【摘要】 在高海拔地区运行的电力机车,由于使用地点的气压低,机车内发热部件的散热、绝缘等性能受到了不良影响,因此对其发热部件的温升限值及各部件的绝缘耐受电压值要作相应的修正。而对与试验处于同一海拔高度运行的电力机车,则温升限值可以不作修正,各部件的绝缘耐受电压值不受此限制。更多还原

【Abstract】 The air pressure in high altitude is low,this factor has a bad effect on the cooling and insulation of electric locomotive used in these places.When the running and tested places of electric locomotive are different,the maximum of temperature raise and the insulation voltage must be modified exactly.However,if running and tested locomotives are at the same height, the maximum of temperature raise needs not be modified,but the insulation voltage isn’t impacted.更多还原