ron Senior Member Location New York, 40.7514,-73.9925 Feb 25, 2019 #1 If steel channel can adequately support the weight, and the FMC is secured per 348.30 to the channel, can multiple FMC raceway be stacked in a pile?
If steel channel can adequately support the weight, and the FMC is secured per 348.30 to the channel, can multiple FMC raceway be stacked in a pile?
ActionDave Chief Moderator Staff member Location Durango, CO, 10 h 20 min from the winged horses. Occupation Licensed Electrician Feb 25, 2019 #2 I don't see why not. It wouldn't be much different than piling up a bunch of MC.
LarryFine Master Electrician Electric Contractor Richmond VA Location Henrico County, VA Occupation Electrical Contractor Feb 25, 2019 #3 Derating applies.
ron Senior Member Location New York, 40.7514,-73.9925 Feb 25, 2019 #4 LarryFine said: Derating applies. Click to expand... What amount of derating? 310.15(B)(3)(b) says to maintain spacing between raceway, but what if it isn't maintained? ActionDave said: I don't see why not. It wouldn't be much different than piling up a bunch of MC. Click to expand... 310.15(B)(3)(a)(4) says I can bundle AC and MC as long as I have #12's, etc.
LarryFine said: Derating applies. Click to expand... What amount of derating? 310.15(B)(3)(b) says to maintain spacing between raceway, but what if it isn't maintained? ActionDave said: I don't see why not. It wouldn't be much different than piling up a bunch of MC. Click to expand... 310.15(B)(3)(a)(4) says I can bundle AC and MC as long as I have #12's, etc.