| 城市轨道交通35kV电力电缆载流量研究 |
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| 引用本文： | 李小明.城市轨道交通35kV电力电缆载流量研究[J].电气开关,2022,60(1):51-53,56. |
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| 作者姓名： | 李小明 |
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| 作者单位： | 中交机电工程局有限公司,湖北 武汉 430061 |
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| 摘 要： | 城市轨道交通供电系统中压环网主要采用35kV电力电缆,电缆截面积决定了电缆载流量,同时电缆运行过程中能承受载流量的大小也影响到电缆选型.结合佛山地铁二号线一期工程仙石区间(仙涌站-石洲站),分析环境温度、电缆敷设方式等因素对载流量的影响.由实际工况下的电流,得出不同因素作用下该区间电缆的载流量.根据该区间段的载流量,又...
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| 关 键 词： | 城市轨道交通 电缆敷设 电缆截面 载流量 |
Research on Ampacity of 35 kV Power Cable in Urban Rail Transit |
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| LI Xiao-ming.Research on Ampacity of 35 kV Power Cable in Urban Rail Transit[J].Electric Switchgear,2022,60(1):51-53,56. |
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| Authors: | LI Xiao-ming |
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| Affiliation: | (CCCC Mechanical&Electrical Engineering Co.Ltd.,Wuhan 430061,China) |
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| Abstract: | 35kV Power cables are mainly used in the medium voltage loop network of urban rail transit power supply system.The cable cross-sectional area determines the cable ampacity,and the ampacity that the cable can withstand during operation also affects the cable selection.Combined with Xianshi section(Xianyong Shizhou station)of Foshan Metro Line 2 phase I project,the influence of environmental temperature,cable laying mode and other factors on ampacity is analyzed.According to the current under the actual working condition,the ampacity of the section cable under the action of different factors is obtained.According to the current carrying capacity of the section,it is verified that the cross-sectional area of the cable meets the actual working requirements. |
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| Keywords: | urban rail transit cable laying cable section ampacity |
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