(a) Electrically operated machinery approved under the provisions of
this Subpart E shall be rugged in construction and shall be designed to
facilitate maintenance and inspection.
(b) MSHA shall conduct field investigations and, where necessary,
field test electric machinery only where such machinery is found to be
constructed of suitable materials and safe for its intended use.
U.S. Department of Labor | Mine Safety and Health Administration (MSHA) | 1100 Wilson Boulevard, 21st Floor | Arlington, VA 22209-3939 www.msha.gov | Telephone: (202) 693-9400 | Fax-on-demand: (202) 693-9401