Current on cable tv's ground
Current on cable tv's ground
(OP)
We have a apartment building complex in our electrical distribution system. The problem area has 3 buildings with 4 apt. each. We have current leaking onto the cable tv's ground causeing pixelation and dropped calls. The current is only 1-3 amps .5 amps is the high limit. We have added 8' rods at the pad mount and bonded more at the feed through transformer and at the riser. The neutral is parellel 2/0 and in good condition with a 1/0 copper ground back to the pad mount approx. 80' away. Also the service at each building has a rod and is bonded to the water system. Any ideas?






RE: Current on cable tv's ground
Bill
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"Why not the best?"
Jimmy Carter
RE: Current on cable tv's ground
RE: Current on cable tv's ground
If the neutral conductor is grounded at both ends -transformer side and at the building side- and if also the TV grounding conductor [or shield] is grounded both ends, then the two parallel conductors will shared the neutral current inversely proportional with their impedance. You have to insulate one of the ends-my opinion on both conductors.