Power line transmission current wires. Typically the current transmission mode is point to point transmission. Power line in accordance with the purpose can be divided into AC and DC power cord AC DC power cable, AC power cord is usually high voltage alternating current through the wire, such wire as the higher voltage needed uniform standards for security certification can formally produce. The DC line voltage is lower by the basic direct current security requirements and therefore there is no AC line strictly, but to be safe, or the requirements for the current national safety certification.
