BTW, the material that Jim Brown (K9YC) referenced from SurgeX is excellent.
In thinking the secondary suppressor problem through, I thought that only a
"single-mode" L-N bypass to neutral (rather than ground) would prevent a
ground potential rise between branch circuits. Those devices exist, but
apparently, they still do not provide as high degree of protection than the
technology used by SurgeX.
Also, Jim's related work on A/V power and grounding is referenced in the
SurgeX technical library. Pretty impressive, Jim! Looks like I may want to
"ditch" those expensive Leviton SPD receptacles after all...
----- Original Message -----
From: "jimlux" <email@example.com>
To: "Tower and HF antenna construction topics." <firstname.lastname@example.org>
Sent: Saturday, March 20, 2010 7:11 PM
Subject: Re: [TowerTalk] Shack wiring
> Jim Brown wrote:
>> As to the IEEE -- I have the Green Book and the Emerald Book, which are
>> Standards on Power and Grounding. Both were written before the
>> development of
>> series mode surge suppression, and neither of them considers equipment at
>> different locations that has low voltage interconnections.
> the newer Emerald books are substantially different than the older ones
> (for one thing, they don't say "sensitive electronic equipment" any
> more... the mfrs complained that they didn't want their equipment being
> thought of as "sensitive")
> IEEE 1100-2005 recommended practice for Powering and Grounding
> Electronic Equipment.
> (there might be a newer one coming out.. I think it's every 6 years or so)
> Section 4.8 is all about single point grounds, signal reference systems,
> Section 4.10 on surge suppressors is pretty sketchy, dealing only with
> the various shunt mode devices.
> I like Standler's book on this topic. he covers series mode transient
> suppression, the problems with shunt mode (e.g. inducing a transient
> after the suppressor by induction, etc.)
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