592
THE HONG KONG GOVERNMENT GAZETTE, AUGUST 3, 1934.
Boiler, etc., enclosure.
Switch- boards, control
apparatus, etc.
Switch- boards, platforms,
etc.
(2) The enclosure referred to paragraph (1) of this regula- tion shall be provided exclusively for the accommodation of such apparatus, and water and gas pipes shall be excluded therefrom. Means shall be adopted to the satisfaction of the Building Authority and the Licensing Authority to prevent smoke or gasses passing into the enclosure.
75. Boilers, engines and other plant used for generating electricity, and secondary batteries, shall be installed in en- closures. The enclosures shall be of adequate size, shall be constructed of fire-resisting materials and shall be adequately ventilated to the satisfaction of the Building Authority and the Licensing Authority.
76.-(1) Connections to stage switchboards and other large control boards shall be readily accessible and any live conductors at the back of such boards sha be protected to the satisfaction of the Licensing Authority.
(2) All parts of switches and fuses, and any conductors. which are alive or liable to become alive, shall be so protected that accidental contact with them will be impossible. Pro- vided that this paragraph shall not apply to any such apparatus installed in a position which is recognised by the Licensing Authority as being accessible only to skilled electricians.
(3) Switch and fuse boards and other controlling ap- paratus shall, wherever practicable, be installed in positions inaccessible to the public. If the Licensing Authority agrees in writing to such apparatus being installed within reach of the public, arrangements shall be made to prevent interference by any unauthorised person. Cut-outs shall not be installed in positions where they will be visible to the assembled public.
(4) Local switching for lighting shall be avoided as far as practicable in all parts of the premises accessible to the public.
(5) The rating of switches which are liable to frequent operation shall be for currents 50 per cent, in excess of the maximum current of the main circuits or sub-circuits con- trolled.
(6) When practicable motor-starting switch gear shall be installed close to the motor controlled thereby and shall be so placed that the motor is clearly visible to the operator. Any apparatus or switch which may be provided for speed control or for stopping shall, if installed away from the motor, be so arranged that it cannot be used as a starter.
If in the circumstances of the case the permission of the Licensing Authority in writing is given to the remote control of motors, a suitable isolating switch shall be installed close to the motor.
(7) Ironclad and other enclosed switches, other than tum- bler switches, shall have the "On" and "Off" positions clearly indicated.
(8) Switches and cut-outs shall be labelled as may be considered necessary by the Licensing Authority, to indicate clearly the main circuits or sub-circuits which they control.
77. (1) Ample space shall be provided for the con- venient operation and proper maintenance of all switch gear; any platform which may be provided for such purposes shall be of fire-resisting construction, and the floor shall be of a
No comments yet.
Private notes are available after approval.