electrical safety

4. A portable tool used by engineers, often electrically operated.
5. Condition where excessive current flows through a circuit, potentially causing damage.
10. Testing procedure to ensure portable appliances are safe.
11. A safety measure to prevent users from electric shock by discharging current.
12. A hazard that could result from electrical faults in certain environments.
15. Breaker that protects against overload in electrical circuits.
17. Process of connecting metal components to prevent electric shock.
19. A tool with a percussive action used to drill into hard materials.
20. The potential for electrical hazards that could cause harm.

1. The unbroken flow of electrical current in a circuit.
2. A connection point to plug in electrical devices.
3. The potential difference measured in volts.
6. Material that allows the flow of electrical current.
7. Source of portable electrical power for tools without mains power.
8. Material used to prevent electrical conduction.
9. A safety device that prevents overcurrent in electrical circuits.
13. Device that disconnects a circuit if it detects an imbalance in current flow.
14. The procedure to disconnect electrical equipment safely.
16. Wires used to carry electrical current between devices.
18. Device used to step down voltage from 230V to 110V.