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[接上页] Cap 285B reg 11 Friction clutches (1) Belt-driven machinery which it is necessary to stop and start without interfering with the speed of the prime mover shall be permanently fitted with a satisfactory mechanical appliance for the purpose. (2) Shipping or unshipping driving belts whilst the machinery is in motion is forbidden, with the exception of the customary shifting of light belts on the pulleys of machine tools for the purpose of alterations in the working speed. Cap 285B reg 12 Air compressors (1) The supply of air for air compressors shall be drawn from the purest and coolest source possible. (2) Receivers, inter-coolers and their connections to air cylinders shall be kept clean and free from carbonized oil or other material liable to ignition and shall be opened for inspection at least once every 3 months in which they may be in use and a written record made of their condition. Cap 285B reg 13 Safety valves All cylinders and receivers for air and gas of a higher pressure than the atmosphere shall be fitted with satisfactory apparatus for showing the pressure of air or gas within such cylinder or receiver while in use and also with relief or safety valve or other apparatus capable of preventing any undue accumulation of pressure above the maximum permissible working pressure of the container. (L.N. 156 of 1963) Cap 285B reg 14 Duty to fence off dangerous places Duty to post notices (1) Dangerous places such as elevated platforms, pits and trap-holes, shall be fenced off so as to safeguard effectively persons in the vicinity. (2) Unauthorized entrances into any place where machinery or steam boilers are erected are prohibited; notice to this effect shall be posted up at all entrances. Cap 285B reg 15 Inspection of electrical installations PART III ELECTRICITY (1) In a mine, the Superintendent of Mines or any authorized mines officer may examine any electrical installation at any reasonable time. (2) If any matter appears to be defective, the Superintendent of Mines shall report thereon to the manager who shall take steps to carry out the necessary repairs within 24 hours of receiving the report. Cap 285B reg 16 Power of Superintendent with regard to blasting PART IV EXPLOSIVES It shall be lawful for the Superintendent of Mines to prescribe in writing- (a) the precautions to be taken in respect of the blasting of any stone, earth or other material in a mine; and (b) the hours during which blasts may be fired off therein. Cap 285B reg 17 Power to sell and buy explosives The manager may sell, and a contractor working in a mine may buy from him, explosives solely for use in connection with any contract in or about the mine so long as such explosives are not sold for profit and remain under the sole control of the mine management. Cap 285B reg 18 Prohibition against storing explosives in closed-down mine (1) When a mine is closed down notice shall be given to the Commissioner of any explosives remaining thereon or therein, and such explosives shall be removed or disposed of in such manner as he may direct in writing. (2) No other explosives may be stored at or in any such closed-down mine or other works without the permission in writing of the Commissioner and in accordance with the provisions of the Dangerous Goods Ordinance (Cap 295). (L.N. 156 of 1963) Cap 285B reg 19 Prohibition against storing explosives underground in excess of estimated requirement (1) Explosives in excess of the estimated requirements for 24 hours shall not be stored underground in a mine and such explosives shall only be stored in underground storage boxes. In no case shall detonators and capped fuses be stored in the same box with other explosives. (2) The following conditions shall apply to all underground storage- (a) storage boxes shall be kept at a safe distance from working faces in dry and secluded places and at least 2 metres away from each other; (L.N. 87 of 1986) (b) the boxes shall be stoutly built of wood sufficiently waterproof, and shall be kept in good repair and securely locked. The shot-firer shall keep the keys and only unlock them for the purpose of placing or removing explosives; (c) on the cover of the box the word "EXPLOSIVES" shall be painted and maintained in distinctly legible letters; (d) no box shall contain more than 10 kilograms of explosives or 100 detonators or capped fuses; (L.N. 87 of 1986) (e) no other materials, implements or tools shall be placed in a box in which there are explosives. Cap 285B reg 20 Prohibition against using explosives other than those supplied by employer Shot-firers shall not use at their working places any explosives other than those supplied to them by their employers. Cap 285B reg 21 Method of carrying and cutting explosives (1) All explosives issuing from a magazine shall be placed, kept and carried in wooden boxes until required for use. (2) Only bone or wooden knives shall be used to cut up sticks of explosives. Cap 285B reg 22 Mine blasting certificate, and matters ancillary thereto |