Welcome to our FAQ’s page where you will find answers to the most commonly asked questions.
This is a building regulation which was introduced January 2005, to reduce the number of injuries, fires and deaths caused by faulty installations, making it more difficult for incompetent installers to leave electrical installations in unsafe conditions.
The NICEIC, National Inspection Council for Electrical Installation Contracting is the electrical contracting industry’s independent voluntary body for electrical installation matters. It offers support, leading certification services, Building regulations schemes, products and support to electrical contractors and many other trades.
A periodic Inspection is an inspection of the current condition of an existing electrical installation.
Every electrical installation may deteriorate with time. It’s relevant for the individual responsible for the maintenance of the installation to be confident that the safety of the user is not at risk and that the installation continues to be in a safe and reliable condition.
It is necessary therefore for the installation to be periodically tested with a condition report obtained. Any deficiencies noted during this inspection and testing may then be remedied so that the installation may continue to be used in safety.
The target voltage in the Uk is now 230 volts, it used to be 240 volts. The supply from the energy providers can be within +/- 10%, this could mean you have 253 volts at you outlets. With most equipment now designed for the European market which used to run at 220 volts, you have an ‘overvoltage’ which can shorten the life of the equipment. One product on the market now to counter this is what is called a ‘Voltage optimiser’.
RCD’s and RCBO’s monitor the current flowing in the Live and neutral conductors of a circuit. If it senses an imbalance, there is a short to earth, it cuts the supply before the current reaches dangerous levels. For personal protection this is 30mA and the time on a circuit with sockets is under 40m/s.