Dear Student,
We should follow some precautions while handling electric devices and circuits these are-
• Do not touch any device when it is connected to the mains
• Do not use the mains as the source of energy while constructing a simple circuit
• Do not use your teeth to peel the wires.
• Do not touch switch of the electric appliance with wet hands.
• Do wear rubber gloves or rubber slippers before touching any electric appliance or switch of that appliance.
Regards