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MEO Class II – MET : 2022/JUL/01 – 2021/FEB/02 – 2020/MAR/01 – 2020/FEB/02 – 2019/NOV/05 – 2019/OCT/02 – 2019/AUG/02 – 2019/JUL/01 – 2019/APR/01 – 2019/FEB/01 – 2019/JAN/03 – 2018/SEP/04 – 2018/JUN/06 – 2018/JAN/06 – 2017/FEB/06 – 2022/NOV/01 – 2015/JAN/06 – 2023/NOV/02
Question
Q1. With respect to the High Voltage power systems installation, explain the different types of circuit breaker that are used, comparing them on merits and de-merits. Describe the theory of arc phenomenon and the mechanism fitted to mitigate the arc.