Electrical Safety Tips

Touching electricity with wet hands is more than 10 times more dangerous than with dry hands.

Induced voltage and ghost voltage can also light up a test screwdriver; always verify with a multimeter.

If the live and neutral wires are reversed in a screw-type lamp holder, the metal shell will become live — extremely dangerous.

When disconnecting, cut off the live wire first; when wiring, connect the neutral first to avoid forming a circuit that could burn your hand.

Connecting aluminum wire directly to copper wire can easily produce sparks because the materials are different.

When measuring voltage with a multimeter, start from the highest range and then step down to avoid damaging the meter.

In a distribution box, there are two components you should not touch:

• Power factor correction capacitor
• Current transformer
  
  

Wear a safety harness when working at height, and wear insulated shoes when working on the ground.