Headphone plug, dc plug, audio plug, USB plug, video plug, microphone plug, charger plug, mobile phone plug, etc. Internationally, household appliances are divided into three categories:
One type: Electrical appliances refer to electrical appliances with only one layer of insulation. These appliances must be equipped with leakage protectors and grounding protection (that is, three-pin plugs). Such as air conditioners, machine tools, motors, etc.
The second category: the electrical appliance has double-layer insulation measures. To add the leakage protector, the grounding protection can be avoided (that is, the two-pin plug can be used). Such as TV, electric fan, table lamp, induction cooker, electric ceramic stove, etc.
The three categories: electrical appliances are appliances that use safe voltage, generally 12-36V electrical appliances, such as mobile phones, laptops, etc.
The power cord is a wire that carries current. Usually, the way of current transmission is point-to-point transmission. The power cable can be divided into an AC AC power cable and a DC-DC power cable according to the application. Generally, the AC power cable is a wire that passes a relatively high...
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