[RE-wrenches] Delta LAs

Joel Davidson joel.davidson at sbcglobal.net
Fri Sep 17 18:26:06 PDT 2010


Wrenches,

Allan Sindelar's 2003 RE-Wrenches lightning discussion compilation was a keeper. Email me off-list for a copy. (Thank you Allan).

Joel Davidson
  ----- Original Message ----- 
  From: August Goers 
  To: RE-wrenches 
  Sent: Tuesday, September 14, 2010 6:00 PM
  Subject: Re: [RE-wrenches] Delta LAs


  Jay - 

  I can see that point, but does that really effect insurance payout? It seems like one could argue that a properly installed system with proper grounding inspected by a building official has a lot more clout than and little grey cylinder next to the inverter or disconnect.

  Please all wrenches, correct me if I'm wrong but I can't remember a single time when there was a post about an actual lightning strike and a lightning arrestor actually doing its job - meaning that an arrestor took a hit and protected the array and or inverter. I've heard plenty of stories about blown lightning arrestors and good equipment but no one seems to know what caused the situation. It might be that lightning is hard to track and I agree with that. And lightning might have been the cause. It would be great to track lightning-fried installations to see what happened and what could be fixed. If lightning arrestors are the solution then by all means we should install them. Most of the time I think that proper grounding is the solution although I wish that field experience would prove the point. 

  What do you think?

  -A


  On Tue, Sep 14, 2010 at 5:28 PM, jay peltz <jay at asis.com> wrote:

    I also live in a area without much lightning, however I install one in most systems for the simple reason of insurance.
    If there is lightning damage, the insurance company can't use that as a way to not pay any claims.
    ie cheap insurance.

    jay

    peltz power

    On Sep 14, 2010, at 8:39 AM, August Goers wrote:

    > All -
    >
    > I guess my thought is a little off topic, but are lightning arrestors even worth using at all? My logic has always been that if lightning does indeed strike that it's likely going to blow the arrestor and and inverter. We don't have much of a lightning issue issue in the Bay Area so I don't have any direct experience.
    >
    > Best,
    >
    > August
    >


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  -- 
  August Goers
  VP, Engineering

  Luminalt Energy Corporation
  1320 Potrero Avenue
  San Francisco, CA 94110
  O: 415.641.4000
  M: 415.559.1525
  august at luminalt.com



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