产品概述 Product overview 

GGD 型交流低压配电柜适用于发电厂、变电站、工矿企业等电力用户的交流 50Hz，额定工作电压 380V，额定工作电流 5000A 的配电系统，做为动力、照明及配电设备的电能转换、分配与控制之用。 

产品具有分断能力高、动热稳定性好、电气方案灵活、 组合方便、实用性强， 结构新颖、防护等级高等特点。可作为低压成套开关设备的更新换代产品使用。 

GGD 型交流低压配电柜符合 IEC439《低压成套开关设备和控制设备》，GB7251《低压成套开关设备》等标准。 

GGD type AC low voltage distribution cabinet is suitable for power distribution systems with 50Hz AC, 380V rated working voltage and 5000A rated working current for power plants, substations, industrial and mining enterprises and other power users. it is used for power conversion, distribution and control of power, lighting and distribution equipment. 

The product has the characteristics of high breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, strong practicability, novel structure, high protection level, etc. It can be used as a replacement for low-voltage switchgear. 

GGD type AC low-voltage power distribution cabinet complies with IEC439 《low-voltage complete switchgear and control equipment》 and GB7251 《low-voltage complete switchgear》 and other standards. 

正常使用环境 Normal operating environment

◇ 周围空气温度不高于 +40℃，不低于 -5℃。24h 以内的平均温度不得高于 +35℃。 

◇ 户内安装使用，使用地点的海拔高度不得超过 2000m。 

◇ 周围空气相对湿度在较高温度为 +40℃时不超过 50％，在较低温度时允许有较大的相对湿度。( 例如 +20℃时为 90％ ) 应考虑到由于温度变化可能会偶然产生凝露的影响。 

◇ 设备安装时与垂直面的倾斜度不超过 5°。 

◇ 设备应安装在无剧烈震动和冲击的地方，以及不足以使电器元件受到腐蚀的场所。 

◇ 用户有特别要求时与制造厂协商解决。 

◇ Ambient air temperature is not higher than +40℃ and not lower than -5℃ . The average temperature within 24 hours shall not be higher than+35℃ . 

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

◇ The relative humidity of ambient air shall not exceed 50% at the highest temperature of +40℃ , and a larger relative humidity is allowed at the lower temperature. (for example, 90% at +20℃ ) consideration should be given to the effect that condensation may occasionally occur due to temperature changes. 

◇ When the equipment is installed, the inclination to the vertical plane shall not exceed 5. 

◇ The equipment shall be installed in places free from severe vibration and impact, and places insufficient to corrode electrical components. 

◇ When users have special requirements, negotiate with the manufacturer to solve them.