UL Standard for Safety Low-Voltage Switchgear and Controlgear - Part 1: General Rules (First Edition; Reprint with Revisions Through and Including October 22@ 2004)
This standard applies@ when required by the relevant product standard@ to switchgear and controlgear hereinafter referred to as "equipment" and intended to be connected to circuits@ the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.It does not apply to low-voltage switchgear and controlgear assemblies which are dealt with in IEC 60439. NOTE ?C In certain clauses or subclauses of this standard@ the equipment covered by this standard is also referred to as "device"@ to be consistent with the text of such clauses or subclauses. The object of this standard is to state those general rules and requirements which are common to low-voltage equipment as defined in 1.1@ including for example:??C definitions;??C characteristics;??C information supplied with the equipment;??C normal service@ mounting and transport conditions;??C constructional and performance requirements;??C verification of characteristics and performance.