Product overview

GGD AC low-voltage power distribution cabinet is a technological progress development project issued by the Ministry of Energy in 1991 with the aim of promoting technological progress in China's low-voltage power distribution industry and accelerating the upgrading of low-voltage power distribution complete sets of switchgear. The Ministry of Energy's Joint Design and Development Group (NLS) for Low-voltage Switchgear Completed the design and development, and passed the ministerial appraisal presided over by the Ministry of Energy in October 1992. At present, it has been widely used nationwide. GGD AC low-voltage power distribution cabinet is suitable for power plants, substations, factories and mines and other power users AC 50Hz, rated working voltage 380V, rated working current 3150A power distribution system, as power, lighting and power distribution equipment, power conversion, distribution and control purposes. The product is a new type of low-voltage power distribution cabinet designed according to the requirements of the Ministry of Energy, the majority of power users and the design department, based on the principles of safety, economy, rationality and reliability. The product has the characteristics of high breaking capacity, good dynamic thermal stability, flexible power scheme, convenient combination, series, strong practicability, novel structure and high protection level. Can be used as a low-voltage switchgear replacement products.

The product conforms to IEC439 "low-voltage switchgear and control equipment", GB7251 "low-voltage equipment" and other standards.

Model and meaning

Use of environmental conditions

◆ 1. The ambient air temperature shall not be higher than 40 ℃ and not lower than -5 ℃. The average temperature within 24h shall not be higher than 35 ℃.

◆ 2. For indoor installation and use, the altitude of the use place shall not exceed 2000m.

◆ 3. The relative humidity of the surrounding air shall not exceed 50% when the maximum temperature is +40 ℃, and a larger relative humidity is allowed when the temperature is lower. (For example, 90% at +20°C) It should be considered that the effect of frost may occur accidentally due to temperature changes.

◆ 4. The inclination of the equipment to the vertical plane during installation shall not exceed 5%.

◆ 5. When the equipment is installed, there is no severe vibration and impact, and the place where the electrical components are corroded due to insufficient.

◆ 6, if there are special requirements, indicate in advance.