Hey all,
I saw this picture on the net and was hoping someone can clear up some confusion. If the neutral in this picture is bonded in the trough and at the the switches where the main disconnects are isn't this not a violation?
Yet the way we connect the GES to water lines means there will be instances where current is normally going to be flowing through said water meter. When everything is in new/good condition opening the circuit by removing that meter doesn't subject the person doing so to much risk though, later on when some things have had a chance to deteriorate is when those installations can be a high risk if conditions are right. A neutral in parallel with a metal raceway between meter socket and service disconnect is an example where the risks are not generally that high, yet the function of the raceway is not to carry current though it will anyway.This is just my way of thinking, but to me objectionable current is current where an average person wouldn't expect it like at a water meter. The water meter isn't part of the electrical system per se, but can certainly carry harmful current and needs a jumper bonded around it. The current through bonds of different pieces of electrical equipment that aren't usually disassembled under energized conditions (like a metal raceway between meter socket and service disconnect) won't hurt anyone, therefore isn't "objectionable."
I don't see how. For an SDS the first disconnect is the same as the service disconnect and you are allowed to bond the neutral there when you use a metallic raceway......This generally isnt enforced much for services, although IMO, the wording is there to require you to set up your bonding jumpers as you would at an SDS, or use a non-metallic raceway.....
I don't see how. For an SDS the first disconnect is the same as the service disconnect and you are allowed to bond the neutral there when you use a metallic raceway.
For a service it is different in the fact that the grounded conductor must be bonded to pretty much every enclosure it has terminations in as well as in the service disconnecting means enclosure, and there is no such thing as equipment grounding conductor until you are past the main bonding jumper, everything is bonded to the grounded service conductor ahead of the service disconnect.
I don't see how. For an SDS the first disconnect is the same as the service disconnect and you are allowed to bond the neutral there when you use a metallic raceway.
The code only prohibits multiple points of connection between the grounding and grounded conductors on the load side of disconnect. On the line side of the disconnect the grounded conductor is permitted to be used for both purposes.
In the supply side, line side, ahead of the first point of disconnect (service), any conductor whether it is a metallic enclosure or a conductor, is in parallel with the grounded (neutral) conductor. If the installation is properly installed.