[Elecraft] Lightning in New Mexico

[David Christ]

It is a pity that the NEC is so expensive ($85 list $67 Amazon) and 
changes with revisions every three years.  It is a book that should 
be on a lot of amateur's bookshelves.  Not always easy reading but is 
very carefully written and defines best practices.  Interestingly 
enough it is published by the National Fire Protection Association 
(NFPA).  Insurance companies are not interested in paying out so they 
want things to be done safely.  This is a good example of industry 
and government cooperation.  The industry experts figure out what is 
best and safest.  The government makes people pay attention.  My son 
and I had a lot of fun taking NEC rules and discussing not the rule 
but the reason the rule was there.  Guess we were a couple of nerds. 
But the rules were not arbitrary.  There was always a safety related 
reason.


David K0LUM

At 10:54 AM -0700 3/29/11, Jim Brown wrote:
>On 3/29/2011 9:20 AM, Dave, W8OV wrote:
>>  So I asked them yesterday if there was any bonding of that rod to
>>  the ground on the entrance panel side of the house.  The response was
>>  "They are not bonded.  That ground rod is not a system ground and does
>>  not need to be bonded to the existing grounding system.  It is purely
>>  for lightning protection."
>
>Tell them to study Section 250 of the NEC.  A bond between their rod and
>the mains power system ground is absolutely required, both by the NEC
>and the LAWS of PHYSICS!
>
>73, Jim K9YC
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