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i <br />' INFerANNORC <br /> The GFCI is a fast-acting circuit breaker that senses small imbalances in the circuit <br /> caused by current leakage to ground, and in a fraction of a second, shuts off the electricity <br />' However, the GFCI will not protect the employee from hne-to-line contact hazards such as a <br /> person holding two "hot" woes or a hot and neutral wire in each hand The GFCI does <br />' provide protection against the most common form of electrical hazard - the ground fault It <br /> also provides protection against fires, overheating, and destruction of wire insulation <br />' be used successful) to reduce electrical hazards on construction sites <br /> GFCI s can y <br /> Tnppmg of GFCI's interruption of current flow is sometimes caused by wet connectors and <br /> tools It is good practice to limit exposure of connectors and tools to excessive moisture by <br /> using watertight or sealable connectors Providing more GFCI's on shorter circuits can <br /> prevent tripping caused by the cumulative leakage from several tools or by leakages from <br />' extremely long circuits (Adapted from OSHA 3007, Ground-Faulting Protection on <br /> Construction Sites - 1987) <br /> 10 5.8 Fin' Protection <br />' Only approved metal cans will be used to transport and store flammable liquids <br /> All gasoline and diesel-driven engines requiring refueling must be shut down and <br />' allowed to cool before filling <br /> Smoking is not allowed dunng any operations within the work area in which <br />' petroleum products or solvents in free-floating, dissolved or vapor forms, or other flammable <br />' liquids may be present <br /> No open flame or spark is allowed it any area containing petroleum products or other <br />' flammable liquids <br /> 17 <br />