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[接上页] (3) No person except an authorized person or a competent person acting under the immediate supervision of an authorized person shall enter an area enclosed or fenced under paragraph (1). (4) A notice in red characters and letters each not less than 50 mm high on a white background reading "危险-带电电线。未经授权,不得内进 DANGER LIVE WIRES-UNAUTHORIZED ENTRY PROHIBITED" shall be placed and displayed in a visible position at every area enclosed or fenced under paragraph (1). Cap 59W reg 17 Location of switchboard apparatus All apparatus and equipment used in or in connexion with a switchboard and requiring handling shall be located and installed so that so far as is reasonably practicable- (71 of 1989 s. 13) (a) such apparatus and equipment can be readily operated from floor level or from a working platform provided for that purpose; (b) all measuring instruments and indicators used in or in connexion therewith can be readily observed from floor level or from the working platform; (c) any such apparatus, equipment, measuring instrument or indicator that cannot be readily operated or observed from floor level or from a working platform, can be otherwise operated or observed without electrical hazard. Cap 59W reg 18 Precautions to be taken against metal becoming live Where necessary to prevent electrical hazard adequate precautions shall be taken either by earthing or other suitable means to prevent any metalwork, other than the current-carrying conductors, enclosing or supporting any such conductors, from becoming live. Cap 59W reg 19 Precautions to be taken when persons are working on apparatus (1) When work has to be carried out on any conductor, apparatus or switchboard adequate precautions shall be taken, including the prevention of any conductor or apparatus becoming accidentally live, so as to ensure that the work may be carried without undue risk from electrical hazard. (2) A notice in red characters and letters each not less than 50 mm high on a white background reading "危险-在修理中 DANGER UNDER REPAIR" shall be placed and displayed in a visible position at, on or near any conductor apparatus or switchboard being worked on under paragraph (1). Cap 59W reg 20 Provision of protective stands or screens PART V PROTECTIVE EQUIPMENT, LIGHTING AND SPECIAL RISKS Where necessary as a protection against electrical hazard, adequate insulating stands and screens or other protective equipment shall be provided and maintained in good condition and kept permanently in position. Cap 59W reg 21 Provision and use of protective stands, screens, boots and gloves (1) Portable insulating stands, screens, mats and covers and insulating boots, gloves or other protective equipment shall be provided and maintained in good condition for use where necessary as a protection against electrical hazard. (2) Every person working on apparatus shall make proper use of any equipment provided under paragraph (1). Cap 59W reg 22 Provision of access to and working space for apparatus All apparatus which, in normal use, requires operation or attention by any person shall be installed so that adequate access and working space are afforded for its operation and attention, without electrical hazard. Cap 59W reg 23 Lighting of apparatus Where necessary as a precaution against electrical hazard, adequate lighting shall be provided in all parts of the premises where apparatus which, in normal use, requires operation or attention by any person is installed. Cap 59W reg 24 Precautions for special conditions All apparatus and conductors- (a) exposed to weather, water, corrosive atmospheres or other adverse conditions; (b) exposed to flammable surroundings or explosive atmosphere; or (c) used in any process or for any special purpose other than for lighting or power,shall be so constructed, installed and protected as may in the circumstances of such exposure or use be necessary to prevent electrical hazard or other danger. Cap 59W reg 25 Precaution for apparatus utilizing high voltage Where necessary as a precaution against electrical hazard all apparatus operating at high voltage, shall have placed and displayed in a visible position at, on or near such apparatus a notice in red characters and letters each not less than 50 mm high on a white background reading "危险-高压电力 DANGER HIGH VOLTAGE". Cap 59W reg 26 Qualifications and supervision of persons carrying out work (1) Subject to paragraph (2) no person except an authorized person shall carry out or assist in the carrying out of any work on any apparatus where technical or practical knowledge or experience is required in order to avoid electrical hazard. (2) Notwithstanding paragraph (1) a competent person under the immediate supervision of an authorized person may carry out or assist in such work if- (a) in the case where the electrical hazard to be avoided is under the control of an electrical contractor, he is appointed by the electrical contractor; and |