11. These plugs are rarely polarized, so you don't have to worry about the neutral wire . 12. This can happen when two worn wires, the hot and neutral wires , contact each other. 13. The currents returning from the customers'premises to the supply transformer all share the neutral wire . 14. This is why only common trip breakers must be used when neutral wire switching is needed. 15. Low-cost power strips often come with only one MOV mounted between the live and neutral wires . 16. The overloaded neutral wire can cause excessive heat. 17. The context makes it clear that points X and Z are the live and neutral wires . 18. The link holds the neutral wire at earth potential, so that only the live wire alternates. 19. The neutral wire only carries the net difference. 20. Later this design was improved by adding a third wire alongside the hot and neutral wires .
