high and low voltage equipment is what?

High-voltage complete equipment (high-voltage power distribution cabinet) refers to indoor and outdoor AC switchgear operating in power systems with voltages of 3KV and above and frequencies of 50Hz and below. It is mainly used for the control and protection of power systems (including power plants, substations, transmission and distribution lines, industrial and mining enterprises and other users). It can not only put some power equipment or lines into operation or withdraw from operation according to the operation needs of the power grid, but also quickly remove the faulty part from the power grid when the power equipment or lines fail, thus ensuring the normal operation of the non-faulty part of the power grid and the safety of equipment and operation and maintenance personnel. Therefore, high-voltage equipment is a very important transmission and distribution equipment, its safe and reliable operation of the power system is of great significance to the safe and effective operation.

low-voltage complete equipment refers to the complete equipment used in the voltage level of 380V and below. The latter is considered from a safety point of view, but the two are not contradictory, because in the power generation and distribution system, low-voltage electrical appliances refers to the 380V power distribution system, therefore, in actual work, low-voltage equipment refers to the electrical equipment used in the voltage level of 380V and below.