[Public-List] Lightning Ground

[George Dinwiddie]

Bill,

On 7/26/13 11:42 AM, Bill Boyle wrote:
> Anyone know if the mast is grounded to the keel?  If so, how?  If
> not, does anyone have thoughts on how to do that?

It's not. And given that the ballast is internal (inside the fiberglas), 
it's not grounded, either.

A couple decades ago, I did a bunch of research on lightning terminals 
and grounding. (I was also researching the topic for remote data 
collection stations.) The research is somewhat inconclusive as to 
whether it's a good idea to ground the mast, or to add a lightning 
terminal to the masthead. While some people swear by it, there are also 
anecdotes of /worse damage/ due to attempts to ground.

I could describe some of the issues that I remember, if you'd like.

  - George

-- 
  ----------------------------------------------------------------------
   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.                          also see:
                'The Middle' by Ogden Nash     http://idiacomputing.com
  ----------------------------------------------------------------------




 1374856829.0