I have had some experience with induced current flow in the enclosures of isolated phase bus systems. If the enclosure are not bonded together very well, it will cause overheating and failures. According to the information provided to me, approximately 90% of the current flow in an isolated conductor is induced in the enclosure in the opposite direction. I now have a similar case where a single phase two wire 1.2 kV feed is being installed with single conductor armored cable. The penetrations have been installed with non-ferromagnetic gland plates and accessories to prevent inductive heating. I am concerned that the armor terminations and bonding may not be adequate. Do you have any advice for me or know where I can find information that deals with this issue? Thanks in advance.
Vernon
Vernon