Trapeze work combining existing runs with new

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Fordean

Senior Member
Location
New Jersey
Occupation
Electrical Contractor
Need to Run 200 feet down a hall way. But with drop ceiling at 8 feet and deck of roof 20ft. Cant get up to install anchoring without removing ceiling.

Their is existing cabletray. With 3/8 rod. Can easily install a 15 inch piece of unistrut to support the 4 - 1 in conduits. Is their any restriction I may not be aware of in doing this. Besides House rules (owner if rejects) not letting you.
 
If you are planning to hang off the threaded rod, the weight allowance for the rod and the anchors will determine if you can add additional weight.

If you are planning to hang off the tray it self, then the combination of the above and the type of tray will be the factor. See 392.18(G). This section applies to industrial areas.
 
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