justwondering
Member
I recently removed two disconects and a small panel replacing them with an 3 phase,800 amp panel with main. The new panel is located adjacent to old switchgear(1952) and is fed by parrallel runs of 500, 500 neutral and 1/0 ground. It is connected by two 3 1/2 inch nipples just off the floor. The two sets enter the switch gear where in two feet the grounded conductors and the equipment grounds run up 5 feet and over two feet to be lugged on the neatral bar. The hot legs continue two feet on the bottom to be lugged to the bus bar there.
The Problem is the inspector felt that seperating the conductors like that created induction problems, a danger, as they would create heat.
Induction was not on my mind at all. The
switch gear is an enclosure and I can do pretty much what I want with the wires. Induction doesn't create heat as much as it creates Noise which may interfear with sensitive electronic equipment down the line, but not in this case. I understand that keeping the wires together minimizes the fields but it is not as important as practicality "In an enclosure"
Even sillier to me is that the ispector wants me to measure the amp draw of everything to see if there may be a problem, ballancing issue. One measures induction with an occiliscope right? Anyone care to enlighten me on any of this I would apprecitate it.
The Problem is the inspector felt that seperating the conductors like that created induction problems, a danger, as they would create heat.
Induction was not on my mind at all. The
switch gear is an enclosure and I can do pretty much what I want with the wires. Induction doesn't create heat as much as it creates Noise which may interfear with sensitive electronic equipment down the line, but not in this case. I understand that keeping the wires together minimizes the fields but it is not as important as practicality "In an enclosure"
Even sillier to me is that the ispector wants me to measure the amp draw of everything to see if there may be a problem, ballancing issue. One measures induction with an occiliscope right? Anyone care to enlighten me on any of this I would apprecitate it.