Hull Construction Regulations

43 (1) If any “A” Class division is pierced for the passage of electric cables, pipes, trunkways, girders or beams, or for other purposes, the arrangements shall be such that the effectiveness of the division in resisting fire is not thereby impaired.

(2) Where a trunkway passes through an “A” Class division,

• (a) an automatic-closing fusible link fire damper shall be fitted adjacent to the division, the fusible link being located within the trunkway;

• (b) the damper shall be capable of being manually operated from both sides of the division and the operating positions shall be readily accessible and permanently marked in red;

• (c) indicators shall be fitted to show whether the damper is open or shut; and

• (d) the trunkway between the damper and the division shall be as effective as the division in resisting fire.

(3) Any opening in a division shall be provided with means of closure permanently attached to the division and the means of closure shall be as effective as the division in resisting fire.

(4) In the case of a ship the keel of which was laid before March 22, 1967,

• (a) any door in a division shall be so constructed that it can be opened and closed by one person from either side of the division and the door and the means of keeping it closed shall be as effective as the division in resisting fire, except that a watertight door shall not be required to be insulated; and

• (b) where the division is constructed in compliance with subsection 42(2) and any door therein is not a watertight door, such door shall

  • (i) have a locking device of the three-way shoot bolt type or its equivalent,

  • (ii) be self-closing and easily released from the open position, and

  • (iii) have a fusible link fitted in the release arrangement.

(5) In the case of a ship the keel of which is laid after March 22, 1967,

• (a) any door in a division shall be so constructed that it can be opened and closed by one person from either side of the division and the door and the means of keeping it closed shall be as effective as the division in resisting fire, except that a watertight door shall not be required to be insulated;

• (b) fire doors in main vertical zone bulkheads and stairway enclosures, other than fire doors that are normally locked, shall be self-closing and capable of closing against an inclination of 3 1/2 degrees opposing closure;

• (c) fire doors in main vertical zone bulkheads and stairway enclosures, other than fire doors that are normally closed, shall be capable of release either simultaneously or in groups from a control station and also individually from a position at the door and the release mechanisms shall be so arranged that the doors will automatically close when the control system is disrupted;

• (d) hold back hooks that are not capable of being released from the control station shall not be fitted; and

• (e) approved power operated sliding watertight doors shall not be required to be insulated and shall be acceptable as complying with the requirements of paragraphs (b) and (c).

(6) Where fire doors referred to in paragraph (5)(c) are double swing doors, they shall be fitted with a latch arrangement that is automatically engaged by the operation of the door release system.