Electrical safety testing that all connections are sound. Live testing Earth fault loop impedance testing: this test is to check that if a fault did occur, that the system meets requirements to cause a disconnection of the supply within the time limit specified RCD testing: on modern electrical systems RCD’s and RCBO’s are regularly fitted, these devices react to electricity missing from the circuit or installation such as when a person is receiving an electric shock as the electricity passes through his body to the ground (earth). The competent person will then issue an Electrical Installation Condition Report (EICR) also known as Periodic
Camlock (electrical) neutral and is now a phase colour, and blue which used to denote a phase is used to denote neutral. Camlock (electrical) A camlock, or also cam lock and Cam-Lok, is an interchangeable single-pole electrical connector often used in temporary electrical power production and distribution predominantly used in the North America. Originally a trade name as Cam-Lok, it is now a generic term. The most common form is the "16" series, rated at 400 amperes with 105 °C terminations. Also in common use is the "15" series ("mini-cam"), rated at 150 amperes. A larger version is made denoted as the