11 kinds of wires and cables urgently needed in the domestic market
- Categories:Industry News
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- Time of issue:2016-09-19 16:17
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(Summary description)Although the special overhead lines with special requirements can be produced in our country, there is still a big gap in the technical performance of high heat resistance, high corrosion resistance, creep resistance, flexibility, and high conductivity compared with foreign advanced levels. Another example is split overhead lines, which have gaps in technical performance indicators such as corrosion resistance, vibration resistance, ice and snow protection, low corona loss, low arc corona loss, low arc volume, and double capacity. In order to meet the needs of major projects such as the Three Gorges Project, special overhead lines need to be developed and improved vigorously in product varieties and product performance.
11 kinds of wires and cables urgently needed in the domestic market
(Summary description)Although the special overhead lines with special requirements can be produced in our country, there is still a big gap in the technical performance of high heat resistance, high corrosion resistance, creep resistance, flexibility, and high conductivity compared with foreign advanced levels. Another example is split overhead lines, which have gaps in technical performance indicators such as corrosion resistance, vibration resistance, ice and snow protection, low corona loss, low arc corona loss, low arc volume, and double capacity. In order to meet the needs of major projects such as the Three Gorges Project, special overhead lines need to be developed and improved vigorously in product varieties and product performance.
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2016-09-19 16:17
- Views:
(1) Special overhead lines
Although the special overhead lines with special requirements can be produced in our country, there is still a big gap in the technical performance of high heat resistance, high corrosion resistance, creep resistance, flexibility, and high conductivity compared with foreign advanced levels. Another example is split overhead lines, which have gaps in technical performance indicators such as corrosion resistance, vibration resistance, ice and snow protection, low corona loss, low arc corona loss, low arc volume, and double capacity. In order to meet the needs of major projects such as the Three Gorges Project, special overhead lines need to be developed and improved vigorously in product varieties and product performance.
(2) Nuclear power plant cable
Nuclear power plant cables are distributed in nuclear islands, conventional islands, and BOP parts of nuclear stations. They are used for power transmission, control, computers, instruments, etc. The types of cables required for a nuclear station are basically the same as those of a thermal power station. However, because nuclear power plant cables have very strict technical performance requirements such as halogen-free, low-smoke, and low-toxicity, my country can only produce wires and cables for the periphery of nuclear islands, and most of the rest can only rely on imports. There are 276 nuclear power plants in the world, generating 343792MWh, accounting for 17% of the world's total power generation. Nuclear power generation in more than 10 countries accounts for 25% of their total power generation. It is estimated that by 2010 my country’s installed nuclear power capacity will reach 20,000 MW, accounting for 17% of my country’s total power generation, and it has great potential for development. Therefore, cables for nuclear power plants have good market development prospects.
(3) Low-smoke, low-halogen, low-smoke, halogen-free, flame-retardant cable
This product is mainly used in some important places such as subways, tunnels, oil platforms, ships, power stations, etc. The above-mentioned related industries are currently in a stage of rapid development, which will surely further stimulate the demand for this product.
(4) Automotive wiring
During the "Ninth Five-Year Plan" period, my country's automobile industry will maintain sustained and rapid development. In 2000, the annual output of cars and trucks is expected to reach 3 million, so there is a great demand for this product. The future development trend of this product is high temperature resistance, high damping, thin wall type and shielded type.
(5) High flame retardant cable
At present, most of the flame-retardant cables produced in China are Class C and Class B, and Class A is still under development. This is still a long way from the current requirements of many high-quality engineering projects in my country. The development direction during the "Ninth Five-Year Plan" period It is a complete set of cables that reach Class A flame-retardant.
(6) Broadband and local network cables for intelligent buildings (Category 5 and Category 6 cables)
This product has multiple signal functions such as telephone, fax, videophone, anti-theft alarm, etc. It is also called electronic cable. This product has accounted for more than 20% of all insulated cables in the United States. With the rapid development of intelligent buildings, computer industrialization and information highway projects in China, the demand for this cable will also increase. At present, the transmission rate of the cable has reached 100Mb/s (ie, Category 5 cable), and it is expected to reach 320Mb/s during the "Ninth Five-Year Plan" period.
(7) Optical fiber composite overhead ground wire (OPGW)
The optical fiber composite overhead ground wire has multiple functions such as communication, remote control and telemetry, and data transmission. It is suitable for the management automation of 110-500kV high-voltage and ultra-high-voltage overhead transmission lines with high reliability.
(8) Ribbon optical cable
Foreign countries focus on the development of thin-layer and large-core user ribbon optical cables. The 1,000-core technology is mature, and the development of 2,000-4,000 cores is currently underway. my country is still in its infancy. Only 108 cores have been developed and need to be developed vigorously to adapt to the information highway project. Development needs.
(9) 110kV and above high voltage cross-linked cable accessories
Cable accessories are important supporting products of cables, which will directly affect the operation quality of transmission lines. The country has introduced 27 production lines of cross-linked cables above 110kV and will be put into production one after another. Its total production capacity can fully meet the needs of the market. However, the high-voltage cross-linked cable accessories of 110kV and above can only be produced in small quantities by only 3 domestic enterprises at present, and their output and voltage levels are far from being able to meet the development needs of the power industry.
(10) Submersible pump cable
High temperature resistant submersible pump cable is a supporting product for oil pumps. With the vigorous development of the Northwest Oilfield and the deepening of the potential of the old oilfield, the high temperature resistance requirements of the submersible pump cable are higher. The domestic production capacity has developed rapidly, but the product quality and life expectancy are still not satisfactory. In the future, efforts should be made to improve the quality and develop higher temperature resistance grade submersible pump cables.
(11) High-performance winding wire
Class B polyester enameled wire still accounts for 90% of the domestic enameled wire, but its share in Japan has dropped below 30%. At the same time, domestic products are far behind foreign similar products in terms of size control and performance indicators. The focus of future technology development should be high performance, multilayer composite structure and fine enameled wire.
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