A method of temperature-rise verification of low-voltage switchgear and controlgear assemblies by calculation
IDT IEC/TR 60890:2014
全国低压成套开关设备和控制设备标准化技术委员会(SAC/TC 266)
本标准规定了通过计算进行低压成套开关设备和控制设备温升验证的一种方法。这种方法适用于封闭式成套设备或者不带强迫通风的成套设备的分隔式柜架单元，不适用于GB/T 7251相关产品标准明确规定了温升验证方法的情形。注
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