| (Cap 406, section 59) [1 June 1992] L.N. 100 of 1992 (L.N. 214 of 1990) Cap 406E reg 1 Citation These regulations may be cited as the Electricity (Wiring) Regulations. (Enacted 1990) Cap 406E reg 2 Interpretation In these regulations, unless the context otherwise requires- "approved loading" (允许负载量) means the maximum current demand approved by an electricity supplier in respect of a fixed electrical installation; "breaking capacity" (断流容量) means the value of current at which a switch, a switch-disconnector, a circuit breaker or a fuse is capable of breaking a circuit at a voltage and under conditions of use and behaviour specified by its manufacturer; "category 1 circuit" (第1类电路) means a circuit that operates at low voltage, but does not include a category 3 circuit; "category 2 circuit" (第2类电路) means a circuit for telecommunications, radio, telephone, sound distribution, intruder alarm, bell and call, or data transmission and that is supplied with electricity from a safety source, but does not include a category 3 circuit; (36 of 2000 s. 28) "category 3 circuit" (第3类电路) means a circuit for emergency lighting, air pressurisation systems and fire services installations including fire detection and alarm, fire pumps, fireman's lifts and smoke extraction; "category 4 circuit" (第4类电路) means a high voltage circuit; "circuit" (电路) means an assembly of electrically connected electrical equipment supplied from the same origin and protected against overcurrent by the same protective device or devices; "conductor" (导体) means a wire, cable or other form of metal used for conveying electric current from one piece of electrical equipment to another or to earth; "current-carrying capacity" (载流量) means the maximum current that can be carried by a conductor as determined by using the methods in the "Regulations for Electrical Installations" as published by The Institution of Electrical Engineers, London, England, and as those regulations may be amended from time to time, without the conductor exceeding the permissible limit of steady state temperature for the type of insulation concerned as specified in those regulations; "distribution board" (配电箱) means an installed group of fuses, switches, circuit breakers or other outlet points arranged for the distribution of electricity; "earth"(地) means the conductive mass of the earth whose electric potential at any point is conventionally taken as zero; "earth electrode" (接地极) means a conductor or group of conductors in intimate contact with earth and providing an electrical connection to earth; "earth fault current" (电路的接地故障电流) of a circuit means an unintended current that flows in a circuit when a live part of the circuit comes into direct contact with earth; "earth leakage current" (对地漏电电流) means a current that flows to earth, or to extraneous conductive parts, in a circuit that is not intended to be connected to earth during normal operation; "earthing" (接地) means connecting a conductor with earth; "exposed conductive part" (外露非带电金属部分) means a conductive part of electrical equipment that can be touched and that is not a live part but which may become live under faulty conditions; "extraneous conductive part" (非电气装置金属部分) means a conductive part liable to introduce a potential, generally earth potential, that does not form part of an electrical installation; "final circuit" (最终电路) means a circuit connected directly to current-using equipment, a socket outlet or other outlet point; "isolation" (隔离) means cutting off an electrical installation, a circuit or an item of electrical equipment from every source of electricity; "linked circuit breaker"(连动断路器), "linked isolator"(连动隔离器) or "linked switch" (连动开关掣) means a circuit breaker, isolator or switch the contacts of which are so arranged as to make or break all poles simultaneously or in a definite sequence; "live part" (带电部分) means a conductor that is intended to be energised in normal use, and includes a neutral conductor; "main earthing terminal" (总接地终端) means the terminal or bar provided for the connection of protective conductors, including equipotential bonding conductors, and conductors for functional earthing if any, to the means of earthing; "neutral conductor" (中性导体) means a conductor connected to the neutral point of a system and contributing to the transmission of electricity; "overhead line" (架空电缆) means a conductor that is placed above ground and is suspended in the open air; "phase conductor" (相导体) means a conductor of an alternating current circuit for the transmission of electricity, but does not include a neutral conductor; "residual current device" (电流式漏电断路器) means a device or association of devices intended to cause the opening of contacts when the residual current attains a specified amperage under conditions specified by its manufacturer; |
