(1) For AC power supply, the minimum safety distance between the two wires before the fuse is not less than 6MM, and the minimum safety distance between the two wires and the housing or the ground inside the machine is not less than 8MM. (2) The wiring requirements after the fuse: the minimum creepage distance between the zero and live wires is not less than 3MM. (3) The minimum creepage distance between the high-voltage area and the low-voltage area is not less than 8MM. If it is less than 8MM or equal to 8MM, a 2MM safety groove must be opened. (4) The high-voltage area must have a silk screen of the high-voltage warning mark, that is, a triangular symbol with an exclamation mark; the high-voltage area must be framed with silk screen, and the silk screen frame must be not less than 3MM wide. (5) The minimum safety distance between the positive and negative of the high-voltage rectifier and filter is not less than 2MM.
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