Across
- 3. open and close electric circuit
- 4. insulated conductors
- 6. addition to an outlet circuit
- 8. to make terminations
- 9. prevents leakage of currents
- 11. start of an installation
- 14. a length insulated conductors
- 15. improperly planned alteration to circuits
- 19. mechanical protection
- 20. fitting compression gland
- 21. allows connection of portable equipment
- 23. to switch from three positions
Down
- 1. disconnects appliances
- 2. good insulator
- 3. simplest switch
- 5. an assembly of devices
- 7. current carring lines of switches
- 10. gives control over many switches
- 12. old code
- 13. protective armour
- 16. connects two way switches
- 17. connect to a circuit breaker
- 18. corrosion resistant
- 19. ensures flexiblity and easy handling
- 22. new code
