dish grounding

hairybadger

hairybadger

Bricoleur
My Satellite Setup
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My Location
near Geneva, Haute-Savoie, France
Hi,
I was wondering what general opinion was on grounding dishes. My dish is wall-mounted well below roof-level. I'm not sure if I should be grounding it or not. I'm also not sure if I should be grounding the cables via a grounding block, and if I do ground them if I need to ground them via a dedicated earth spike or to bond them to the electrical system's earth. I don't understand the physics well enough to make an informed decision! Thanks :)
 
This crops up now and again and there are many interesting views! Grounding anything can make it more likely to be struck by lightning. Grounding a metal satellite dish will not make the satellite box in your home safer as the dish is isolated from the cable (the lnb holder is no doubt plastic and the lnb cover itself is plastic). As for putting a grounding block on the cables I will leave that to our part P qualified electricians (think thats the reg that covers this).
 
DishDick said:
This crops up now and again and there are many interesting views! Grounding anything can make it more likely to be struck by lightning. Grounding a metal satellite dish is unlikely to make the satellite box in your home safer as the dish is isolated from the cable (the lnb holder is no doubt plastic and the lnb cover itself is plastic). As for putting a grounding block on the cables I will leave that to our part P qualified electricians (think thats the reg that covers this).
Click to expand...
 
DishDick said:
This crops up now and again and there are many interesting views! Grounding anything can make it more likely to be struck by lightning. Grounding a metal satellite dish will not make the satellite box in your home safer as the dish is isolated from the cable (the lnb holder is no doubt plastic and the lnb cover itself is plastic). As for putting a grounding block on the cables I will leave that to our part P qualified electricians (think thats the reg that covers this).
Click to expand...
Yes - it was the "many interesting views" that made me ask :)
 
DishDick said:
This crops up now and again and there are many interesting views! Grounding anything can make it more likely to be struck by lightning. Grounding a metal satellite dish is unlikely to make the satellite box in your home safer as the dish is isolated from the cable (the lnb holder is no doubt plastic and the lnb cover itself is plastic). As for putting a grounding block on the cables I will leave that to our part P qualified electricians (think thats the reg that covers this).
Click to expand...
Click to expand...
You could always ask a s*y installer!!! :-rofl2
 
Or you could ask a tree, you would probably get near enough the same answer :D

Personally i don't think its a good idea to bond it to the buildings main earthing terminal (MET) myself. Last time i looked lightening can in theory jump to take the least resitant path to earth. There is a possibilty that the 1.21 Gigawatts or so could jump into the houses wiring circuit causing all sorts of problems.

Thats what Doc Brown told me anyway :D

I don't see the problem in using an earth spike but i personally wouldn't earth a dish or an aerial to the buildings MET.

Nano
 
nano said:
Personally i don't think its a good idea to bond it to the buildings main earthing terminal (MET) myself. Last time i looked lightening can in theory jump to take the least resitant path to earth. There is a possibilty that the 1.21 Gigawatts or so could jump into the houses wiring circuit causing all sorts of problems.

Thats what Doc Brown told me anyway :D

I don't see the problem in using an earth spike but i personally wouldn't earth a dish or an aerial to the buildings MET.
Click to expand...
OK, understood. Since the dish is on the wall well below roof-level I guess I have little to gain by earthing it, anyway. Thanks!
 
Any strike near a satellite dish and earthing or lack of it is going to be the least of your problems.....
 
Do you mean the rather large hole in your house caused by the plasma from the lightening vaporising the satellite dish, the mount, the cabling, the sat box connected to the cables and the TV connected to the sat box and not forgetting the surrounding brickwork near the dish :-lmao
 
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