﻿ 节能导线在交流线路工程中应用特点分析

# 节能导线在交流线路工程中应用特点分析Analysis of Application Characteristics of Energy Saving Conductor in AC Transmission Line

Abstract: By comparing the technical characteristics, sag characteristics and energy-saving effects of three kinds of energy-saving conductors, the application scenarios of each type of conductors are sum-marized and proposed, which is conducive to the promotion and application in practical projects in the future.

1. 引言

2. 节能导线的种类

Figure 1. Two kinds of metal stranding forms

Figure 2. Single material stranded form

3. 三种节能导线的技术性能分析

1) 普通导线和三种节能导线的基本参数，见表1~3

Table 1. Comparison of performance parameters of energy-saving conductor corresponding to ACSR 240/40

Table 2. Comparison of performance parameters of energy-saving conductor corresponding to ACSR 630/45

Table 3. Comparison of performance parameters of energy-saving conductor corresponding to ACSR 800/55

2) 电能损耗特点分析

Table 4. Comparison of energy saving conductor loss corresponding to ACSR 240/40

Table 5. Comparison of energy saving conductor loss corresponding to ACSR 630/45

Table 6. Comparison of energy saving conductor loss corresponding to ACSR 800/55

3) 机械性能分析

Figure 3. Comparison of sag and icing overload capacity of three kinds of energy-saving conductors with 240 specifications

Figure 4. Comparison of sag and icing overload capacity of three kinds of energy-saving conductors with 630 specifications

Figure 5. Comparison of sag and icing overload capacity of three kinds of energy-saving conductors with 800 specifications

4. 经济性分析

1) 只考虑导线的变化，杆塔均采用国家电网公司通用设计杆塔，除导线外其他部分的投资相同。

2) 输送容量均按照经济电流密度为0.9计算所得，功率因数取0.95。

3) 上网电价分别按0.2元/kw∙h、0.3元/kw∙h，0.4元/kw∙h、0.5元/kw∙h。

4) 经济使用年限取30年，施工期按两年计算，第一年投资60%，第二年投资40%；内部收益率取10%；年维护费用取静态投资的1.4%。

5) 导线最大负荷损耗小时数按3000小时计，及最大负荷利用小时数为5000小时。

6) 普通钢芯铝绞线价格取1.68万元/吨，高导电率钢芯铝绞线价格取1.9万元/吨，铝合金芯铝绞线价格取2.0万元/吨，中强度铝合金绞线价格取2.1万元/吨。

7) 典型工程条件：

240/40系列导线按照110 kV电压等级，单回路，每相双分裂；

630/45系列导线按照500 kV电压等级，双回路，每相四分裂；

800/45系列导线按照500 kV电压等级，双回路，每相四分裂。

Table 7. Comparison of annual cost of energy-saving conductor corresponding to JL/G1A-240/40 ACSR

Table 8. Comparison of annual cost of energy-saving conductor corresponding to JL/G1A-630/45 ACSR

Table 9. Comparison of annual cost of energy-saving conductor corresponding to JL/G1A-800/50 ACSR

5. 总结

[1] 顾伟. 节能导线在高压输电线路设计中的应用[J]. 集成电路应用, 2020(5): 102-103.

[2] 张端. 电力输配电线路中节能导线对工程造价的影响[J]. 科技风, 2019(35): 111.

[3] 李宇. 节能导线在输电线路中的应用探讨[J]. 科技风, 2017(19): 179

[4] 范辉, 冯砚厅, 耿江海, 闫志恒. 节能导线电能损耗特性分析及节能效果对比研究[J]. 电工材料, 2016(3): 20-24.

[5] 孙杨. 节能导线在输电线路中的节能效果分析[J]. 建材与装饰, 2016(48): 234-235.

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