On 27/02/2014 12:48, tony sayer wrote:
In article , Peter
Crosland scribeth thus
On 24/02/2014 13:48, Uncle Peter wrote:
I've got a few cheap micromark surge protectors, and noticed they have a
clamping voltage of 650V.
Anyone know where I can get a much lower one? I've heard of protectors
as low as 270V, but I can't find any to buy.

The reality is that these surge protectors offer very little, if any,
protection against lightning strikes. A lightning strike close by can
kill your electronic equipment regardless of what protection you have.


Except that equipment at comms sites and Radio and TV transmitting
stations does survive year in year out;!...

That's as may be, but they tend to have rather better quality protection
on all their connections than a cheapie "surge protected" 13A strip with
a tuppenny MOV in it.


--
Tciao for Now!

John.