Question about 220v for Macbook Pro

[YoYoMac]

Ok, here is my question for all of you electricty buffs out there.

I have a Macbook Pro. I teach English in China. When my mac is plugged into anything that is connected to power, my laptop shocks me. Whenever I touch the edges of the laptop with my wrists while typing, I get a good shock. When I lightly brush the laptop with my fingertips, it is vibrating. This also happened with my 17" Powerbook 2 year ago and with my friends 15" Powerbook 2 years ago.

My question is, should I be worred. I have an OWC Mercury Elite Raid Hard drive as well and it also vibrates, but not as much as the laptop.

Any thoughts?

thanks.

 

[andrewfee]

I've been told by Apple UK support that this is perfectly normal for the Powerbooks/Macbook Pros. Using the long extension cord (I believe it's grounded) rather than the short one stopped this for me, although I'll still sometimes get a shock if I'm holding a powered USB device's lead and plugging it in.

 

[YoYoMac]

I've always used the long extension cord. Ok, that makes me feel a little better.