Yeah, you are right. The Neutral and Ground bus are not connected, however
the guy left the bar bolted into the neutral bus and left the other side
hanging without a bolt. Basically, he did not bolt the bar down onto the
ground bus. When the electrician that I currently have looked at it, he
said that it needed to be connected and stated what the correct bolt size
for it would be but I cannot remember. It is a subpanel. The main panel
with a main breaker sits out in front of my house and the subpanel is inside
with all of the individual circuit breakers in it, in additon to the main
for that panel.
The old electrician who was a builder/electrician who did the remodel also
left notes saying that an future electrician should split the 3 and five
wire branch circuits to each leg of the incoming power and panel bus to
prevent overload on the neutrals. The new electrician who is a master
electrician, head of a local electrical union said that this doens't really
make sense. Does it make sense to you?
I also know that the city likes to have all neutral circuits split up at the
device locations and to avoid tying all neutrals together. The new
electrician said that this is not really necessary but would do it if I
wanted him to. Does this make sense to you.