GCK (with functions equivalent to or superior to (3CL) low-voltage withdrawable switchgear (hereinafter referred to as "switchgear") is applicable to the rated working voltage of 380V, AC three-phase network cable, three-phase five wire system, as the power receiving, feeding, reactive power compensation, electric energy metering, lighting and centralized motor control in power plants, substations, industrial and mining enterprises and high-rise buildings of the power system.

This product complies with GB7251 Low voltage Switchgear and Control Equipment, JB/T9661 Low voltage Drawout Switchgear and IEC439 Low voltage Switchgear and Control Equipment.

1. Altitude: 2000m and below.

2. Ambient temperature: - 5 ℃~+40 ℃, daily average temperature is not higher than+35 ℃.

3. Relative humidity: no more than 50% at+40 ℃; Higher relative humidity is allowed when the temperature is low, which may cause occasional condensation; For example, 90% at+20 ℃.

4. Places without fire, explosion, serious pollution, chemical corrosion and violent vibration.

5. The inclination to the vertical plane shall not exceed 5 °.

6. It is applicable to the transportation and storage process at the following temperatures: - 25 ℃~+55 ℃, not more than+70 ℃ in a short time (not more than 24h).

7. If the above use conditions cannot be met, the user shall propose to the company when ordering and solve the problem through negotiation.