Quote:
Just to make it clear, I was not suggesting that the outside CATV ground be disconnected, but that the CATV ground rod be tied to the house ground rod via some substantial copper wire. |
sounds good in theory but not workable in practise.the local grounding rod for CATV and SATV is right near the inlet for a reason and that is to dissapate a lightening strike right there where the cable enters the dwelling.
With a dish it is easy to see how it could be an attractor for lightening but with cable less so until you think how these things work.
A lighteneing strike miles away can still ride in on the cable unless the energy is dissapated into the ground right there as it enters.Fail to have the rod below the frost line of your locality and you accomplish nothing in clod climates.
There is a reason why electricians get paid a lot of loot and must pass a test AFTER apprenticing for a period of time under a liscenced electrician
before they themselves are liscenced.
These are not things for untrained "civilains" to be mucking around with becasue the end results can be way more disastrous than having a small system hum problem.And if the modifiaction IS done by someone other than a liscenced electrician and the house gets hit and burns down or at the minimum takes out all your electronics your home owners insurance will not be worth the paper it is written on.
I am totally a beleiver in both the proiper earth ground surge supressor since having a VCR take a hit about ten years ago.
It was first electronic device in the line from the cable inlet and how the TV survived was most likely pure dumb luck but when nothing worked I opened up the VCR and what i found was every single capacitor had "popped" and they looked like a bunch of Q-tips had moved into my VCR when no one was looking
every single one had the internals sticking out the top,little "fuzzies" which was the internal dielectric of the cpas.Obviously repair was not on the list and i crapcanned the whole deal,went out and immediately purchsed a couple of surge supressors that had protection for cable and phone lines as well as the AC.Taking no chances after that experience.
Anything that leads in from outside in a potential source of lightening riding in unless locally grounded