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pcb design - Is it ok to place 220V AC traces on my Arduino PCB? - Electrical Engineering Stack Exchange
High Voltage PCB Design: Creepage and Clearance Distances for High Voltage | PCB Design Blog | Altium
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pcb design - Isolating 220V AC from low voltage DC on the PCB - Electrical Engineering Stack Exchange
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voltage - Minimum clearance between two traces that have a potential difference of 1000VDC - Electrical Engineering Stack Exchange
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