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
USS Safeguard (ARS-25) Mare Island, California. After service in the Aleutians in the spring of 1947, "Safeguard" arrived at Pearl Harbor on 1 July. She then went on to Kwajalein Atoll, the Marshalls, for salvage operations after the nuclear tests held there. The mission involved considerable diving and the inspection of the underwater surfaces of many grounded vessels. "Safeguard" departed Kwajalein on 12 November and headed via Pearl Harbor for San Diego. She decommissioned on 12 December 1947 and entered the San Diego Group of the Pacific Reserve Fleet. After the outbreak of war in Korea, "Safeguard" was ordered activated. Recommissioned on 13