CBSE Class 10 Answered
earthing
Asked by | 17 Jul, 2008, 01:55: PM
Expert Answer
A protective earth (PE) connection ensures that all exposed conductive surfaces are at the same electrical potential as the surface of the Earth, to avoid the risk of electrical shock if a person touches a device in which an insulation fault has occurred. It ensures that in the case of an insulation fault (a "short circuit"), a very high current flows, which will trigger an overcurrent protection device (fuse, circuit breaker) that disconnects the power supply
Answered by | 17 Jul, 2008, 08:04: PM
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