----- Original Message -----
From: <paul@w8aef.com>
To: "Doug Rehman" <rehman@surveil.com>; <towertalk@contesting.com>
Sent: Tuesday, July 05, 2005 1:22 PM
Subject: Re: [TowerTalk] Obstruction Lighting
>I am under the impression that if you run 110 vac to and up the tower the
> work has to be done by a licensed electrician.
>
OR you do it your self in many areas. If I hire it done I'd have to hire a
licensed electrician. OTOH I've wired part of my shop, rewired the house
with a new breaker panel increasing the capacity from 60 AMPs (yup, for the
whole house) to 200 AMPs, added circuits, put in a large transfer switch and
associated breaker panel. I had to get a permit, I had to do it to code,
and satisfy the electrical inspector, but that was it. It cost $15 for the
permit and I think it was $10, or $15 for each new circuit added.
Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com
> Of course if you installation does not have to be inspected.......
>
> de Paul, W8AEF
>
> ----- Original Message -----
> From: "Doug Rehman" <rehman@surveil.com>
> To: <towertalk@contesting.com>
> Sent: Tuesday, July 05, 2005 4:06 PM
> Subject: [TowerTalk] Obstruction Lighting
>
>
>> Due to my proximity to a small airport, the FAA is requiring obstruction
>> lighting (L-810 light or lights) on my tower; painting is not required
>> though. The tower will be a Tri-Ex LM-354HDSP 54' crank-up with 15' of
>> mast
>> out the top.
>>
>> My first decision is where to mount the light(s). I was planning on a
>> VHF/UHF vertical on the top of the mast. If I do this, then I'm going to
>> need two lights since the light couldn't sit on the top of the mast. To
>> cut
>> the lighting cost in half, I will probably make a sidearm for the VHF/UHF
>> vertical to mount on pointed downward, thus allowing the light to sit on
>> the
>> top of the mast.
>>
>> The next decision isn't quite as easy to make. I can use a standard 110
>> VAC
>> light that costs about $120 or a 12 VDC light that costs $223 (Dialight
>> model 860-1R03-001 from www.unimar.com). Either option only requires a
>> couple of amps.
>>
>> I will have mast mounted preamps for 6m, 2m, and 70cm mounted at the top
>> of
>> the tower, so I need 12 VDC there anyway. I could run 110 VAC to a NEMA
>> box
>> with a 12 VDC power supply in it to feed the preamps and use the 110 VAC
>> to
>> feed a standard L-810 light. A heavy outdoor extension cord, or stranded
>> THHN, encased in flexible conduit would be used to run the 110 VAC to the
>> top. The tower will already have 110 VAC at the base to run the winch.
>> Alternatively, I could use the more expensive 12 VDC L-810 light and just
>> run 12 VDC to the tower top for everything; running the preamps and light
>> from a trickle charged battery would provide for emergency power.
>>
>> I'm leaning strongly towards the last choice (all 12 VDC on the tower),
>> but
>> looking for input from the collective wisdom and experience of the group
>> before committing.
>>
>> Thanks,
>> Doug
>> K4DDR
>>
>> _______________________________________________
>>
>> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
>> any questions and ask for Sherman, W2FLA.
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
> any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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