SAFETY OF LIFE AT SEA C63 



Regulation 38 



Openings in "A" Class Divisions (Methods I, II and III) 



(a) Where " A " Class divisions are pierced for the passage of electric 

 cables, pipes, trunks, ducts. &c. for girders, beams or other structures, 

 arrangements shall be made to ensure that the fire resistance is not impaired. 



(b) Dampers are to be fitted in ventilation trunks and ducts passing 

 through main vertical zone bulkheads, and shall be fitted with suitable local 

 control capable of being operated from both sides of the bulkhead. The 

 operating positions shall be readily accessible and marked in red. Indicators 

 shall be fitted to show whether the dampers are open or shut. 



(c) Except for tonnage openings and for hatches between cargo, store, 

 and baggage spaces, and between such spaces and the weather decks, all 

 openings shall be provided with permanently attached means of closing which 

 shall be at least as effective for resisting fires as the divisions in which they 

 are fitted. Where " A " Class divisions are pierced by tonnage openings the 

 means of closure shall be by steel plates. 



(d) The construction of all doors and door frames in " A " Class 

 divisions, with the means of securing them when closed, shall provide 

 resistance to fire as well as to the passage of smoke and flame as far as 

 practicable equivalent to that of the bulkheads in which the doors are 

 situated. Watertight doors need not be insulated. 



(e) It shall be possible for each door to be opened from either side of the 

 bulkhead by one person only. Fire doors in main vertical zone bulkheads 

 other than watertight doors shall be of the self-closing type with simple and 

 easy means of release from the open position. These doors shall be of 

 approved types and designs, and the self-closing mechanism shall be capable 

 of closing the door against an inclination of 3^ degrees opposing closure. 



Regulation 39 



» Bulkheads within Main Vertical Zones (Methods I and III) 



(a) Method I 



(i) Within the accommodation spaces, all enclosure bulkheads, other than 

 those required to be of " A " Class divisions, shall be constructed of 

 " B " Class divisions of incombustible materials, which may, however, be 

 faced with combustible materials in accordance with Regulation 48 of this 



Ch. 2 



