Okla. Stat. tit. 63 § 981
No person, firm, corporation or association shall, individually or through an agent or employee and no person as an agent or employee of any person, firm, corporation or association, shall perform or permit any agent or employee to perform any function or activity upon any land, building, highway, or other premises, when it is possible during the performance of such activity for any person or employee engaged in performing work connected with or related to such function or activity to move to or to be placed in a position within six feet of any high voltage overhead electrical line or conductor, or when it is possible for any part of any tool, equipment, machinery or material to be used by any such person or employee to be brought within six (6) feet of any such overhead high voltage line or conductor through any lateral, vertical or swinging motion during the performance of such function or activity.
Okla. Stat. tit. 63, § 981