000670-000000-0000001 Scope
1.1 These requirements cover panelboards to be employed in accordance with NFPA 70®, National Electrical Code® (NEC®). Panelboards, as covered by these requirements, are intended to provide the primary function of control and protection of electrical circuits.
NOTE: NFPA 70®, National Electrical Code®, and NEC® are registered trademarks of the National Fire Protection Association, Quincy, MA.
1.2 These requirements do not cover:
a) Distribution equipment which sole function is the automatic or nonautomatic transferring of one or more load conductor connections from one power source to another, as covered in the Standard for Transfer Switch Equipment, UL 1008.
b) Factory wired assemblies of industrial control equipment intended to control industrial processes, as covered in the Standard for Industrial Control Panels, UL 508A.
c) Distribution equipment containing only one circuit subdivision, unless also provided with a meter socket, as covered in the Standard for Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures, UL 489. See 1.
d) Distribution equipment intended to serve as a means for distributing power required to operate mobile or temporarily installed equipment, as covered in the Standard for Power Outlets, UL 231.
e) Factory wired assemblies of controllers, timers, temperature regulating equipment and such, intended for control of equipment for use with swimming pools, hot tubs, and/or spas, as covered in the Standard for Electric Spas, Equipment Assemblies, and Associated Equipment, UL 1563.
f) Factory wired assemblies intended for the control of Architectural and Floating Fountains, as covered in the Standard for Moter-Operated Water Pumps, UL 778, the Standard for Underwater Luminaires and Submersible Junction Boxes, UL 676, and the Standard for Industrial Control Panels, UL 508A.
g) Portable power distribution equipment as covered in the Standard for Portable Power-Distribution Equipment, UL 1640.
h) Panelboards with converter and/or inverter functions, intended for use as distribution equipment in recreational vehicles, as covered in the Standard for Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts, UL 458.