[Antennas] Radials

Sat Apr 18 00:25:55 EDT 2015

Do yourself a favor...Google "lightning concrete damage" ...get the lightning off the tower by other means than THRU the concrete.
Richard

Hi Richard - 

According to the electrician, whose company does a lot of grounding work here, rods would add nothing to the protection afforded by the Ufer ground. But that wasn't the question. 

73, Mike NF4L 

-----Original Message-----
From: Mike Reublin NF4L <nf4l at comcast.net>
To: Riichard Neuman <secopsys at aol.com>
Sent: Fri, Apr 17, 2015 9:03 pm
Subject: Re: [Antennas] Radials
Hi Richard - 

According to the electrician, whose company does a lot of grounding work here, rods would add nothing to the protection afforded by the Ufer ground. But that wasn't the question. 

73, Mike NF4L 

On Apr 17, 2015, at 20:51, Riichard Neuman < secopsys at aol.com> wrote: 

 You want to get the possible lightning strike off and away from each leg before the concrete. Clamps on each leg with heavy duty gently sweeping wires out to driven ground rods...one at each leg driven into the ground NOT thru the concrete. In addition possibly further ground rods heading away from each leg.

-----Original Message----- 
 From: Mike Reublin NF4L < nf4l at comcast.net> 
 To: antennas < antennas at mailman.qth.net> 
 Sent: Fri, Apr 17, 2015 8:04 pm 
 Subject: [Antennas] Radials 

I have a 70' tower with an inverted-L for 160M and a 1/4 w sloper for 80M. The
tower base has 8 yards of concrete and a lot of rebar. There are 3 #4 copper
wires, with one end attached to each tower leg, then into the concrete, attached
to the rebar then exits the concrete just under ground. 
The original plan
was to put 3 ground rods along each wire. My electrician told me that as far as
safety grounding goes, there was no benefit. The tower/base megged at 4
ohms.
The wires are currently rolled up at the base of the tower. If I
straighten them out and staple them to the lawn, do they then act as radials?
Would it be feasible to attach more radials to these where they emerge from the
concrete, so as to avoid having the top of the concrete pad awash in
wire?
73, Mike
NF4L
______________________________________________________________
Antennas
mailing list
Home: http://mailman.qth.net/mailman/listinfo/antennas
Help:
http://mailman.qth.net/mmfaq.htm
Post: mailto:Antennas at mailman.qth.net
This
list hosted by: http://www.qsl.net
Please help support this email list:
http://www.qsl.net/donate.html