Cable Trays Installed Vertical In A Different Manner
Cable Trays Installed Vertical In A Different Manner
(OP)
This may sound dumb, but it happens when somebody non-electrical plays electrical.
We have been routing our cable trays horizontally along the conveyors as per code and standard requirements. The cable trays are ran along the side of the conveyor platforms.
However, the general manager is presently commenting on them and insisting to run the trays along the sides of the conveyor platforms in a vertical position instead of horizontal. I informed the person that running the trays vertically sideways is not logical on our application and it will require special fastening requirements on both cable trays and cables. I also added that it will be difficult to structurally support them.
Is there anybody here who can give me a hand on educating this "hot-shot" fellow technically in case I missed some important points in my explanations.
Thanks.
We have been routing our cable trays horizontally along the conveyors as per code and standard requirements. The cable trays are ran along the side of the conveyor platforms.
However, the general manager is presently commenting on them and insisting to run the trays along the sides of the conveyor platforms in a vertical position instead of horizontal. I informed the person that running the trays vertically sideways is not logical on our application and it will require special fastening requirements on both cable trays and cables. I also added that it will be difficult to structurally support them.
Is there anybody here who can give me a hand on educating this "hot-shot" fellow technically in case I missed some important points in my explanations.
Thanks.






RE: Cable Trays Installed Vertical In A Different Manner
Mike Halloran
Pembroke Pines, FL, USA
RE: Cable Trays Installed Vertical In A Different Manner
EEJaime
RE: Cable Trays Installed Vertical In A Different Manner
Any additional comments are highly appreciated.
RE: Cable Trays Installed Vertical In A Different Manner
Bill
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"Why not the best?"
Jimmy Carter
RE: Cable Trays Installed Vertical In A Different Manner
RE: Cable Trays Installed Vertical In A Different Manner
For all the effort that will be required to install cables in such a configuration, it would be easier and prettier to put in racks of conduit. I honestly don't see a hazard to his idea, but I do see a ton of wasted money in labor.
-John
RE: Cable Trays Installed Vertical In A Different Manner
1. More de-rating of cables should be applied due to deeper stacking of cables of different circuits.
2. Bigger size of cables for the same load and length due to lower ampacity de-rating factors.
3. More installation costs due to specific and durable cable fasteners required to keep the cables in place, specially large power cables.
4. Higher labor costs and contruction time on installing these cables in this particular cable tray orientation.
RE: Cable Trays Installed Vertical In A Different Manner
Your tray supports will have to be closer to accomodate the loss of strength.
However, I have seen this done on short runs inside cooling towers where normal horizontal trays were thought to block too much air flow. All of the issues you mentioned were considered. Conduit racks would have been better.