根据solas要求,所有围壁都要是A-0级的。
Chapter II-2-Regulation 3
Definitions
For the purpose of this chapter, unless expressly provided otherwise, the following definitions shall apply:
1 Accommodation spaces are those spaces used for public spaces, corridors, lavatories, cabins,
offices, hospitals, cinemas, game and hobby rooms, barber shops, pantries containing no cooking
appliances and similar spaces;
2 "A" class divisions are those divisions formed by bulkheads and decks which comply with the
following criteria:
.1 they are constructed of steel or other equivalent material;
.2 they are suitably stiffened;
.3 they are insulated with approved non-combustible materials such that the average
temperature of the unexposed side will not rise more than 140ºC above the original temperature,
nor will the temperature, at any one point, including any joint, rise more than 180ºC above the
original temperature, within the time listed below:
class "A-60" 60 min
class "A-30" 30 min
class "A-15" 15 min
class "A-0" 0 min
.4 they are constructed as to be capable of preventing the passage of smoke and flame to the
end of the one-hour standard fire test; and
.5 the Administration has required a test of a prototype bulkhead or deck in accordance with
the Fire Test Procedures Code to ensure that it meets the above requirements for integrity and
temperature rise.