Okla. Stat. tit. 63, § 63-985: Definitions

For the purpose of this act: (a) "high voltage" shall mean a

voltage in excess of seven hundred fifty (750) volts between

conductors, or between any single conductor and the ground; (b)

"overhead lines or overhead conductors" shall mean all bare or

insulated electrical conductors installed above ground excepting

those conductors that are deenergized and grounded or that are

enclosed in iron pipe or other metal covering of equal strength.