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Voltage
Jul 26, 2017

The voltage is the reason why the charge is moved to form a current. Current is able to flow in the wire, but also because the current has a high potential and low potential difference between. This difference is called the potential difference, also called voltage. In other words, the potential difference between any two points is called the voltage of these two points in the circuit. Usually the letter V represents the voltage.

The voltage can be divided into high voltage, low voltage and safe voltage.
The difference between high and low pressure is based on the voltage of the electrical equipment to ground. The ground voltage is higher than or equal to 1000 volts for high pressure. The ground voltage is less than 1000 volts for low pressure.

Where the safety voltage refers to the human body for a long time without contact with the risk of electric shock voltage.

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