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
Thou shalt not take the name of the Lord thy God in vain referred to this as "motzi shem shamayim lavatalah", "uttering the Name of Heaven uselessly." To avoid guilt associated with accidentally breaking the commandment, Jewish scholars applied the prohibition to all seven biblical titles of God in addition to the proper name, and established the safeguard of circumlocution when referring to the Name of God. In writing names of God, a common practice includes substituting letters or syllables so that the written word is not exactly the name, or writing the name in an abbreviated manner. Orthodox Jews will not even pronounce a name of God unless it is said in