The main breaker in the electrical room for an apartment Is off. Not power into the panel breaker. When the people touch metal knob door or other metal part into the apartment , even the contact with corners of the walls cause a zip (shock) .that zip disappear after the first contact and then suddenly happen again.
What could be the cause when everything Is disconnected from electrical room.? Also a test disconnecting the power and the neutral wire that feed that apartment was made and still shock occur.
None of the other units beside that apartment feel that shock.
Electrical – Shock on every metal part of the apartment
electrical
Related Solutions
Well, if there is something leaking current onto "ground" and that thing is connected to your metal box, and the metal box is not connected to the ground in your breaker panel, no, that's not great. I would take a multimeter, turn off the breaker to the house, and check the resistance between neutral and the box. If it is large, then they are not not bonded together at the panel, but yet something somewhere is connecting them in your house. Try using a 3-prong tester on some outlets in your house and see what results you get.
I'd pick up one of these at the hardware store:
If you're not in North America, I'm sure there's a local equivalent.
Based on the LED's that light up, you can tell if the circuit is wired correctly. The only thing it can't detect is a ground/neutral swap. But it can detect a missing ground.
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Best Answer
This sounds like a rather...static-y problem
Because the shocks take time to come back after they happen (instead of happening repeatedly every time you touch metal), this is most likely an issue with static electricity buildup, which can be due to a variety of factors, such as clothing and building materials used, ambient relative humidity, and such. It's not a sign of electrical trouble, at least, though!