Will I get electrocuted when I am above the first floor of a building?
You are not safe from electrocution just because you are on the 3rd floor.

Electrical ground can be anything conductive (like the chassis of another grounded appliance you are leaning on). So it doesn't matter where you are but what else you are touching. 

To be safe you need to install a ground fault protection device that will shut off the power when it detects that some current doesn't go through the designated return path.