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THE HONG KONG GOVERNMENT GAZETTE, AUGUST 3, 1934.
non-conducting material or shall be covered with an insulating Guardrails and step-ladders with handrails shall be pro- vided where considered necessary by the Licensing Authority.
mat.
(2) If considered necessary by the Licensing Authority for obviating risk of shock, guardrails shall be constructed of English oak or teak, and any metalwork within reach of a person on the platform shall be satisfactorily protected.
78. (1) Wiring shall not be run in a ventilating duct, Wiring. flue or air shaft, or installed in a lift unless it is essential for the operation of the lift.
(2) A cable duct shall be stopped at any point at which it passes through a fire-resisting wall or floor so as to prevent the passage of fire or smoke from one section of the duct to another.
(3) Cable ways shall not be formed in the protective covering of structural steel work,
(4) Conduit shall be efficiently protected against corrosion.
(5) Where cables are permitted without conduit or similar protection (e.g., for connections to battens), they shall be efficiently protected by an asbestic or other non-inflammable covering and shall be supported to the satisfaction of the Licensing Authority. This regulation shall not apply to cables used in connection with portable apparatus.
(6) The use of flexible cord or cable shall be avoided whenever practicable. In any case in which such a conductor is permitted, it shall be as short as possible. Each cord or cable shall be fitted with a separate plug connection.
(7) Sub-circuits for current-consuming devices other than lamps shall not be connected to lighting circuits. Provided that any such device which consumes not more than 500 watts may be connected to a separate sub-circuit of a lighting dis- tribution board.
(8) Sub-circuits from one source of supply only shall be taken into any fitting, and a voltage greater than 250 shall not exist between any conductors in any fitting.
(9) Multiple core and bunch cables shall be suitably in- sulated and protected.
etc.
79.—(1) All suspended fittings or apparatus, other than Fittings, small single-lamp pendants fitted at a height of less than ten accessories, feet above the floor level, shall be provided with satisfactory means of suspension independent of the conductors. Heavy pendent fittings or apparatus shall, unless rigidly fixed, be provided with two means of suspension independent of the conductors. A self-sustaining winch shall be provided for such fittings or apparatus, if the Licensing Authority so re- quires. Proper means of access shall be provided for the inspection and maintenance of the fittings or apparatus.
(2) Fittings and accessories liable to interference or damage shall be protected to the satisfaction of the Licensing Authority.
(3) A sufficient number of sockets shall be installed to minimise the use of flexible cords or cables. Plugs and acces- sories connected to flexible cords or cables shall be fitted with suitable clamps to grip the protective covering of the con- ductors.
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