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
Safeguard Coaches it is "inflexible" and that "people don’t know days in advance when they will want to go somewhere and when they want to be picked up". Campaigners also reject the idea that there are commercial bus services that provide a replacement, as around half the route is on roads unserved by other buses. From January 2009, Safeguard reintroduced the service commercially, but it was withdrawn for a final time in May 2010. Safeguard currently operate two circular bus routes, routes 4 and 5 which run in opposite directions, linking Park Barn with Guildford town centre. From 24 July 2010, Safeguard