Physical damage meaning

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jeramiepluemer

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Wisconsin
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Electrician
I install flex pipe on generator then schedule 40 pvc to t switch then to main panel. I am talking about either mount under joist or along wall. Someone is telling me all pvc pipe not buried or inside a wall needs to be in schedule 80 because anything visible is subject to physical damage. Is this true?
 
So there is not example of what subject to physical damage is. Like a vertical pvc sch 40 conduit running up a wall with LB going into house under a 3 season room. Why would anyone in there right mind say that this is subject to physical damage. What is someone coming over with a chain saw and cutting it. Crazy
 
jeramiepluemer said:
So there is not example of what subject to physical damage is. Like a vertical pvc sch 40 conduit running up a wall with LB going into house under a 3 season room. Why would anyone in there right mind say that this is subject to physical damage. What is someone coming over with a chain saw and cutting it. Crazy
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But, on the other hand, flat to a wall along a driveway, anywhere tire level or below is IMHO subject to damage. If it sticks out from the wall, not doubt about it.
 
Sea Nile said:
Im starting my journey at 48.
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GoldDigger said:
But, on the other hand, flat to a wall along a driveway, anywhere tire level or below is IMHO subject to damage. If it sticks out from the wall, not doubt about it.
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What about the wire inside the wall when the car smashes into it. Some homes only having insulation. I guess I am confused. Safe or unsafe. Isn't that why we become electrician . Realistic problems. Someone smashing schedule 40 or the joints dry rotting. It would never end the problems that could happen. Sorry confused
 
The person who said Schedule 80 may be thinking of a service?

What section of the NEC are you looking in for what you think it should be?
 

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It's the UL Listing -

Excerpt:
"Low Temperature Limit Schedule 40 does not have a lower temperature limitation since it is not allowed to be used in areas where subject to physical damage. (NEC 352.10(F)). When Schedule 40 PVC is exposed to very low temperatures it will become more brittle. This is only a problem when it gets impacted. Schedule 80 PVC Conduit is listed for uses in areas of physical damage and has been used in impact areas of low temperatures throughout the years without a problem. We always recommend erring on the side of safety. If you believe that low temperatures and areas of impact are going to be a problem use a metal conduit."
 
Ok then why can you run SER cable outside of home then into structure to main panel without protection. I have seen many people do this with generator t switches
 
jeramiepluemer said:
Ok then why can you run SER cable outside of home then into structure to main panel without protection. I have seen many people do this with generator t switches
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Because you can run SE/SER and Sched 40 in the same locations.

Around a home, the driveway side is the only real danger zone.
 
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