1.Product Features
The GGD type AC low-voltage distribution cabinet was a technological development project initiated in 1991 by the former Ministry of Energy, aiming to promote technological advancement in China's low-voltage distribution industry and accelerate the upgrade of low-voltage switchgear assemblies. The project was designed and developed by the Joint Design and Development Group for Low-Voltage Switchgear Assemblies under the Ministry of Energy, and passed the ministerial-level appraisal hosted by the Ministry of Energy in October 1992. It has since been widely used across the country.
2.Product Model and Meaning
3.Operating Conditions
1.The ambient air temperature shall not be higher than +40°C or lower than -5°C. The average temperature over any 24-hour period shall not exceed +35°C.
2.The equipment shall be installed indoors, and the altitude of the installation site shall not exceed 2000 meters.
3.The relative humidity of ambient air shall not exceed 50% at the maximum temperature of +40°C. Higher relative humidity is allowed at lower temperatures (e.g., 90% relative humidity at +20°C). However, allowance shall be made for occasional condensation caused by temperature fluctuations.
4.The tilt angle of the equipment relative to the vertical plane during installation shall not exceed 5°.
5.The equipment shall be installed in locations free from severe vibration, impact, and corrosive substances that may damage electrical components.
6.Any special requirements from the user can be resolved through consultation with the manufacturer.
4.Electrical Performance
