Statutory Documents - MCA Publications - LY3 - The Large Commercial Yacht Code - 14B Structural Fire Protection - Vessels of 500GT and Over - 14B.2 - 14B.2.6 Protection of stairways and lifts in accommodation and service spaces
14B.2.6 Protection of stairways and lifts in accommodation and service spaces
14B.2.6.1 A stairway should be of steel frame construction except where the Administration sanctions the use of other equivalent material, and should be within enclosures formed of "A" class divisions, with positive means of closure at all openings, except that:
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.1 an isolated stairway which penetrates a single deck only may be protected at one level only by at least "B" class divisions and self-closing door(s); and
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.2 stairways may be fitted in the open in a public space, provided they lie wholly within such public space.
14B.2.6.2 A stairway enclosure should have direct communication with the corridors and be of sufficient area to prevent congestion, having in view the number of persons likely to use them in an emergency. In so far as is practical, stairway enclosures should not give direct access to galleys, machinery spaces, service lockers, or other enclosed spaces containing combustibles in which a fire is likely to originate.
14B.2.6.3 A lift trunk should be so fitted to prevent the passage of flame from one 'tween-deck to another and should be provided with means of closing to permit the control of draught and smoke.
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