In the early stage of the 12th Five Year Plan, the wire and cable industry as the basic industry of national economy will have further development in the future, and the overall strength will be further improved with the development of the country. But the cable industry is a large industry, and the market segmentation will become more and more obvious with the economic development. In addition to the gradual increase in the production and sales of some products with old specifications, some products in the market segmentation will make rapid progress in the future with the needs of construction.
In this paper, the author summarizes the future demand development trend of the domestic market based on the actual situation of the industry, and publishes some opinions for your reference, with a view to attracting more guidance.
I. special overhead line
Although special overhead lines with special requirements can be produced in China, there is still a big gap between China and foreign countries in terms of technical properties such as high heat resistance, high corrosion resistance, creep resistance, softness and high conductivity. As for the split type overhead line, there is a gap in technical performance indexes such as corrosion resistance, vibration protection, ice and snow protection, low corona loss, low corona loss, low arc amount, double capacity, etc. In order to meet the needs of the Three Gorges and other major projects, special overhead lines need to be developed and improved in terms of product varieties and product performance.
II. Wires and cables of nuclear power plant
Cables of nuclear power station are distributed in nuclear island, conventional island and BOP of nuclear power station, which are used for power transmission, control, computer, instrument, etc. the types of cables required for a nuclear power station are basically the same as those for thermal power station. However, due to the strict requirements for halogen-free, low smoke, low toxicity and other technical performance of nuclear power plant cables, China can only produce and manufacture wires and cables for the periphery of nuclear island, and most of the rest can only rely on imports at present.
According to the national "12th Five Year Plan for energy development" and "development plan for emerging energy industry", if we want to achieve the goal of 15% non petrochemical energy by 2020, the scale of nuclear power in China will reach at least 75 million kilowatts, while the current domestic installed capacity of nuclear power is only 9 million kilowatts, with a growth space of 7-8 times in the future.
Therefore, cables for nuclear power plants have a good market prospect.
III. low smoke and low halogen, low smoke and halogen-free flame retardant wire and cable
The product is mainly used in subway, tunnel, oil platform, ship, power station and other important places. The above-mentioned related industries are in the high-speed development stage during the "12th Five Year Plan", such as the construction and improvement of domestic subway, the comprehensive construction of railway network (including high-speed railway network), which will further stimulate the production of relevant high-performance environmental protection low smoke low halogen and low smoke zero halogen cables There is a large demand for products.
IV. automobile wiring
During the 12th Five Year Plan period, China's automobile industry will maintain sustained and rapid development. In 2015, the annual output of automobiles reached 25 million, compared with about 16 million during the 11th Five Year Plan period, with an expected growth rate of 56%. Therefore, the demand for automobile wiring will also increase significantly. The development trend of this product in the future is high temperature resistance, high damping, thin wall type and shielding type wiring for automobile.
V. high flame retardant wires and cables
At present, most of the flame-retardant cables produced in China are grade C and grade B, and the class a of high flame-retardant cable is still in development, which is far behind the requirements of many high-quality projects in China. During the 12th Five Year Plan, the development direction is to meet the requirements of a-flame-retardant cables with complete supporting and high flame-retardant performance applications.
Vi. broadband and local network cables for intelligent building (category 6a, category 7 and category 8 digital network communication wires and cables)
The product also has a variety of signal functions such as transmitting telephone, fax, videophone, anti-theft alarm, etc., also known as data cable. This product has accounted for more than 20% of all insulated cables in the United States. With the rapid development of intelligent building, computer industrialization and information superhighway engineering in China, the demand for this cable will also be increasing. At present, the transmission rate of the cable has reached 250MHz (i.e. category 6 cable), and it is expected to reach 800MHz during the 12th Five Year Plan period, which can meet the requirements of "three networks in one" 1) for transmission medium.
VII. OPGW
Optical fiber composite overhead ground wire has dual functions of ground wire and communication optical cable. It is installed on the top of power overhead line tower. Compared with ADSS optical cable, it does not need to consider the adverse factors such as optimal web hanging, electromagnetic corrosion and man-made damage. It has been widely used in the convenient range.
Because the optical fiber composite overhead ground wire has many functions such as communication, remote control, telemetry and data transmission, it is suitable for the management automation of 110 ~ 500kV high-voltage and ultra-high voltage overhead transmission lines in the future, with high reliability and gratifying demand.
VIII. Ribbon cable
Foreign countries focus on the development of thin-layer and large number of cores user ribbon cable, 1000 core technology has been mature, at present, 2000-4000 cores are under development, China is still in the development stage, only 108 cores are developed, and more cores of ribbon cable need to be vigorously developed, in order to meet the rapid development needs of information highway engineering.
IX. accessories of 110kV and above high-voltage cross-linked wires and cables
Cable accessories are important supporting products of cables, which will directly affect the operation quality of transmission lines. More than 27 cross-linked cable production lines above 110kV have been introduced in China, and they will be put into production successively. Their total production capacity can fully meet the market demand. However, at present, only a few domestic enterprises can produce 110kV and above high-voltage cross-linked cable accessories in a small amount, and their output and voltage level are far from meeting the development needs of the power industry.
The market of high-voltage cross-linked cable accessories is in the ascendant in the future development, which breeds infinite business opportunities.
X. electric wire of submersible pump