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View Full Version : What is the melting temperature of the sheathing for domestic service entrance cable?


pbdugan
Nov 14, 2015, 12:20 PM
I do understand that the cable sheathing does not support combustion. I am trying to determine at what temperature it will melt by fire impingement. Thank You.

ma0641
Nov 14, 2015, 06:34 PM
If there is direct impingement, the melting point is irrelevant. A campfire is typically 1500*F.
Vicat temp for PVC, the softening point, and realize there are many different blends, runs about 190*F. We used PVC and CPVC coatings in a number of different circumstances. PVC (vinyl) siding is notorious for melting at fairly low temps.