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Residential Commercial Property Management Retail/WholesaleJARGON BUSTER
17th Edition -
of BS 7671: 2008 wiring regulations came into publication on 21st January 2008. All installations designed and constructed or tested from the 1st July 2008 must conform to the wiring regulations which are the national standard to which all domestic and industrial wiring.Accessory -
switches, sockets, ceiling roses etcBS 7671 -
the UK national standard for electrical installation workCapping -
a thin metal or plastic shaped channel sometimes used to contain cables when fixed to a wall before plastering. Capping is used to make it easy to run several cables following the same route with the minimum use of fixing. It does not provide protection against damage from nails and screws.Chasing -
making slots or grooves into walls in order to allow the installation of cables or wiring systems. Chasing causes a lot of disruption, noise and dust and once completed will require making good (see machining good). In Scotland, chases are known as raggles.Consumer Unit -
a consumer unit or fuseboard is used to control and distribute electricity around the home. It usually contains a main switch, fuses, or circuit breakers and one or more residual current devices(see RCD).Earthing -
the purpose of earthing is to minimise the risk of receiving an electric shock if touching metal parts when a fault is present. This is achieved by providing a path for fault current to slow safely to earth, which would also cause the protective device (MCB, fuses) to disconnect the circuit removing the danger. The electrician will check that the earth and bonding is satisfactory before starting any work.Electrical installation certificate -
a safety certificate issued by the electrician on completion of a new electrical installation, or changes to existing electrical installation. The certificate confirms that the installation has been designed, built, inspected and tested to the UK national standards BS 7671.Flush fitted -
electrical accessories such as switches or sockets installed so that their back boxes are contained in a wall, floor or ceiling and only the front plates are visible. Flush fitting is more aesthetically pleasing but involves chasing (see chasing).Fusebox -
see consumer unitFused connection unit -
enables electricity to be supplied to an item of equipment or appliance providing its method of circuits protection (by fuse) and sometimes includes a switch. Fused connection units are sometimes referred to in the electrical trade as fused spurs (see spur).IEE -
the IEE is the code of practice and guidelines concerning correct procedure for electrical installation work issued by The Institution of Electrical EngineersMain bonding -
connecting metal pipes (gas, water or oil) entering premises to the main earthing terminal of the electrical installation via low resistance conductors.Making good -
restoring the finish of a wall or ceiling that has been damaged and replacing floorboards which have been lifted during the electrical installation work. Usually does not cover full redecoration, but will be the filling in of chase (see chasing) and holes. You may agree with electrician to leave the making good of walls and ceiling to another person such as plasterer / decorator.MCB -
miniature circuit-breaker (commonly known as a circuit breaker). An automatic protective device fitted in the consumer unit which will disconnect a circuit if there is a fault or overload.Mini trunking -
a plastic enclosure having one removable side that is used to install cables on the surface of walls and ceilings.Minor work certificate -
a safety certificate (see electrical installation certificate) used when only an addition or alteration is made to an electrical installation and no new circuits have been added.NICEIC -
National Inspection Council for Electrical Installation Council. The industry's voluntary body set up to monitor standards and safety for electrical contractors throughout the UK. To ensure that the contractor has the necessary skills and qualifications to meet the professional technical challenges of the industry.Partial rewire -
a common situation when it has not been possible or necessary to fully rewire (see rewire) the electrical installation. For example when cabling has been confirmed as being suitable for continued use to minimise the degree of damage and disruption of the decoration. Or where only a part of an installation has suffered damage from the burst of water pipe or similar. If you are considering a partial rewire or it is offered to you as an option by an electrician it is very important that you agree and understand exactly what work is and is not being done before the work starts.Part P -
the specific section of the Building regulation for England and Wales which relates to electrical installation in domestic propertiesPeriodic inspection report (PIR) -
a report on the condition of an existing electrical installation. Containing an overall assessment of the safety of the installation, observation on its condition, and the number of recommendations (in order of priority) for actions, if any required to restore the installation to a satisfactory condition for continued service.RCD -
Residual current device. This is the sensitive switching device that trips a circuit when an earth fault is detected. RCD protection is particularly important for socket circuits that may be used to supply portable equipment for use outdoors.Rewire -
the process of installing new cables, circuits and accessories and caring out the inspection and testing before putting the installation into service. A full rewire should mean that all parts of the electrical installation are new. However you may wish for items such as switches and light fittings to be re-used and the electrician may wish to re-use a part of installation which is electrically sound due to it being difficult to remove and replace. It is very important that you agree and understand with the electrician exactly what work is, and is not being done before the works starts (see partial rewire).Spur -
an additional connection often taken from an existing accessory such as a socket. It may provide a supply to a new socket or a fused connection unit (see fused connection unit).Supplementary earth bonding -
the connecting together of the metal parts of electrical equipment (such as a heated towel rail) and the metal parts of a non-electrical item (such as pipes) to prevent a dangerous voltage between them, if a fault occurs. May be required in bath and shower rooms.Surface mounted -
this is where wiring or electrical accessories such as switches or sockets are installed so that they are on top of the surface or front of a wall, floor or ceiling. This causes less disruption to the decoration but is not as aesthetically pleasing as flush fitting (see Flush fitted). |
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 reg. no 91667 |
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