I have a dumb question regarding putting UF and NM inside a raceway.
Last week one of our well diggers was having a tough time with his trench caving in on him, so he was trying to be a nice guy and assembled the RNC as he was back-hoeing in the water lines. The problem that came up was that he put UF inside it and he did not use expansion joints below the RB panel or the well-head, never mind that he is not a licensed electrician.
I will find out this week, but the boss was saying that we have to remove the UF and install THHN.
Where is it stated that UF can't be inside a raceway the entire length of the wire, which in this case was 40'?
Along the same lines, when I am wiring up a garage in NM and the customer wants an outlet on the exposed side of a pillar, for example 3' down, I put the NM inside EMT with either a EMT-Romex connector at the top or a white plastic insulator. At what point do I have to derate the NM? 334 says that it can be placed inside a raceway to go between floors, but it does not indicate what is the length where you have to derate.
Finally, while installing a new service with a RNC sleeve (18-24" long) above the service entrance, should the NM have the jackets removed or not? I know that I am not allowed to fill the sleeve greater than 60% area, but I have always left the jackets intact until they enter the panel. What section of the NEC tells you to leave the jacket intact or remove it inside the sleeve?
Thanks,
Rick
Last week one of our well diggers was having a tough time with his trench caving in on him, so he was trying to be a nice guy and assembled the RNC as he was back-hoeing in the water lines. The problem that came up was that he put UF inside it and he did not use expansion joints below the RB panel or the well-head, never mind that he is not a licensed electrician.
I will find out this week, but the boss was saying that we have to remove the UF and install THHN.
Where is it stated that UF can't be inside a raceway the entire length of the wire, which in this case was 40'?
Along the same lines, when I am wiring up a garage in NM and the customer wants an outlet on the exposed side of a pillar, for example 3' down, I put the NM inside EMT with either a EMT-Romex connector at the top or a white plastic insulator. At what point do I have to derate the NM? 334 says that it can be placed inside a raceway to go between floors, but it does not indicate what is the length where you have to derate.
Finally, while installing a new service with a RNC sleeve (18-24" long) above the service entrance, should the NM have the jackets removed or not? I know that I am not allowed to fill the sleeve greater than 60% area, but I have always left the jackets intact until they enter the panel. What section of the NEC tells you to leave the jacket intact or remove it inside the sleeve?
Thanks,
Rick