[TowerTalk] Tower Lighting

[W0MU Mike Fatchett]

Or leave the lights on all the time? 


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-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Roger Parsons
Sent: Wednesday, April 21, 2010 12:43 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Tower Lighting

I have access to a 325' tower for my remote station, and like to assist the
tower owner where possible.

The tower lighting is controlled by a light sensistive switch working a
relay which actually controls the lights. The relay controller appears to be
home made and did have a large open frame relay in it - until the contacts
completely disappeared! (The actual load from the lights is about 1200w on
each of two phases.) I replaced the relay with a 30A contactor which I
thought was overkill and it was fine for several years, but that is now
getting unreliable. Clearly there is a pretty heavy switch on surge with
incandescent lamps, but this must be true at all tower sites.

What do the professionals do? (I suspect the answer to that is spend several
thousand dollars with Cutler-Hammer.....)

73 Roger
VE3ZI





      
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