Alternating Current – Minimum Approach Distance

The following table is from Occupational Safety & Health Standards Board of the California Cal/OSHA program website. http://www.dir.ca.gov/oshsb/rubberglove.html Please see this website for more information.

It is related to conductors and equipment energized over 7,500 volts

Alternating Current – Minimum Approach Distance

Normal Voltage Range (Phase to Phase)Kilovolt	Approach Distance Phase to Ground Exposure
Above 0.6 to 15	2 ft 1 in.
Above 15 to 36	2 ft. 4 in.
Above 36 to 46	2 ft 7 in.
Above 46 to 72.5	3 ft 0 in.
Above 72.5 to 121	3 ft 4 in.
Above 121 to 145	3 ft 7 in.
Above 145 to 169	4 ft 0 in.
Above 169 to 242	5 ft. 3 in.
Above 242 to 362	8 ft 6 in.
Above 362 to 552	11 ft. 3in.
Above 552 to 765	15 ft 0 in.