
General Instructions For Proper Installation, Operation And Maintenance Of Panelboards Rated 600 Volts Or Less
出版:National Electrical Manufacturers Association

專家解讀視頻
Defines single panelboards or groups of panel units suitable for assembly in the form of single panelboards, including buses, and with or without switches or automatic overload protective devices (fuses or circuit breakers) or both.
1996 version is still active.
(06/2004)
Also available in Spanish language.
(04/2006)