scope:

Applications and Products Included

This standard describes the installation and maintenance procedures for feeder and plug-in busways and accessories rated 600 Volts AC or less, and 100 amperes or more. It also covers periodic routine maintenance procedures for busway, and special procedures used after adverse operating conditions such as short-circuit, ground-fault, or immersion in water.

Applications and Products Excluded

This publication does not cover lighting busway, trolley busway, cable-bus, or medium-voltage or metalenclosed busway.

Regulatory and Other Requirements

All information in this publication is intended to conform to the National Electrical Code®

(ANSI/NFPA Standard 70). Installers should always follow the NEC®, applicable Federal, state and local electrical codes, OSHA safety regulations, and manufacturer's installation instructions when installing and maintaining busways.

Only qualified persons familiar with the construction and operation of busways should perform the installations described in this publication. The term"qualified person" is defined in Article 100 of the NEC. Administrative functions and tasks such as receiving, handling and storing, required in Section 4 and other tasks can be performed under the supervision of a qualified person.

Other National Electrical Installation Standards™ provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS™ is provided in Annex A.