高柔性电缆|拖链电缆|聚氨酯电缆Copper core cable and aluminium core cable comparative advantage more outstanding

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高柔性电缆|拖链电缆|聚氨酯电缆Copper core cable and aluminium core cable comparative advantage more outstanding

Copper core cable than aluminium core cable has more advantage:

1. The resistance rate is low: aluminium core cable resistance rate than copper core cable about 1.68 times higher.

2. Ductility good: copper alloy extension rate of 20 ~ 40%, electrician copper extending rate in more than 30%, and the aluminum alloy is only 18%.

3. High strength: under normal temperature allow stress, copper than aluminum respectively higher than 7 ~ 28%. Especially under high temperature stress, both differ is very far.

4. Fatigue: aluminum repeated bending is easy to break, copper is not easy. Elastic index, copper is better than aluminum high about 1.7 ~ 1.8 times.

5. Good stability, corrosion resistance: copper core oxidation, corrosion resistance, and aluminium susceptible to oxidation and corrosion.

6. Load flow big: due to the resistance rate is low, with the cross section of the copper core cable than aluminium core cable permitted load flow (can pass the maximum current) high 30%

7. Voltage loss low: because of copper core cable resistance rate is low, in the same section through the same current situation. Copper core cable voltage drop is small. Therefore, the same transmission distance, can guarantee a high voltage quality. Or, in allowed voltage drop conditions, copper core cable transmission can achieve a far distance, namely power supply cover large area, be helpful for network planning, reduce power supply point set quantity.

8. Heating temperature low: in the same electric shed, and cross section of copper core cable calorific value than aluminium core cable much smaller, making operation more safety.

9. Low energy consumption: because copper resistance rate is low, compared with aluminium cable is concerned, copper cable of the electric energy loss is low, this is obvious. This is helpful to improve power utilization and environmental protection.

Oxidation, corrosion resistance: copper core cable connector stable performance, not due to oxidation and accident. Aluminium core cable joint unstable often due to oxidation contact resistance increases, fever and accident. Therefore, accident rate more than copper core cable.

11. Convenient construction: (1) copper core flexible good, allowed bending radius is small, so turn the corner is convenient, wear tube easy; (2) the copper core fatigue, repeated bending not break, so connection convenient; (3) in copper core of high mechanical strength, can bear larger mechanical tensile, give a construction laying great convenience, but also create conditions for mechanized construction.

Aluminium core cable than copper core advantage

1. Cheap: copper rod is aluminum rod price 3.5 times, the proportion of copper and aluminum, 3.3, times, so aluminium core cable than copper core cable is much cheaper, suitable for low information engineering or temporary electricity.

2. Cable is very light: aluminium core cable is the weight of the copper core cable 40%, construction transportation cost is low.

(3) oxidation, corrosion resistance: aluminum in the air and oxygen reaction soon generated a kind of oxide film, can prevent further oxidation, so aluminum conductor is high voltage, large cross-section, big span overhead transmission will choose materials.

Although aluminium core cable and cheap, but copper cable in the cable power supply, especially underground cable power supply domain, has obvious superiority. Underground use copper core cable power supply has the accident rate is low, the corrosion resistance, high reliability, construction maintenance is convenient wait for a characteristic. This is also the domestic currently in underground cable power supply mainly adopts copper cable reason.

上一个：伺服电缆|电梯电缆|数据电缆The state-owned building materials about electric cable and so on three section of the announcement of d 下一个：拖链电缆|聚氨酯电缆|耐油电缆LS cable highly sophisticated products debut EP CHINA