Hi guys,
Just moved to my new QTH with lots of land and no real
restrictions. I live ON a hill so my towers could be
subject to potentially more hits than normal.
Have a 90 foot crankup and two 5 foot crankup towers
up. Want to keep the lightning energy mostly
dissipated at the tower. I plan at least 5 ground
radials for the 100' and 4 for the 50' footers.
Looking for a good way to ground the tower to earth.
Without the gory details on all the common grounding
to and from the shack I want to know what works well
for you at the tower.
I have read the Polyphaser lightning manual and
everything else I could find. So here is my question.
When grounding a tower, assuming 8 foot ground rods on
the ground radials every 16 foot, what should I use
for the conductor.
I see Polyphaser recommends flat copper strap 1.5 or 3
inches in width using their copper compression device
allowing connection of the strap to a 5/8" copper clad
rod. I would use the polyphaser stainless steel
special hose clamps to interface the copper strap to
the galvanized tower legs making a clean low
inductance path directly to ground with no corrosion.
An alternate method my buddy tells me is to use 3/0
bare stranded copper cable Cad welded to the rods with
the same rod spacing. A problem arises on how to
connect the cable to the tower using Bronze
terminals??
The cost is about a wash so I am interested to know if
you have experience with this situation how would you
do it. Lightning is coming, I need to ground the
stuff soon.
Thanks in advance,
Dave...
Dave...
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
_______________________________________________
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
|