Analysis of Security Risks of Electrical Switch Power-off Position
Clause 22.5 of Standard GB 4706.1 provides that The power failure of any switch in any position of an electrical appliance powered by the rated voltage does not affect the disconnection from the power supply at peak voltage[1].Due to the risk of electric shock caused by residual voltage in capacitors after a power outage,there has been ongoing controversy over the off position of switches for many years,and differences in understanding can cause safety hazards.Studied the principle of the project,the thesis combined with own experience,put forward a reasonable interpretation for reference in the industry.
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