10 Jun
2011
10 Jun
'11
5:41 p.m.
On Fri, 2011-06-10 at 16:57 +0200, Jeremy Jongepier wrote:
On 06/10/2011 04:39 PM, Ralf Mardorf wrote:
DIN VDE
First of three stages for the end-user
residual voltage max. 4000 V
50/100 kA
10/350 µs
Second stage
residual voltage 600 bis 2000 V
Last stage
Consumer wall socket protection is helpful, but even when there are
stage one and two, they don't protect good.
So supermarket gear is more or less useless and completely useless,
without stage one and two.
The device of your link seems to be a professional, good protection,
when there are stage one and two, before your device is connected.
IIUC without pre-protection even a professional device for the third
stage is useless.
This is my understanding, no knowledge.
Regards,
Ralf
Does anybody know if there's a way to protect
equipment against damages
by lightning when there are no pre-protections?
With the band we use a Furman power conditioner:
http://www.furmansound.com/product.php?div=03&id=M-10xE
Not sure though how it holds when lightning strikes though, never tested
it ;)