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Electric Motor Clearance

Electric Motor Clearance

Electric Motor Clearance

(OP)
I have a 60HP TEFV Explosion Proof motor that we need to mount to a skid.
Behind the motor is a a Steel plate for a tank.
I know there is a minimum clearance for this, can anyone help me with what this value is, or at least a rule of thumb for it?

RE: Electric Motor Clearance

Never heard of such a requirement. Ask the manufacturer?

RE: Electric Motor Clearance

I have never thought of that requirement either but I assume you are concerned about good airflow to keep the surface temperature of the motor within requirements.  It is probably in the installation manual of the motor.  I know that dry type transformers list the required clearances for ventilation.

RE: Electric Motor Clearance

I'll make up a rule on the spot;  the motor should be spaced at a minimum distance of 2X the diameter of the fan grill opening from the wall.  This gives a ratio of 8 for Radial Air Flow Area to Grill Opening Area.

RE: Electric Motor Clearance

(OP)
Thanks for the help with this.

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