Electrical wiring in the United Kingdom lawnmower does it need an RCD?" The risk of electrical shock on construction sites can be reduced by several measures, including reduction of the normal 230 volt distribution voltage to 110 volts for electrical lighting and power tools. By using a centre-tapped transformer, each conductor of the circuit is only at 55 volts with respect to earth. This reduces the chance of dangerous electrical shock when using power tools in wet locations. Where 230 volts must be used, a residual current device (RCD) can be used to detect small leakage currents and automatically isolate faulty equipment. In sites where hazardous
USS Safeguard (ARS-25) March 1966, "Safeguard" commenced upkeep and mid-Pacific operations. For example, during September and October 1966, she salvaged a 10,000-ton commercial barge which had grounded at Wake Island during a storm. She then towed the barge 2,000 miles to Honolulu. Into 1974, "Safeguard" has continued to provide Fleet support services from her home port of Pearl Harbor and through her regular WestPac deployments. "Safeguard" was decommissioned (date unknown) and struck from the Naval Vessel Register, 6 August 1979. She was transferred under the Security Assistance Program, to Turkey, 28 September 1979. She was decommissioned 30 March 2017. "Safeguard" received one battle