1.1 Under the provisions of the International
Code of Safety for High Speed Craft (HSC Code),
(resolution MSC.36(63)), constructions for use in craft should have
fire-resisting properties to the satisfaction of, and be approved
by, the Administration. In this context “fire-resisting property"
is the ability of the construction to insulate/protect and area from
the influence of a fire in an adjoining area by having separating
performance during a fire. Such constructions are fire-resisting bulkheads,
decks, ceilings, linings and doors.
1.1.1 Fire-resisting divisions for moderate fire
hazard are classified as “fire-resisting divisions 30".
1.1.2 Fire-resisting divisions for major fire
hazard are classified as “fire-resisting divisions 60".
1.2 The classification should be expressed in
the form of, for example, “Load bearing fire-resisting deck
60" and “Non-load bearing fire-resisting bulkhead 30", i.e.
including the qualification on orientation of the division together
with a statement if the division in question is evaluated as load
bearing or as non-load bearing.
1.3 Testing of fire-resisting divisions and reporting
should generally be in accordance with the requirements given in resolution A.754(18). Where additional
interpretation, adaptation and/or supplementary requirements may be
necessary, these are detailed in this resolution.
1.4 The test should continue for a minimum of
30 min for fire-resisting divisions 30, or 60 min for fire-resisting
divisions 60, or for an intermediate fire protection time when allowed
in accordance with paragraph 7.4.1.1 of
the HSC Code.
1.5 The following performance criteria for insulation
and integrity should be fulfilled within the classification period
(see 1.4):
.1.1 the average unexposed face temperature rise
should not be more than 140°C, and the temperature rise recorded
by any of the individual unexposed face thermocouple should not be
more than 180°C; and
.2.1 there should be no flaming on the unexposed
face;
.2.2 there should be no ignition, i.e. flaming
or glowing, of the cotton wool pad; and
.2.3 it should not be possible to enter the gap
gauges into any opening in the specimen.
1.6 In this resolution, testing of fire-resisting
division is described in three separate parts:
- non-load bearing fire-resisting division;
- load bearing fire-resisting divisions having a structural metal
core as presupposed in resolution
A.754(18) for “A" class divisions; and
- other load bearing fire-resisting divisions.