Transformer Support

[blues]

I would like to wall mount a 3 phase 145kva transformer that weights 990lbs. Are there any NEC requirements that would prohibit such an installation (I can not find one).

I plan to provide some type of uni-strut support if approved by an structural engineer.

Dan

 

[iwire]

I would like to wall mount a 3 phase 145kva transformer that weights 990lbs. Are there any NEC requirements that would prohibit such an installation (I can not find one).

No, the NEC does not prohibit that.

I plan to provide some type of uni-strut support if approved by an structural engineer.

Check with the manufacturer, many times they can supply wall brackets assuming your wall can take that kind of load.

 

[VinceS]

If I understand...

If I understand...

You are just asking is strut is ok. I ASSUME that the transformer is to be installed in a fire resistant room transformer room (450.21(B), size over 112.5 kva), and the MFR states it is ok to mount to a wall. ( Note: Not trying to be a stick in the mud, but most of the large transformers I've installed have a MFR's info which states install must be X given distance from a wall to allow for cooling. (450.9) )