Vocational a TradeIsolation of a portable generator used for optional standby from utility sources may be provided by means other than transfer switches where only qualified persons service the installation. The precise nature of the loads supplied by emergencyanbsp;...
|Title||:||Electrical Inspection Manual with Checklists|
|Author||:||Jeffrey S. Sargent, Noel Williams|
|Publisher||:||Jones & Bartlett Learning - 2006-04-24|