• 80. (1) Safety belts, safety lines and life lines shall be of sufficient strength to support a load of 1 134 kg

• (2) Where a safety line or life line is subject to chafing, it shall be made of wire rope or wire core fibre rope.

• 81. (1) No person shall enter or remain in a boiler unless

  • (a) a qualified person has ascertained that the boiler is isolated from every other steaming boiler; and

  • (b) there is another person in attendance at a manhole opening of the boiler.

• (2) The qualified person referred to in paragraph (1)(a) shall ensure that

  • (a) locking devices are fitted to the boiler isolating valves;

  • (b) a person is in attendance at the position where the boiler is isolated;

  • (c) effective warning notices are placed at the position where the boiler is isolated; or

  • (d) blank flanges are fitted between the boiler and every other steaming boiler.

• (3) Every person who is in attendance at a manhole opening of a boiler shall, except where an emergency occurs with respect to the person inside the boiler, remain in attendance until the person inside leaves the boiler.

• (4) No person shall enter the furnace side of any boiler that contains

  • (a) hot water at a temperature in excess of 55°C; or

  • (b) steam under pressure.

82. Before a pressure vessel is sealed, the person in charge of the working area in which the pressure vessel is located shall ascertain that no person is inside the pressure vessel.

83. When manhole covers are to be removed from a boiler, the uppermost manhole cover shall be removed first.

• 84. (1) Subject to subsection (2), no person, other than a person appointed by an authority acceptable to the Board, shall alter or deal with a safety or relief valve of a boiler or other pressure vessel.

• (2) A qualified person may

  • (a) in a case of emergency, adjust a valve referred to in subsection (1); and

  • (b) overhaul a valve referred to in subsection (1), prior to its inspection by a person appointed by an authority acceptable to the Board.

85. Every person in charge of a working area that is in darkness or in which a dimly lighted condition exists shall ensure that portable lights are provided to any person required to enter that working area.

86. Every person on board a towed ship for the purpose of handling the mooring lines of that ship shall maintain visible or audible contact with the operator of the towing ship either directly or with the assistance of other persons.