KA certification refers to the safety mark of metallic and non-metallic mine products. It is a compulsory certification carried out by the National Coal Mine Safety Marking Office for non-underground coal mine supplies. All products in the mine safety certification list must obtain the certification certificate.
After obtaining KA certification, MSS intelligent fully insulated switchgear can be applied to underground central substation, bottom, total intakes and main intakes, no explosion danger of metal and nonmetal mines. Products able to give all sorts of equipment for mines and underground power supply, also can be used in the power supply of railway tunnel (iron ore, copper, gold, aluminum and other metal and non-metallic mineral places).