How Dangerous is it to swim in a pool when there is live wire in the water? What are the chances of electrocution? Take a look and you may get some ideas!
I use ALTIUM to design schematic and PCB, here’s 30% discount on the license:
https://electroboom.com/Altium (affiliate link)

For more design details, please see: http://www.electroboom.com/?p=397
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By: Mehdi Sadaghdar