4th Edition Regulations

From 1st October 2009, electrical installers and planners will have to comply with a new set of Wiring Regulations aimed to make installations across the country safer. The 4th Edition Wiring Regulations, published by the ETCI, stem from CENELEC’s Harmonised Document 60384, and replace the 3rd Edition Regulations published in 2000.

Some sections in the regulations affect Hager’s products directly, and the relevant sections can be seen below. Please download “Hager’s Guide to the 4th Edition” booklet by clicking here, which will explain the relevant regulations, and Hager’s solutions aimed at making installations easy to be compliant.

Cable Joints & Connections

Connections between conductors and other electrical equipment shall be made in such a way that safe and reliable contact is ensured. Connections that are not accessible shall be made by special means that prevent loosening, such as brazing, welding, exothermal heating or crimping.
 

Location of Consumer Units

A distribution board shall be located in a location where it is readily accessible. A wallmounting distribution board shall be mounted at a height not exceeding 2.25m measured from the floor to the top surface of the board or 1.4m measured from the floor to the bottom of the board.
 

Bathroom applications

The Regulation have expressed the need for extra RCD / RCBO protection when installing in certain situations. In this section it deals with requirements for installing water heating appliances, (such as a shower unit or immersion heater), and also for electrical equipment in rooms with baths and/or shower basins.

Protection of "meter tails"

The new 4th Edition Regulations take into account the fact that often the cables running from the ESB supply meter to the consumer unit in a premises are not protected with any device. The Regulations now state that all such cables, if longer than 3m, must be protected with no less than a 63A protective device.

Surge Protection

Different types of companies rely on a constant supply of electricity in order to keep machines or equipment running. Even slight or brief surges of electricity in circuits can often lead to machinery or equipment being damaged, which can have adverse effects, for business owners or end users. Such installations, which depend greatly on the smooth running of equipment, are recommended to have extra protection for electrical surges, which will minimise damage to equipment or machinery.

Special Installations

Depending on the type of installation, Part 7 of the Regulations sets out to ensure that circuits have the necessary RCD sensitivity and in turn that the devices are housed in the correct enclosure type.
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    Furry Park Industrial Estate
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