On Thu, 24 Aug 2017 18:41:50 -0700 (PDT), Uncle Monster
wrote:

On Thursday, August 24, 2017 at 7:10:24 PM UTC-5, wrote:
On Fri, 25 Aug 2017 00:16:12 +0100, "James Wilkinson Sword"
wrote:

On Tue, 22 Aug 2017 04:00:37 +0100, Unquestionably Confused wrote:

Lightning "protectors"/surge arrestors are part and parcel of a good
UPS. Two birds for the price of one.

But you just said lightning blows them up.

I have never lost one to lightning but I have good primary protection
on the house. I have never lost anything and we have ass kicking
thunderstorms just about every day, all summer long.
Florida is the lightning capital of the world. Lightning protection is
really more than a few protectors tho.


I remember reading about the DOE or DOD doing research that showed cascading surge protection on power systems would protect equipment from damage due to lightning or EMP. They start where the power enters the building then all the distribution panels down to the individual pieces of electronic gear. The power company here will provide a meter base surge arrester if a customer orders it from them. I don't know the specifics on what the power company charges for it or what they guarantee it will protect but I've seen on Amazon where you can purchase your own. I'd think that down there in flashy Floridastan everyone would have a meter base surge arrester. ?(?)?

[8~{} Uncle Surging Monster

I have a panel protector on the main and another one on the sub that
runs the house. Then I have individual protectors on the equipment
that uses multiple inputs that sinks them all to a common ground
point. I also have a very good grounding electrode system that
includes an in ground pool, the foundation rebar and all of the steel
in the deck slabs along with a bunch of rods all bonded together with
fat copper (2 ga).