How to solve an equation to Joules?

[Dionne]

Trying to determine the level of surge protection required from either lightning strike or neutral loss. If a "typical lightning strike" is 10,000 amps.....will a 2000+ Joules do the trick?

I'm having problems. Lost a puter to metldown from a power surge that melted the "surge protector".

We must have a least one electrical engineer in here. Someone give me the answer with an explanation.

As an incentive...with a good answer...I'll buy donuts tomorrow and send the money to Frank.

[MGC]

I don't think anything can protect you from a direct hit. We unplug everything electronic when lightning is around or forecast. I know it is a big pain but we have never had a lightning related failure of any sort...knock on wood.......MGC

[DanKellFla]

I am a Mechanical Engineed, so take this with a grain of salt. From what I know, you can't protect your home from a lightning strike without spending big bucks. Really really big bucks. That is why only big companies make that kind of investment.