[TowerTalk] Shack wiring

Paul Christensen w9ac at arrl.net
Sun Mar 21 13:19:18 PDT 2010


It's s joint document between ANSI and IEEE.  Apparently, it's a compendium 
of three sections in total, one of them discussing installation practices.

Paul, W9AC

----- Original Message ----- 
From: "jimlux" <jimlux at earthlink.net>
To: "Tower and HF antenna construction topics." <towertalk at contesting.com>
Sent: Sunday, March 21, 2010 4:11 PM
Subject: Re: [TowerTalk] Shack wiring


> Paul Christensen wrote:
>> I'm trying to locate a current copy of IEEE C62.41.1, "Guide on the Surge
>> Environment in Low-Voltage (1000 V and less) AC Power Circuits."  Anyone
>> know whether or not that publication recommends the use of SPDs beyond 
>> the
>> service panel on the load side of distribution up to the point of
>> receptacles?
>>
>> Paul, W9AC
>
> That looks like an ANSI number (not that IEEE isn't involved..).
> From a few googles, it looks like it defines a set of "standard
> environments" to be used as design or test requirements, rather than a
> "recommended practice".
>
> "This is a guide describing the surge voltage, surge current, and
> temporary overvoltages (TOV) environment in low-voltage [up to 1000 V
> root mean square (rms)] ac power circuits. This scope does not include
> other power disturbances, such as notches, sags, and noise. "
>
> Earlier editions in the series talk about recommended practice, but the
> recommended practice is for "testing" not "installation".
>
>
> Sort of like UL1149 describes test methods for TVSS, not performance
> requirements.
>
> For usage, Standler's book:"Protection of Electronic Circuits from
> Overvoltages" is the hot ticket.
>
> http://store.doverpublications.com/0486425525.html
>
> It's also on google books, so maybe the pages that are visible that way
> give you useful knowledge.
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