Except as provided in paragraph (l)(2)(ii) of this section, at least two employees shall be present while any employees perform the following types of work:
Installation, removal, or repair of lines energized at more than 600 volts,
Installation, removal, or repair of deenergized lines if an employee is exposed to contact with other parts energized at more than 600 volts,
Installation, removal, or repair of equipment, such as transformers, capacitors, and regulators, if an employee is exposed to contact with parts energized at more than 600 volts,
Work involving the use of mechanical equipment, other than insulated aerial lifts, near parts energized at more than 600 volts, and
Other work that exposes an employee to electrical hazards greater than, or equal to, the electrical hazards posed by operations listed specifically in paragraphs (l)(2)(i)(A) through (l)(2)(i)(D) of this section.
Paragraph (l)(2)(i) of this section does not apply to the following operations:
Routine circuit switching, when the employer can demonstrate that conditions at the site allow safe performance of this work,
Work performed with live-line tools when the position of the employee is such that he or she is neither within reach of, nor otherwise exposed to contact with, energized parts, and
Emergency repairs to the extent necessary to safeguard the general public.