McGraw-Hill's handbook of electrical construction calculations
The one and only collection of electrical construction calculations needed for on-the-job problem solving. The calculations are organizedin two ways: (1) Equipment types, including lighting, heating, motors, appliances, ventilation and air conditioning; and (2) Electrical systems, including branch circuits, feeders, motor circuits, transformer circuits, services, overcurrent protection and conductor sizes. Index. 80 illustrations.
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Lighting and Appliance Branch Circuits
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125 percent 3-phase aluminum ampere amps appliance applied autotransformer bonding jumper branch circuit branch-circuit protection busbar cable calculated capacitance capacitor capacity CB or fused circuit breaker circuit conductors Code conductor ampacity conductor material conduit connected continuous load copper conductors cuit current rating demand factor demand load derating determined ductors electric enclosure equal equipment grounding conductor feeder conductors feeder protection full-load current fuse or CB fused switch grounding electrode conductor heating horsepower hot leg inductance installed insulation kcmil lighting load load current maximum minimum motor load NEC Sec Note operating overcurrent device overcurrent protection panel panelboard parallel circuit permitted phase leg power factor protective device raceway rating or setting reactance receptacle outlets resistance rule of Sec Section service conductors service-entrance conductors shown in Fig sized supply switchboard tap conductors temperature terminals THHN total load ungrounded voltage drop wires XHHW