PV cable is Solar energy technology will become one of the green energy technologies in the future, solar energy or photovoltaic (PV) It is increasingly widely used in China. In addition to the rapid development of government supported photovoltaic power plants, private investors are also actively building plants and planning to put into production solar modules for global sales.
Many countries are still at the learning stage. Undoubtedly, in order to obtain the best profits, enterprises in the industry need to learn from countries and companies that have many years of experience in solar energy applications.
Building a cost-effective and profitable photovoltaic power plant represents the most important goal and core competitiveness of all solar manufacturers. In fact, profitability depends not only on the efficiency or high performance of solar modules themselves, but also on a series of components that appear to have no direct relationship with the modules. But all these components ( E.g. cable 、 、 ) The selection shall be based on the long-term investment objectives of the Tenderee. The high quality of the selected components can prevent the solar system from being unprofitable due to high repair and maintenance costs.
For example, people don't usually connect and The wiring system of is regarded as a key component ,
However, if the special cable for solar energy application is not used, the service life of the whole system will be affected.
In fact, solar energy systems are often used in harsh environmental conditions, such as high temperature and ultraviolet radiation. In Europe, sunny days will cause the on-site temperature of the solar system to reach 100°C 。 So far, various materials we can use include PVC , rubber TPE And high-quality cross link materials, but unfortunately, the rated temperature is 90°C And even if the rated temperature is 70°C Of PVC Cables are also often used outdoors, obviously, which will greatly affect the service life of the system.
HUBER+SUHNER Solar cable has been produced twenty Years of history. Solar energy equipment using such cables in Europe has also been used twenty More than years, and still in good working condition.
Environmental stress
For photovoltaic applications, materials used outdoors should be based on UV, ozone, severe temperature changes and chemical attack. Using low-grade materials under this kind of environmental stress will cause the cable sheath to be fragile and even decompose the cable insulation layer. All these situations will directly increase the loss of cable system, and the risk of cable short circuit will also increase. In the medium and long term, the possibility of fire or personal injury is also higher.
HUBER+SUHNER RADOX ® The solar cable is an electron beam cross link cable with a rated temperature of 120°C It can withstand harsh weather environment and mechanical impact in its equipment. According to international standards IEC216 ， RADOX ® The service life of solar cable in outdoor environment is that of rubber cable eight Times, yes PVC Cable thirty-two Times. These cables and components not only have the best weather resistance, ultraviolet and ozone resistance, but also can withstand a wider range of temperature changes ( for example : from –40°C to 125°C) 。
In order to deal with the potential danger caused by high temperature, manufacturers prefer to use double insulated rubber sheathed cables ( for example :H07 RNF) 。 However, the standard version of this type of cable is only allowed to be used at a maximum operating temperature of 60°C Environment. In Europe, the temperature values that can be measured on the roof are as high as 100°C 。
RADOX ® The rated temperature of the solar cable is 120°C( Available twenty thousand hour ) 。 This rating is equivalent to 90°C Can be used at continuous temperature of eighteen year ; When the temperature is lower than 90°C Its service life is longer. In general, the service life of solar equipment is required to reach twenty to thirty More than years.
Based on the above reasons, it is very necessary to use special solar cables and components in the solar system.
Resistance to mechanical loads
In fact, during installation and maintenance, the cable can be routed on the sharp edge of the roof structure, while the cable must withstand pressure, bending, tension, cross tensile load and strong impact. If the strength of the cable sheath is not enough, the cable insulation layer will be seriously damaged, which will affect the service life of the entire cable, or lead to short circuit, fire, personal injury and other problems.
The materials cross linked by radiation have high mechanical strength. Cross linking process changes the chemical structure of polymer , Converting fusible thermoplastic materials to non fusible elastomer materials , Cross link radiation significantly improves the thermal, mechanical and chemical properties of cable insulation materials.
As the world's largest solar market, Germany has encountered all problems related to cable selection. Now in Germany, 50% The above equipment is specially used for solar energy applications HUBER+SUHNER RADOX ® Cable.
