A method of temperature-rise assessment by extrapolation for partially type-test assemblies (PTTA) of low-voltage switchgear and controlgear (IEC 60890, Ed. 1.0 (1987) MOD)
低压开关设备和控制设备部分型式试验组件(PTTA)的外推温升评估方法(IEC 60890 Ed.1.0(1987)MOD)
发布日期:
2009-11-11
规定了低压开关设备和控制设备部分型式试验组件的外推温升评估方法。
Specifies method for temperature rise assessment by extrapolation for partially type test assemblies of LV switchgear and controlgear.