Electrical Safety

3. a mechanical switching device which, in the open position, complies with the requirements specified for the isolating function.
6. a conductor of an ac/dc system for the transmission of electrical energy other than a neutral conductor or a protective conductor
8. a device which by the melting of one or more of its specifically designed and proportioned components, opens the circuit in which it is inserted.
10. a mechanical switching device or association of devices intended to cause the opening of the contacts when the residual current attains a given value under specific conditions
12. a system having one or more points of the source of energy directly earthed, the exposed conductive-parts of the installation being connected to that point by protective conductors
13. a current exceeding the rated value

1. an over current resulting from a fault of negligible impedance between live conductors having a difference in potential under normal operating conditions
2. a device capable of making, carrying and breaking normal load currents and also making and automatically breaking, under predetermined conditions, abnormal currents such as short circuit currents
4. a part providing a defined degree of protection against contact with live parts from any usual direction of access
5. a circuit condition in which current flows through an abnormal or unintended path
6. In exceptional cases where there is a need of working on equipment where associate is exposed to hazardous energy, a formal request for approval is known as?
7. a protective conductor providing equipotential bonding
9. conductive part, which may be embedded in the soil or in a specific conductive medium, eg concrete
11. a part of a enclosed wiring system for cables in electrical installations, allowing them to be drawn in and/or replaced, but not inserted laterally