100' light pole wire

[knickelj]

I have 2 100' and 2 90' light poles. Each have 16 1500w MH fixtures. Three 30A 480v circuits feed each pole. There is a 7 conductor type??? cable run up each pole. The problem I have is due to the sway of the poles the cable and wirenuts at the base of the pole have rubbed through and short out. I have "repaired" any visual abrasion with multiple layers of 88 but would like to replace the wire up the pole. Has anyone found a reliable insulation type against abrasion for use inside a light pole? Also any suggestions on splicing?

 

[480sparky]

...........Also any suggestions on splicing?

Wrap the splices with mastic tape.

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[wireguru]

whats in there now, SO cable? Tray Cable?

 

[knickelj]

Not to sure, as the outside coating is old, full of bird crap, and rubbed to the point where you can't read it.

 

[knickelj]

Wrap the splices with mastic tape.

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Think the mastic will protect it from rubbing against the side of the pole? I would just use the gel filled wire nuts for moisture. I?m more concerned about rubbing through.

 

[TNGuy81]

THHN or THWN should be fine. Spice with split bolts and supper88/rubber tape

 

[don_resqcapt19]

I have worked on a couple of these poles that used a device to apply a small amount of tension to the cable to limit the movement. These did not splice, but used a twist lock cord cap. To work on the fixture head, you removed the tension device, unplugged the cable and plugged the lowering device into the receptacle.

 

[LEO2854]

Wrap the splices with mastic tape.

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Think the mastic will protect it from rubbing against the side of the pole? I would just use the gel filled wire nuts for moisture. I?m more concerned about rubbing through.

Wrap it with the mastic tape it will last for ever:grin: