B. Three-phase, 120-volt lighting (and small appliances). Both A and B loads may be carried into the building on the same four-wire service. This is economical for large buildings. C. Lighting and appliances on a 120- 240-volt system from aanbsp;...
|Title||:||Adequate wiring for home and farm|
|Author||:||Elmer W. Jones, John Leslie Johnston|