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Jerome W. Young
08-26-2009, 11:34 AM
hmmm. i know its wrong but i cant come up with all the reasons.
Vern Heiler
08-26-2009, 11:37 AM
Three phase panel wired with single phase power.
Jim Port
08-26-2009, 11:55 AM
The problem is the lug is only listed for use with one conductor.
Jerry Peck
08-26-2009, 12:09 PM
The problem is the lug is only listed for use with one conductor.


Plus the jumper is too small.

I also see, top left breaker (100 amp), which supplies SOMETHING and there is no neutral, and it looks like there is another similar cable behind it.

If that supplies another panel, that feeder needs to have 4 wires: 2-hot, 1-neutral, and 1-ground.

If that supplies equipment or appliance which is truly only 240 volts (and there is no 120 volt aspect in it), then those should be okay, but at 100 amp ... that is rather large for a single appliance.
Jim Port
08-26-2009, 01:09 PM
Even if the wire were properly sized it would still be wrong for the reason I posted.
Jerome W. Young
08-26-2009, 02:40 PM
that 100 amp feeds a non service panel whose neutrals and grounds are not floated

the main service cables are 1/0 copper with a 200 amp block type fuse. lots of things for an electrician to do here.
Jerry Peck
08-26-2009, 03:11 PM
Even if the wire were properly sized it would still be wrong for the reason I posted.

I know, that's why I quoted you and said "Plus ... ".
Jerry Peck
08-26-2009, 03:12 PM
that 100 amp feeds a non service panel whose neutrals and grounds are not floated

Not allowed.

Needs to be a 4-wire feeder cable.