Across
- 4. this conductor connects an 'exposed conductive part' to the M.E.T
- 6. this conductor links the M.E.T to the earth electrode in a T.T system
- 7. Earth and neutral are connected here
- 8. earthing system that utilises a PEN conductor
- 9. this type of equation means 'impassable to heat'
- 11. colours identifying a protective conductor
- 12. steel conduit is this type of conductive part
- 13. this conductor can link an 'exposed conductive part' to an 'extraneous conductive part'
Down
- 1. For current to flow a ....... must exist
- 2. this conductor links incoming services to the M.E.T
- 3. By convention we take earth to be at this voltage
- 5. the ....... test spike is installed the furthest from an earth electrode under test
- 6. this type of conductive part is not part of the electrical installation however could introduce earth potential
- 10. type of earth electrode