Okla. Stat. tit. 45, § 45-522: Electric wires to be insulated

In all mines where electricity is, used as a part of the system,

power or means of mining and procuring the coal or other mineral

therefrom, the owners, or operators thereof shall cause all wires

conducting electricity in and about said mines, to be carefully and

thoroughly insulated or protected in a safe manner, so that the

persons or animals coming in contact therewith, shall not be

injured; all wires as aforesaid shall either be thoroughly insulated

or placed where persons employed in or about the mines cannot come

in contact therewith, or shall be covered, protected or shielded in

a safe manner so as to prevent any injuries or accidents therefrom

to those in or about the mines.