Across
- 2. the material used for a earth rod within a TT system
- 4. a cable used to transmit digital pulses of light
- 6. this earthing system has the neutral and earth combined
- 8. a simplified drawing showing the physical circuit
- 10. these regulations are the law
- 12. a rectangular casing for cables
- 13. this is used for cable insulation
- 14. the switching system used on a stairs
- 15. this type of conduit has strong mechanical protection
- 16. sockets are normally wired this way
Down
- 1. boxes are used to show the sequnce of control
- 3. this cable can withstand very high temperatures
- 5. this type of cable support system shares its name with a food carrier
- 6. the cable most used for a domestic installation
- 7. a pvc round containment for cables
- 9. the Mcb size for a lighting circuit
- 11. 110v plugs are this colour
- 12. cable can be clipped or tied to this cable support