| Title | By | Posted On |
| Strained strain relief? |
jlowell |
9/1/2011 |
| During a recent survey I was looking at some overhead feeders going into a building. I noticed a "hot spot" on one of the four strain relief cables supporting the feeders. The one on the left which is in full sun is showing a lower temperature than the far right one, which is in partial shade. The grounding jumper going between the cables is not showing any of this temperature rise so I ruled it out. So my question is, could the strain on the cable be causing it to show the higher temperature? |
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| Re:Strained strain relief? |
TOEKNEE |
9/23/2011 |
| did you take the picture @ 1:30 pm? and there was a solar heating on the wire from 10:00 am to 1:30 pm? |
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| Re:Strained strain relief? |
jlowell |
9/26/2011 |
| The image was taken around 10:00 am. Before any solar loading could have occured due to it still being in the shade. |
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| Re:Strained strain relief? |
Andry |
10/4/2011 |
In my humble opinion, I don't think the strain on the cable causing it to show higher temperature.
Have you ever physically check the cable itself? (if it's possible, since I don't know how high the cable above the ground) |
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| Re:Strained strain relief? |
jvoitl |
10/4/2011 |
| Possibly a case of induction causing an electrical current in the cable. Have an electrician check it out. |
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