This fully-illustrated guide offers a quick and easy visual reference for installing electrical systems. Whether you're installing a new system or repairing an old one, you'll appreciate the simple explanations written by a code expert, and the detailed, intricately-drawn and labeled diagrams. A real time-saver when it comes to deciphering the current NEC.A B C N a b c N X2 X, X, 3-phase 4-wire wye (Y) Primary X, 3-phase 4-wire 208Y/ 120V for light and power Figure 10-15: Three-phase, four-wire, Y-Y connected transformer system c b N a H, H, / I c 3-phase 3-wire delta Primary -iO.O.O.-r-1 X, anbsp;...
|Title||:||Illustrated Guide to the 1999 National Electrical Code|
|Author||:||John E. Traister, Bradford Maher|
|Publisher||:||Craftsman Book Company - 1999|