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1.为了突出六氟化硫封闭式组合电器对环境有较强的适应性和方便用户的设计选择,将标准中的正常和特殊使用条件合并为使用环境条件。2.将户内设备的环境温度下限改为-10℃。3.原地震烈度不超过8度,改为地震烈度分为二级:一般地区的地面水平加速度为0.2g,垂直加速度为0.1g(水平与垂直加速度同时作用);强震地区的地面水平加速度为0.3g,垂直加速度为0.15g。
1. To highlight the strong adaptability of the SF6 enclosed electrical appliances to the environment and user-friendly design options, the normal and special conditions of use in the standard are combined into environmental conditions for use. 2. The indoor equipment, the lower limit of the ambient temperature changed to -10 ℃. 3. The original earthquake intensity does not exceed 8 degrees, instead of the earthquake intensity is divided into two levels: the general area of the ground horizontal acceleration of 0.2g, the vertical acceleration of 0.1g (horizontal and vertical acceleration at the same time); strong earthquake ground horizontal acceleration Is 0.3g and the vertical acceleration is 0.15g.