G.E.C. at transfer switch

dhsvcs

Member
Location
miami
Occupation
electrician
I have a couple of questions about connecting the grounding conductor (#4 solid bare Cu) to a transfer switch with not enough connection terminals to the existing grounded neutral block and connected to a meter can fed with a pvc nipple that has the utility fed neutral and grounding lug shared/attached at the meter can. The L.J.H.A. does want the G.E.C. connected at the transfer switch. The 200 amp transfer switch has a 50 A feed from a common outdoor twistlock premade male receptacle box.
1. Does the G.E.C. need to utilize the existing bonded block, or can I get a larger grounding bar with more positions since
the disconnect switch/enclosure is bonded/connected to the enclosure anyhow..
2. Can I remove the existing bonding terminal at the transfer switch and utilize the factory tacked in angle for terminal block with more positions ?
2. Does the meter can need to have a ground wire or is the G.E C. connected at the the bonding neutral in the transfer switch sufficient ?
If you have a reference article with a pictorial diagram, I would be happy if you could reference the link...
Thanx, dhsvcs
 
Can I remove the existing bonding terminal at the transfer switch and utilize the factory tacked in angle for terminal block with more positions ?
Is this the neutral bus in the transfer switch? If so the GEC can terminate there. The GEC can also terminate in the meter enclosure if it is permitted by the POCO. Some utilities do not allow the connection in the meter.

Can you post some photos of the installation?
 
see attached...thanx
 

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The GEC needs to connect to the neutral bus but the EGC can be connected to the enclosure. That would clear up a connection point for your GEC.

Note: Remove the tag on the bond screw.
 
that is a "defective", loose, existing lug.
If I don't need to ground the meter can and add an additional wire, I will try to remove the terminal block and repair it...
Thanx, dhsvcs
 
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