A, and PGL-1/2 type low electric Exchange distribution screen applies Yu to power plant, and substation, and mines enterprise, can as Exchange 50Hz rated work voltage, and has over 380V of low pressure distribution system in the of power, and distribution and the lighting of with. this products structure reasonable, and circuit device security, and protective sex good, and move hot stability good, and run security reliable, points broken capacity high. this products by ISO9001:2000, and country 3C, certification, quality reliable.