铝合金电力电缆

铝合金电力电缆Aluminum Alloys Power Cable

一、执行标准

GB/T31840-2015、NB/T42051-2015

Execution standardGB/T31840-2015、NB/T42051-2015

二、电缆名称型号及规格见下表Name cable type andspecificationsee the table below

注:导体材料为稀土高铁铝合金时，应在名称上注明稀土高铁铝合金;如有阻燃要求的可在型号中加Z(A、B、C、D)，有耐火要求的可在型号中加NH，有无卤低烟的电缆在型号中加WDZ(A、B、C、D),防水要求的加FS。

Note: conductor material for rare earth high iron alloy, rare earth shall be indicated in the name of high-speed aluminium alloy: if there is Arequirement for flame retardant can add Z to the model (A, B, C, D), NH are added into the model, with the presence of low smokecable WDZ are added into the model (A, B, C, D), the waterproof requirement of FS

三、型号的组成及其代表意义

阻燃Flame retardant........................................................................................................................................Z（R）

耐火 Refractory......................................................................................................................................................NH

低烟无卤 Low smoke zero halogen.............................................................................................................WDZ

阻燃等级Flame retardant grade......................................................................................................A、B、C、D

铝合金芯 Aluminum alloy core..........................................................................................................................LH

交联聚乙烯绝缘 Cross-linked polyethylene insulation................................................................................YJ

聚氯乙烯护套 PVC sheathed...........................................................................................................................V、2

聚乙烯护套 PEsheathed....................................................................................................................................V、3

钢带铠装 Steeltape armoured...............................................................................................................................2

细钢丝铠装 Fine steelwire armoured..................................................................................................................3

铝合金带联锁铠装 Aluminum alloy with interlocking armoured........................................................S、6

四、铝合金电缆的优异特性

抗蠕变性能-铝合金导体的合金材料与退火处理工艺减少了导体在受热和压力下的“蠕变”倾向，相对于纯铝，抗蠕变性能提高300%，避免了由于冷流或塘变引起的松弛问题。

热膨胀系数-铝合金的热膨胀系数与铜相当，基本上与连接器的膨胀和收缩一致。连接性能-用铝合金制造的电气连接与铜导体制造的连接一样安全稳定，铝合金的成分大大改进了其连接性能，当导体退火时，添加的铁产生高强度抗蠕变性能，即使在长时间过载和过热时，也能保证连接稳定。

自重承载力强-铝合金改善了纯铝的抗拉强度，铝合金电缆可支撑4000米长度的自重，铜电缆只能支撑2750米防腐蚀性能-铝合金在空气中很快形成一层厚度约为

2x10-4mm%的紧密氧化膜，防止内部的金属被进一步腐蚀，而铜则不能形成氧化膜，特别是连接点产生的电化学腐蚀，铝合金的抗腐蚀性能优于铜。

柔韧性-铝合金的合金配方、加工工艺，使柔韧性大幅提高。铝合金比铜柔韧性高30%。

弯曲性能-纯铝电缆弯曲性能很差，弯曲很容易发生断裂、折断，铝合金反弹性比铜低40%，在安装过程中更容易弯折，有效的减少安装成本，降低事故风险。

铠装特性-铝合金铠装电缆弯曲性能好，最小弯曲半径优于铜;机械强度高，具有抗张性能、抗压性能和抗冲击性能:防虫蚁、老鼠咬:重量轻，更易安装。

The excellent properties of aluminum alloy cable

Creep resistance of aluminum alloy conductor alloy materials andannealing treatment reduced the conductor under heat and pressure of"creep" tendency, relative to the pure aluminum, creep resistance increasedby 300%, to avoid the problems caused by cold flow or creep relaxation.

Thermal expansion coefficient of thermal expansion coefficient ofaluminium alloy and copper, basically are in complete accord with theexpansion and contraction of the connector.

The electrical connection in the connection performance - made ofaluminum alloy with copper conductor manufacturing as security andstability of the connection, the composition of aluminum alloy greatlyimprove the connection performance, when the conductor annealing.adding iron to produce high strength and creep resistance, even in along time when overload and overheat, can guarantee the stability ofconnection.

Weight bearing capacity is strong, aluminum alloy improved thetensile strength of pure aluminum, aluminum alloy of every cable cansupport 4000 meters in length, the copper cable can support 2750 meters.

Anti-corrosion performance - aluminum alloy in air quickly form athickness of about 2 x 10-4 was compact oxidation film, prevent theinternal metal was further corrosion, and copper could not form oxidationfilm, especially the connection point.

Electrochemical corrosion, the corrosion resistance of aluminumalloy is better than that of copper. Flexibility - aluminum alloy unique alloyformula and processing technology, to improve the flexibility. Aluminumalloy flexibility is 30% higher than copper.

Bending performance - the bending performance is very poor, purealuminum bending is easy to break, break, aluminum alloy is lower thancopper 40%, elasticity during the installation process easier to bendeffectively reduce the installation cost, reduce the risk of accidents.

Armoured features - aluminum alloy armoured cable bendingperformance is good, the smallest bending radius is better than that ofcopper; High mechanical strength, tensile properties, compressiveproperties and impact resistance; Insect-resistant ant, mice bite; Lightweight, easier to install

五、产品结构示意图Product structure diagram

七、电缆的使用条件Theuse condition ofthe cable

1,电缆额定电压等级U/U(Um)标示如下: 0.6/1(1.2)、1.8/3(3.6)、6/6(7.2)、6/10(12)、8.7/10(12)、8.7/15/(17.5)、12/20(24).

18/30(36)、21/35(40.5)、26/35(40.5))kV。

2.交联聚乙烯绝缘电缆导体的**额定工作温度为90，短路时[最长持续时间不超过5s)，申缆导体的**温度不超过250°

3.电缆允许敷设与安装温度不低于0C，电缆埋地敷设时，电缆轴心与地面距离为700mm为宜。

4.电缆弯曲半径:无铠装电缆应不小于电缆外径的15倍，有铠装电缆应不小于电缆外径的20倍.

1.The cable is rated voltage grade U0 /U (Um) labeled as follows: 0.6/1 (1.2), 1.8/3 6/6 6/6 (3.6),(7.2), (12),(12),(17.5)/8.7/15 8.7/10 122012/20(24)(36),21/35(40.5)2/35 kV(40.5))

2. The crosslinking polyethylen insulated cable conductor of the highest working temperature is 90 ", rated short circuit when (the longestduration of no more than 5 s), cable conductor of the highest temperature does not exceed 250 C.

3.The cable and installation allows the temperature is not lower than 0 C, the cable, buried cable axis and the ground distance is 700 mm.

4. The bending radius: no armoured cable should be not ess than 15 times of cable diameter. armored cable should be not less than 20 timesof cable diameter.