Future Development Trends of New Energy Cables

New energy wires and cables will be the development goal of wires and cables. New energy cables can generally be divided into photovoltaic cables, wind power cables, cables for offshore oil platform, cables for nuclear power plants, cables for electric locomotives, and cables for inland conventional and unconventional natural gas development. The following editor will introduce several main categories and performance of new energy cable products, domestic and international application standards, and development prospects.
Wind power cable
Wind energy, as a clean and renewable energy source, is currently the most large-scale, technologically mature, and commercially promising power generation model among many new energy sources. According to public information, the available wind energy resources in mainland China and its coastal areas have reached nearly 1 billion kW. According to China's "Renewable Energy Medium and Long Term Development Plan", the total installed capacity of wind power in China reached 30 million kW in 2020, and 2013-2020 is still a promising golden period. Wind power generation cables include control cables, signal cables, and twist resistant power cables in the wind turbine cabin and tower. Due to the harsh wind farm environment and the twisting of power cables with the swinging of the impeller, wind power generation cables generally require high requirements, such as low temperature resistance, oil resistance, torsion resistance, climate resistance, UV resistance, acid and alkali resistance. Currently, there is no national standard for wind power generation cables in China, Only industry standards such as TICW01-2009 "Twist resistant Flexible Wires for Wind Power Generation with Rated Voltages of 1.8/3kV and Below" issued by the National Wire and Cable Quality Supervision and Testing Center.
Tower cable is the most commonly used cable in wind power generation systems, and we often refer to wind power cables as such. Due to the continuous forward and backward swing of the tower cable with the wind turbine, the performance requirements of the tower cable are extremely strict, which not only ensure the structure is soft, but also require high tensile strength, low temperature resistance (-40 ℃), UV resistance, torsion resistance, salt spray resistance (such requirements exist in offshore wind power plants), seawater corrosion resistance, friction resistance, climate aging resistance, flame retardancy, and other properties.
Photovoltaic cable
The development of solar energy has shown a spray well development in recent years. As of the end of 2010, China's installed capacity of solar photovoltaic power generation has reached 893 MW, ranking 7th in the world. Expected until 2020
In, the total installed capacity of solar photovoltaic power generation in China will exceed 30000 MW. The country also provides support for photovoltaic construction projects. Photovoltaic power generation has driven the rapid development of related products, such as photovoltaic cables.
Usually, the low-voltage direct current generated by photovoltaic power generation needs to be converted into alternating current, and the connecting cable between photovoltaic cells and AC/DC inverters is the photovoltaic cable. In theory, a photovoltaic module typically requires 2 0 8-1
The single core cable between m, so if we follow the corresponding development speed of photovoltaic modules, the usage of photovoltaic cables in China will reach about 150000 km by 2020, with a large demand space.
The abbreviation for photovoltaic cable is PV cable, which has a relatively simple structure, including conductor, insulation, and sheath. There is currently no national standard for photovoltaic cables in China, and the most authoritative certification for photovoltaic cables internationally is TUV Rheinland TUV
MARK and UL certification mainly refer to standard 2 Pfg 1169 or UL 4703, and the samples need to be sent to Germany or the United States, so the certification cycle is longer, the cost is higher, and the design focus of each sample is different.
The general performance requirements for photovoltaic cables are as follows: the thermal life of the cable insulation and sheath shall not be less than 25 years in a 120 ℃ environment. The cable shall undergo dynamic penetration test, single vertical combustion test, -40 ℃ low temperature test, and acid alkali test, damp heat test, ozone test, and climate resistance test. However, there are differences in the application environment of photovoltaic cables, so the design should consider the laying location, such as preventing small animals such as mice from biting. Shanghai Cardiff Cable Co., Ltd. specializes in the production of new energy cables, and its products are exported to major enterprises around the world, receiving unanimous praise from customers
Nuclear grade cable
The construction and trade-off of nuclear power plants is one of the most concerning topics for countries in the 21st century. Whether it is the nuclear crisis in Iran and North Korea, the Fukushima nuclear leak in Japan, or the referendum in some European countries, all revolve around the trade-off of nuclear power. However, regardless of the choice, the number of cables required for each nuclear power plant is enormous.
International Standard IEEE383 "Nuclear Power Plant Applications
The type tests for IE cables, on-site joints, and connections, as well as the RCC-E "Rules for the Design and Construction of Nuclear Island Electrical Equipment," stipulate the emergency shutdown of the reactor, containment isolation, emergency cooling of the core, residual heat export of the reactor, and residual heat export of the reactor building.
Chinese standard GB22577-2008 "1E for nuclear power plants
General Requirements for Nuclear Grade Cables "specifies the general requirements for nuclear grade cables. The safety level of electrical system equipment with functions such as preventing the large-scale discharge of radioactive substances into the surrounding environment is defined as 1E level. In China, IE level equipment can be divided into K1, K2, and K3 according to the usage environment and quality appraisal requirements
There are three types, among which the K3 quality appraisal program is used to verify the ability of equipment installed outside the containment vessel to perform its specified functions under normal environmental conditions and specified accident conditions for some equipment.
The cables identified by the K3 quality appraisal program are referred to as "K3 type cables". The insulation core of the lE class K3 control and instrument cables used in nuclear power plants must meet excellent mechanical, electrical, and heat resistance performance, pass a single vertical combustion test, have low smoke, halogen-free, low toxicity, and low corrosion characteristics, and its service life should exceed 40 years.
With the increasingly serious problem of air governance, vigorously developing the new energy industry has become a trend. In this context, photovoltaic cable, wind power cable, nuclear power plant cable, offshore oil platform cable, etc