04-30-2012 09:23 AM
Last week I bought a Lenovo IdeaPad Laptop with AMD Z575GM A6-3400m 1.40GHz, 4GB, 500GB, AMD Radeon HD 6520, FreeDOS, Gray.
I worry that when I power the laptop from an outlet without ground the case of the laptop (being mostly metal) "tickle" electric (easy electric me) and permanently!
I observet measured as if it were 88V AC (pretty much supply that indicator).
If I power the laptop from normal grounded outlet or it runs on battery everything is ok it does not tickle.
My question would be if this is normal (does every unit from the specified model have the same problem) or I've got a defective unit!
Sincerely Cioraneanu Florin
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04-30-2012 10:40 AM
the 88 Volts AC you've measured is harmless capacitive leakage,
in fact all modern equipment is designed to be connected to a properly grounded AC outlet only.
I don't think your Z575 is defective, otherwise it would probably blow the fuse if connected to a grounded outlet.
please also have a look at this electric tingling thread...
some more information about grounding...
good Luck... Zehn
04-30-2012 11:21 AM
Cioraneanu... if the electrical installation in your house is free from defects, the tickle is completely harmless...
but... generally and for reasons like e.g. RF Interference I advice to use properly grounded AC outlets only.