cdru
Go Colts
Premium,MVM
join:2003-05-14
Fort Wayne, IN
| reply to tschmidt
Re: Bureaucracy or safety?
said by tschmidt  :said by russotto : If Verizon is running non-metallic optical cable into the customer premises, any grounding or bonding is about as important as teats on a boar. Not sure what all the fuss is about. Some fiber cable include conductor to facilitate tracing even though they are not required for data transmission. However: I think Verizon drop cables are completely nonmetallic. It's a safety ground for internal wiring, not just for the incoming drop. The grounding isn't necessary per se for the ONT, but for all the things that get connected to the ONT. TVs and VCRs are notorious for leaking AC onto the coax shield. The proper grounding just gives a better path for the current to safely dissipate rather then through you if you should happen to contact the wire.
Is it a huge safety issue? No. Is your house going to burn down? Not likely. Are there thousands of existing telephone and cable drops that are improperly grounded across the country (and not just Verizon's fault)? Definitely. Is it worth doing correctly? Yes.
said by tschmidt :The lack of metallic conductor exiting the building means ONT is no different then any other electrical device. ONT is powered by three-wire grounded AC feed. I assume (but don't know for sure) that AC safety ground extends from power supply to ONT. I'd have to double check, but I thought my ONT's power supply was powered by just a polarized 2-prong connector. If that is the case, the actual power supply is just a variation wall-wart transformer and does not have a ground. |
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NetAdmin
CCNA
join:2008-05-22
| said by cdru :The grounding isn't necessary per se for the ONT, but for all the things that get connected to the ONT. TVs and VCRs are notorious for leaking AC onto the coax shield. The proper grounding just gives a better path for the current to safely dissipate rather then through you if you should happen to contact the wire. Ding ding ding... A winner.
Is it a huge safety issue? No. Depending on the level of power leaked into the coax shielding, it can be. I have, on more than one occasion, heard of techs getting nice jolts from older installs that weren't grounded (it was not always required by code).
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Eleven years of carrying The Clue Bat... |
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