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From 2018 to 25, the annual compound growth rate of global silicone rubber power cables will reach 2.3%
2019-04-08[Cable Network News] According to the current situation and forecast of the global silicone rubber power cable market released by Market Expertz, the global silicone rubber power cable market size in 2017 reached 890 million US dollars, and it is expected that by 2025, this data will increase to 1.07 billion US dollars, during the period The compound annual growth rate is 2.3%.
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According to the report, silicone rubber power cables are generally used for transmission and distribution of 1-36KV voltage circuits. The working temperature of the silicone rubber wire conductor is -80~180℃, which has high heat resistance and excellent cold resistance. The performance remains relatively stable even with changes in temperature and frequency. It also has excellent electrical insulating properties, corona resistance, and arc resistance, even after several years of outdoor exposure. In addition, it also has low water absorption and good mildew resistance, good thermal conductivity, especially soft and easy to install, tasteless, tasteless, non-toxic, and has no adverse effects on human health.
From the perspective of industry structure, the silicone rubber power cable industry is highly fragmented. Various manufacturers from large multinational corporations to small private companies compete in this industry. The top ten producers accounted for approximately 34.58% of the revenue market.
From the known actual data, in 2015, China accounted for 35.89% of the production market. Followed by the United States and Europe, accounting for 21.25% and 20.05% of the global total industry respectively. Production in other countries is relatively small. Geographically, China is the largest consumer market in the world, followed by Europe and the United States.
It is predicted that the global silicone rubber power cable revenue will continue to grow, with an annual growth rate of 1~3%, with a slightly higher growth rate in Europe and China. Taking into account the current demand for silicone rubber power cables, the report believes that the industry still has a bright future. As for product prices, the slow downward trend of recent years will continue in the coming years as competition intensifies. Likewise, gross margins will fluctuate.
From the perspective of manufacturers, Prysmian (including the acquired General Cable), Nexans, Sumitomo Electric, LS Cable, Furukawa Electric, Southern Cable, Fujikura Cable, Far East Smart Energy, LEONI Cable, Hitachi Cable, Shangshang Cable, etc. will become the industry-leading manufacturer of silicone rubber cables. -
2019 PV changes: overseas competition becomes the key
2019-04-08
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Although the subsidy policy has not yet been implemented, the overall trend of the domestic market has gradually become clear. First of all, it needs to be clear that photovoltaic projects starting in 2019 can be divided into two categories, one is unsubsidized projects, and the other is subsidized projects. How the photovoltaic market will develop in 2019 depends on how much market demand these two types of projects can bring.
From the perspective of enterprises, in addition to market demand, the rate of return of the project is also a key factor in determining future development. What is the rate of return of photovoltaic projects in 2019?
Yield is king
For the rate of return of the project, we still need to analyze the unsubsidized project and the subsidized project. First of all, from the perspective of subsidized projects, the policy of limiting subsidy funds of 3 billion yuan is likely to be implemented. In this way, no matter how much the installed capacity of subsidized projects is, the income generated by them is almost limited.
According to the new policy, except for poverty alleviation projects, household projects and a small number of demonstration projects, all other subsidized projects need to obtain scale indicators through bidding. The model of obtaining scale indicators through bidding has been adopted by the frontrunner plan projects before, which means that ordinary projects in 2019 have tended to be “frontrunners”.
Referring to the bidding of the frontrunners that repeatedly hit new lows in price in the past two years, this year's bidding for subsidized projects will also be very lively. It is precisely because of the existence of bidding that the cost of photovoltaic power generation of the front-runner projects is close to or even lower than the grid parity standard, but at the same time, the rate of return of these projects has dropped accordingly.
From the experience of the leader project, we can foresee that the grid-connected price of photovoltaic power generation for subsidized projects in the future will be driven lower and lower by the bidding mode, and the cost of photovoltaic power generation will gradually approach the grid parity under the limit of this price. standard. Therefore, unlike the previous fixed subsidies, the yield of subsidized projects in 2019 will decline sharply.
Therefore, under the limit of 3 billion yuan of subsidy funds and the control of the bidding model, the yield of subsidized projects will drop sharply until it approaches the cost line. In this way, the size of its installed capacity has little meaning.
From the perspective of unsubsidized projects, since such projects cannot enjoy state subsidies, their rate of return is basically difficult to compare with subsidized projects. However, judging from the "Notice on Actively Promoting Wind Power and Photovoltaic Power Generation Unsubsidized and Parity Internet Work" released some time ago, the rate of return of unsubsidized projects largely depends on the implementation of the policy.
Only if the above policies can be implemented to the greatest extent, the "non-technical cost" of unsubsidized projects can be effectively reduced, the project rate of return can be guaranteed, and finally unsubsidized projects can be successfully promoted on a large scale in 2019.
Even in some regions with superior resource conditions, the rate of return of unsubsidized projects may be equal to that of some subsidized projects. In general, the rate of return of unsubsidized projects is highly variable, and is greatly affected by the "non-technical cost" factor. In an ideal world, the rate of return on an unsubsidized project might be at the same level as a subsidized project.
To sum up, the rate of return of subsidized projects in 2019 may continue to drop, while the rate of return of unsubsidized projects will hardly perform well. Under such circumstances, the newly installed capacity of photovoltaic projects in 2019 can no longer represent the development of the industry as in previous years. Because under the same scale, the income generated by the scale of new projects in 2019 is quite different from the previous year.
Therefore, for the photovoltaic market in 2019, the yield rate is king, and only those companies with strong cost control capabilities can have a place.
Overseas competition becomes the key
From the above analysis, it can be found that there may still be a good scale of newly installed capacity in my country in 2019, but the revenue generated by these scales will decline sharply. The size of the market seems to remain the same, but the cake is invisibly smaller. From this point of view, the domestic market in 2019 is still unable to restore the vitality of 2017.
Unlike the domestic market, the overseas market has blossomed everywhere in 2019. In recent years, there has been a wave of clean energy in the world, while the photovoltaic markets in Europe, America, Japan and other countries -
What requirements do photovoltaic special cables need to meet
2019-04-08
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Solar technology will become one of the future green energy technologies. With the increasingly complex use environment of photovoltaic power plants, the requirements for photovoltaic cables are also increasing. If ordinary cables are used, the sheaths of ordinary cables have poor UV protection performance, which will lead to the aging of the outer sheath of the cables, which will affect the service life of the cables, and may cause problems such as cable short circuits, fire alarms, or dangerous injuries to employees. So what requirements do photovoltaic cables need to meet?
1. Requirements for high and low temperature characteristics
Withstand low temperature: the temperature in the western and northern regions is low in winter, and the low temperature in extreme areas can reach -40 ℃ below zero. This requires the cable and good low temperature resistance.
Withstand high temperature: the surface temperature in the eastern and southern regions can easily reach above +70°C, and the extreme temperature in areas with poor heat dissipation is likely to exceed +90°C. This requires that the material temperature of the cable can meet the requirements of the power station to work in extreme temperatures.
2. Requirements for anti-humidity and heat characteristics
Application environment: Many power stations in the fish-optical hybrid project are directly built on fish ponds or on the water surface, requiring cables to work normally in a humid environment for a long time.
Frequent changes in temperature and humidity have a direct impact on the insulation and aging of the material.
Special requirements: Considering the influence factors of humid and hot environment on the aging performance of insulation and sheath materials, the selected insulation and sheath materials are at a temperature of +90 ℃ and a humidity of 85%.
Follow the standard: Carry out the test according to the method specified in GB/T2423.3-2006. After the test, the reduction rate of the tensile strength and elongation at break of the insulation and sheath is not more than 30%.
3. Resistance to sunlight and ultraviolet rays
Requirements: Many cables of photovoltaic power stations are laid bare. In most cases, the cables from solar modules to combiner boxes and even to inverters are directly laid bare. This requires that the cables must be able to withstand sunlight and ultraviolet radiation, and can ensure that the It can work normally for a long time under the vertical radiation of sunlight and ultraviolet rays.
Application environment: Qinghai, Tibet, Xinjiang, Gobi Desert and desert areas
4. Requirements for resistance to sunlight and ultraviolet rays
Application environment: seaside, tidal flat, salt field and other special areas
Special requirements: For photovoltaic cables suitable for such environments, the conductors are made of tinned copper conductors, which enhances the oxidation resistance and corrosion resistance of the conductors.
Follow the standard: salt spray test according to GB/T2423.17-2008, acid-base test according to GB/T2951.12-2008.
5. Requirements for anti-ozone corrosion
Special requirements: The power station is installed in an area with high ozone content. Ozone has a certain corrosive effect on the cable sheath, that is, it accelerates the aging of the sheath and affects the use of the cable. Conventional cables do not consider the effect of ozone on the cable sheath, while photovoltaic cables are designed with this effect in mind.
Follow the standard: GB/T2951.21-2008 stipulates ozone resistance test, GB/T2951.21-2008 stipulates ozone resistance test.
The application environment of photovoltaic power plants is complex, and the quality of the cable determines whether it can run safely for a long time. The photovoltaic special cable will become an important guarantee for the long-term operation and stable income of the power station! -
Discussion on the Innovation Consciousness of Control Cable
2019-04-08
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At present, domestic cable companies have relatively few invention patents with high gold content, and more utility model patents; but the patents applied by multinational groups are generally invention patents, and it can be seen that the gap between domestic companies and multinational groups lies. In addition, the data show that if calculated on a per capita basis, my country's patents are only about 0.14 of those of developed countries.
Patents and innovation consciousness are concrete manifestations of soft power. my country is still in the middle stage of industrialization, and is facing new challenges in terms of innovation ability. Under normal circumstances, the key enterprises with the top ranking in the industry have a relatively rapid increase in patent data, and their technological advantages are also obvious. On the contrary, in the process of operation, control cable companies that do not pay attention to intellectual property protection will encounter many difficulties in terms of rights protection. Pay attention to the innovation source of independent technology in the world wire and cable industry, integrate information resources, and spare no effort to promote technological innovation, so as to have more patented technologies and patented products of independent significance.
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At the same time, the patented technology is organically combined with production to improve the conversion rate of patented achievements. The patented technology will eventually be transformed into productivity, which effectively enhances the competitiveness of enterprises. The combination of production, education and research and the strengthening of talent team construction The development of wire and cable enterprises is supported by science and technology, and talents are the key. It is necessary to strengthen the construction of innovative talent teams. Only by taking science and technology as the core driving force and important starting point, can we effectively change the mode of economic development and win the initiative of future development. If technological innovation is the life of enterprise development, then talents are the driving force of technological innovation.
At present, there is a shortage of technical and comprehensive talents with good comprehensive quality in the control cable industry. The reason is that many companies want talents to come in handy, but seldom pay attention to the cultivation of talents. The loss of talents has seriously affected the pace of the wire and cable industry to enter the international market. For the college students who have just graduated from the cable major, they have learned a lot of theoretical knowledge. Because they have little contact with the actual situation, after entering the factory, they often seem to be in a hurry when dealing with practical problems. It will artificially cause certain losses to the company. At this time, the company feels that the person's ability is not strong and his level is limited, so he will no longer be given room for improvement, and will no longer be used as a training object to let go of important positions, which is not conducive to the growth of talents. There are also some technicians who are not able to exert their abilities freely in their positions, and leaders intervene too much, and their enthusiasm and creativity for technological innovation have been significantly weakened. There are many similar situations in the industry. Our factory found that there are often faults in technical talents. In particular, there are very few academic leaders with high technical research and development ability, and scientific research management talents with both scientific research and development ability and strong organizational and coordination ability.
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Aiming at the market, it is especially important to increase the construction of the industry-university-research cooperation system and accelerate the industrialization of major projects. Enterprises should cooperate with well-known industry research institutes, scientific research institutions and other units, adopt a deep integration mechanism, and establish a scientific and technological resource sharing mechanism. In this way, scientific research institutes and enterprises can play their respective advantages, cooperate with each other, build a core R&D team, and fully absorb and utilize International innovation resources make products more technologically advantageous in the world, add new impetus to the development of enterprise science and technology, take new steps in adjusting the industrial structure, and promote my country's control cable science and technology business to catch up with and surpass the world's advanced level. In the operation process of control cable manufacturers, it is found that the disconnection between scientific research and production is a common problem for enterprises. The fundamental reason is th
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