简要说明：LGJ钢芯铝绞线结够尺寸及主要技术参数

结够尺寸及主要技术参数 铝绞线 Aluminium stranded conductors

钢芯铝绞线 Aluminium conductors steel-reinforced

钢芯铝绞线 Aluminium conductors steel-reinforced

圆绞线 Aluminium wire conductor

镀锌钢丝 Galvanized steel wire

注d表示钢丝直径。 Note:d experess steel wire diameter. 铝绞线及钢芯铝绞线弹性系数和线膨胀系数 Aluminium stranded conductor and aluminium conductor steel-reinfored last elasticity ratio and line inflation ratio. 铝绞线 Aluminium stranded conductor

钢芯铝绞线 Aluminium conductor steel-reinfored

500kv线路用钢芯铝绞线（LGJ）型式试验项目特性试验 Type test item of characteristic test adapt aluminium conductor steel-reinforced used in 500 KV line. 蠕变性能参数 Wriggle variation performance parameter 试样根数：4根（仅以LGJ-720/50为例） 试验条件：试样端头间的长度：14m 试样端头处理：环氧树脂浇铸 引伸仪测试的有效长度：5000 ±1mm 试验温度：20 ±1℃ 试验精度：应力：±1% 应变：±0.01mm/5000mm 试样张力：25.59kN（15%RTS） 试样记录时间：在加载负荷reach达到后，起开始以1、2、3、4、5、6、7、10、30、60（分递增的时间纪律伸厂与相应温度值。随后3天内每1小时记录一次，第四天起至第5天内2小时记录一次，第6天起4小时记录一次，第15天起后6小时记录一次，总试验时间为1000小时 试验结果：在15%RTS、25%RTS、35%RTS的张力下的蠕变方程可推出10年（87600小时）后的蠕变量分别为280、541、794mm/km。 Sample number :4(for example LGJ-720/50) Test condition sample length: Length of two end sample:14m Treatment of two end sample:epoxy resin pouring Testing valid length of the simultaneity elongation instyument Rest temperature:20 ±1℃ Test precision: Stress: ±1% Strain: ±0.01mm/5000m Sample tension:25.59kN(15%RTS) 42.66kN(25%RTS) 59.71kN(35%RTS) sample record time:when tension loading reach a value,homologous value of elongation and temperature are recorded at the increasing time of 1、2、3、4、5、6、7、10、15、30、60minutes;following three day,the value are recorded every one hour;form day to the five day,the value are record every two hour;form the six fourteen day,the value are recorded every four hour;from the fifteen day,the value are recorded every six hour,the testing time is 1000 hour. Test result:The wreggle variation equation at the 15%RTS、25%RTS、35%RTS、tension loading can deduce the wriggle variaion value as following:280、541and 794mm/km. 振动疲劳试验 Vibratory fatigue test 振动参数：振动角25~300 ,张力为拉断力保证值的25%。 振动次数：3 × 10-7 次 试验结果：铝单线不断股。 Vibratory parameter:Vibratory angle:25~300 ,tension is the percent 25 of breaking ;oad. Vibratory time:3 × 10-7 Test result:single aluminium wire non-breaking.

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