You can no longer post new replies to this discussion. If you have a question you can start a new discussion
70C PVC thermoplastic data in BS 7671 instead of Acutal 90C XLPE thermosetting cable
Former Community Member
if I am designing a circuit where, due to installation conditions, I was required to use 90C XLPE thermosetting cable. The cable is de rated to 70C as it will be bunched with other circuits on a cable tray and then buried in duct in another part of the run. My question is, if I am derating the XLPE to 70C, do I use the data given for 70C PVC thermoplastic cables in the absence of manufacturers data? like treating the XLPE as same as the PVC cable ??
Hello, you will get more responses if you post your question on the I.E.T's B.S. 7671 wiring and regulations section. (But don't tell the mods, as they will get cross, they are like that!)
