McGraw-Hill's handbook of electrical construction calculations

Abstract

Procedures: basic calculations wiring methods branch circuits feeders services transformer circuits voltage drop lighting motor circuits electric heating sample calculations sizing branch-circuit conductors branch-circuit calculations makeup of feeder circuit feeder sizing neutral size in 3-phase feeders sizing parallel feeder sizing components for 3-wire, single-phase circuits currents in 3-phase circuits calculating branch-circuit and feeder components selecting feeder protection sizing grounding and bonding conductors underground service calculations size of nipples conduit fill for mixed wire sizes calculating size of pull-boxes number of wires in wireway protecting 2-wire transformer circuit transformer secondary feeder a typical transformer circuit a puzzler on wireway fill range circuits motor circuit calculations circuit for a wounded-rotor motor calculations for a motor feeder protecting motor starter coil circuit protecting contactor oil circuit.