Part I: Intro and Preparation

Difference between transformers; characteristics; single and three phase. Different types of phase and wiring systems; what they look like. Electrical symbols: 1017. Electrical conduit and wire types: 897, 909-913, 1023 Single line diagrams: 1039. Circuits: parallel and series; basic circuits into building (3 phase, etc.): 855, 856 ................
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