Quote:
Originally Posted by ranchersd
... I have read much already about grounding the mast and coax without a clear vision of how solve my mast grounding issue. My challenge is that my antenna installation point is on the opposite corner of the house as my electrical box (which is where I suspect the electrical service ground is).
I have found the list of grounding possibilities:
1. the building or structure ground electrode system as cover by 250.50
2. The grounded interior metal water pipe system within 5 feet of point of entrance to building
3.the power service accessible means external to the building
4.the metalic power service raceway
5.the service entrance encolsure
or
6.the grounding electrode conductor or the ground conductor metal enclosures.
Of the above list, only #s 1 and 6 are options but I would have to navigate half of the perimeter of my house to do so. Is there an option not listed above that I could consider? Could you please direct me to some recommended reading for the purposes of antenna mast grounding?
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Quote:
Originally Posted by ranchersd
... The antenna is mounted to my chimney and is approximately 30' in height. I sunk an eight foot grounding rod near the corner of the house. The mast and the coax grounding block are connected to the rod. Additionally, I have the grounding rod bonded to the house ground by way of ground connection for my Air Conditioning compressor ...
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Your grounding will provide protection from static buildup... But...
Best practice would be to bond the new ground rod to the electrical service ground with a #6 AWG or larger diameter copper conductor - directly, rather than via a branch circuit ground conductor. Consider the consequence of a large fault current flowing from the antenna system, to the power ground via the branch circuit conductor... when current flows, there is voltage drop... what would the difference in voltage at the compressor unit frame/chassis do to the control electronics in your HVAC system? Current will flow in any and all conductors when a difference in voltage exists between each end of the conductors. Again, best practice is to avoid connections that invite fault current to flow through equipment and wiring that is not designed for or, intended to carry such current.
The HVAC system, including the compressor unit frame is not by definition, any of the items in your list. Items 3, 4 & 5 are the metallic mast/conduit into and out of the electrical service meter base and the service panel or a grounding connector attached directly to those parts.
http://forum.tvfool.com/showthread.php?t=901