Jargon Buster

Electrical Information and Safety Advice Sheffield - Atom Electrical Services Ltd has essential information and advice directory on electrical safety,electrical regulations and procedures for members of the public and home owners....

Whether your whole house is being rewired or you’re just having some new sockets fitted, it helps to know the difference between a consumer unit and a circuit breaker. To help you understand what your electrician is talking about, we’ve put together a jargonbuster to explain below some of the more common terms used.
 

A-Z of Carbon Jargon

A-Z of Carbon Jargon

An A to Z of the key terms linked to carbon-related issues as well as terms commonly used by those working towards a sustainable built environment.

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BS - British Standard

BS - British Standard

British Standard BS 7671 – also known as the IEE (Institute of Electrical Engineering) wiring regulations. Details the requirements for electrical installations and is the standard against which all NICEIC contractors are assessed. To enrol with NICEIC all electricians, and anyone they employ, must meet this national safety standard.

Circuit

Circuit

An assembly of electrical equipment (socket outlets, lighting points and switches) supplied from the same origin and protected against over current by the same protective device(s).

Circuit-breaker or RCD

Circuit-breaker or RCD

A device capable of making, carrying and breaking normal load currents and also making and automatically breaking, under pre-determined conditions, abnormal currents such as short-circuit currents. It is usually required to operate infrequently although some types are suitable for frequent operation.

Class I equipment

Class I equipment

Equipment in which protection against electric shock does not rely on basic insulation only, but which includes means for the connection of exposed-conductive-parts to a protective conductor in the fixed wiring of the installation. Class I equipment has exposed metallic parts, e.g. the metallic enclosure of washing machine.

Class II equipment

Class II equipment

Class II equipment, such as music systems, television and video players, in which protection against electric shock does not rely on basic insulation only, but in which additional safety precautions such as supplementary insulation are provided, there being no provision for the connection of exposed metalwork of the equipment to a protective conductor, and no reliance upon precautions to be taken in the fixed wiring of the installation.

Class III equipment

Class III equipment

Equipment, for example for medical use, in which protection against electric shock relies on supply at SELV (Safety extra low voltage) and in which voltages higher than those of SELV are not generated. Class III equipment must be supplied from a safety isolating transformer.

Consumer unit

Consumer unit

Also known as a fusebox, consumer control unit or electricity control unit. A particular type of distribution board comprising a co-ordinated assembly for the control and distribution of electrical energy, principally in domestic premises, incorporating manual means of double-pole isolation on the incoming circuit(s) and an assembly of one or more fuses, circuit-breakers, residual current operated devices or signalling and other devices purposely manufactured for such use.


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Electrical Information and Saf...

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Electrical Information and Safety Advice Sheffield - Atom Electrical Services Ltd has essential information and advice directory o...

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