Fire Resistance Testing of Bulkhead and Deck Penetrations

The U.S. Coast Guard and the Canadian Coast Guard conducted a joint test program to obtain data on the passage of flame, smoke, and heat through penetration items in Class A-O and Class A-60 deck assemblies. This data is to be used in establishing performance criteria for penetrations submitted for...

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Bibliographic Details
Main Authors: Beene,David E , Jr, Howes,Jack H
Format: Report
Language:English
Subjects:
BARRIERS
BULKHEADS
COAST GUARD SHIPS
FIRE RESISTANCE
Firestops
Marine Engineering
PENETRATION
Safety Engineering
SHIP DECKS
SHIP FIRES
THERMAL INSULATION
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Summary:The U.S. Coast Guard and the Canadian Coast Guard conducted a joint test program to obtain data on the passage of flame, smoke, and heat through penetration items in Class A-O and Class A-60 deck assemblies. This data is to be used in establishing performance criteria for penetrations submitted for U.S. Coast Guard approval. All testing was carried out by Underwriters Laboratories in accordance with UL 1479, Standard for Fire Tests of Through-Penetration Firestops. Underwriters Laboratories' 1-meter furnace was used for all fire tests. Twenty-one combinations of penetration items were tested in Class A-0 and Class A-60 firestop assemblies. Two samples of each penetration item were tested: one in a Class A-0 deck assembly and one in a Class A-60 deck assembly. The Class A-0 deck assembly was a 36-inch x 36-inch x 3/16-inch (91.4 cm x 0.5 cm) steel plate. The Class A-60 deck assembly consisted of a steel plate identical to that used in the Class A-0 assembly, but rockwool insulation was applied to the fire side of the steel plate and penetration item. Nineteen of the twenty-one penetration items passed the requirements for a Class A-0 fire rating while only fourteen of the twenty-one items passed the requirements for a Class A-60 fire rating. A-60 fire rating. The test results identified combinations of construction techniques for piping, ducting, and electrical cable penetrations which could be used to meet Coast Guard requirements for piercing Class A-0 and Class A-60 decks and bulkheads.