It's for safety. When working on a circuit, you thread a safety tag through the hole to mark the circuit so it doesn't accidentally get plugged in.
You can plug an AC computer into a DC plug only if you also have an inverter to transform the DC power into the AC power that the computer power supply expects.
The ground pin or earth pin is the uppermost pin on your plug. It's purpose is to provide a safety barrier between you and the supply in the event of an overload or in case of an accident.
The 3 pin plug is used to connect (and eventually disconnect) various devices requiring an AC power supply to and from the main power supply.As the name suggests, the 3 pin plug consists of three pins :-Longer one, usually on the top for most standard plugs : is the earth [ E ]Left pin (Usually) : is the Line connection [ L ]Right pin (Usually) : is neutral [ N ]Next to the pins, on the plug, the three pins and their respective function is given by E, L and N.
Round 2-pin; 220V AC
No, the amperage pin configurations are different between a 15 amp and a 30 amp plug.
The standard domestic electricity supply in Ireland is 230 volt AC (frequency 50hz). The most common plug used is the 13 amp three-pin plug.
The meter should be on the AC scale. In Canada and US the reading should be 240 on the outside blade holes and 120 volt from the outside blade holes to the center blade hole. The U shaped pin is the ground. No voltage from it to the center pin.
swag
drill hole in lower circular part of the ac box ubder the carpet and clean out then plug
The function of an AC plug is to connect electrical devices to a power source, typically a wall outlet. It provides a secure connection that allows electricity to flow from the power source to the device, providing the necessary power for it to operate.
The device that operates on 120V AC power requires a power cord with a standard 3-prong plug.
an AC power plug is one that utilizes AC (or alternating current) to power a device. Alternating current is different to direct current (or DC) in the way that instead of providing a direct source of power, it alternates between negative and positive. Most devices rely on Alternating current due to circuitry reasons