Only electrical equipment that is approved by MSHA under the applicable requirements of 30 CFR parts 18 through 29, shall be used underground, except for submersible sump pumps.
053-3 Wyo. Code R. § 57.22303
Only electrical equipment that is approved by MSHA under the applicable requirements of 30 CFR parts 18 through 29, shall be used underground, except for submersible sump pumps.
053-3 Wyo. Code R. § 57.22303