Switchboards and Power Panels

Section 205 Section 205.1720  Switchboards and Power Panels Circuit breakers or fusible switches that provide disconnecting means and overcurrent protection for conductors connected to switchboards and panelboards shall be enclosed or guarded to provide a dead-front type of assembly. a)         The main switchboard shall be located in a separate enclosure accessible only to authorized persons. b)         The switchboards shall be convenient for use, readily accessible for maintenance, clear of traffic lanes, and in a dry ventilated space free of corrosive fumes or gases. c)         Overload protective devices shall be suitable for operating properly in the ambient temperature conditions.