I'm having some problems at my new girlfriend's house. There was a extension cord that was giving shock and I changed to another. This one wasn't giving shock, but when I test it with that screwdriver that lights up a light on electricity, it lights up when touching the plastic part of the wire. The outside I mean. And it is happening with all the extension cords of the house.
What I want to know is if it is normal to the outside part of the wire to conduct correct or if maybe there is a problem with the house electrical system.
English is not my primary language, sorry for any mistakes.
Edit: on the others extensions of the house the light is on although it is very dim