Fire risk with Thin Wall versus standard PVC cable?
Posted: Mon Jul 27, 2015 8:51 pm
Good day all.
I hope someone can update my knowledge.
Up till now i have used the PVC covered wire the we all grew up with.
This is now hard to get and often the tracer colour is just painted on.
I have moved on to thin wall wire for the job I am now working on.
This claims a higher current rating then the old stuff.
The insulation is rated at 105 degrees C, the old stuff 70 degrees C.
The old 28 strand 0.3 cable is rated at 17 Amps, the same in thin wall at 25 Amps.
Am I correct in thinking the only thing that has changed is the wiring is allowed to run hotter?
This would be OK if the whole system is changed, but could be a very fine fire lighter if mixed with the old stuff?
In fact this may have been the start of otherwise un-explained fires.
Can some expert on this tell me if I am correct?
Jon the Chief
I hope someone can update my knowledge.
Up till now i have used the PVC covered wire the we all grew up with.
This is now hard to get and often the tracer colour is just painted on.
I have moved on to thin wall wire for the job I am now working on.
This claims a higher current rating then the old stuff.
The insulation is rated at 105 degrees C, the old stuff 70 degrees C.
The old 28 strand 0.3 cable is rated at 17 Amps, the same in thin wall at 25 Amps.
Am I correct in thinking the only thing that has changed is the wiring is allowed to run hotter?
This would be OK if the whole system is changed, but could be a very fine fire lighter if mixed with the old stuff?
In fact this may have been the start of otherwise un-explained fires.
Can some expert on this tell me if I am correct?
Jon the Chief