33kv Conductor Spacing

[shooter1]

I'm looking for information regarding 11kv/33kv conductor spacing, phase to phase, phase to grounded conductor and phase to grounding conductor. Any information would be greatly appreciated. I'm trying to verify that we don't have a flash potential on a new installation.

 

[mkgrady]

I'm looking for information regarding 11kv/33kv conductor spacing, phase to phase, phase to grounded conductor and phase to grounding conductor. Any information would be greatly appreciated. I'm trying to verify that we don't have a flash potential on a new installation.

At what popint in the distribution system are you talking about?

Tell us more about the situation. Are you talking about insulated and shielded cables running on manhole cable racks or bare cables running down an overhead power line? I assume it's something in between but you will have to describe the situation before you can get much help.

 

[quogueelectric]

This is not exactly what you are looking for this is aproach distances all I could find for now I will look more later. Saturday, April 19, 2008
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.