GGD AC LV Switchgear satisfies the requirements of standards of GB7251.1, JB/T5877 and IEC439-1, and is adapted to the power system of 380-660V, 3-phase AC 50-60Hz, used for no-load compensation and distribution and electromotor controlling, indoor use.

◆ The ambient temperature should be not higher than +40℃, not lower than -5℃. The average temperature during 24 hours should be not higher than +35℃;

◆ Latitude should not be over 2000m;

◆ The relative humidity of ambient air should be not more than 50% when the highest temperature is +40℃. The relative high humidity is allowed in lower temperature. (For example, 90% when +20℃);

◆ Gradient between the equipment and vertical side should be no higher than 5°during installation;

◆ Cabinet should be installed at sites with no fierce shaking and impacts, and at places to avoid electric component from erodent.

◆ Users may negotiate with the manufacturer when special requirements.

 

There are 129 designs to main loop of GGD cabinet, with total 298 specifications. ( Not include schemes and specs derived by functional changes of auxiliary loop and change of controlling voltage.)