Rick - VA3RZS/Charlotte - VA3CMR wrote:
>Hello group
>
>I am looking for some grounding kits for the LDF5-50A 7/8
>Andrews Heliax
>
>I have one allready installed at the top of the coax and was told I
>should have one at the bottom also .. any comments on this ?
>
Hi Rick,
I don't have any grounding kits I can spare, but I will comment on what
is practice around here. Most professional tower companies here require
a grounding kit to be installed at the top end, every 100 foot of cable
from there to the bottom, one just above where it makes the turn
horizontal, and one after the ice bridge just before the entrance
panel. The cable will extend inside the building and terminate at the
Harger Panel where a PolyPhasor device is mounted and allows the
transition from downlead to jumper.
On long (tall) tower runs, the ones placed every 100 feet are to insure
you don't have a difference in potential between the tower and the
feeder which could lead to an inductive (transformer) reaction.
Kevin Custer
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