The U. Improving the safety of electrical installations through participation in the NEC revision process is one of the strategies CPSC staff employs to reduce potential electrical fire and shock hazards. During the period , there was an estimated annual average of more than 28, fires attributed to home electrical distribution systems. Electrocutions associated with consumer products have decreased from in to in The link you selected is for a destination outside of the Federal Government.
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Generator, feeder, and bus-tie cables must be selected on the basis of a computed load of not less than the demand load given in Table Please help us improve our site! No thank you. Shipping Chapter I. Wiring Materials and Methods Section Demand loads. CFR prev next. Table Type of circuit Demand load Generator cables percent of continuous generator rating. Switchboard bus-tie, except ship's service to emergency switchboard bus-tie 75 percent of generating capacity of the larger switchboard.
Emergency switchboard bus-tie percent of continuous rating of emergency generator. Galley equipment feeder percent of either the first 50 KW or one-half the connected load, whichever is the larger, plus 65 percent of the remaining connected load, plus 50 percent of the rating of the spare switches or circuit breakers on the distribution panel.
Lighting feeder percent of the connected load plus the average active circuit load for the spare switches or circuit breakers on the distribution panels.
Grounded neutral of a dual voltage feeder percent of the capacity of the ungrounded conductors when grounded neutral is not protected by a circuit breaker overcurrent trip, or not less than 50 percent of the capacity of the ungrounded conductors when the grounded neutral is protected by a circuit breaker overcurrent trip or overcurrent alarm.
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