On Mon, 8 Oct 2012 07:58:15 -0500, "HeyBub" wrote:

wrote:
On Oct 7, 4:37 pm, "HeyBub" wrote:
bud-- wrote:
On 10/6/2012 11:28 AM, gregz wrote:

The devices in the protector do not last once hit. They either
reduce capability or completely fail. One shot, blow up. MOV. Surge
protectors or anything else, are not designed to deal with a direct
lightning strike.

That is all complete nonsense.

Please refrain from confusing people with silliness:

"A varistor remains non-conductive as a shunt-mode device during
normal operation when the voltage across it remains well below its
"clamping voltage", so varistors are typically used to suppress line
voltage surges. However, a varistor may not be able to successfully
limit a very large surge from an event such as a lightning strike
where the energy involved is many orders of magnitude greater than
it can handle.

I think the issue here is that your statement that
"devices in a protector do not last once hit" is
misleading. It depends on what the rating for the
protector is versus what it is hit by.

Actually I said: "And, like a fuse, an MOV only works once (or at best a few
times)."

It's more like a fuse that increases in ampacity every time it reaches 25% of
its ratings. Perhaps not quite as useless but caution is advised.