Back to back minerallacs for vertical EMT conduits?

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ElectricNewEngland

Member
Location
New Hampshire
I have a bank of 8 exposed vertical EMT conduits (situated 4 wide by 2 deep) coming out of the top of a panelboard and running vertically 15feet to the roof above. The 4 conduits closest to the wall are supported by steel strut secured to the wall. What is the correct way of supporting the other 4 conduits that are not against the wall? I want to use back-to-back minerallacs having those conduits attach to the conduits that are attached to the wall. Does doing so meet NEC 300.11(C) Raceways Used as a Means of Support?
 
Coppersmith

Coppersmith

Senior Member
Location
Tampa, FL, USA
Occupation
Electrical Contractor
It would be a violation to use back-to-back minerallacs because then the conduit would be supporting other conduit. You can add a piece of thin strut in front of the first row of conduit and fasten this strut to the wall with some all-thread and anchors. Then support the second row of conduit with this strut.
 
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