the installed piece of Stress Skin and secure at a maximum of six -inch intervals with 18 ga. galvanized tie wire. Attach additional pieces as required of the Conformable Ceramic Blanket to a previously installed piece by tightly abutting the pieces .together. Care should be exercised to ensure that the wrapping of the Conformable Ceramic Blanket is continuous with no gaps or holes in the material surfaces.

3.3.12.6 Cut two pieces of Stress Skin large enough to form a top and a bottom section. The width of each piece shall be equal to one half of the circumference of the installed Conformable Ceramic Blanket plus 2g" minimum. The length of the piece of 'material shall not exceed 10 feet since longei sections are unwieldy and more difficult to handle.

3.3.12.7 Form a semi-circular section with edge flanges from each of the top pieces by making two 90'ends at a distance of 1V'inimum from each edge of the width dimension. 4 12

FIGURE 1.0.5b

=

CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CABLE DROPS THERMO-LAG 330-1 FIBERGLASS ARMORING THERMO'-LAG 330-1 THERMO-LAG STRESS SKIN CONFORMABLE CERAMIC BLANKET THERMO-LAG 330-1 FASTENER THERMO-LAG STRESS SKIN TIE WIRE TIE WIRE 12a

3.3.12.8 Form a 1V'lange on the length edges of each of the two pieces, when required, by making 90'ends.

3 3 12 9 Cut holes for fastening the bottom and top sections together at a maximum of six inch intervals in the flanges of both sections.

3.3.12.10 Mount the bottom'and top sections of Stress Skin on the Conformable Ceramic Blanket and fasten the two sections together at a maximum of six inch intervals using mechanical fasteners, stapes or 18 ga.

galvanized tie wir'e.

3.3.12.11 Attach additional bottom and top sections of Stress Skin to a previously installed bottom and top section by fastening them together at the end flanges using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.3.12.12 Coat the bottom and top sections of Stress Skin with THERMO-LAG 330-1 Subliming Coating as shown in Figure 1.0.5b. The coating shall be applied with Fiberglass Armoring in accordance- with the instructions given in Section 4.0 of this procedure.

3.4 Conduit and Cable Dro Junction (Fi ure 1.0.6) 3.4.1 Apply the THERMO-LAG 330-1 Subliming Coating Envelope System to the conduit and the single or multiple cable drops following the instructions given in Section 3.2 or 3.3 of this procedure.

3.4. 2 Cut a piece of Stress Skin of sufficient size to wrap around the circumference of the conduit. The width of the piece should be equal to"the outside circumference of the conduit plus an additional 3/4 inch to provide for an overlap. The length of the piece shall be 12 inches minimum.

3.4.3 Wrap the piece of Stress Skin around the outside circumference of the conduit in such a manner that it covers six inches of the conduit.

Secure the piece of Stress Skin to the conduit with'two 18 ga. gal-vanized tie wires mounted -approximately 5 inches apart.

13

I

FIGURE 1.0.6a CROSS SECTIONAL VIEW OF

'QKRMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CONDUIT AND CABLE DROP CONDUIT THERMO-LAG 330-1 5/ BEVELED EDGE OF THERMO-LAG STRESS SKIN THERMO-LAG 330-1 FIBERGLASS ARMORING AND FIBERGLASS ARMORING PIBERGLASS ARMORING THERMO-LAG STRESS~SKI THERMO-LAG 330-1 THERMO-LAG STRESS SKIN CABLE DROP~

13a I.

I I

3.4.4 Cut a required number of 'small pieces of THERMO-LAG 330-70 Conformable Ceramic Blanket from a roll of this material.

3.4.5 Insert the small pieces of Conformable Ceramic Blanket inside the open end of the installed piece of Stress Skin and around and between the cable drops in such a manner that the open end is relatively sealed. Then secure the piece of Stress Skin to the cable drops with 18 ga. galvanized tie wires.

3.4.6 Coat the installed piece of Stress Skin with THERMO-.LAG 330-1 Subliming Coating as shown in Figure 1.0.6. The coating shall be applied with Fiberglass Arm'oring in accordance with the instruc-tions given in Section 4.0 of this procedure.

3.5 Cable- Tra and Cable Dro Junction at 0 en End of Cable Tra 3.5.1 Apply the THERMO-LAG 330-1 Subliming Coating Envelope System to the cable tray at the single 'or multiple cable drops following the instructions given in Sections 3.1 and 3.3 of this procedure.

3.5.2 Cut a piece 'of 'Stress Skin of sufficient size to wrap around the outside parameters of the cable tray. The width of the piece should be equal to the outside parameter of the cable tray plus

~

an additional 3/4" to provide for an overlap. The length of the piece shall be 24 inches minimum.

3.5.3 Wrap the piece of Stress Skin around the parameter of the cable tray in such a manner that it covers six inches of the conduit. Secure the piece of Stress Skin to the conduit with two 18 ga. galvanized tie wires mounted approximately 5 inches apart.

3.5.4 Cut a required number of small pieces of the THERMO-LAG 330-70 Conformable Ceramic Blanket from a roll of this material.

3.5.5 Cut slots approximately 12 inches in length at each corner of the open end of the piece of Stress Skin.

<<14

FIGURE 1.0.6b CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED TO CABLE TRAY AND CABLE DROP CABLE TRAY BEVELED EDGE OF THERMO-LAG 330-1 AND FIBERGLASS ARMORING THERMO-LAG 330-1

'BKRMO-LAG STRESS IN FIBERGLASS ARMCRING RING 'IBERGLASS IRERRO-LAG SXRES~SSKI THERMO-LAG 330-1 THERMO-LAG STRESS SKIÃ CABLE DROP~ 4

3.5.6 Insert, the small pieces of Conformable Ceramic Blanket inside the installed piece of Stress Skin and around and between the cable drops in such a manner that when the slit open end of the piece of Stress Skin is tightened around the cable drops, the open end is effectively sealed. Then secure the piece of Stress Skin to the cable drops with 18 ga. galvanized tie wires.

3.5.7 Coat the installed piece of Stress Skin with THERMO-LAG 330-1 Subliming Coating in the required thickness. The coating shall be applied with Fiberglass,Armoring in'accordance with the instructions given in Section 4.0 of this procedure.

4 3.6 Cable Tra and Cable Dro Junction at To or Bottom of Cable Tra 3.6.1 Apply the THERMO-LAG 330-1 Subliming Coating Envelope System to the cable tray and the single or multiple cable drops following the instructions given in Section 3.1 and 3.3.

3.6. 2 Cut a piece of Stress Skin of sufficient size to form a truncated cone shape which has one end that is equal to the circumference of the cable drops plus 3/4 inch to provide for overlaps. The other end should be approximately four times the circumference of the cable drops plus 3/4 inch, to provide for overlaps. The length of the piece should be 6 inches minimum.

3.6.3 Form a 1" flange at the large end of the piece of Stress Skin by .

making a 90'end along a line which is 1" up and parallel to the large end. Drill holes for fastening the flange to the cable tray as required in the flange.

3.6.4 Cut a required number of small pieces of THERMO-LAG 330-70 Conformable Ceramic Blanket from a roll of this material.

3.6.5 Form a cone out of the piece of Stress Skin taking care to overlap the sides by 3/4 inch.

15

3.6.6 Insert the small pieces of Conformable Ceramic Blanket inside the small end of the cone in such a manner that the small end is sealed when it is wrapped around the cable drops. Then secure the small end of the piece of Stress Skin to the cable drops with 18 ga.

galvanized tie wires.

3.6.7 Secure the flanged end of the piece of Stress Skin to the cable tray'sing mechanical fasteners, staples or 18 ga. galvanized tie wires.

3.6.8 Coat the installed piece of Stress Skin with. THERMO-LAG 330-1 Subliming Coating. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.7 Cable Tra or Conduit Junction With Fire Wall 3.7.1 Attach the Stress Skin Envelope of the cable tray or conduit at each )unction with a fire wall by fastening the butt flange of the Stress Skin to the fire wall using mechanical fasteners.

3.7.2 Apply the THERMO-LAG 330-1 Subliming Coating'o the butt flanges, overlapping the flange points with the coating by a minimum of 3 inches. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.8 Junction Box Assembl '.(Fi re 1.0.7 3.8.1 Cut two pieces of Stress Skin large enough to form the top and bottom sections of the main assembly section of the )unction box assembly as shown in Figure 1.0.7. The width of each piece of material shall be equal to the width of the )unction box plus 5 inches and the length of each piece shall be equal to the depth of the )unction box plus 3 inches. The additional 5 inches provides for 14" flanges and 14" clearance from the side edges of the )unction box. The additional 3 inches provides for 14" flanges and lg" clearance along the sides of the )unction box.

16

FIGURE 1.0.7 CROSS SECTIONAL VIEW OF THERMO-LAG 330-1 SUBLIMING COATING ENVELOPE SYSTEM APPLIED. TO A JUNCTION BOX ASSEMBLY CONDUIT COVERED WITH THERMO-LAG STRESS SKIN, THERMO-LAG 330-1 AND THERMO-LAG FIBERGLASS ARMORING 330-1 SUBLIMING COATING THERMO-LAG 330-1 J

~ ~

jt' AND FIBERGLASS ARMORING 0

r',r MAIN ASSEMBLY THERMO-LAG 330-1 SECTION APPLIED TO THERMO-LAG STRESS SKIN FRONT PLATE SECTION THERMO-LAG FASTENERS 'T SKIN 17

3.8.2 Cut any required holes for cable drops in the top and bottom sections.

3.8.3 Form a 14" flange on each of the four sides of the top and bottom section of Stress Skin by making the required number of 90'ends.

3.8.4 .Drill holes for fastening the top and bottom sections at a maximum of 6 inch intervals in the flanges as shown in Figure 1.0.7.

3.8.5 Cut two pieces of Stress Skin large enough to form the two side sections of the main assembly section. The width of each piece of Stress Skin shall be equal to'the height of the junction box plus 5 inches and the length of each piece shall be equal to the depth of the )unction box 'plus 3 inches. The additional 5 inches provides for lY'langes and lV'learance from the top and bottom edges of the

)unction box. The additional 3 inches provides for 14" flanges and 4" clearance along the sides of the )unction box.

3.8.6 Drill any required holes for cable drops in the two side sections.

3.8.7 Form a 14" flange on each of the four sides of the two side sections of Stress Skin by making the required number of 90'ends.

3.8.8 Drill holes for fastening the two side sections at a maximum of 6 inch intervals in the flanges as shown in Figure 1.0.7.

3.8. 9 Cut a piece of Stress Skin large enough to form the front plate section. The width of the front plate section, shall be equal to the width of the top and bottom sections plus 24" requir'ed to cover the flanges. The length of the front plate section shall be equal to the height of the side sections plus 2Y'equired to cover the flanges.

3.8.10 Drill holes for fastening the front plate section to the main assembly section as shown in Figure 1.0.7.

3.8.11 Mount the main assembly section around the )unction box by connecting the top, and bottom sections to the two side sections and attaching the main assembly section to. the wall on which the junction box is mounted using mechanical fasteners, staples or 18 ga. galvanized tie wires.

18

3.8.12 Mount the front plate section on the main assembly section using mechanical fasteners, staples or 18 ga. galvanized tie wire.

3.8.13 Coat the assembled front plate and main assembly sections of Stress Skin with THERMO-LAG 330-1 Subliming Coating. The coating shall be applied with Fiberglass Armoring in accordance with the instructions given in Section 4.0 of this procedure.

3.9 ,

Structural Steel Su orts 3.9.1 See Appendix C of this procedure for application instructions.

4.0 COATING APPLICATION TECHNI UES 4.1 S ra A lication 4.1.1 Apply the THERMO-LAG 330-1 Subliming Coating over a properly prepared surface; Make sure that the surface to be coated is clean, dry, above 40 F and free from scale, rust or'other contaminants.

4.1.2 Apply the material in as many passes as required to provide the required film build of coating thickness, taking care to avoid slumping or sagging of the coating. Normally, a required 0.500 inch dry coating thickness is accomplished by applying three wet coats of 0.225 inches.

However, the thickness which can be safely applied in a single pass will depend on the temperature; humidity, and other factors that are best determined on the job site.

4.1.3 Apply the material in smooth even passes, taking care to keep the spray gun fan pattern at a 90'ngle whenever possible. Reaching with a spray gun will cause the spray pattern to vary from the 90'ngle and will result in'a rougher surface than normal.

4.1.4 Take frequent wet thickness measurements during the application using a penetration measuring device such as those shown in Appendix A to ensure that the coating is being applied uniformly and at the required wet film thickness. These wet thickness checks shall be made every five square feet or every two running feet of'coated surface area. (Note: When taking measurements allow for a shrinkage rate of 25% between the wet and the desired dry film coating thickness.

19

I I

4.1.5 Remove'xcess build up of coating material at edges and joints by brushing. or rolling the surface with a damp sponge roller.

4.1.6 Spray edges of the substrate from each side to cause the material t'o wrap around the edge. lf the edge coating is not completely closed, use a wet roller or trowel to seal the edge surface.

4.1.7 Apply Fiberglass Armoring to the wet surface after the final pass and use a roller to flatten out any wrinkles and to embed the fiberglass securely. Then apply sufficient material to cover the embedded fiberglass.

4.1.8 Remove all runs, sags, drips or other surface imperfections before the material cures using wet sponge rollers, brushes or hand trowels.

4.2 Hand A lications 4.2.1 Trowel the material to a uniform thickness using, moderate pressure and avoid overworking the material. The trowel should be wetted with water. when a smooth finish is required; 4.2.2 Glove the material to cables and. small pipe using standard work gloves. cwork small areas and keep the gloves wet to insure a relatively uniform thickness.

4;3 D Film Thickness Measurements 4.3.1 Take dry film thickne'ss measurements after the applied material. has cured. Measurements shall be made using electrical, penetrating or magnetic measuring instruments.

20

4.4 Re air Procedure Dama e-4.4.1 Remove damaged and loose material using a knife and scrapper. Cut back until sound adhering material is reached.

4.4.2 The edge should be undercut to form a beveled edge as in plaster repair.

4.4.3 Remove all foreign matter from the substrate using a wire brush.

4,4 ' Spray or trowel THERMO-LAG 330-1 onto patch area. Several coat of the material can be applied to achieve the desired film thickness.

Be sure to allow for shrinkage of repair patch by building up a slight 'dome shape with the patch.

4.5 Cable Re lacement Re air

'4.5.1 Remove sections by cutting away material at the side and butt flanges.

4.5.2 Remove fasteners from flanges and carefully remove coated sections.

4.5.3 After work is completed, reattach envelope system using mechanical fasteners, staples or 18 ga. galvanized tie wires.

4.5.4 Apply a coating of THERMO-'AG 330-1 Subliming Coating in the, specified wet thickness to the edges and joints of the ieinstalled sections using a trowel or stiff bristle brush to fill in any uncoated areas.

21

5.0 TOPCOAT APPLICATION 5.1 S ra A lication 5.1.1 Pour Part B into Part A and thoroughly mix using a mechanical mixer.

Mix a minimum of 5 minutes and allow a "sweat in" period of 20 minutes before commencing the application.

5.1.2 Insure that the area to be topcoated is free from loose and foreign matter.

5.1.3 Take moisture meter readings of the applied subliming coated surface, using a Delmhorst Moisture Meter (Model DP) or equivalent. Obtain a reading of 20 or less before applying the topcoat.

5.1.4 Place mixed material into spray rig.

5.1.5 Apply topcoat in a smooth even pattern, making sure to criss-cross the area in a continuous film.

5.2 Hand A lication 5.2.1 Apply a full smooth coat of topcoating using a long nap mohair roller.

Avoid excessive buildup of topcoat in corners and always work to a wet edge of applied topcoat.

6.0 POST APPLICATION PRACTICES 6.1 A clean and orderly condition shall be maintained in the application area. Following the application, all overspray, debris and equipment shall be removed and the area left in a condition acceptable to the owner.

22

I 7.0 E UIPMENT SUGGESTIONS 7.1 The most economical and satisfactory method of applying THERMO-LAG 330-1 Subliming Coating is by either airles or air type spray equipment.

Air type spray equipment is recommended for use in spraying cable drops and conduit in order to minimize overspray.

7.1.2 Airless spray equipment is recommended for use in spraying larger sections such as cable trays and large I beams.

7.1.3 Suggested complement of spray equipment for both types are shown in Appendix B.

23

APPENDIX A SCHEMATIC OF SUGGESTED PENETRATING MEASURING DEVICES h

"A" is equal to the desired thickness of the coating.

,On measurement the pin portion of the gauge must sink completely into the layer of the applied coating. Take several readings for each thickness., Fill the hole created by the gauge after measurement is completed.

24

I APPENDIX B SUGGESTED COMPLEMENT OF REQUIRED SPRAY EQUIPMENT FOR THERMO-LAG 330-1 SUBLIMING COATING APPLICATION AIRLESS SPRAY EQUIPMENT VANTITY DESCRIPTION OF E UIPMENT 1 Each Hydra Spray Pump 45:1 1 Each Air Powered Ram 1 Each Hydra Mastic Spray Gun 1 Each Special Dump Valve 2 Each RAC III with 0.55 Tips 1 Each Air Agitator 1 Each Air Regulator Kit 1 Each Air Regulator Only with Gauge 1 Each Air. Line Filter 1 Each Air Line Lubricator 5 Each Pump Repair Parts Kits 6 Each Extra Tips with Seals 100 Feet 1 Inch I.D. Hi Pressure Fluid Hose 75 Feet 1/2 Inch I.D. Hi Pressure Fluid Hose 25 Feet 3/8 Inch I.D. Hi Pressure Fluid Hose 25

APPENDIX B (CONTINUED)

AIR TYPE SPRAY E UIPMENT UANTITY DESCRIPTION OF E UIPMENT 1 Each 10:1 President Spray Pump 1 Each Air Powered Ram 1 Each Heavy Mastic Spray Gun 1 Each Special Dump Valve 2 Each 1/4 Inch or 1/4 Inch "E" Spray Tip 1 Each Air A'gitator 1 Each Air Regulator Kit 1 Each Air Regulator Only with Gauge 1 Each Air Line Lubricator 1 Each Air Line Filter 5 Each Pump Repair Parts Kits 75 Feet 1/2 Inch I.D. Hi-Pressure Fluid Hose 25 Feet 3/8 Inch I.D. Hi-,Pressuie Fluid Hose 26

C APPENDIX C APPLICATION PROCEDURES STRUCTURAL STEEL ENTITIES

1.0 INTRODUCTION

This procedure sets for the sequential steps involved in applying THERMO-LAG 330-1 Subliming Coating System to structural steel entities and steel storage tanks.

The 'HKRMO-LAG 330-1 Subliming Coating System consists of THERMO-LAG Primer, THERMO-LAG 330-1 Subliming Coating, and where applicable, THERMO-LAG Topcoat.

2. 0 SURFACE PREPARATION 2.1 All surfaces to be coated are to be clean, dry, above 40'F, and free from scale, rust and other contaminants.

2.2 Prepare non-compatible surfaces for coating by applying a barrier coat of THERMO-LAG 351 ox THERMO-LAG 351-2 Primer. Never apply the primer directly over a surface previously primed with a zinc based primer without installing a barrier coat. Never apply the primer directly over any hard or glossy paint without roughening the surface in accordance with standard, good painting, practice procedures and make sure that the cleaned substrate is compatible with the THERMO-LAG 330-1 Subliming Coating by making cross hatch adhesion tests.

2.3 Blast clean doubtful= surfaces to an SSPC-SP6 finish and reprime immediately.

27

I I

3.0 PRIMER APPLICATION 3.1 Apply the primer to a properly prepared steel surface in one continous coat using spray equipment or a roller. The minimum acceptable dry primer thickness should be 0.002 inches which is normally achieved by applying at a rate of 200 square feet per gallon.

3.2 Measure primer thickness using an approved magnetic direct reading gauge.

3.3 Make cross hatch adhesion tests, as per Federal Standard 141A, on the primed surface to assure proper adhesion between the primer and the steel .substrate prior to proceeding with the application of the THERMO-LAG 330-1 Subliming Coating.

3,4 Make at least one cross hatch adhesion test every twenty (20) square feet of primed surface area. Any primed surface area which fails the cross hatch adhesion test shall be sandblasted to an SSPC-SPC6 commercial blast finish and then shall be reprimed with THERMO-LAG 351 or THERMO-LAG 351-2 Primer.

4.0 THERMO-LAG 330-1 SUBLIMING COATING 4.1 Apply the material in as many passes as required to provide the required film build or thickness, taking care to avoid slumping or sagging of the coating. The thickness which can be safely applied in a single pass will depend upon the temperature, humidity, application technique, and other factors and should be determined at the gob site.

4.2 Apply the material in smooth even passes, taking care to keep the spray gun fan pattern at a 90'ngle whenever possible. Reaching with a. spray gun will cause the spray pattern to vary from the and will result in a rougher surface than nor'mal. 90'ngle 28

4.3 Take frequent wet thickness measurements during the application using a penetration-measuring device such as those shown in Appendix A to ensure that the coating is being applied uniformly and at the required wet film thickness. These wet thickness checks shall be made very five square feet or every two running feet of coated surface area. (Note: When taking measurements allow for a shrinkage rate of 25% between the wet and the desired dry film coating thickness.

4.4 Remove excess build up of coating material at edges and joints by brushing or rolling the surface with a damp sponge roller.

4.5 Spray edges of the substrate from each side to cause the material to wrap around the edge. If the edge coating is not completely closed, use a wet roller or trowel to seal the edge surface.

4.6 Apply .Fiberglass Armoring, where required, to the wet surface after the final pass and use a roller to flatten out any wrinkles and to embed the fiberglass securely. Then apply sufficient coating material to cover the embedded fiberglass.

all 4.7 Remove runs, sags, drips or other surface imperfections before the material cures using wet sponge rollers, brushes or hand trowels.

4.8 Take dry film thickness measurements after the applied material Measurements shall be made using'electrical, penetrating or has'ured.

magnetic measuring instruments.

5.0 TOPCOAT APPLICATION 5.1 Insure that the area to .be topcoated is free from loose and foreign matter.

5.2 Take moisture meter readings of the applied subliming coated surface using' Delmhorst Moisture Meter (Model DP) or equivalent. Obtain a reading of 20'or less before applying the topcoat.

29

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5.3 Place mixed: material into spray rig.

5.4 Apply topcoat in two continuous coats at a minimum spread rate of 50 square feet per gallon in a smooth even pattern, making sure to criss-cross the area in a continuous film.

6.0 CLEAN UP 6.1 A clean and orderly condition shall be maintained in the application area. Following the application, all overspray, debris and equipment shall be removed and the area left'in a condition'acceptable to the owner.

30

EXHIBIT "2" P,iv'tHi~;~,i'.

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~,LJCLEAR ~ >>>~It lUSURERS ANI/MAERP STANDARD FIRE ENDURANCE TEST METHOD TO QUALIFY A PROTECTIVE ENVELOPE FOR CLASS 1E ELECTRICAL CIRCUITS

1.0 INTRODUCTION

o The At/I/MAERP "Basic Fire Protection Guidelines" (April, 1976) recommend that redundant safety circuits be cut-off from each other by standard fire walls and floors (Item I, E-6). It has been our experience, that in new designs, this feature is "built-in". However, for operating plants, and some plants nearing completion, the provision of standard, rated, fire barriers may not be practical. When thi's condition exists, the options are to relocate the vital circuit to another fire area, or protect them in place.

"Protecting-in-place" is defined as the ability to maintain the circuit's function during a standard exposure fire by. use of a Protective Envelope.

In an effort to provide, for insurance purposes only, a reasonable and re-liable means of "protecting-in-place" these vital circuits, without limiting our Insureds to conventional methods, and giving them the option of using products/materials not nomally seen in this type of application, we have developed this test method. In this manner evaluations of different products/

materials can be made, using a standard test approach.

In developing this Standard Test Method, the need to maintain circuit integ-rity during a standard "temperature-time" fire exposure was the pt ime con-sideration. In addition, the ability of the Protective Envelope to contain an internal fire exposure, was also considered important; It should be emphasized that this Standard Test Method in no way decreases our requirements for fixed automatic fire suppression systems nor will considered. the equivalent of rated fire barriers, where required. Its intent it be is to provide a means for "protecting-in-place" redundant cable systems in existing plants, or unusual situations in new designs.

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7/79 SUGGESTED TEST LAYOUT - TEST METHOD 1 EXPOSURE FIRE TEST CABLE PROTECTIVE ENVELOPE (Note 7.)

PIRE STOP I I FIRE STOP TEST l I

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FRONT VIEM END VIEM (No SCALE)

NOTE 1: Tli0 PROTECTIVE ENVELOPES TO BE TESTED. ONE LOADED TO MAXIMUM (4O")

DESIGN AND ONE LIGHTLY LOADED.(ONE LAYER).

SUFFICIENT CIRCUITS TO Bf MQ'iITORED TO DETECT FAILURE'IRCUIT TO CIRCUIT, CIRCUIT TO SYSTBI, OR CIRCUIT TO GROUND.

VARIOUS TYPES OF CABLE; SUCH AS POWER., CONTROL AND INSTRUMENTATION.

CABLE SHOULD NOT EXTEND MORE THAN THREE FEET OUTSIDE THE TEST OVEN.

NOTE 2: DUE TO FURNACE DESIGN, IT PAY BE NECESSARY TO ENTER AND EXIT THE FURNACE ON THE TOP OR THE S I DE.

7/79 SUGGESTED TEST LAYOUT - TEST METHOD 2 INTERNAL FIRE TEST OTTON CABLE PROTECTIVE ENVELOP(

(OPEN AT .BOTH ENDS) 6 FT.

NOTE 1: COTTON WASTE SHALL BE PLACED OVER THE ENTIPE TOP SURFACE OF THE TEST SYSTEM ANO A SAMPLE SYSTEM 6 INCHES BELOW THE TEST SYSTEM.

NOTE 2: THE CABLES=USED IN THE TEST SHALL BE REPRESENTATIVE OF THE CABLE USED AT THE SITE. LOADINGS SHOULD BE 20K FILL WITH RANDOM LAY.

THE CABLES IN THE TRAY SHALL BE IGNITED USING THE "OIL SOAKED BURLAP" METHOD AS OUTLINED IN IEEE/ICC/WG 12-32 ~

6/27/73 OR. OTHER ACCEPTABLE "FLAME SOURCE". 'ATED DEPENDIt(G ON DESIGN ANO OPERATING CONDITIONS OF THE COATItlG. THE FLAME SOURCE SHALL BE LOCATED AT THE MID-POINT OF THE CABLE SYSTEM. THE INTENT BEING'O PROVIDE AN IGNITION/FLAME SOURCE THAT IS DESIGNED TO LAST APPROXI-MATELY 20 MItlUTES AND ACTIVATE THE PROTECTIVE EttVELOPE.

OBSERVATIO!tS At/0 THERMOCOUPLE REAOE'(GS SHALL BE t"Alt(TAINED FOR ONE HOUR FROtR THE POINT OF IGNITION OF THE "FLAME SOURCE" .

1 2.1. SCOPE 5 PURPOSE 2.1 The purpose of this test fs to qualffy for insurance-purposes a Protective. Envelope for Redundant Class 1E Cables fn .Nuclear Power P ants when ocated in t e same r re area. .

re area s e ned aast.aat portion of a boiIding that is encompassed by rated fire wal1s, ceflfngs and floors.) The maintenance of circuit fntegrfty fn these Class 1E safety cfrcufts during a postulated fire .fs of prfme importance.

2.2 The intent'f this Test. Method fs to establish a protective envelope that maintains circuit integrity for safety circuits when:

--Redundant safety circuits, located fn the same fire area, are exposed to a fire outside of the cable system, or

--Redundant safety, circuits, located fn the same ffre area, are exposed by a fire originatfng fn an adjacent "protected-fn-place" cable system, 'or

--Redundant safety circuits, located fn the same fire area, are subjected to mechanical impact damage as simulated by a hose stream, or other impact test.

3.0 ACCEPTANCE CRITERIA ANI/NERP Acceptance will be based on the completfon and review of a11 of the following:

L 3.1 Successful passage of ffre tests, as outlined fn Section 3e4 of this test method, and submittal of necessary test documentation as prepared by a recognfzed testing laboratory or consultant.

3.2 A gualfty Control/quality Assurance Program for the system/design should be submitted for revfew. Complete details covering fnstallatfon procedures, physical characteristics, fdentfffcatfon'ethods, sample forms for third party sign-off, etc. should be included.

The qC/gA Program fs considered an fntegral part of the acceptance process and variatfons between the gC/qA Program for the test and the program developed for the actual installation will not be acceptable.

3.3 All materials and components fn the completed system, with the excep-tion of the cable. shall be rated as non-combustible f.e., Flame Spread, Fuel Contributed, and Smoke Developed ratings of 25 or less.

Materfals or components that are combustible or hazardous during the installation phase, should have a material hazard analysfs performe'd with procedures developed for quantities on hand, storage practices, and precautions to be taken during installation.

P

3.4 The Cable Protective Envelope shall be exposed to the following fire endurance and hose stream tests.'est configuration and details should be submitted for review and convent prior to test.

3.4.1 Test I - Ex osure Fire - The Protective Envelope-shall be exposed to t e stan ar temperature-time curve found in ASTH E-119-76 (ANSI A2.1) for a minimum of one hour. Sketch 0 I outlines a

~su ested test configuration 3.4.2 Hose Stream Test - Immediately following Test I, accessible sur'-

t t1 E ip hgIb hj tdt fth

'r following hose stream tests. The hose stream shall be a minimum of 2 I/2 minutes, without de-energizing the circuits.

applied'or PROPER. SAFETY PRECAUTIONS SHALL BE EXERCISED. One of the follow-ing tests shall be used:

1. The'stream shall be delivered through a 2 I/2 inch national standard playpipe equipped with I I/8 inch tip, nozzle pressure of 30 psi, located 20 feet from the system.

/

2. The stream shall be delivered through a I I/2 inch nozzle set at a discharge angle of 30'ith 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'he system.

or

3. The stream shall be delivered through a I I/2 inch nozzle set at a discharge angle of 15'ith 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 system, NOTE: fl is the preferred test.

3.4.3 Test II - Internal Fire - For systems/designs that require heat to act vate t e rotective Envelope, the system shall also be subjected to Test II - Internal Fire. Sketch 82 outlines a

~su ested test configuration.

3.4.4 Cable Construction 5 Test Details 3.4.4. I Cables shall be energized for circuit monitoring during Test method I. For the purpose of this test method, "energized" means sufficient current to monitor

'failure.

3.4.4.2 Cable constructions shall be representatfve of cable used at the site. Cable tray loadfngs shall be fn acc-ordance fifth suggested test layouts.

3.4.4.3 In both test methods, cable tray constructfon shall be representatfve of actual sfte condftfons, where applfcable, 3.4.4.4 Cable system supports shall be those currently found fn nuclear power plant's and follow accepted fnstallatfon procedures. Care should be exercfsed fn using only supports that,are'necessary for the test. Supports that are us'ed for the Protectfve Envelope'shall be part of the ffnal fnstalled desfgn.'

3.4.4.5 Thermocouples shall be located strategfcally on the surface and at one foot fntervals fn the cable systaa

. and temperatures recorded throughout the test.

3.4.4.6 Ffre stops or =breaks, ff used, .shall be acceptable to American Nuclear Insurers. Faflure of the fire stop

'or break shall not necessarily constitute a failure of the the Protectfve Envelope.

3.5 The tests shall be constftuted a faflure ff any of the followfng occur:

1. Cfrcufts fafl or fault during the fire test as required fn Test I or fafl during the hose stream test.

2. .Cotton waste fn Test II fgnftes durfng the test perfod.

3.6 The mfnfmum fire endurance rating acceptable for Test I shall be one hour. If longer ratings are desired, they shall be fn one hour fncrements, such as 2 hr. and 3 hr. ratings.

4.0 FINAL ACCEPTANCE Pr for to any fnstallatfon at plants fnsured by Amerfcan Nuclear Insurers, or Mutual Atomfc Energy Reinsurance Pool, complete plans outlfnfng system to be installed, locatfon, etc. shall-be suhnftted for revfew and acceptance.

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UNDERWRITERS LABORATORIES FILE NO R6076 SURFACE BURNING CHARACTERISTICS ON THERMO-LAG 330-1 SUBLIMING COATING TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex: 44-2384

I I I I

UNDERWRITERS LABORATORIES INC.

                .'<<<>>>l><<<<<>i. >I. 'YI,'lII > K. ><'<" . >i!< >'4 < I.h>< L. <'A TL'<ll'l. YL aw in<lepen<lent, ant-to>'-p>'<>tit r vit>t>>i:<gati>>>t               teiti>>g ti>> p]tblic ~afet>t
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Pile R6076 Project 81NK3238 June 16, 1981 REPORT on SURFACE BURNING CHARACTERISTICS of GENERAL PUFFOSE COATINGS TSI, Inc. St. Louis, MO Copyright C 1981 Underwriters Laboratories Inc. Underwriters Laboratories Inc. authorizes 'the above named company to -reProduce this Report provided is reproduced in its entirety. it
issued: 6-16-81 w Pile R60 76 Page 1
~ 2 DESCRIPTZOVL PRODUCT COVERED: F The product covered by this Report is a general purpose coating, identified as "Thermo-Zag 330-'l." =
USE:
. The. product covered in this Report is intended for use as a building material as permitted by the authorities having jurisdiction.
JPS/KR:et 1
File R6076 Page Tl-l. Zssued: 6-16-81 .
,TE ST RE CORD'O- 1 EXAMINATION OF MATERIAL: ~
The material used in this investigation was produced under the o5servation of a representative of Underwriters. Laboratories Znc. in a ready-to-use form and applied to the indicated test surfaces at the Northbrook Testing Station of Underwriters Laboratories Znc. The composition of .the finished material's of a proprietary, natura and the formula involved is on file at the use in the .Follow-Up Service program. Zaboratories'or Various chemical and:physical tests were conducted on the finished materiaL. The results developed from these tests empLoyed in establishing specifications for use in the Follow-Up Service piogram.. SURFACE BURNING CHABACTERISTZCS TESTS: SAMPLES The Classification Marking of Underwriters Inc. for "Asbestos Cement Board" vith fLame spread, Zaboratories fuel contributed and smoke= developed factors of zero was in evidence on the 1/4 in. thick asbestos cement board substrate material. The coating vas app'lied at a rate of 41 sq ft per gall. on as determined by weight. Each test sampl.e consisted of three. 8 ft long 5y 24 in. wide sections of the coated asbesto's cement boards, butt-joined together. In each test a piece of 1; ft 22 in. vide by 1/16 in. thick uncoated steel plate was placed long by at the fire end of the tunnel furnace "upstream" from the gas burners to compLete the 25 ft sample Length. I
. The samples were allowed to condition at a temperature of 70 + 5 F and a relative. humidity of 35 to 40 percent for approx 23 Pays prior to testing.
METHOD The tests vere conducted in accordance vith Underwriters Laboratories Inc. Standard Tests for Surface Burning Characteristics of Buil.ding Materials, -UL 723.
File R6076 Page Tl-2 Xssued: 6-'16-81 RESULTS Data on, flame spread, fuel contributed, and smoke devel>> The max&num
~ld oped appears in the follo~ing tabulations.
distance the flame spreads along the length of the sample from the end of the igniting flame. is determined by observation. 1
'he Flame Spread Classification of the material is derived by determining the area under. the flame spread distance (ft) versus time Onin) curve, ignoring any flame front recession, and using one of the calculation-methods as described below:
1. Zf this total area (AT) is less than or equal to 97.5 min-ft (meter-minute x 3.3) the flame spread classification shall be 0.515 times the total area (FSC 0.5.5 AT) .

2. Zf the total area (AT) is greater than 97.5 min-ft (meter-minute x 3.3) the flame spread classification is to be 4900 divided by L95 minus the total area (AT)
FSC ~ 4900/(L95-AT) Flame'pread Test Classification ,I - Thermo<<Lag 330-1 Thermo-.Lag 330-1 2.9 3.1 Fuel Contributed A time-temperature curve is developed by plotting the temper-ature measured by a thermocouple located at the 23 ft (vent end) in the furnace against time. The calculated value for point the fuel-contributed Classification is derived by expressing the net area under the curve for the tested materiaL as a percentage of the net area under the curve for untreated red oak asbestos . cement. board. Calculated Value For Fuel-Contributed Classification
'est Thermo-T.ag 330-1 0 Thermo-Lag 330-1 0
File R6076 Page Tl-3 Issued: 6-16-81 Smoke Develo ed The smoke developed during the test.,is indicated by the output of a photoelectric circuit operating across the furnace flue pipe.. A curve is developed by -plotting .values 'of ligh't absorption (decrease in cell output) against time. The calcu-lated value for the smoke developed Classification is derived by expressing the'et area under the curve for'he tested material as a percentage of the net area under the curve for untreated red oak. Calculated Value For Test Smoke Develo ed Classification Thermo-Lag 330-1 .20. 3 Thermo-Lag 330-1 12.9
File R6076 Page Cl Issued: 6-16-81 CONC L US XON SURFACE BURNING CHARACTERIST XCS: The following- Surface Burning Characteristics are estab-lished for the m'aterial submitted under this investigation: TYPE 330-1 APPIIED TO 1/4 XN. ASBESTOS - CEMENT 'BOARD+ FLAME SPREAD 5 FUEL CONTRIBUTED 0 SMOKE DEVELOPED 15 RATE PER COAT (SQ FT PER GAL) 41 NUiiBER OF COATS 1 Flash point of liquid coating: .Closed Cup, no flash to. boiling.
File R6076 Page C2 Issued: 6-16-81 FOLLOW-UP P ROGRAM: The coatings. covered by this Report will be placed under the Follow-Up Service of Underwriters Laboratories Xnc. The Classification Marking of Underwriters Laboratories Inc. attached to the product will be evidence that such a product has been produced under the Follow-Up Service Program. Such a Classification Marking will bear the information as shown below: UNDERWRITERS LABORATORIES XNC. R CLASSIFIED GENERAL PURPOSE COATING SURFACE BURNXNG CHARACTERISTXCS TYPE 330-1 APPLIED TO 1/4 XN. ASBESTOS - CEMENT BOARD+ FLAME SPREAD FUEL CONTRIBUTED 0, SMOKE DEVELOPED 15 RATE PER COAT (SQ FT PER GAL) 41 NUMBER OP COATS l Flash point of liquid coating: Closed Cup, no flash to boiling. Report by: JAMES F. SMXTH Senior Engineering Assistant Fire Protection Department KENNETH D. RHODES Engineering Group Leader Fire Protection Department And NILLIAM S. METES Executive Staff Engineer Fire Protection Department JFS/KR: et
I I I A t I I
U UNDERWRITERS'ABORATORIES, INC. f
.LLl Yfl&MIN40 vcTNi%C IlllvliAloCf j
a>> i iileI~>>~le'>>t,- nnt-(or-p>>i/it oryx>>i:ati~in te~tin fci"puMic .efetil
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Apxil 28> 1970
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TSE Thermal Systems Inca 1161 Research Boulevard St. Louis, N1ssouri 63138 Attention: Ãr. Rubin Peldman. President
Dear Nr. Peldman:
I , This is in reference to the recent testing on
-April. 15, 1970 ot your general purpose coatings, desiyeted Tgye 330 and Type 220.
Although the investigation ot your general yuryoso coatings has not been completed, baaed on tests eoeducted in our Stiner Tunnel on representative eaay1es ot the material, the folloving Pire Hazard Classifications ei11 b applied to these coatings ~hen Li'sting is establishodx
~i~0 .. ~i 220 Place Spx'cad 5 0 Fuel Contributed o L Smoke Developed 0 '.; 0 t 'roducts lt produced is understood that these results apply only to those t 't 'ndicated in accordanoe with Cho processes end requirements, and using the materials involved in the sanufaoture the original test sample free Mich the classitication above was developed.
physical The" Listing Fork ot Underwriters'aboratorios, Xne. es . the pxoduot is the only aethod provided bg Undermiters'aboratories, Xne., to identify 0oneral Puxpose Coatings which havo beea
~
yroduced under the Poller-Uy Sexvioe. bfe are preiently in the pxocess ot conduetinl various supplemental tests to establish specifications for use Pollov-Up Soxvice Program at the uenufaoturinl.plant. in'he vi11 be in a position to prepare the Isabel Sexvice Prooeduxe end establish the Listing in our published advioes, es soon. as 'his supp1emental test cwork is oosyleted. RECaj(g) kf@' f970
I UNDERWRITERS'ABORhTORlES, lNC April 28, 1970 Zf you have any further Questions or comments, please feel free'o contact the writer. V ry truly your , C JS g0 RT L} SKALh hesistant Engineer Fire Protection Department RLS: gb Reviewed by: G~ To ChSTINO Engineering Group Leader Fire Protection Dept.
UNDERWRITERS LABORATORIES FILE NO R6076 SURFACE BURNING CHARACTERISTICS ON THERMO--LAG 350 TWO PART SPILL RESISTANT TOPCOAT TSI, INC. 4 3260 8RANNON AVE. 4 ST. LOUIS, MO. 63139 4 (314) 352-8422 4 Telex:. 44-2384
UNDERWRITERS'LABORATORIES, INC. CHICA') 'ORTH BROOK, ILL'ELVILLE.XY.'ANTACLARA CALlf independent, .an@ not-for-p> ofct: organization testing for ptcblie safety R6076 Assignment:. 695K4859 July 22, 1970
.Report 01L COATINGS, GENERAL PURPOSE TSI Thermal Systems, Inc.
St. Louis, No,
.Che tests v-;re conducted in accords'ce rCth the Standard of Underwriters T:;borntorl s, Xnc., Test Method for Pire-Ha"hard Classification of Building Materials (UL723) .
P~SULTG Data on flame-spread, fuel-contributed, md smoke-f devel oped .".ppca ra in thc "" o'.sing tabul it,3.orts . 1 Pl~re Spread 1%e maximum distance th flame sprcido along the length of the sample f"cm the epd of the.i~itin'lmne is determined by observation. The calculated value for the flane-spread classification is derived by expressing the flame-spread for- the .tested mateiia1 as a percentage of the flmne-spread for untreated red oak. Calculated Maximum Value Por Flame Pl re-Spread Test San>1.e Spread Ft Classific <<tion Untreated Ded Oak Z9-~12 at leO 330 sec Asbestos-cement board 0 0 Coatin at 2 0 s ft er al-l2 0 0 0 0 0 0
. uel Contributed A time-temperature curve is developed by plotting the- temperatures measured by a thermocouple located at the 23 ft point (vent end) in the furnace against time. The calculated value for the fuel-contributed-.classification is derived by expressing the net area under the curve for the tested-material as a percentage of the net area under the curve for untreated red oak.
Pa+e l Xssu d: 7-22-79 Genera1-purpose coat;~ng applied o asbestos-ceo:ent board. The general-~uwo~e co.-.+~ng is ~ntenDed for use a" inter5.or coa.t~~> as q~r":>itted bJ the authorit5.es hav5.ng )OA.ndictlon. The est Sly."lcd f5.xe-I'ozard class~ficatlon Cf t<AS coat5 ?g 3.0 3pplicabl8> <Then the Coat Snab lQQter5.8l is applied 1n the number ox coats m>d at the coverage rates syecif5.ed 5n th published 19.s&mgo of Undenn5.ter8'aborator5.es,'nc.
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VEST BECOHD Nii. The i;".a~erials used in this inv stig .i.ion v"'rc produ'ed, ia a really- o-use for.'n nd vere applied to the indicited test sur:"ec' th Uorthbrook Qff5.ee of Urrkrm'Lters~ L~b~r.".+o "i "", .I..c., vzi'.er the observation of a Laboratories l epresc ltF tfve +
'>he co~.position ox the ge..eral purpose coatings is of a prop~Letary n"'.ure and the foi~ulas involved are on file at the L bor'tories for use in the ~oliov-Up Service Program.
Various chemical and physical tests vere conducted on the gener<3. purpo e coatings and the results obtained from these teats vere ewgloyed ~m the establishment of specifications for use in the Follow-Up Service Program, FI:"" -HAZARD CLASSIFICATION Tr.STH: end The test surfaces vere 21 in. v5.de by 25 vere forL"ed from 21 in. <d.de by 8 ft ft long long pieces of 1/>4 in. asb"stos-cement board listed by Undexmiters~ Laboratories, Inc. Three such boards 4 re butted cnd to end to form a test sample 21 in. ri<de by 20 M<<.de by 1 ft long piece nf asbestos-cd ft rt long. A 21 in. board (li."ted by Und mrs.terst Laboratories, Inc.) vas.p1aced at the fire end of the tunnel fuxnace to co~piete the h5 ft long sample. The coatings vere uniformly applied by brush to the asbestos-cement board pane1s. The coverage rate was determined by the ver.ght dpi'ference of the coated end uncoated boards. The smp3.es were tested approximately 45 days after application of the coatings. During the last 30 days of this period, the sL";ules n re conditioned at a tea:oera-tu e of 70 + g P and at a relative humidity of 30 to 40 per cent.
Ii l I) 18~QCCt: / 22 CGlCtO ate'Q V~gg z gz Q~eo'~o >octal re
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9'%Le 86G":"6 P.-- C2 Issued: 7-22-70 FIB'>>P~ABD CL<<.SSIFXCATXOiV OF APPZ. D (,'0."..LtG (BASED ON 10Q FOR kl:'TiGATHD HZD OAK) S"BRAC~ 1/0 XN. aSBZSTOS-Calam BOARD Fj QE HPB P3) 0 PFFFT. CO'.F..'?RIBUTED 0 S? ~0KB MV~LOPF~D 0 C-':=RAN"= mZ (Sq ...=rGX-) r"
$0 1Tif '.888 'O.i COP.'ZS .1 E~'(ASH:POLI'iT OF LIQUID COATING: COMPOKTiPZ PART A:
CLOSED CUP, PO FLASH Reviewed by: ROBED.T SF'~& 6. T, CASTIHO Prospect Engineer Engineering Group Leader Fire Protection Department Fire Protection Department
EVALUATION OF THE WEATHERING CHARACTERISTICS OF THERMO-LAG 330-1. SUBLIMING COMPOUND-AS ~ APPLIED TO METAL SUBSTRATES TSI, INC. 4 3260 BRANNON AVE. 4 ST. LOUIS, MO. 63139 4 t314) 352-8422 4 Telex: 44-2384
I I I I I I I
EXECUTIVE St~&!ARY This report analyzes and evaluates the results of test programs on THERMO-LAG 330 Subliming Material conducted by TSI, Inc., the Department of Transportation, the Underwriters Labora- - tories, Inc. and other laboratories. Based on the accelerated life testing programs conducted by TSI, Inc. and elsewhere, the service life of properly applied THERMO-.LAG 330 Subliming Material is estimated to be at least 40 years. This service life is applicable for this fireproofing coating system applied to structural steel supports, cable trays, conduits, cable drops, pipe rack, storage tanks and other stationary entities. The accelerated life testing program conducted by TSI, Inc. ~ used a weathering unit which cycled the test panels through simulated weathering conditions. At predetermined times, test panels were withdrawn ro determine the weight loss, shrinkage of the coating thickness, adhesion of the coating, evidence of chalking and checking, and thermal performance o8 the fireproofing materia . The results of these tests show that the THERMO-LAG 330 Subliming Material, has excellent weathering properties. The accelerated Life testing program sponsored by the Department of Transportation included seven (7) coated LPG raiL tank cars which were subjected to 160,000 miles of travel at programmed speeds over smooth and rough rails, salt spray, chemical environments, impacts from rocks and debris, coupling impact tests and the natural elements over a period of at least 12 months. Also, three (3) coated L/5 scale rail tank cars vere subjected to a modified JAN Temperature and Humidity Cycle for 2B days. results of these tests shov excellent ~eathering properties The for the THERMO-LAG 330 Subliming Material. The Underwriters Laboratories, Inc. has performed simulated exterior and interior exposure tests folloved by fire tests. The simulated exposure tests consisted of wet, freeze and dry exposure's, exterior aging exposures, carbon dioxide and sulfux dioxide exposures, high humidity'exposures, wearhermometer exposures, chLorine exposures and washing exposures. The results of-tes ts show predic table thermal per formance characteristics these af ter the various exposure tests.
TABLE OF CONTENTS Pane No. LIST OF TABLES LIST OF ILLUSTRATIOllS iii INTRODUCTION ACCEL~TED VEATHERING TESTS ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I IInc T SI j C ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ t ~ ~ ~ ~ ~ ~ ~ ~ Department of Transportation Underwriters Laboratories Other Industrial Evaluations CONK~ V I SINUS OPS ~ ~ ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ REF FENCES RE e ~ ~ ~ ~ o ~ ~ o ~ ~ o s ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ o ~ o o ~ ~ 20 A>PEh',DTY ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~ I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ ~ ~ ~ ~ 21
-1
LIST OF TABLES Table 'No. Title I. CHECKIYG A.'iD CEM.KING . -7.-8
LIST OF ILLUSTRATIONS
~Fi ure Tirls
1. THE EFFECT OF ACCELERATED WEATHERING TQK ON THE WEIGHT LOSS OF THER~0-LAG 330-1 SUBLIMING COMPOUND AS APPLIED TO METAL S UBSTRATES ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ , ~ ~ ~ ~ o ~ ~

2. THE EFFECT OF ACCELERATED WEATHERING TIME ON THE -COATING Tk:ICKNESS EXPRESSED 'AS h PERCENTAGE OF ThE Ct'RED COATING THICK NESS FOR THER'40-LAG 330-1 SUBLIMING C OMP 0 M) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

3. THE EFFECT OF ACCELERATED WEATHERING TIME ON THE ADHESIVE STRENGTH OF 'THERMO-LAG 330-1 SUBLIMING COMPOQtD TO METAL SUB S TRATE S ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ ~ ~ ~ ~
I
4. THE EFFECT OF ACCELERATED WEATHERING TIME ON THE THER~fAL CAPABILITIES OF THERMO-LAG 330-1 SUBLIMING COi~POUND ..........:......

5. JAN TEtiPERATURE A%) HDfIDITY CYCLE .....'.......

6. MODIFIED JAN CYCLE FOR DOT TANK TEST ........;.

7. COMPARISON OF U. L. TEST DATA FOR GiHQfO LAG 330-1 SUBLIMING CO?fPOt".tD WEAT}ZRED TEST PLATES WITH THE THERHAL PERFORMANCE CORRELATION FOR STEEL PLATES AND PIPES . ~ ~ ~ ~ .

8. THE EFFECT OF WEATHERING ON THE THEfQGQo CAPABILITIES OF THERifO-LAG SUBLZ}fING C 0}POUND ~ ' ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 0 ~ ~ ~ ~ ~ I~ ~ ~ ~ ~
~'
EVALUATION OF THE 4'" Aii'.i%I!iG CFCRACTEP.ISTICS OF THER.'!0-LAG 330-l SL."LI.<IVG COiPOLYD AS APPLIED TO ~~TJJ. SLBSTRATES Introduction The effects of, long term environ ental exposure on the ther-mal performance characteristics oz fireproofing materials as ap-plied to metal substrates such as structural steel, pipe racks, storage tanks, and rail tank cars should be known for any reliable-f'reproofing material. Actual tests of long term exposure of the f'reproofing material to the envirbrwent would be desirable; how- .'ever, the time required to perform these tests before actual use in the field is almost p ohibitive. Because of the-long time re-quired for actual environ-ental testing, accelerated weathering test methods have b en devised to predict the long term weathering characteris'ties of applied materials in lieu of long term weathering tests. 'everal standard test methods are currently in use for accelerated weathering tests. The purpose of this report is to evaluate the accelerated weathering tests conducted on Thermo-Lag 330-1 Subliming Compound in terms of its thermal performance, adhesion, coating thickness shrinkage, cracking, checking, and weight loss of the coating. Accelerated Veatherin Tes ts Thermo-Lag 330-1 Subliming Co~ound as applied to metal sub-5 .rat~s has been subjected to several accelerated weathering tests ~ Thes~ tests have been conducted by TSI, Inc., the Department of Transportat.ion, Underwriters Laboratories, and other industrial f-cilities. TSI Inc.,
'ZSl,"'nc., has conducted accelerated weathering tests on Thermo-Lag 330-1 Subliming Compound applied to steel panels using a wea>hering=-machine manu"actured by Atlas Electric Devices Com-pany. This ~eathering unit is fitted with a carbon arc light source, adequate equipment to measure current, voltage, and tem-perature, .".nR equipment to add distilled water for rain simulation. 'Zhe test panels were prepared by applying a nominal wet thick-ness of 200 mils of Thermo-Lag 330-1 material to 4-inch by 12-inch by 1/16-inch steel pixels which had been cleaned with a solvent.
The edges and uncoated portion of the steel panels were protected with a coating of melted ~ax to prevent corrosion of the bare steel. The test panels were- cured for 72 hours in the weathering unit under preva'ling conditions. Twenty five test panels were prepared.
I I I I I I I
I The basic. test procedure used is outlined in Federal Test Standard 14la, Method '6152, dated 9-1-65 or in the hSTM Standardso Briefly, the conditiona ma$ ncainad throughout the teat period were a temperiture of.145 F and a relative humidity of about 9$ ercent. Each cycle consisted of exposure to only ultraviolet ight for 102 minutes followed by expos'ure to ultraviolet Liaht ana rain simu1atian for 18 minutes. It is generaLly accepteZ I- that under these conditions each cycle is equivalent to one day of exterior veatheriag under ambient conditions. Two test panels vere vithdrawn fram the weathering unit- at each time interval to test the effect of the veathering. Th>> effect af the weathering vas 'tested on the veight loss of the coating, the shrinkage of the coating thickness, adhesion of the coating, visual abservatian af chalking and checking,'nd the thermal performance af the caating. The adhesion test vas con ducted according ta AS'618. The thermal performance vas checked by sub)ecting the test panels to a continuous 1800 F flame and measuring tga time required Eor the back aide o! the panel to reach l000 F. The effect af veathering time on the veight Loss of the Thermo-Lag 330-1 Subliming Compound is shown in Figure 1. The initial ~eight 1ass of about 15 percent af the original vet weight occurs during the initial curing of coating. hfter ini ties curing, the weight lass decreases over the next 40 years of simulated time from'the initiaL 15 percent -loss ta about 20 per-cent, Loss based an the original vet veight, at the coating. Thus, the weathering of the coating over a simulated 40 vear period . results in the additional loss of about 5 percent based an the original. vot, veight. Based on the data obtained in this accelerated weathering program, the weight retained can be predicted according to the folloving relationship: 82.684 t0 013~ for tPO 'l) where QL ~ weight loss as percentage af applied veight, X t ~ exposuz>> time, years
-It shauld be noted that the above relationshiy is not valid f'r =-
tia equal ta sero. The initial weight lass to be about lg percent o! applied ueighr. allowed for curing The effect of weathering time on the shrinkage of the coating thickness is presented in Figure 2. Xt should be noted that the coating thickness i's expressed as a percentage of the cured coat- . ing thickness which is about 85 percent, of the wet thickness. The rcauction in coating thickness due to weathering over a 40 year simulated service Life is about 5 percent of the cured coating t thickness.
I I III l'IGUI(E 1: Till I I'l'ECT ACCELI I%TED lfEATIIEltING TIME ON TllE WEXGIlT LOSS ~ rl Ol'l'ill'.INO-LAG 330-1 SUDLIMKNG COMPOUND AS APPLIED -'ZO ME'ZAL SUBSTRA'1'ES.', e e
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Based on the data obtained in th.s accele"ated weathering program, the coating thickness as a pe"certage of. the initial cured thickness can be predictec according to. the following rela-tionship: where T t ~ wea T 97 42 percentage of original cured .thickness; t 'o'r ' 1. t00 (2) the ring exposure time, years The orig'inal'cured coating thickness is about 85 percent of the
ret applied..thickness.
'i'he ffect of weathering t.'-.e on the'dhesive strength in tensiun of the 'Cnermo-Lag 330-1 fireproofing material's give'n in Figure 3. As 'shown in Figure 3, the adhesive strength of short . term weathered material is 'about 97 ps.i and o long te(.m weathered material (about 20 years) is about 83 'psi. 'The rate of decreasing strength is 0.62 psi per year.
Based. on the results fro- this accel rated .'.~atPezing pcogram, th adhesive strength can be estimated from S -0.6238 t ~ I 92.5 . for t )<) (3) where S '=. 'adhesive strength, psi
'5 - '." athering,exposure time, years. ~
Visual obse vation oi the weathered t'st o-ne s were i&de for cia.>c.<ing ~nd chalking oi the- coating. Th~ reported results are.
'i'i',."~ nted in Table L. As sho w in 'iable', no evidence of checking oz ".h>1.'.(:in'as obsess-)ed.'-
Cne iheima1 performance of the- weathered test pane~.s i':-as ~e-tez~~ined by measuring the time reouired fo ,the back side ol the test panel to reach a tempsrature of 1000 F when subjected to f Lame -.emperature of 1800 F-.'onsidering only the t'mes required for th'steel plates to reacn a temperature of 1000 F, the data ~:. indicate that the'hermal. performance is reduced. by about 10 per-cent ovi r a 20-year si-ulated 1'fe for. exterior se(vice. However,
- i% the .reduction'n the coating thickness, which c=n be ai:trib'uted .': )::he con .inued loss of water during curing", 'is cons'idered, ~
t'hen s".b>> l Loss'n thermal performance of the remainiag material ss th >n 10 percent. .To illustrate that,=the reduction in . thermal p( r'.o~aiice is- related more to th . sh inkage in the coating thickness .nan. to th, loss of fireproofing, prop rties, the incident heat flux for each'f the fire exposure tests-was estimated from the follov"ng engineering correlation developed for steel plates coated with Thermo"-Lag 330-1 Subli.-ing Compound: t 25.S96 L(T) (+T) 'W) '()) 1.487 (4)
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,.FIGURE .'I l.~ -'.3: TllE EFl'ECT OF ~ ~,
OF ACCELElNTED iPEATHERXNG TIIEJNO-LAG 330-1 SUBLIMING-COMPOUND TO METAL
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TABLE I: CHECKING AND CHALKING Actual Weatherometer Simulated Checking Chalking Time Li.fe Visual Visual
-Hours Years 0 None None 0 0 None None 72 0.20 None None 72 0.20 None None 168 0.46 - None Non 168 0.46 Nona None 336 0.92 None Nona 336 0.92 None None 672 1.84 None None 672 1.84 None None 1000 2,74 None None 1000 2.74 None None 1500 4.10 ,None None 1500 4. 10 None None 2000 5.50 None None -.
2000 5.50 None 'None 2880 7.90 None None 2880 7.90 None None 3840 10.50 None None
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TABLE I:=Continued Actual Sample Weatherometer Simulated Checking Chalking No. Time Life Visual Visual Hours Years 20 1.0. 50 None None 21 13.20 None 22 4800 13.20 None None 23 U. 20 None r
15. 20 None 7223 19; 80 None Additional test data not included in these tables were conducted after preparation. Additional test data indicates a pot'ential of a minimum of 40.0 years life for THERHO-LAG 330-1 Subliming Compound.
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where t ~ exposure time, minutes
, T ~ coating thickness, inches QT tee.peracure rise 'of metal substra)e, F M ~ weight of metal substr'ate, lbs/ft F incident heat flux, thousands of Btu/hr-ft The thickness used for each calculation of the incident heat flux was the actual thickness measured. The calculated heat flux as a function of weathering time is presented in Figure 4. Considering the actual coating thicknesses, a reducti.on in the thermal perfor-mance of the coating will be indicated by an increasing calculated heat flux. As shown in Figure 4, the thermaL performance of th>>
material has deteriorated very Lityle after 40 years of simulated exterior servicc2(LL,260 Btu/hr-ft for installed condition versus 11,330 Btu/hr-ft after 40 years of simulated exterior service). In Figure 4 the solid line represents a least square data which are shown as circles. fit of the The overall results of the accelerated weathering tests ap-pear to be consi.steat as illustrated by the close agreement be-tween the measured wei.ght and thickness changes and by the between the reduction in coating thickness and thermal r>>La-'ionship performance. In addition to the accelerated weathering test program con ducted by TSI, Inc., additional tests were conducted to determine the compatibiLity of Thermo-Lag 330-1 Sybliming Compound with various chemical solvents and reagents. The test procedures used were basicaLLy those described by Federal Standard Method 59S. The exposure time for these tests was 40 hours. The results of th>> tests indicated that Thermo-Lag 330-1 Subliming Compound is com-patible with the foLLowinl chemicaL solvents and reagentl!
l. 10 percent solution of sodium hydroxide solution of sodium chloride

2. 5 percent

3. 10 percent solution of hydrochloric acid

4. 10 percent solution of sulfuric acid

5. Kerosene

5. Toluene

7. Xylene

8. Hethyl Ethyl X>>ton>>
At the conclusion of the above tests, the samples (ste>>L plat>>s. coated with about 0.150 inches of material) were exposed to a flam>> test which indicated a maximum reduction of about 5 percent in th>> thermal performanca of the coating. De artment of Trans ortation The Department of Trans'portation has been conducting accel-erated life testing of severaL potential fireproofing materials
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.to'be used as a thermal shield for LPG rail tank cars. O..eof the coatings being evaluated is The=.o-Lag 330-'ubl.;..ing Co .pound. In the accelerat'ed life tes".'ing conducted at the Tra"..s-portation Test Center, Pueblo, Cclorado, seven rail tank cars coated with Therro-Lag 330-1 fireproofing--cate 'ial were included.
The accelerated life testing prog'.",a" for these rail ta";.k cars in-cluded-160,000 miles o travel at programed speeds ojer s=ooth and rough rails, salt spray,- chemical environments,. i-pacts from rocks and debris, coupling impact tests, and the natural" elements ove" a period of about. 12 months. Tne prngraz3simulates a service 1fe of about 10 years in actual rail service. Although the 'results o the Accelerated Life Testing Progr~ (ALT) -have not been published, to our knowledge the The~o-Lag 330-1 Subliming coa ing has passed these tests. Ease'd on the conclusion that the coatin'g has successfully passed the ALT Progra=, the coat-ing as applied to LPG rail tank cars has a projected service life of at least 10 years. In.add'ion to* the ALT Progr~' the Ballistic Research Labora-tory at Aberdeen Proving Ground, l".aryland, has ru<a weathering tests on three, 1/5-scale models of LPG rail tank cars.. The three tanks which were coated "ith 200 mils of Thermo-Lag 330-1 1/5-'cale Subl'iming Compound had weathered for two years. at Pueblo, Colorado, prior to being shipped to Aberdeen Proving Ground: It should be no"'ed that during these two years o. weathering no topcoat ?;ad been appl'ed to the coating. A t?.in coat of topcoat was brush applied to the three coated'tanks prior to additional weathering in the Yicrtar and Recoilless Rifle Conditionirg Unit. The weathering or condition'ng test was conducted in accord-ance ~zth Test 105 of'IL-S:D-331.which 'is the JAÃ Te=perature and Hu-:.:idity Cycle normally used'by the A~ .y for testing the chemical stability and safety of fuzes-and munitions. This JP~X C.'clS was modified so that thS te-.,per-ture extremes were -40 F (-65 F specified) and 140 F (160 F specifi d). The standa d. JPN Cycle is sholem in Figure 5 and tne modified JAN Cycle fear the DGT tank car test is given in Figure 6.
,The test was ter" inated after 28 days. 'The Thermo-Lag 330-1
. Subliming coating rex".ained intact on al~. three tank cars (1/5-scale) and sNowed little change in appearance. Photographs were taken for verification. So~e softening of the topcoat was'ob-se ved at the end of the high temperature (140 F), high hu="idity (95 percent) cycles veen checks were m-de during the test. The results of this test by the Ballistics Research Labora-tory show that the, The~iio-Lag 330-1 zireproofing coating has ex-cel ent weathering characteristics in te~s of retaining its ad-
? esion and of no checking, cracking, or blistering.
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FIGURE 5: Continued OPERATIONAL SCHEDULE:
A. Expose fuzes to -45 F cabinet temperature before 1400.
B. ifaintain cabinet temperature of -45 F until 1600. C. Increase temperature of air surrounding fuzes to 160 F (95 % R. H. ) as iapidly as practicable (cabinet must be 70 F (95 / 8,. H. ) by 1030) . D, Decrease the temperature of the a.ir surrounding the Emes to -45 F at an initial rate equal to or greater ".han 35 F per hour for the first 2$ hours. The rate may be changed thereafter but shall be such that -45 oF is reached by 1400 or earlier.. maintain cabinet temperature of 160 F (95 % R. H.) . F. Decrease temperature of cabine t to -60 F. This temperatiu. ~
~ ) be maintained until next operation.
- There may be some s'ioht errors in the schedule due to the poor copy of the JAN Cycle available to us.
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0"..e adiitional point concerning the weathe".'ing and coridition-ing'est con'ducted on these thr'ee 1/5-scale tank cars should be
. emphasized. 'or two years these tanks we'e weathered at Pueblo, Colorado, 'without 'the application. of a topcoat to seal the coating, 'et the coatings on -the tnree -tanks satis=a'ctorily- withstood the 28-day JA4 Cycle Testing progra-.
E s t.'nder 'ri ters Laboratories The Unde~liters Laboratories, Inc., have conducted fire tests on a~plea. of the Thermo-.L'ag 330 Subliming Coating, sysiem after the sa plea had been 'subjected to ~i= lated, exterior and interior envi- .. coiss, ental exposure conditions . Thes e s imulated environmental ex-posure tests consisted of wet, freeze, and dry exposures, exterior aging exposures, carbon dioxide'nd sulfur dioxide exposu"es, high hu-..idity (interior'nd exterior) exposures, wea'therometer exposures, chlorine exposures, and washing exposures. See,Appendix A for addi-ticz:al detai.ls. The results of the evaluation of the ther al per-fo=ance of the Thermo-L'ag 330 Subli-ing Coating sysrem after being subjected to the'bove mentioned eyposure tests are 'prese".red in
. Figure 7. The engineer'ng correlation given by Equation 4 included or. Fig e 7 (shown as a solid line) agrees very well with the results reported by the Underviters L-boratories,- Inc. It should'e noted that the experimental results from the U. L. tests are presented as areas which represent= the uncertainty in the experimental results.
The uncertainty lies. in the fact tha" the, coating thicknesses for the -individual s~ples were not reported." The dry film coating
. ti.icknesses, which;~ere measured prior. to testing, varied between 0 125 a sd 0. 1875 inches. ~ Tne w' "h n the areas in Figu=e 7 re lects the possible variation in t..e d=y film co'ating thickness. Also, th' nu .her .of experimental points (includes a't least one control s~ple ano one expos, d s~ple) in each a" ea varies from. at least t--o (2) experimental points to 24 experimental-points. It should also be 'o:ed theat no allowance for 'coating thickress. shrinwage has been made.
Data from*accelerated weathering tests indicate that the coating thickness may decrease as much as 10 percent upon'ontinued w'eathering or ag'ng of the coating. These results from the U. L. tests- show that the thecal perfor ance of the Thermo-Lag 330 Subliming Coating system can be predicted with considerable conf idence "even af ter weathering. Other Indus trial Evaluations Warren and Corona reported the results of tests run by Hobil and Development concerning the fireproofing capabilitie's 'esearch of vario's fireproofing materials applied to 4-inch schedule 40 pipe. The ~o-Lag 330-1 Subliming Co-pound was one of the materials tested. Although the fire-exposure tests were conducted pri-..arily unweathered s~ples, orse fire-exposure test was run cn a coated
'n p'pe g'hich had been weathered for one year. The wet thickne s- of Ther';o-Lag 330-1 applied to the 4-'nch schedule 40 pipe 'was 0',375
. inches. This test s~ple was subjected to a total engu1 =ent fire
I I I 'I I I
FIGi;R"- 7: CO~PAkISO'8 OF U. L. T" ST eDATA FOR .XH="R.'fO-L'G 330-]. Sb>Li4fi'G CO~HOD ';=~'~'D T:.ST ?LAz"'S WITH TH" Thc.R~'4.L P"-R.OR~~INCi CORELATION FOR ST:"EL PLA~S A'.iD P'LPES. Test points for 500 at least 2 test points) oF Metal Terperature (1!8" plate and .-,
,Test Points for 700 oF <etal Te perature (1/8" plate and'-==
at le'ast 2 test points) Test Points for 500 oF Metal Te-perature (1/4" plate and-at least 24 test points) 200. RR Test. Points for 700 oF .fetal Temperature (1/4" plate an '-= at least 18 test points) I
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I I ~ I I I 4J 25 996 (T) (ET) 2(e)~("-)I E 10, Coating thickness, inc).es Te=jerature rise of "etal: pl'ate, inc ident h'eat f1~ oF'otal Thousands o f B tu/hr- ft
~ ~
of surface area exposed to'- =" fla=e s W e i gh of. e tal subs trate lbs/f t2
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-having a c:aximum heat flux of about 71,700 'Btu/hr-ft 2 (total of rad'nt and corrvective f luxes) . The 0 exposure time reouired or the pipe to reach a temperature of 1000 F ~as reported to be 30 minutes. Et has been sho~~ by 'v.'esson and A sociates," Inc., 7 that the ther al performance of Ther".o-Lag 330-1 a plied to pipes can be predicted using the engineering correlatior. for steel plates the ye "ght of 'the m'etal substrate (designed as V) is expressed if in pounds per square foot of pipe surface area per.foot of pipe length. Using a cured coating thickness of 85 percent of the
~et thickness for the un"eatnered"test s~oles and 97.4 percent of the cu".ed coating thickness for the s~ple v7eathered for the results of the mobil fire tests ~ere co=pa ed to the one'ear, engineering correlation. This co pa"=ison is showa in Figure 8 ~ith the solid line representing the cor".elation, the open points repr'esenting unweathered test results, a-..c the closed point re-presen ing the >reathered test result. It can be seer that the un'-eathered test results agree reasonably ~all vith the correla-tion.
I I I I I I
ICLRE 5,: .":"- EF ECT OF 4:"ATPZRIYG OA W HER~DL CAPA3ILITIES OF TrKR~fO-LAG SLoLIHIVG CO~iOUND r t ~ ~ ' ~ P"
~ ~ ~ ~ P .0 Unweathered coating on 4-inch pip -5 One year ue'athering of coating oh. 4-inch pip I ~ ~ ~
I ~ ~ I I I I I I I I I s I s ~ 100 Correlation for 'plates ~ ~ C
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Vl ~ coating 'thicmess, inches-. X O I I te pere-ture rise of mesal 10 I,
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P y weight of metal substrate, ...- lbs/ft for plates and lbs/ : ft~ of pipe surface/ft of pipe
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incident heat fez, thousands'-====::
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Conclusions Based on the information and experimental data from. the ac- ~ cclcrated weathering t'cst program, the fol'lowing conclusions can* be made:
l. Thermo-Lag 330-1 Subliming Compound has excellent weathering pioperties'nd resistance to various chemicaL solvents and reagents.

2. The overall results from the accelerated wcithering tests con-ducted by TSI, Inc., appear 'to be consistent and reliable.

3. The reduction in thermal performance after 40 years of simu-lated exterior service appeari to be.dependent only on the re-duction in the coating thickness.
4.. The adhesive strength of weathered Thermo-Lag 330-1 Subliming Compound is about 20 percent less than unweathered cured matc-h rial. The measured adhesive strength of 'the weathered fire-proofing coating is about 80 psi. 5 . The thermal performance of thc Thermo-Lag 330-1 Subliming Com-ound.is 'not signi'ficantly affected after exposure to the simu-atcd environmentaL exposure and fire tests performed by the Lhdcrwriters'aboratories.
,Re=erences
1. TSI, Inc., "Accelerated >'eathering - Thermo-Lag 330-1", Report.

2. .TSI, Inc., Technical Brochure.

3. Viergutz and Johnson,. "Test Plan for Accelerated .Life'esting of Thermally Shielded Ta..k Ca"'s", IIT Research Institute, Con-trac't Yo. DOT-TSC-1043 (triarch 3, 1976).
Baicy, L'etter to Mr. Don Levine, Program Yianager, Federal Rail-road Acministrarion',(January 19, 1977).
5. Undertwiters Laboratories, Inc., Letter'eport to TSI, Inc.,
April ll, 1977. J
6. Warren and Corona, "This Method Tests Fire Protective Coatings",
Hvdroc'arbon P ocessin, (January. 1975) .
7. lesson and Lott, "effectiveness of Fire Resistant Coatings Ap-plied to Structural Steels Exposed to Direct'lames Contact, Radiant Heat Fluxes, arid t!echan~ cal and Cryogenic Thecal Shock",
Presented at the AGA 1977 Tra..smission Conference, St. Louis, MO (May 1977) .
8. Me o from SI, 'Inc., on T:".e ..o-'Lag 330-1 Compatibility with various che ical solvents and reagents, (September 27," 1973) .
I I P~Pr ..D.W A I I I I I I Jl
I I I I
UNDER% HITERS LABORATORIES. -INC. 333 PFI WSYE!i ~0 .'KlRTB SAOOK. ILU'%IS 6A062 an independent, not'f or-profit organi ation testing for pubtic safety April 11, 1977 R6802 75m7843 75NE7844 TSI, Inc. 3260 Brannon Avenue St.'ouis, MO 63139 Attention: Mr . Rubin Feldman President
Subject:
Small-Scale Test Program to Evaluate the Pire Resistance Performance of a Mastic Coating When Subjected to Simulated Exterior and Interior Exposure Conditions.
Dear Mr. Peldman:
This Report describes the results of small-scale fire tests conducted to evaluate the *fire resistance performance of a mastic coating applied to steel plates and subjected to simulated exterior and interior environmental exposure conditions. 'Zhe mastic coating material was applied to the steel plates in
Ae same -nanner and with the same equipment used in a previous investigation of fire resistive column designs.
The exterior environmental exposure conditions to.:shich the mastic coating was subjected. included aging, high humidity, industrial atmosphere (CO2-SO2 air mixture) combination wet, freeze and dry cycling, weatherometer and salt spray. The interior environmental test conditions included aging, high humidity, industrial atmosphere (CO2-SO2 air mixture), washing and chlorine. The object of this investigation was to evaluate the effect of the interior and exterior exposures on the fire resistance performance of the coating when subjected to fire exposure of &e.severity discribed by the time-temperature curve, as defined in the Standard, UL263
I I I I I I I
UNDER% RITERS LABORATORIES INC.'6802 Pag'e 2 April ll, 1977 Satisfactory performance of the exposed samples was determined on .the basis of no adverse signs of delamination, cracking, shrinking, or swelling of the mastic coating after exposure to the exterior and interior environmental tests as compa'red to the appearance of the control samples prior.to the fire tests. During the fire tests satisfactory perfomance of the exposed samples was determined on the basis of the intumescence, delamination and fall-off performance characteristics of exposed samples not being adversely affected as compared to the performance of the control samples. Previous environmental tests have shown that some exposure conditions produce somewhat different temperature transmission characteristics of the prote'ction material than the control samples. In some cases the exposed samples exhibited higher unexposed surface temperatures on the steel plate than the control samples during the early portion of the fire tests and, conversely, lower tem-peratures during the later period of the test. In other cases, the exposed samples exhibited lower unexposed surface temperatures throughout the entire test. In view of the variation in un-xposed surface temperature characteristics between the control and exposed samples, and between individual control samplesf and upper limit of 25 percent of the average unexposed surface temperature of the control samples was established for acceptable performance of the exposed samples, except for the salt spray exposure samples. This assumes that the fall-off and intumescents characteristics of the exposed samples under fire exposure were comparable to the control samples. In the case of the salt spray exposure test it has been shown that the unexposed surface temperature exceed the 25 percent upper limit for all presently tested materials, although the overall performance characteristics of the materials with respect to delamination, falloff, and intumescence under fire exposure were not to be seriously affected. Therefore, satisfactory performance in the salt spray exposure test was determined on the basis of delamination, fall-off and intumescent characteristics of exposed sample in comparison with the control samples.
LNDERKRITERS LABOR4TORIES 1n'C. R6802 Page April 3 ll, 1977 DESCRIPTION MATERIALS: The small-scale test samples were constructed using the y~l y61.*1/ t.hi* materials described below: Steel Plates The 1/4 in. thick steel plates measured 5 by 18 in.= Primer The primer, applied to the bare steel plate surfaces, was manufactured by TSI, Inc., and was designated Thermolag 351 Primer. Mastic~Contin .The mastic coating material was manufactured by TSI, Inc., ~d designated Type 330-1. connection with future Follow-Up Service. samples and h * ' intended for exterior use, designated Type 350 Top Coat. was
>>'-*l The formulation and other details of the manufacturing of the mastic coating are on file at the Laboratories for use in manufactured by TSI, Inc.,
The compositiun and other properties of this coating are on file at the -Laboratories for use in connection with future Follow-Up Service. PPZPARATION OF SPALL-SCALE SABLES: The small-scale. samples were sprayed by workmen in the employ of the submittor using equipment designed for such purposes, under the observation of members of the Laboratories'taff. All small-scale samples were sprayed with a coat of primer. Each sample was sprayed in a horizontal position in a -single application. Fifty 10 by 18 in. samples, twenty 10 by 36 in. samples, and ten 5 by 18 in. samples were sprayed to an average Cry film thickness of 5/32 in. Individual thickness readings varied from 4/32 to 6/32 in. The top coat was applied to the samples intended for exterior exposure 18 days later at the rate of approximately 4.2 g per sq ft.
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UNDER% RITERS LABORATORIES lsbC. R6802 I, Page April 4 ll, 1977 TEST RECORD NO 1 SAMPLES Approxim'ately eight months after spraying, the samples vere subjected to the various types of exposure condi.tions. These exposures were as follovs: Exterior and Interior Use Sam les
1. Control - Ten 10 by 36 in., six 10 by 18 in., and three 5 by Z8 in. samples vere conditioned at room temperature.
These samples were used as the controls against vhich the ex-posed samples vere compared. by 1 placed in and to a months. a h'1-yl cxrculating air-oven at 70 C. Samples vere tested after six and nine months in the air-oven. controlled humidity of 97 to 100 percent at 95 F removed for six
4. C02-SO2 Air Mixture - Ten 10 by 18 in. samples were exposed,to an amount of sulphur dioxide equivalent to one percent of the volume of the test chamber, and an equal volume of carbon dioxide at 95 F, vith a small amount of water maintained at the bottom of the chamber. Samples were exposed for one month.
Exterior Use Sam les Onl salt spray for 90 days in accordance with 'the method described in ASTM B117-64.
.6. Wet, Freeze and Dr C cle -'ive 10 .by 36 in. samples were alternately exposed to water (0.7 in. per hr for 72 hr), -40 F for 24.hr and a dry atmosphere (140 F for 72 hr) for .a period of 12 weeks.
7 . Weatherometer Seven 5 by 18 in. samples were exposed =- to ultraviolet light and water by mounting samples vertically on the inside of a cylinder measuring 31 in. in diameter, 18 in. high with two 1/2 in. diameter carbon electrodes located in the center of the cylinder. The cylinder revolved at 1 rpm, exposing the samples to water spray nozzles. During each 20 min cycle; samples are exposed to water spray and light for 3 min and to light only for 17 min for a period of 720 hr.
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L.s DER% RITERS LABORATORlES IYC. R6802 Page 5 April ll, 1977 Interior .Use Sam les Onl
8. Chlorine Three 10 by 18 in. samples- were exposed to a moist arr chlorine atmosphere in a closed chamber at 95 F for six months.: Water maintained in the bottom of the test cham-ber was treated with a dry chlorine compound intended for svimming" pool purification. The dry chlorine was added and main ained at.
three times the normal dosaae recomm'ended to swimming pools.
9. wash1ncS - Five 10 by 36 in. samples were thoroughly vetted with a 2.5 percent solution of "Tide" and vater (25 g "Tide" per 1000 ml of 'water) and left to air dry vithout rinsing.
The exposure cycle was repeated 20 times on each sample. SMALL SCALE FIRE TESTS: During-the fire tests, no attempt was made to restrain expansion of the samples, no load vas applied, and no deflection measurements vere made. The samples were supported during the tests using a precast concrete frame. The furnace temperatures followed the Time-Temperature Curve as defined in Standard UL263. METHOD The temperatures of the furnace chamber were measured by three s~s etrically located thermocouples, placed 12.in. belov the exposed surface. The temperatures of the unexposed surface of the samples described in this Report vere measured by one thermocouple located at the center of each test sample. Each 'thermocouple was covered with a 6 by 6 in. dry asbestos pad. RESULTS
'Character and Distribution of Pire The furnace fire for each o the tests were-luminous and veil distributed; and the temperatures followed the Standard Time-Temperature Curve as outlined in the Standard for Fire-Tests of Building-Constrution and Materials, UL263.
Observations Durin the Tests Most of the samples performed in a sxmx ar manner except for the salt spray and weatherometer samples. All of the samples began to intumesce after approxi-mately 8 min of fire exposure.
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UNDER% RITERS LABORATORIES INC. r R6802 Page 7 April 11, 1977 Since this completes our anticipated work we are instructing our Accounting Department to close Project Nos. 75NK7843 and 75NK784'4 and bill you for charges incurred. Very truly urs g G. D PALZKZJ K . W. HOWELL Engineering Assistant Associate Managing Engineer Fire Protection Department Fire Protection Department RE M. BERKZNZG Engineering Group Leader Fire Protection Department GDP/R%/KWH: 11
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.ACCELERATED WEATHERING FEDERAL STANDARD 141A METHOD 6152
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Rex: t'ederaL btanoara I~La Method 6152 ACCELERATED. WEATHERING The purpose of the test is to evaluate the effect of accel crated long term - outdoor exposure ('40.Q yeari) on several key physical performance par'ameters.of THERHO-LAG 330-1 subliming. compound. Test Mati ria The material under test is THERMO-LAG 330-1 subLiming compound. Test panels are solvent cleaned 4" x 1.2" steel ~ THERMO-IAG 330 1 subliming compound is applied in one application to a nominal wet'thickness of 200 mils and allowed to cure for a period of 72 houx's in the Weathex-0 Meter under px'evaiLing conditions. The back and the edges of each test panel are given a protective coating of melted wax. A aratus The weathering machine .is, a self-contained unit having a caxbon arc as the light source and adequate equipment to measure current voltage and temperature. It is an Atlas Electric Devices Company unit. The light source consists of a sing1e carbon arc operating at a potential of approximately 130 volts at 17 amperes. Atlas Vf.olet Arc .Carbon No. 2 is used. Temperature recording is vade by thexmocouplei. Distilled water fsr rain simulation is employed at a temperature of approximately 70 F. Procedure The procedure is depicted in FederaL Standard 14La, Method 6152 dated 9-1-65 'he total test duration is 7223 houxs (40.0, years outdoor exposure equivalent). Each two hour cycle consists of . 102 minutes exposuxe to ultraviolet light without rain simulation and 18 minutes of exposure to ultraviolet light combined with . rain simulation. A relative humidity of circa 9SX and an ambient temperature of 145 F were maintained throughout the test. A total of 25 test samples were sub]ected to these tests and with drawn in duplicate at selected intexvals as. delineated in Tables. 1"5 The total duration of exposure was noted and recorded fox
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each set of samples withdrawn and tested.
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Ref: Federal Standard 141a . Method 6152 ACCELERATED 4EWTHERZNG The samples after. Weather-O-Meter .exposure were then sub]ected to the following tests: I
1. Net Measurement of THERMO-LAG 330-1 Weight 2~ Net Measurement of THERMO-LAG 330-1 Thickness Adhesion in Tension e'er ASTM D618
.'3. Visual Observation of Chalking and Checking
5. Time Required for the Back Side Temperature of the Test Specimen t'o Reach an Average of 1000 F under Csntinuous Exposure to a Flame Source of 1800 F.
The progression of tests results as a function of recorded time in the Weathex 0-Meter and its correlation with simulated exterior exposure life were made and are reported in Tables 1-5. The general criteria recommended by ASTM was used whereby a two hour exposure to a cycle delineated under "Procedures" above is assumed to yield two days of outdoor exposure. Results The results of the'test program indicates. that the THERMO LAG 330-1 subliming compound may be suitable for use under conditions of continuous exterior exposure for p period of at least 40.0 years. The fire resistive properties remain within a 10'X performance i envelope. The adhesion is orders of ~gnitude higher than that obtained for conventional fire proofing compounds as shown at-the end of the 40.0 year exposure cycle. No evidence of checking or. chalking was observed at the end of the entire exposure period. The weight and the thickness regression was entirely loss during the 'initial curing period with an asymptotic attributed'o-water
.. approach to a maximum 202 water loss (30'T. theoretical) and a maxinssn thiclmess reduction of 18.5'4 (20K theoretical) at the ind of the 40..0 year outdoor simulated cycle..
TABLE 1 ACCELERATED MNC TERM 19.8 YEARS. OUTDOOR - SIMULATED -MEATHERDC TEST THERMO LAC 330 1 SUBLIMING COMPOUND WEIGHT PROGRESSION FINAL THICKNESS ACTUAL .. AS h PERCENTAGE SAMHS WuTHEROMETER SIMULATED VEIGRT NO ~ T~ HCCRS LIFE YEARS MET
'RAMS DRY OF THE ORIGINAL WE7. THICKNESS GRAMS 0 200.69 200.69 2 0 200.72 200.72 .72 0.20 205.70 174.85 85.0 72 0.20 208.71 . 177.41 35.1 5 16$ 0.46 210.72 176;00 83.5 6 '68 0.46 205.71 171. 77 83.5 336 0.92 198.68 164.91 32.0 336 0.92 200.71 166.00 32.7 672 1.84 200.67 164.55 82.0 ao 672 1.84 202.69 166.21 32.1 1COO 2.74 208.72 169.06 ~
31.0 t 1COO 1500 2.74 4.10 203.70 200.35 165.00 162.28
'31.0 31.0 1500 4.10 19f.67, '158. 51 .37.0 2COO 5.50 198.68 160.53 30.8, i 2COO 2330 2330 5.50 7.90 .7.90 ~
200.65 199.67 210.90-162.52 160.33 170.01 30.9 80.3 30.0 I 19
.20 3340 3340 10.50.
10.50 '12 '3205'60 '165.12 171.89 30.3 30.8 4"00 13.20 200.50 162.00 . 30.8 22 4300 13.20 205.68 165. 21 30.3 23 5544 15.20 210.65 166.41 79.0 24
'5 5544 if.20 20$ .92 165.05 .
79 ' 223 19.-80 208.'95 167.10- 30.0
.*One Hour ia equai to One Day.
Additional test data,not included in these tables were conducted after preparation. Additional test data indicates a potential of a minimum of 40.0 years life for THERMG LAG 330-1 Subliming Compound.
ACCELERATED - LONG TERN 19.3 YEARS - C . OOR - SIHULATED MEAZHERIYG TEST TH R..O-LAG 330-1 .::.LI'NIYG COHPOUM) THICKNESS ":".-.iCRESS ION FI'ML THIClQ/ESS ACTUAL AS h PERCENTAGE SAMPLE VEATHERCNETER vi bLAT D HEIGHT OF THE ORIGIVAL NO. TINEA ra ir 4~T DRY 'ET THICKNESS HOLRS YEARS I ACHES INCHES I~CHES
0. 200 0.200 100

2. 0.200 0.200 100 72 0.20 0.205 0.175 35.4 72 0.20 0.208 0.177 35.1 168 0.46 0. 210 0.175 33,3 168 0.'6 0.205 0. 1I1 33.4 336 0.92 0.19$ 0. 164 32.8 336 0.92 '3. 200 0. 166 33.0 672 1.34 0. 199 0.165 32.9 10 672 1.34 0.202 0. 167 32.7 1000 2.74 0.208 0.172 32.7 12 1000 2.74 0.203 0. 168 32.8 13 1500 4.10 0.200 0.16S 32.5 14 1500 4.10 0.195 0.161 32.6 15 2000 5.50 .
0.198 0.163 32.3 16 2000 5.50 0.200 0.164 32.0 17 2890 7.90 0.199 0.163 31.9 18 2880 7.90 0.210 0.172 31.9 19 3840 10.50 0.205 0.167 31. 5 20 3840 10.50 0.212= 0.173 31.6 21 4800 13.20 0.200 0.163 31.5 22 4800 13.20 0.205 0.167 81.5 23 5544 15.20 0.210 0.170 31.0 24 5544 15.20 0.200 0.163 31.5 25 7223 19.30 0.200 0.165 32.5
*One Hour is equal to Onc Day.
Additional test data not included in these tables were conducted after preparation. Additional test data indicates a potential of a minimum of 40.0 years life for THERMO-LAG 330-1 Subliming Compound.
TABLE 3 ACCELERATED - LONG TERM 19.8 YEARS - OUTDOOR - SIMULATED - LEATHERING TEST THERMO-LAG 330-2 SUBLIMING COMPOUND ADHES ZON ACTUAL SAMPLE MEATHEROMETER SIMULATED ADHESION NO TI~ LIFE HOURS YEARS PSI 1 0
'2 0 3 72 0.20 100 72 0.20 95 168 0.46 97 168 0.46 90 336 0.92 93 336 0.92 92 672 1.84 85 10 672 1.84 2000 2.74 89 12 1000 2.74 85 23 2500 4.20 90 14 1500 4.10 92 15 2000 5.50 16 2000 5.50 87 17 2880 7.90 91 18 2880 7.90 85 19 3840 10.50 90 ~
20 3840 20.50 87 22 4800 23.20 85 22 4800 13.20 82'1 23 5544 15.20 24 5544 15,20 ~ 85 25 7223 19.80 86
*One Hour ts equai to One Day.
Additional test data not included in these tables were conducted after preparation. Additional test data indicates a potential of a minimum of 40.0 years life for THERMO-LAG 330-l Subliming Compound.
I I I I I I I I
TA3LE ACCELERATED LOGIC TERM 1'9. 8 YEARS - C"TDCOR SIMULATED MEATHERINC TEST THERMO-LAC 330-1 Sl:BLIMIN COMPOUND CHECKINC 5 CHALKIHC ACTUAL SAMPLE WEATHEROMETER SIMULATED CHECKINC CHALKINC NO. TI~ LIFE VISUAL ~ VISUAL ~ HOURS YE.&S Nant None 2 0 None 3 72 0.20 None None 72'68 0.20 Mont None 5 0.46 Mont None 6 168 0.46 7 336 0.92 None None. 8 336 0.92 None None 9 672 1.34 None None 10 672 1.34 None None 11 1000 2.74 None None 12 1000 2. 4~ None None 13 1500 4.10 None Nant 14 1500 4.10 None None 15 2000 5.50 None None 16 2000 5.50 None None 17 2880 7.90 None Mone 18 2880 7.90 None None 19 3840 10.50 .None None'one 20 3840 10.50 None 21 4800 13.20 Mone None 22 4800 13.20 None None 23 5544 15.20 None Noae 24 5544 !5.20 None None 25 7223 19. 30 Nant None
%no Hour Ls equaL to One Day.
Additional test data not included in these tables were conducted after preparation. Additional test data indicates a potential of a minimum of 40.0 years life for THERMO-LAG 330-1 Subliming Compound.
I TABLE ACCELERATED - LONG TER t 19 ~ 9 YEARS - O'COOR - SIMJLATED P( <ERINC 7EST THERMO-LAG 330-1 SL'BLINING COMPOUND FIRE RES IS7ANCE PROGRESSION ACTUAL ShMPLE MEATHKROHETKR S INSULATED TPK 70 REACH NO. TINE* LIFE 1000'F (1300 FLame HOURS YEARS MINUTES 2 0 0'.20 72 126 72 0.20 124 168 0;46 121 168 0.46 120 336 0.92 122 8 336 0.92 120 9 672 1.34 121 10 672 1.84 127 11 1000 2,74 122 12 1000 2.74 125 13 1500 4.10 120 14 1500 4. 10 123 15 2000 5.50 127 16 2000 5.50 119 17 2880 7.90 122, 18 2880 7.90: 121' 19 3840 10.50 .120 20 3840 10.50 119 21 4800 13.20 118 22 4800 13. 20 119 23 . 5544 15.20 119 24 '544 15. 20 115 . 25 7223 19. 30 .117
*One Hour '.s equal to One Oay.
Additional test data not included in'these tables were conducted after preparation. 'dditional test. data indicates a potential of a m>> ..imum of 40.0 years life for THERMO-LAG 330-1 Sublf+ng Compound.
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ML17139A455

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ML17139A455

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