[TowerTalk] Station grounding in a steel enclosure?

[Roger (K8RI) on TT]

CME? EMP?

73

Roger (K8RI)

On 8/28/2016 Sunday 3:24 AM, Jim Brown wrote:
> Trent,
>
> The larger question is why you need a Faraday cage in the first place. 
> Few stations do. What most stations need is proper BONDING, proper 
> grounding, proper power, and proper interconnections between 
> equipment. Study http://k9yc.com/GroundingAndAudio.pdf
>
> 73, Jim K9YC
>
> For On Sat,8/27/2016 10:28 PM, trentkd5ia--- via TowerTalk wrote:
>> My remote station is approaching completion.  A 70' tower, wireless 
>> internet, solar power and RemoteRig with a TS480 is all operational.  
>> Still in progress are the antennas to be mounted, and lightning 
>> protection.  I have a question about grounding.  The electronics are 
>> housed in a valve box--a galvanized steel cylinder 5 feet in diameter 
>> and 4 feet tall, with 3 1/2 feet of that in the ground.  A removable 
>> steel lid covers it.  All cables are in PVC pipe and enter the 
>> housing under ground level, and the valve box is 12 feet from the 
>> base of the tower.
>>
>> The grounding system will consist of 9 ground rods, 3 connected to 
>> each leg of the tower and extending out from the tower.  The valve 
>> box will also be connected to the grounding system. Polyphasers will 
>> protect against surges.
>>
>> My question is, can I install the surge protectors inside the steel 
>> housing, or should they be mounted outside the valve box? I'm 
>> thinking that the steel cylinder possibly acts as a Faraday cage, and 
>> the grounding connection and surge protection should be attached on 
>> the outside wall of the housing.  Any comments or suggestions, please?
>>
>> Thanks!
>>
>> Trent K5XM   on the windy and lightning prone West Texas plains 


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