Because of nearly universal regulations about running AC
power, and if you are not a qualified electrition,
insurance coverage is void, and you take on all
responsibility if there is a fire or accident involving AC.
The 60Hz AC powerline frequency wavelength is Wayyyyyy
longer than any mast will influence. Don't worry about it.
Any electronic device mounted on the mast will be toast
if there is a lightning strike.
Just run your ethernet and DC power lines up the tower,
and plan on replaceing parts if you get hit by lighting.
You can get some optical couplers that * may * help the
indoor electronics survive, but again, don't count on it,
most supression devices barely work for nearby strikes.
--- Andy Middleton <[EMAIL PROTECTED]> wrote:
> Jack,
>
> Another little doubt over AC power lines and antena
> masts;
> Here we have 220V AC, but I suppose it is the same for my
> question; I
> have placed an AP 7-8m off the ground, just under the
> antena, and
> obviously I have to get power to it. Well I have run an
> AC cable INSIDE
> the mast ( i thought it would be easier) up to the AP, or
> rather just
> below it where the transformer to DC is placed.
> However, after not getting excellent readings for the AP,
> it has
> occurred to me that
> i) as a pringles can makes a radio wave because of an
> electric current
> in the center of its diameter, could the mast be causing
> a seperate
> radio wave as the AC line goes up the middle? Could this
> affect my
> signal?
> ii) it could be more dangerous than normal in the case of
> a lightning
> strike? although the antena is grounded to the enormous
> metal fence that
> it is mounted on, the power line goes from just below the
> AP to inside
> the mast and then to the residence at 10m where the power
> comes from.
> I am not really sure what to do about this 2nd point;
> maybe bring down
> the AP, or its transformer or is it safe as it is?
>
> Andy
>
=====
"Welcome to the Darwinian Gene Pool Preserve.
Go ahead and lean over the safety rail as far
as you like and hand feed the carnivores."
Non-Sequitor by Wiley
