Articles

Central Heating Boiler Wiring Connections

19 January 2012

This article may prove useful to electricians when connecting a boiler to a new or existing central heating system with pump over-run. The diagrams show some of the most commonly found domestic boiler control panel wiring connections. Electrical Connections to Boilers Only competent and trained persons such as qualified electricians, plumbers and gas fitters should attempt to [...]

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Why do TT systems require RCDs to achieve 0.2s disconnection time?

9 January 2011

One of the main aims of Electrician’s Blog is to define and clarify anything relating to an electrician’s job and this obviously includes the BS7671 Wiring Regulations. I normally refer technical questions to the forums or to an expert such as Chris Kitcher, but when Darren K emailed me and asked “Why RCDs are used [...]

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CompEx Training

2 June 2010

CompEx Training for Electricians The Electricity at Work Regulations require anyone working in an environment with potentially hazardous or explosive atmospheres to undergo relevant training. Electricians may be required to hold a CompEx qualification. What is CompEx? CompEx is the leading national training, assessment and certification scheme for electrotechnical craftspersons working in potentially hazardous or [...]

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Emergency Lighting

1 June 2010

Emergency lighting systems are normally required to operate fully automatically in the event of a power failure.  Their main function is to illuminate escape routes and fire exit signs and to enable people to evacuate a building safely when the power supply to the normal lighting fails. The following article describes the different types of [...]

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Female Electricians

8 April 2010

    Female Electricians   Although many women work in the electrical trade I haven’t personally come across any lady electricians yet. I was sure there must be some around and I eventually found that Floyd Electrical Services (Kent) and Synaptica (Hertfordshire) use female electricians. One advantage the ‘ladies’ may have over us ‘gentlemen’ tradespersons is [...]

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Feed-In Tariffs

1 April 2010

.            An Energy Efficient Home FITs  Feed-in Tariffs (FITs) are financial support measures introduced by the government to increase the uptake of small-scale renewable generation. Renewables eligible under FITs are Solar, Small Wind, Small Hydro and  Anaerobic Digestion  (Biogas).  The tariffs are for 20 years with 25 years for solar. [...]

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Maintenance Free Connections

21 February 2010

  Maintenance Free Connections It never has been ‘best practice’ to install cable joints at inaccessible locations such as under floorboards, underground or at high level and common sense tells us that maintenance free connections are always best. As electricians we spend our lives figuring out the best way to route our cables so as [...]

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Battery Recycling

1 February 2010

  Disposal of old batteries BatteryBack are a company who have now made it easier to dispose of old batteries. They provide BatteryCans, which are specially-designed collection canisters of various sizes, at local authority civic amenity sites, schools, supermarkets and other retailers Currently, the UK recycles less than 3 per cent of portable batteries, with [...]

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