Between the primary and secondary windings of the (electrical) power transformer with a working voltage less than 50 V, there should be a sort of insulation equivalent to double insulation or reinforced insulation.
Between the primary and secondary windings of the (electrical) power transformer with a working voltage less than 50 V, there should be a sort of insulation equivalent to double insulation or reinforced insulation.
工作电压不大于50V的电源变压器的初、次级绕组间应采用相当于双重绝缘或加强绝缘水平的绝缘隔离。