Our pv wire and cable industry development situation and market prospects |
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Five-year period, the new energy industry will be developing in our country, especially the rapid growth of the photovoltaic industry, will inject new vitality for China's wire and cable industry. Prices in recent years, photovoltaic power station system has realized the drop, but drop as expected. To build economic efficient profitability of photovoltaic power plant, on behalf of all the solar manufacturers one of the most important goal and core competitiveness. In fact, profitability depends not only on the efficiency of the solar module itself or high performance, is also inseparable from the series of the surface and components has no direct relationship between the components. A high quality of the selected components can be avoid because of the high repair and maintenance costs have led to the solar system cannot profit.
Pv cable is also key components
People don't usually will be connected photovoltaic modules and inverters wiring system as a key components, however, if failed to use solar energy application of special cable, will affect the service life of the whole system. Solar system is often used in harsh environment conditions, such as high temperature and ultraviolet (uv) radiation. In Europe, sunny days will result in the solar system in the field temperature as high as 100 ° C. At present, we can use all kinds of material with PVC, rubber, TPE and cross-linked with high quality material, but unfortunately, the rated temperature of 90 ° C rubber cable, and even the temperature of 70 ° C rated PVC cable is also often used outdoors, obviously, this will greatly affect the service life of the system.
In terms of photovoltaic applications, outdoor materials used should be based on ultraviolet radiation, ozone and chemical erosion, severe temperature changes. Under this kind of environmental stress using cheap materials, will lead to the cable sheath is fragile, and even will break down the cable insulation. All of these will directly increase the system loss, the cable will also increase in the risk of cable short circuit occurred at the same time, from the long term, the possibility of a fire or personal injury is also higher.
And during the installation and maintenance, cable wiring around the edge of the roof structure of sharp, and cable must be under pressure, bending, tension, cross tensile load and strong impact. If the cable sheath strength is not enough, the cable insulation layer will be seriously damaged, which affects the service life of the whole cable, or cause a short-circuit, fires and injuries and other issues.
The development of the good and bad are intermingled
During the "twelfth five-year" is China's wire and cable industry concentrated burst of stage, the reason is the rapid development of national GDP, particularly as the country large-scale hydropower station construction and the outbreak of the photovoltaic industry, brings to the cable industry development opportunities. Is it this time, large and small businesses have sprung up gradually emerging, both for wire and cable industry in China, also brought some negative influence or even damage to industry.
In 2012, with GDP growth is slowing, and most of China's industrial growth is likely to continue to maintain a moderate callback. Plus the profit more and more thin, many enterprises not hesitate to make a profit is unqualified, false and inferior product. Some enterprises under the market pressure, choose the lowest price bidding, the many factors but also to bring China's wire and cable industry development bottleneck. Therefore, increase the wire and cable products quality improvement work is urgent, urgent.
Pv enterprises in the foreign contracting construction projects of photovoltaic power station, will face a purchase special cable photovoltaic (pv), wire and cable quality is directly related to my outsourcing project quality and safety. Quality problem directly restricts the competitiveness and development of the whole photovoltaic industry chain. The current situation shows that the current China's wire and cable products quality level and industry development needs, and the masses of users, we still have some gap in expectations, thus it is not hard to see, quality is the core competitiveness of wire and cable industry. Likewise, quality problem is the fundamental problem of wire and cable industry. GDP growth continued to slow, low price competition, loss of good faith, such problems as insufficient development still exist, our wire and cable enterprises how to protect their own vested interests at the same time, to standardize the market, make their efforts to improve the quality of wire and cable products, is a concern of the whole society jointly explore. Believe that only a multi-pronged, through multiple units - the government, testing institutions, enterprises and consumers joined together, work together, can bring change for wire and cable industry and energy.
Industry standards to provide guidance
China electrical equipment industry association "photovoltaic power generation system with cable series standard" by jiangsu sunrise photovoltaic technology co., LTD., Beijing jian scale certification center and other units to draft, by the China council for the wire and cable standard under centralized, released on April 18th in O, CEEIAB218 number standard. Aimed at solving our pv cable without corresponding industry standards or national standards, caused by the design, procurement, usage, acceptance top can depend on, the service life of the cable can't consistent with the service life of the components, lead to the operation of the system after installation, maintenance costs increased, the problem such as power generation efficiency drops.
Standard of photovoltaic power generation system in the classification of the cable. Apply to the uv, ozone resistance, acid and alkali resistance, salt fog resistance and environmental climate requirements of photovoltaic power generation system with ac/dc power cables, control cables, computer and instrument cables use characteristics, types, specifications, technical requirements and inspection requirements. Standard of photovoltaic power generation system with cables and photovoltaic components match the expected service life of 25 years. Meet in alpine, desert, littoral, beaches, grasslands, roof different climates, such as the choice of different types of photovoltaic power station.
The release of photovoltaic power generation system cable standard of photovoltaic power generation system of cable selection, purchase, use, acceptance play a guiding role. In order to optimize the design of photovoltaic power generation system provides a possibility, can reduce the project cost and save maintenance costs.
Certified overseas
Recently, tianjin golden hill electric wire electric cable co., LTD., the production of photovoltaic cable pass tuv certification. The pv cable is mainly used in solar power and photovoltaic systems, in 2012 won the national patent authorization. According to the report, the pass tuv certification, will provide the jinshan cable photovoltaic cable products of the company to enter the European market open avenue.
Independent third party testing and certification bodies will be in accordance with national and international standards, the inspection of the products to rigorous testing. Can be won only by test certification of product
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