【法规名称】
【法规编号】 79763 什么是编号？
【正 文】
第3页 CAP 406A ELECTRICITY SUPPLY REGULATIONS
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[接上页] (2) This regulation shall not apply in the case of an electric line placed in a lamp post. Cap 406A reg 5 Insulation test of low pressure and medium pressure mains Every low pressure and medium pressure main, after having been placed in position and before it is used for the purposes of supply, shall withstand a pressure equal to the maximum pressure to which it is intended to be subjected in use, and in any case at least 200 volts, and further, before being used as aforesaid it shall be tested for insulation, and the company shall duly record the results of the tests of each main or section of a main. Cap 406A reg 6 Testing of insulation of all parts of high pressure circuit A high pressure circuit shall not be brought into use unless the insulation of every part thereof has withstood the continuous application, during 1 hour, in the case of every electric line, of a pressure equal to the full working pressure to which it is intended to be subjected in use, and in the case of every machine, device or apparatus, of a pressure equal to the full working pressure to which it is intended to be subjected. The company shall duly record the results of each test. Cap 406A reg 7 Maintenance of insulation There shall be maintained by the company at each station or sub-station as may be necessary a leakage indicator of approved pattern and so arranged that the leakage on each main feeder can be readily ascertained at any time and a weekly test recorded. If at any time the leakage is in the opinion of the Director of Electrical and Mechanical Services excessive, he shall require the company to remedy the same and it shall forthwith be remedied: Provided that where any part of any electric circuit is connected with earth either in accordance with these regulations or with the approval of the Director of Electrical and Mechanical Services, the provisions of this regulation shall not apply to that part of that circuit so long as the connection with earth exists. (L.N. 76 of 1982; L.N. 298 of 1982) Cap 406A reg 8 Circuit-breaker for high pressure mains, etc. Every high pressure main, conductor or other apparatus shall be protected by a suitable fuse or automatic circuit-breaker: Provided that it shall not be incumbent upon the company to provide such a fuse or circuit-breaker for the outer conductor of a concentric main which is, in accordance with these regulations or with the approval of the Director of Electrical and Mechanical Services, efficiently connected with earth. (L.N. 76 of 1982; L.N. 298 of 1982) Cap 406A reg 9 Transformers In every case where a high pressure supply is transformed for the purpose of supply to 1 or more consumers, some suitable automatic and quick-acting means shall be provided to protect the consumer's wires from any accidental contact with or leakage from the high pressure circuit, either within or without the transforming apparatus. Cap 406A reg 10 Connection of transformers with earth The metallic portion of every high pressure transformer, with the exception of the conductors thereof, shall be efficiently connected with earth except in respect of transformers supported on poles at such a height as to be inaccessible except by the use of a ladder or other special appliance: Provided that in such cases such poles shall be efficiently connected with earth. Cap 406A reg 11 Protection from lightning Where any portion of any electric line or any support for any electric line is exposed in such a position as to be liable to cause injury from lightning, it shall be efficiently protected against such liability. Cap 406A reg 12 (Repealed) (Repealed L.N. 215 of 1990) Cap 406A reg 13 Specifications and requirements respecting lines, line conductors, etc. PART I GENERAL (1) Line conductors shall be copper, aluminium or such other materials as may be approved by the Director of Electrical and Mechanical Services. (2) All line conductors at the time of erection shall comply, as regards elongation, breaking load and elasticity, with the specification of the British Engineering Standards Association then in force. (3) The minimum permissible size for copper and other line conductors (other than service lines) shall be such as to have an actual breaking load of not less than 1237 lb., the equivalent minimum cross-sectional area and weight per mile for copper being as follows- Conductor Cross-sectional area sq. in. Weight per mile lb. No. 8 S.W.G. ........................................ 0.0201 409 The minimum permissible size of service line shall be such as to have an actual breaking load of not less than 816 lb., the equivalent minimum cross-sectional area and weight per mile for copper being as follows- Conductor Cross-sectional area sq. in. Weight per mile lb. No. 10 S.W.G. ........................................ 0.0129 262 (4) Line conductors shall be rendered inaccessible to any person from any building or other place without the use of a ladder or other special appliance. Regard shall be had to the normal use by the occupier of any premises or land and where necessary (a) the height of the line conductors shall be increased to provide sufficient clearance for safety in accordance with such use, and (b) provision as prescribed in paragraph (14) or (17) shall be made to prevent danger. |
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