- (1) Electrical equipment and wiring for use in anhydrous ammonia installations shall be either general purpose or weather resistant as appropriate.
- (2) Where concentrations of ammonia in air in excess of 16 percent by volume are likely to be encountered, electrical equipment and wiring shall be of a type specified by and installed in accordance with National Electrical Code (National Fire Prevention Association 70, ANSI-C1) for Class 1, Group D locations.
Authorizing statute(s): Sec. 80-10-503, MCA
Implementing statute(s): . 80-10-503, MCA
History: NEW, 1986 MAR p. 1820, Eff. 10/31/86.