变电所大截面设备线夹技

1、 变电站液压型设备线夹技术条件 2007 - 04-01发布 200 7- 05-25实施浙江省电力公司 发布目 次前言 1 范围 12 规范性引用文件 13 型式尺寸 14 技术要求 245 试验及验收 256 标志、包装与运输 277 安装注意事项 28附录A（资料性附录） GB 1179新旧标准钢芯铝绞线对比表 29参考文献 30前 言为了提高、完善变电站液压型设备线夹的应用技术，保障电网安全运行，结合浙江电网的实际情况，特制定本标准。本标准的附录A为资料性附录。本标准由浙江省电力公司生产部提出。本标准由浙江省电力公司科技信息部归口。本标准起草单位：浙江省电力公司、浙江电力教育培训中心、

2、浙江省送变电工程公司、浙江省电力设计院、浙江电力建设监理有限公司。本标准主要起草人：包建强、余虹云、杨卫民、李瑞、李祥、丁建阳、李君斌、徐彬。本标准由浙江省电力公司生产部负责解释。变电站液压型设备线夹技术条件1 范围本标准规定了变电站配电装置中，母线引下线与电气设备（如变压器、断路器、互感器、隔离开关、穿墙套管等）、电气设备间连接用液压型设备线夹的技术要求、试验及验收、标志、包装与运输。本标准适用于浙江电网变电站用液压型设备线夹的选择、验收和应用（发电厂升压站可参照执行）。2 规范性引用文件 下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单（不包括勘

3、误的内容）或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GB 2314 电力金具 通用技术条件GB/T 2317.1 电力金具 机械试验方法GB/T 2317.3 电力金具 热循环试验方法GB/T 2317.4 电力金具 验收规则、标志与包装GB/T 3190 变形铝及铝合金化学成分GB/T 5231 加工铜及铜合金化学成分和产品形状GB/T 6987 铝及铝合金化学分析方法3 型式尺寸3.1 变电站液压型设备线夹按材料分为铝设备线夹和铜铝过渡设备线夹两大类。3.2 表中型号字母意义为：S设备；Y液

4、压；G过渡。附加字母为：K扩径空芯；N耐热；Q轻型；A0°；B30°；C45°；D90°。附加数字：2×300/200 D，表示双导线，导线规格为300，导线分裂间距200；-1、-2、-3、-4、-5，表示线夹端子尺寸，见表1。表1 线夹端子尺寸附加数字-1-2-3-4-5线夹端子尺寸a×L100 mm×100 mm120 mm×120 mm125 mm×125 mm150 mm×150 mm320 mm×120 mm3.3 铝设备线夹3.3.1 铝设备线夹按结构形式分单母线和双母线

5、两种系列。3.3.2 铝设备线夹按引下线与安装电气设备端子所成角度的不同，分0°、30°、45°、90°四种规格。3.3.3 铝设备线夹的形状及主要尺寸如图19和表213所示。3.3.3.1 0°单母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图1和表2的规定。图1 0°单母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表2 0°单母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLL1DdSY-300/15A图1JL/G1A-296.88-42/723.01631610

6、01104024.5SY-300/20AJL/G1A-303.42-45/723.4325.0SY-300/25AJL/G1A-306.21-48/723.7625.5SY-300/40AJL/G1A-300.09-24/723.9425.5SY-400/20AJL/G1A-406.40-42/726.9163161001204528.5SY-400/25AJL/G1A-391.91-45/726.6428.5SY-400/35AJL/G1A-390.88-48/726.8228.5SY-400/50AJL/G1A-399.72-54/727.6329.5SY-400/65AJL/G1A-39

7、8.94-26/728.0029.5SY-500/35AJL/G1A-497.01-45/730.0080161001305231.5SY-500/45AJL/G1A-488.58-48/730.0031.5SY-500/65AJL/G1A-501.88-54/730.9632.5SY-630/45AJL/G1A-623.45-45/733.60100201001506035.5SY-630/55AJL/G1A-639.92-48/734.3236.0SY-630/80AJL/G1A-635.19-54/1934.8236.5SY-800/55AJL/G1A-814.30-45/738.401

8、25221251706540.0SY-800/70AJL/G1A-808.15-48/738.5840.5SY-800/100AJL/G1A-795.17-54/1938.9840.53.3.3.2 30°单母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图2和表3的规定。图2 30°单母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表3 30°单母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLL1DdSY-300/15B图2JL/G1A-296.88-42/723.0163161001104024.5SY-

9、300/20BJL/G1A-303.42-45/723.4325.0SY-300/25BJL/G1A-306.21-48/723.7625.5SY-300/40BJL/G1A-300.09-24/723.9425.5SY-400/20BJL/G1A-406.40-42/726.9163161001204528.5SY-400/25BJL/G1A-391.91-45/726.6428.5SY-400/35BJL/G1A-390.88-48/726.8228.5SY-400/50BJL/G1A-399.72-54/727.6329.5SY-400/65BJL/G1A-398.94-26/728.0

10、029.5SY-500/35BJL/G1A-497.01-45/730.0080161001305231.5SY-500/45BJL/G1A-488.58-48/730.0031.5SY-500/65BJL/G1A-501.88-54/730.9632.5SY-630/45BJL/G1A-623.45-45/733.60100201001506035.5SY-630/55BJL/G1A-639.92-48/734.3236.0SY-630/80BJL/G1A-635.19-54/1934.8236.5SY-800/55BJL/G1A-814.30-45/738.4012522125170654

11、0.0SY-800/70BJL/G1A-808.15-48/738.5840.5SY-800/100BJL/G1A-795.17-54/1938.9840.53.3.3.3 90°单母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图3和表4的规定。图3 90°单母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表4 90°单母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLL1DdSY-300/15D图3JL/G1A-296.88-42/723.0163161001454024.5SY-300/20DJL/G1A

12、-303.42-45/723.4325.0SY-300/25DJL/G1A-306.21-48/723.7625.5SY-300/40DJL/G1A-300.09-24/723.9425.5SY-400/20DJL/G1A-406.40-42/726.9163161001554528.5SY-400/25DJL/G1A-391.91-45/726.6428.5SY-400/35DJL/G1A-390.88-48/726.8228.5SY-400/50DJL/G1A-399.72-54/727.6329.5SY-400/65DJL/G1A-398.94-26/728.0029.5SY-500/3

13、5DJL/G1A-497.01-45/730.0080161001655231.5SY-500/45DJL/G1A-488.58-48/730.0031.5SY-500/65DJL/G1A-501.88-54/730.9632.5SY-630/45DJL/G1A-623.45-45/733.60100201001856035.5SY-630/55DJL/G1A-639.92-48/734.3236.0SY-630/80DJL/G1A-635.19-54/1934.8236.5SY-800/55DJL/G1A-814.30-45/738.40125221252106540.0SY-800/70D

14、JL/G1A-808.15-48/738.5840.5SY-800/100DJL/G1A-795.17-54/1938.9840.53.3.3.4 单母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK、特轻型钢芯铝绞线LGJQT、耐热钢芯铝合金绞线NAHLGJQ）铝设备线夹应符合图4和表57的规定。图4 单母线(金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK、特轻型钢芯铝绞线LGJQT、耐热钢芯铝合金绞线NAHLGJQ)铝设备线夹结构示意图表5 单母线(金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK)铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号a

15、bL L1DdSY-600KA-2图4LGKK-600(带芯棒)LGJK-1000LGJK-1250LGJK-14000°120221202007653SY-600KB-230°22SY-600KC-245°26SY-600KD-290°30SY-600KA-40°150221502007653SY-600KB-430°22SY-600KC-445°26SY-600KD-490°30SY-900KA-3LGKK-900(带芯棒)LGJK-630 LGJK-8000°125221252007551SY-90

16、0KB-330°22SY-900KC-345°26SY-900KD-390°30SY-1400KA-4LGKK-1400(带芯棒)0°150221502408359SY-1400KB-430°22SY-1400KC-445°26SY-1400KD-490°30表6 单母线(特轻型钢芯铝绞线LGJQT)铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLL1DdSY-1400QA-3图4LGJQT-14000°125221252007653SY-1400QB-330°22SY-1400QC-3

17、45°26SY-1400QD-390°30SY-1400QA-40°150221502007653SY-1400QB-430°22SY-1400QC-445°26SY-1400QD-490°30表7 单母线(耐热钢芯铝合金绞线NAHLGJQ)铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLL1DdSY-1440NA-3图4NAHLGJQ-14400°125221252408053SY-1440NB-330°22SY-1440NC-345°26SY-1440ND-390°30SY

18、-1440NA-40°150221502408053SY-1440NB-430°22SY-1440NC-445°26SY-1440ND-490°303.3.3.5 单母线（金属软管支撑扩径导线LGKK、特轻型钢芯铝绞线LGJQT）平行型铝设备线夹应符合图5和表8的规定。图5 单母线（金属软管支撑扩径导线LGKK、特轻型钢芯铝绞线LGJQT）平行型铝设备线夹结构示意图表8 单母线（金属软管支撑扩径导线LGKK、特轻型钢芯铝绞线LGJQT）平行型铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号a bLHDdSY-600KA-4图5LGKK-600

19、(带芯棒)150251501857653SY-900KA-4LGKK-900(带芯棒)150251501857551SY-1400KA-4LGJQT-1400150251501857653SY-1400KA-4LGJQT-1400150251508576533.3.3.6 0° 双母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图6和表9的规定。图6 0° 双母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表9 0° 双母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLHDdSY-2×300/200A

20、图6JL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221202004025.5SY-2×400/200AJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221402004529.5SY-2×500/200AJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221602005032.0SY-2&#

21、215;300/400AJL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221204004025.5SY-2×400/400AJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221404004529.5SY-2×500/400AJL/G1A-497.01-45/7JL/G1A-488.58-48/730.001402216040050

22、32.03.3.3.7 30°双母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图7和表10的规定。图7 30°双母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表10 30°双母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLHDdSY-2×300/200B图7JL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221202004025.5SY-2×400/200BJL/G

23、1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221402004529.5SY-2×500/200BJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221602005032.0SY-2×300/400BJL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221204004025.5SY-2×40

24、0/400BJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221404004529.5SY-2×500/400BJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221604005032.03.3.3.8 90° 双母线（钢芯铝绞线JL/G1A）铝设备线夹应符合图8和表11的规定。图8 90° 双母线（钢芯铝绞线JL/G1A）铝设备线夹结构示意图表11 90° 双母线（钢芯铝绞线JL/G1A）铝

25、设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLHDdSY-2×300/200D图8JL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221202004025.5SY-2×400/200DJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221402004529.5SY-2×500/200DJL/G1A-

26、497.01-45/7JL/G1A-488.58-48/730.00140221602005032.0SY-2×300/400DJL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221204004025.5SY-2×400/400DJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221404004529.5SY-2×500/4

27、00DJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221604005032.03.3.3.9 双母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK、特轻型钢芯铝绞线LGJQT）铝设备线夹应符合图9和表1213的规定。图9 双母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK、特轻型钢芯铝绞线LGJQT）铝设备线夹结构示意图表12 双母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLHDdSY-2×600KA-1图9LGKK-600(带芯棒

28、)LGJK-1000LGJK-1250LGJK-1400100221004007653SY-2×600KB-122SY-2×600KC-126SY-2×600KD-130SY-2×600KA-2120221207653SY-2×600KB-222SY-2×600KC-226SY-2×600KD-230SY-2×600KA-4150221507653SY-2×600KB-422SY-2×600KC-426SY-2×600KD-430SY-2×600KA-532022120765

29、3SY-2×600KB-522SY-2×600KC-526SY-2×600KD-530SY-2×900KA-1LGKK-900(带芯棒)LGJK-630 LGJK-800100221007551SY-2×900KB-122SY-2×900KC-126SY-2×900KD-130SY-2×900KA-2120221207551SY-2×900KB-222SY-2×900KC-226SY-2×900KD-230SY-2×900KA-4150221507551SY-2×9

30、00KB-422SY-2×900KC-426SY-2×900KD-430SY-2×900KA-5320221207551SY-2×900KB-522SY-2×900KC-526SY-2×900KD-530表13 双母线（特轻型钢芯铝绞线LGJQT）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLHDdSY-2×1400QA-1图9LGJQT-1400100221004007653SY-2×1400QB-122SY-2×1400QC-126SY-2×1400QD-130SY-2&

31、#215;1400QA-212022120SY-2×1400QB-222SY-2×1400QC-226SY-2×1400QD-230SY-2×1400QA-415022150SY-2×1400QB-422SY-2×1400QC-426SY-2×1400QD-430SY-2×1400QA-532022120SY-2×1400QB-522SY-2×1400QC-526SY-2×1400QD-5303.4 铜铝过渡设备线夹3.4.1 铜铝过渡设备线夹按结构形式分单母线和双母线两种系列。3.4

32、.2 铜铝过渡设备线夹按引下线与安装电气设备端子所成角度的不同，分0°、30°、45°、90°四种规格。3.4.3 铜铝过渡设备线夹的形状及主要尺寸如图1017和表1424所示。3.4.3.1 0°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹应符合图10和表14的规定。图10 0°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹结构示意图表14 0°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLL1DdSYG-300/15A图10JL/G1A-296.88

33、-42/723.0163101001104024.5SYG-300/20AJL/G1A-303.42-45/723.4325.0SYG-300/25AJL/G1A-306.21-48/723.7625.5SYG-300/40AJL/G1A-300.09-24/723.9425.5SYG-400/20AJL/G1A-406.40-42/726.9163101001204528.5SYG-400/25AJL/G1A-391.91-45/726.6428.5SYG-400/35AJL/G1A-390.88-48/726.8228.5SYG-400/50AJL/G1A-399.72-54/727.63

34、29.5SYG-400/65AJL/G1A-398.94-26/728.0029.5SYG-500/35AJL/G1A-497.01-45/730.008012.51001305231.5SYG-500/45AJL/G1A-488.58-48/730.0031.5SYG-500/65AJL/G1A-501.88-54/730.9632.5SYG-630/45AJL/G1A-623.45-45/733.6010012.51001506035.5SYG-630/55AJL/G1A-639.92-48/734.3236.0SYG-630/80AJL/G1A-635.19-54/1934.8236.5

35、SYG-800/55AJL/G1A-814.30-45/738.4012512.51251706540.0SYG-800/70AJL/G1A-808.15-48/738.5840.5SYG-800/100AJL/G1A-795.17-54/1938.9840.53.4.3.2 30°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹应符合图11和表15的规定。图11 30°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹结构示意图表15 30°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径mmabLL1DdSY

36、G-300/15B图11JL/G1A-296.88-42/723.0163161001104024.5SYG-300/20BJL/G1A-303.42-45/723.4325.0SYG-300/25BJL/G1A-306.21-48/723.7625.5SYG-300/40BJL/G1A-300.09-24/723.9425.5SYG-400/20BJL/G1A-406.40-42/726.9163161001204528.5SYG-400/25BJL/G1A-391.91-45/726.6428.5SYG-400/35BJL/G1A-390.88-48/726.8228.5SYG-400/5

37、0BJL/G1A-399.72-54/727.6329.5SYG-400/65BJL/G1A-398.94-26/728.0029.5SYG-500/35BJL/G1A-497.01-45/730.0080161001305231.5SYG-500/45BJL/G1A-488.58-48/730.0031.5SYG-500/65BJL/G1A-501.88-54/730.9632.5SYG-630/45BJL/G1A-623.45-45/733.60100201001506035.5SYG-630/55BJL/G1A-639.92-48/734.3236.0SYG-630/80BJL/G1A-

38、635.19-54/1934.8236.5SYG-800/55BJL/G1A-814.30-45/738.40125221251706540.0SYG-800/70BJL/G1A-808.15-48/738.5840.5SYG-800/100BJL/G1A-795.17-54/1938.9840.53.4.3.3 90°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹应符合图12和表16的规定。图12 90°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹结构示意图表16 90°单母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸

39、，mm规格号外径mmabLL1DdSYG-300/15D图12JL/G1A-296.88-42/723.0163161001454024.5SYG-300/20DJL/G1A-303.42-45/723.4325.0SYG-300/25DJL/G1A-306.21-48/723.7625.5SYG-300/40DJL/G1A-300.09-24/723.9425.5SYG-400/20DJL/G1A-406.40-42/726.9163161001554528.5SYG-400/25DJL/G1A-391.91-45/726.6428.5SYG-400/35DJL/G1A-390.88-48/

40、726.8228.5SYG-400/50DJL/G1A-399.72-54/727.6329.5SYG-400/65DJL/G1A-398.94-26/728.0029.5SYG-500/35DJL/G1A-497.01-45/730.0080161001655231.5SYG-500/45DJL/G1A-488.58-48/730.0031.5SYG-500/65DJL/G1A-501.88-54/730.9632.5SYG-630/45DJL/G1A-623.45-45/733.60100201001856035.5SYG-630/55DJL/G1A-639.92-48/734.3236.

41、0SYG-630/80DJL/G1A-635.19-54/1934.8236.5SYG-800/55DJL/G1A-814.30-45/738.40125221252106540.0SYG-800/70DJL/G1A-808.15-48/738.5840.5SYG-800/100DJL/G1A-795.17-54/1938.9840.53.4.3.4 单母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK、特轻型钢芯铝绞线LGJQT、耐热钢芯铝合金绞线NAHLGJQ）铜铝过渡设备线夹应符合图13和表1719的规定。图13 单母线（金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJ

42、K、特轻型钢芯铝绞线LGJQT、耐热钢芯铝合金绞线NAHLGJQ）铜铝过渡设备线夹结构示意图表17 单母线(金属软管支撑扩径导线LGKK、圆铝线支撑扩径导线LGJK)铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLL1DdSYG-600KA-2图13LGKK-600(带芯棒)LGJK-1000LGJK-1250LGJK-14000°120221202007653SYG-600KB-230°22SYG-600KC-245°26SYG-600KD-290°30SYG-600KA-40°150221502007653SYG-6

43、00KB-430°22SYG-600KC-445°26SYG-600KD-490°30SYG-900KA-3LGKK-900(带芯棒)LGJK-630 LGJK-8000°125221252007551SYG-900KB-330°22SYG-900KC-345°26SYG-900KD-390°30SYG-1400KA-4LGKK-1400(带芯棒)0°150221502408359SYG-1400KB-430°22SYG-1400KC-445°26SYG-1400KD-490°30表1

44、8 单母线（特轻型钢芯铝绞线LGJQT）铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号abLL1DdSYG-1400QA-3图13LGJQT-14000°125221252007653SYG-1400QB-330°22SYG-1400QC-345°26SYG-1400QD-390°30SYG-1400QA-40°150221502007653SYG-1400QB-430°22SYG-1400QC-445°26SYG-1400QD-490°30表19 单母线（耐热钢芯铝合金绞线NAHLGJQ）铜铝

45、过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm型号abLL1DdSYG-1440NA-3图13NAHLGJQ-14400°125221252408053SYG-1440NB-330°22SYG-1440NC-345°26SYG-1440ND-390°30SYG-1440NA-40°150221502408053SYG-1440NB-430°22SYG-1440NC-445°26SYG-1440ND-490°303.4.3.5 0° 双母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹应符合图14和表

46、20的规定。图14 0°双母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹结构示意图表20 0°双母线（钢芯铝绞线JL/G1A）铝设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外径，mmabLHDdSYG-2×300/200A图14JL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221202004025.5SYG-2×400/200AJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390

47、.88-48/7JL/G1A-399.72-54/726.9127.63120221402004529.5SYG-2×500/200AJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221602005032.0SYG-2×300/400AJL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221204004025.5SYG-2×400/400AJL/G1A-406.40-42/7JL/G1A-391.91-4

48、5/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221404004529.5SYG-2×500/400AJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221604005032.03.4.3.6 30°双母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹应符合图15和表21的规定。图15 30°双母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹结构示意图表21 30°双母线（钢芯铝绞线JL/G1A）铜铝过渡设备线夹型号及主要尺寸型号图号适用导线主要尺寸，mm规格号外

49、径mmabLHDdSYG-2×300/200B图15JL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221202004025.5SYG-2×400/200BJL/G1A-406.40-42/7JL/G1A-391.91-45/7JL/G1A-390.88-48/7JL/G1A-399.72-54/726.9127.63120221402004529.5SYG-2×500/200BJL/G1A-497.01-45/7JL/G1A-488.58-48/730.00140221602005032.0SYG-2×300/400BJL/G1A-296.88-42/7JL/G1A-303.42-45/7JL/G1A-306.21-48/7JL/G1A-300.09-24/723.0123.94100221204004025.5SYG-2&