The KYN61 type indoor armoured removable switchgear isin compliance with the requirements of standards such asGB3906, GB/T11022, IEC60298, and DL/T404D. It is suitablefor use in 3.6-12kV AC three-phase 50Hz single-bus sectioning power systems, serving to accept and distribute electrical energy and to control, protect, and detect circuits. Thisproduct is designed for indoor use. Usage environment 1.Lower than 3,000 meters in elevation.2.Environmental temperature: +40°C as maximum, -40°C as minimum.3.Relative humidity: daily average value no higher than 95%,monthly average value no higher than 90%.4.There is no frequent severe vibration.