New energy class wire and cable will be the development of wire and cable objectives. New energy cables can be divided into: photovoltaic cables, wind power cables, offshore oil platform cable, nuclear power plant cables, electric locomotive cables, inland conventional and unconventional natural gas extraction cables. The following Xiaobian will introduce several major new energy cable product categories and performance, domestic and international application standards, development prospects.

Wind power cables

Wind energy as a clean renewable energy, is currently the most new energy in the most large-scale, the most mature technology, the most promising commercial development model. According to public information, China's mainland and near the coast can use nearly 1 billion kW of wind energy resources, China's "renewable energy long-term development plan" pointed out that in 2020 China's total installed capacity of wind power reached 30 million kW, 2013-2020 still Is a promising golden age. Wind power cables have control cables, signal cables, and twisted power cables in wind turbines and towers. Due to the harsh environment and the power cables are twisted with the impeller swing, wind power cables are generally required, Low temperature, oil resistance, resistance to twisting, weather resistance, resistance to ultraviolet light, acid and so on, China's current wind power cable no national standards, only the national wire and cable quality supervision and inspection center issued TICW01-2009 "rated voltage 1.8 / 3kV and below Wind power with twisted flexible cable "and other industry standards.

Tower cable is the most widely used cable in wind power generation systems. We often say that wind power cables refer to such cables. Because the cable cable with the fan constantly positive and negative swing, so the tower cable cable performance is extremely strict, that is to ensure that the structure is soft, but also requires a high tensile strength, low temperature (-40 ℃), UV, Resistance to torsion, salt spray (offshore wind power plant has such requirements), resistant to seawater corrosion, abrasion resistance, weather resistance, flame retardant and other properties.

Photovoltaic cable

The development of solar energy in recent years showed the development of injection wells, as of the end of 2010, China's solar photovoltaic power generation capacity has reached 893 MW, ranking seventh in the world. It is expected that by 2020, China's total installed capacity of solar photovoltaic power generation will exceed 30 000 MW. The state also supports PV projects. Photovoltaic power generation has led to the rapid development of related products, such as photovoltaic cables.

Usually low-voltage direct current generated by photovoltaic power generation to be converted to alternating current, photovoltaic cells and AC-DC inverter connection between the cable is the photovoltaic cable. In theory, a PV module generally requires two 0. 8-1 m between the single-core cable, so that if the corresponding PV module development speed, by 2020 the amount of photovoltaic cable in China will reach about 150,000 km, the demand space Larger.

PV cable English abbreviation is a PV cable, the structure is relatively simple, that is, conductor, insulation, sheath. China is currently no national standard for photovoltaic cable, the most authoritative international certification of photovoltaic cable TUV Rheinland TUV MARK and UL certification, the main reference standard 2 Pfg 1169 or UL 4703, and the sample to be sent to Germany or the United States, so the certification cycle longer , The cost is higher, and the sample design focus is different.

The performance requirements of the general photovoltaic cable are as follows: The thermal life of the cable insulation and sheath is not less than 25 years at 120 ℃, the cable passes through the dynamic penetration test, the cable passes through a single vertical combustion test, the cable passes the -40 ℃ low temperature test, The cables were tested by acid-base test, damp heat test, ozone test and weather resistance test. However, the application of photovoltaic cable environment, there are differences, so the design should consider the laying of places, such as anti-mouse and other small animals bite and so on. Shanghai Cardiff Cable Co., Ltd. specializes in the production of new energy cables, the products are exported to the world's major enterprises, by the customer's praise

Nuclear grade cable

The construction and selection of nuclear power plants is one of the most important topics in the 21st century. Whether it is Iran, the DPRK nuclear crisis, or the Fukushima nuclear leak in Japan, or the referendum in some European countries, all are carried out around nuclear power. But no matter how trade-offs, the number of cables required for each nuclear power plant is huge.

International standard IEEE383 "IE cable for nuclear power plants, field joints and connector type test" and RCC-E "nuclear island electrical equipment design and construction rules" provides the emergency shutdown of the reactor, containment isolation, the core of the emergency cooling, reactor The waste heat is derived from the waste heat of the reactor plant.

China's standard GB22577-2008 "nuclear power plant with 1E-class cable general requirements" provides the general requirements of nuclear-grade cable. To protect the radioactive material to the surrounding environment and other functions of the electrical system equipment, the safety level, defined as 1E level, in our IE class equipment in accordance with the use of environmental and quality identification requirements can be divided into K1, K2, K3 a total of three categories, of which K3 quality The qualification procedure is used to verify the ability of the equipment installed outside the containment shell to perform its specified functions under normal environmental conditions, as well as for certain equipment under specified conditions.

The cable identified by the K3 quality qualification procedure is called "K3 type cable". Nuclear power plant with lE class K3 class control and instrumentation cable insulation core must meet the excellent mechanical electrical and heat resistance, through a single vertical combustion test, with low smoke, halogen free, low toxicity, low corrosion characteristics, and its service life Should be more than 40 years.

With the increasingly serious problem of air governance, vigorously develop the new energy industry has become the trend of the times. In this context, photovoltaic cables, wind power cables, nuclear power plant cables, offshore oil platform cables and other new energy cables will gradually become the next breakthrough in the direction of the cable industry.

However, these new energy cables are basically no national standards, most of the developed countries in accordance with the standards of foreign production. Most of the domestic and foreign customers may use some of the world's cable giant products, but with the rise of China's cable, these customers will be on the purchase price of products in a more competitive advantage of China. And these customers will be before the foreign cable manufacturers of product standards require Chinese cable companies. Therefore, the cable enterprises should digest and absorb foreign standards, spotted the project immediately launched, to avoid the emergence of many enterprises when the homogenization of vicious competition.