30 CFR § 75.705-2
Repairs to energized surface high-voltage lines.
An energized high-voltage surface line may be repaired only when
(a) The operator has determined that:
(a)(1) Such repairs cannot be scheduled during a period when
the power circuit could be properly deenergized and grounded;
(a)(2) Such repairs will be performed on power circuits with
a phase-to-phase nominal voltage no greater than 15,000 volts;
(a)(3) Such repairs on circuits with a phase-to-phase nominal
voltage of 5,000 volts or more will be performed only with the use of live
line tools;
(a)(4) Weather conditions will not interfere with such
repairs or expose those persons assigned to such work to an imminent danger;
and
(b) The operator has designated a person qualified under the
provisions of §75.154 as the person responsible for
carrying out such repairs and such person, in order to ensure protection for
himself and other qualified persons assigned to perform such repairs from
the hazards of such repair, has prepared and filed with the operator:
(b)(1) A general description of the nature and location of
the damage or defect to be repaired;
(b)(2) The general plan to be followed in making such
repairs;
(b)(3) A statement that a briefing of all qualified persons
assigned to make such repairs was conducted informing them of the general
plan, their individual assignments, and the dangers inherent in such
assignments;
(b)(4) A list of the proper protective equipment and clothing
that will be provided; and
(b)(5) Such other information as the person designated by the
operator feels necessary to describe properly the means or methods to be
employed in such repairs.