Vehicle mounted Generator

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wmeek

Senior Member
Location
Texas
Occupation
Electrician
If a generator is mounted to a tractor frame by the way of nuts and bolts, are you required to run a copper grounding elctrode conductor as well from X/O to frame. Or would the bolting of generator to frame satisfy this requirement.
 
wmeek said:
If a generator is mounted to a tractor frame by the way of nuts and bolts, are you required to run a copper grounding elctrode conductor as well from X/O to frame. Or would the bolting of generator to frame satisfy this requirement.
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Bolting to the frame is an acceptable bond provided no transformer is involved. Be sure that the use of the generator falls within the scope of NEC 250.34 (A) and (B) as well.
 
Ther will be two feeds from generator. One going to a 480 volt panel,and one going to a 480v Transformer stepping down to 120/240 for low voltage panel. In the 480v panel is a frequency monitor that controls a contactorfor the 480v panel. The frequency controller needs 240v to it. That 240v is coming from low voltage panel. I think the frequency controls the 480v panel to kick it out if the frequency drops to keep the welders from welding at a lower voltage.
 
There will be a Transformer for the 120 /240 panel. I will bond the X/O to the frame. That should be all the bonding that is required.
 
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