685-Integrated Electrical Systems
Table 685.3 Application of Other Articles
I. General
685.1 Scope. This article covers integrated electrical systems, other than unit equipment, in which orderly shutdown is necessary to ensure safe operation. An integrated electrical system as used in this article is a unitized segment of an industrial wiring system where all of the following conditions are met:
(1) An orderly shutdown is required to minimize personnel hazard and equipment damage.