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India Fair 2015

Release time:

2015-12-25

sanheng cable exhibition

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Staff Activities-Baiyun Mountain Journey

On May 8, facing the morning sun, our boys embarked on a journey. This time we went to a scenic spot in Luoyang, Henan. The name was Baiyun Mountain. People say that Baiyun Mountain is a "paradise on earth". After more than 4 hours of bus ride, we finally arrived at Baiyun Mountain

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Winter solstice

The winter solstice is one of the most important days of the year, a day for family togetherness. On this day, people in the northern part of China will eat dumplings, and there is a saying that references this custom. People in southern China will make and eat tangyuan, or rice dumplings, to symbolize the reunion of family.

Breakthrough of wire and cable companies in 2019-2020

Wire and cable are indispensable basic equipment for transmitting electrical energy, transmitting information and manufacturing various motors, electrical appliances, and instruments. It is a necessary basic product in the future electrification and information society. It can be roughly divided into five categories of products: power cables, bare wires, communication cables and optical cables, winding wires, wires and cables for electrical equipment, etc. In addition, with the rapid development of China's shipbuilding, aerospace and military industries, and new energy sources such as nuclear energy and wind energy The revitalization of the industry, the required special cables have also become an important product category.

Advantages of copper cables

For the wire and cable industry, the most obvious material replacement is to use aluminum conductor instead of copper conductor. In the relative cost of copper and aluminum conductors, we need to consider the price, specific gravity, conductivity and other factors, in order to get the real answer whether using aluminum conductors can save costs. Copper is heavier than aluminum. The specific gravity of copper is 8.9g.cm3, and the specific gravity of aluminum is 2.7g/cm3. That is to say, under the same conductor specification, the weight of copper conductor is 3.3 times that of aluminum conductor. However, the conductivity of aluminum is only 61% of that of copper, that is to say, the cross section of aluminum conductor is 61% larger than that of copper conductor under the same transmission current. Therefore, in terms of conductor weight, to make the two conductors have the same carrying capacity, the weight of copper conductor is about twice that of aluminum conductor. In addition, the price ratio of copper to aluminum is about 3.5, so the cost of equivalent copper conductor is seven times that of aluminum conductor.

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