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ntsecurity35

Groundloop problem.. is there a way to avoid it?

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Sure, power everything from the same supply, dont mount anything on something that can cause a ground loop, keep far away from high voltage, or use UTP with something like the NVT gear with ground loop isolation built in.

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Everything rory said (although keeping clear of HV cables is more to do with induced hum, than ground loop) , and also consider using a 12vDC powered camera mounted on an insulated platform / bracket .... or fibre optic transmission .... or wireless ..... or .....

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yep thought i'd throw that in there anyways .. ive never got a ground loop myself but certainly the interference ...

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I always design out ground loop problems, but used to spend quite a bit of time sorting out other peoples! Oh lucky me!!

 

It's far more common on larger industrial sites where the earthing points can be quite some distance apart.

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