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Re: [TowerTalk] Freestanding tower, narrow city lot

To: "Tower and HF antenna construction topics." <>
Subject: Re: [TowerTalk] Freestanding tower, narrow city lot
From: jimlux <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Mon, 26 Apr 2010 14:41:05 -0700
List-post: <">>
Steve Katz wrote:
>> I believe that the national electric code requires you to stay one and
> one half times the height away from any power line.<
> ...and...
>> This brings up a question:  If it is 1.5 times the height for
> clearance, 
> there are a number of commercial towers and cell towers locally that 
> appear if they went over they'd hit the power lines.  These are both 
> free standing and guyed, in town, and the country. Without being able to
> physically see the location, there is no way for me or anyone else to
> physically look into our crystal ball and see what your location looks
> like.<
> ::If there is such a statement in NEC (I don't recall this), it
> obviously isn't being followed nor enforced anywhere around here in Los
> Angeles.  Many of our own freestanding streetlamp posts have almost zero
> setback from overhead utility lines, and there must be 100,000 of those!

The NEC doesn't apply to utility equipment, which the power pole is. 
Basically, the NEC's "domain" starts at the service entrance.

I don't recall seeing a 1.5x clearance requirement in the NEC, either. 
Not that it isn't there, but I just don't remember seeing it.

The NEC does have rules about how high above the ground the feeder or a 
branch circuit has to be (10 ft over sidewalks, 12ft over driveways, etc.)

There's also the NESC (National Electrical Safety Code), which has rules 
about how high trees should be under power lines and such.

OSHA has rules about ladders, scaffolds, and the like, as well.

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