Hi All, my DSTV lot got wacked (again) last night. It seems as if the LNB and decoders have gone across the Styx. Google says earthing is essential, even a CoC requirement. I hope the learned forumites will be able to assist. Google says:
The dish must be bonded to the building main earth: not practical in my case as the dish is quite far away from the main DB.
Using only an earth spike causes/might cause differential voltages with further problems.
Then the options:
Earthing to a close by earth in a socket outlet an option?
Add a spike to that just to be sure?
Coax screen to be bonded to dish/bracket and thus to the earth?
Copper or alu cable for earth conductor? Corrosion of copper? Oxidation of alu not as severe? Recommended cross sectional areas?
Use stand-offs for the earth cable, ie conductor not touching the wall? Or conductor housed in plastic conduit? Plastic conduit does not last in the Highveld sun. I was told years ago lightning discharging its energy via a wall clipped and uninsulated conductor could cause a crack so this might be an important consideration.
Your advice is appreciated, PJ
The dish must be bonded to the building main earth: not practical in my case as the dish is quite far away from the main DB.
Using only an earth spike causes/might cause differential voltages with further problems.
Then the options:
Earthing to a close by earth in a socket outlet an option?
Add a spike to that just to be sure?
Coax screen to be bonded to dish/bracket and thus to the earth?
Copper or alu cable for earth conductor? Corrosion of copper? Oxidation of alu not as severe? Recommended cross sectional areas?
Use stand-offs for the earth cable, ie conductor not touching the wall? Or conductor housed in plastic conduit? Plastic conduit does not last in the Highveld sun. I was told years ago lightning discharging its energy via a wall clipped and uninsulated conductor could cause a crack so this might be an important consideration.
Your advice is appreciated, PJ
