产品概述 Product overview

KYN28A-12 型户内交流金属铠装中置式开关设备。 它适用于三相交流额定电压 12kV，额定频率 50Hz 电力系统，用于接受和分配电能并对电路实行控制、保护及监测。 

符合标准： 

GB3906-2006《3.6~40.5kV 交流金属封闭开关设备和控制设备》 

GB11022-89 《高压开关设备通用技术条件》 

IEC298(1990) 《额定电压 1kV 以上 50kV 及以下交流金属封闭开关设备和控制设备》 

DL404-97《户内交流高压开关柜订货技术条件》

KYN28A-12 Indoor AC Metal Armored Intermediate Switch Equipment. It is suitable for three-phase AC power system with rated voltage of 12kV and rated frequency of 50Hz. It is used for receiving and distributing electric energy and controlling, protecting and monitoring circuits. 

Meet the standard: 

GB3906-2006《3.6 ~ 40.5 kV AC Metal Enclosed Switchgear and Control Equipment》 

GB11022-89 《General Technical Conditions for High Voltage Switchgear》 

IEC298(1990) 《AC Metal Enclosed Switchgear and Control Equipment with Rated Voltage Above 1kV and Below 50kV》 

DL404-97 《Technical Conditions for Ordering Indoor AC High Voltage Switchgear》

正常使用环境 Normal operating environment

◇ 周围空气温度：最高温度 +40℃。最低温度 -15℃。 

◇ 相对湿度：日平均相对湿度：≤ 95%；日平均水蒸气压力不超过 2.2KPa; 月平均相对湿度：≤ 90%；月平均水蒸气力不超过 1.8KPa； 

◇ 海拔高度：1000m 以下。 

◇ 地震烈度：不超过 8 度。 

◇ 周围空气应不受腐蚀性或可燃气体、水蒸气等明显污染。 

◇ 无剧烈振动场所。 

◇ 超出 GB3906 规定的正常条件下使用时，由用户和本公司协商。 

◇ Ambient air temperature: maximum temperature +40℃ . Minimum temperature -15℃ . 

◇ Relative humidity: daily average relative humidity: ≤ 95%; The daily average water vapor pressure shall not exceed 2.2KPa; 

Monthly average relative humidity: ≤ 90%; The monthly mean water vapor force is not over 1.8KPa；; 

◇ altitude: below 1000m m. 

◇ Earthquake intensity: no more than 8 degrees. 

◇ Ambient air shall not be obviously polluted by corrosive or flammable gases, water vapor, etc. 

◇ No violent vibration place. 

◇ If it is used under normal conditions beyond GB3906, the user shall negotiate with the company.