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 is worthwhile to note that the People's Republic of China accepted that discriminatory safeguards may be imposed on its exports to other WTO members until 2013. Regional trading arrangements have their own rules relating to safeguards. Some safeguard measures can be resorted to in the area of services, as provided for in the General Agreement on Trade in Services (GATS). Safeguard A safeguard, in international law, is a restraint on international trade or economic development to protect communities from development aggression or home industries from foreign competition. In the World Trade Organization (WTO), a member may take a safeguard action,