§ 1926.966 Substations.
(a) Application. This section provides additional requirements for substations and for work performed in them.
(b) Access and working space. The employer shall provide and maintain sufficient access and working space about electric equipment to permit ready and safe operation and maintenance of such equipment by employees.
Note to paragraph (b):
American National Standard National Electrical Safety Code, ANSI/IEEE C2–2012 contains guidelines for the dimensions of access and working space about electric equipment in substations. Installations meeting the ANSI provisions comply with paragraph (b) of this section. The Occupational Safety and Health Administration will determine whether an installation that does not conform to this ANSI standard complies with paragraph (b) of this section based on the following criteria:
(1) Whether the installation conforms to the edition of ANSI C2 that was in effect when the installation was made;
(2) Whether the configuration of the installation enables employees to maintain the minimum approach distances, established by the employer under § 1926.960(c)(1)(i), while the employees are working on exposed, energized parts; and
(3) Whether the precautions taken when employees perform work on the installation provide protection equivalent to the protection provided by access and working space meeting ANSI/IEEE C2–2012.