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[Towertalk] Box forSPG and Lightning protectors

To: <>
Subject: [Towertalk] Box forSPG and Lightning protectors
From: (Bill Hider (N3RR))
Date: Thu, 19 Sep 2002 22:39:31 -0400
Let's take this one item at a time:

Phone lines (TELCO) come into the house from the outside (either above or
below ground).
Most, if not all, codes require TELCOs to provide lightning protection on
each pair of lines
entering the house. So, don't worry about this.  Just be sure your ground
grid at your house
ties the TECLO ground into it.  I do this by tying my house ground-grid into
ground rod.  See: for pictures and pictorials.

CAT5 cables do not come into the house from the outside.  So, don't worry
about the external SPG.
They are something you ran throughout the house as a LAN.  I used Shielded
CAT5 cable and made a SPG for that cabling in the
TELCO closet and grounded the SINGLE CAT5 ground wire to TELCO's ground
(which is connected
to the house SPG).  If you didn't use shielded CAT5, I have no idea what
grounding there is on non-shielded CAT5.

That should answer the question.

Bill, N3RR

Bill Hider
Senior Consultant #3058
301-424-3666 (voice)
301-642-0903 (mobile)
301-279-5613 (fax)

----- Original Message -----
From: "Jon Ogden" <>
To: "Guy Olinger, K2AV" <>; <>; "'Tower
Talk (mail list)'" <>
Sent: Thursday, September 19, 2002 9:30 PM
Subject: Re: [Towertalk] Box forSPG and Lightning protectors

> on 9/19/02 8:10 PM, Guy Olinger, K2AV at wrote:
> > If your shack is right next to the SPG, well good. If your shack is at
> > a distance, like on an upper floor or in the "bonus room" over the
> > garage, then ground everything (this includes phone lines, cat5, etc)
> > in the shack to a common point in the shack, including a healthy
> > safety ground run to the ground at the SPG, and whatever you may be
> > using to effect an RF ground.
> OK, so how does one ground the phone lines and Cat 5 cables?  Do you need
> run them into special surge protection devices or are there grounding
> available for these?
> 73,
> Jon
> NA9D
> -------------------------------------
> Jon Ogden
> NA9D (ex: KE9NA)
> Life Member: ARRL, NRA
> Member:  AMSAT, DXCC
> "A life lived in fear is a life half lived."
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