A method of temperature-rise assessment by extrapolation for partially type-tested assemblies (PTTA) of low-voltage switchgear and controlgear— 49 стр.
The proposed method is applicable to enclosed PTTA or partitioned sections of PTTA without forced ventilation. It is intended to determine the temperature rise of the air inside the enclosure.
29.130.20 Low. Including switchgear and controlgear assemblies / Низковольтная коммутационная аппаратура и аппаратура управления. Включая коммутационную аппаратуру и аппаратуру управления в сборе
