GGD type low voltage distribution equipment is applicable to power generating plants, power substations, factories and other enterprises, used in distribution system with service voltage of 380V A. C., 50Hz and operating current low 3150A, serving the function of change-over, distribution and control of electrical energy for power, lighting and distribution equipment. The distribution equipment is designed to be a new version low voltage distribution cubicle in terms of the requirements of the Ministry of Power Resources, users and designing units, based on safety, efficiency, rationality and reliability. The equipment is characterized by high breaking capacity, excellent dynamo-thermal stability, flexible electrical schemes, convenient combination, seriation, up-to-date structure and high degree of protection etc. So the equipment can be used for changing products of low voltage switchgear and assembly. The equipment conforms to IEC439 and Chinese National Standard (CNS) GB 7251.1-97 Low Voltage Switchgear and Controlgear Assemblies as well as other standards.