Photovoltaic cable

Abstract

The invention relates to a photovoltaic cable. The cable comprises a fixed frame, an inner insulating layer, an outer insulating layer, a reinforcing layer, a waterproof layer and an outer sheath, wherein the fixed frame adopts a triangular structure; cable cores are arranged among the three edges of the fixed frame; the inner insulating layer wraps the cable cores; a shielding filling layer is arranged outside the fixed frame; the outer insulating layer is arranged outside the shielding filling layer; the waterproof layer is arranged outside the outer insulating layer; the reinforcing layer wraps the waterproof layer; and the outer sheath is arranged outside the reinforcing layer. The three-core structure is adopted, and the double insulating layers are arranged at the same time. Comparedwith the prior art, the cable has excellent electric transmission capability; the safety performance of the cable is improved; the cable is good in flexibility, high in stability and good in environmental protection performance and high temperature resistance, and has a good protection effect on equipment and personal safety; and the safety service life of the photovoltaic cable is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a novel photovoltaic cable. Background technique [0002] As we all know, solar energy technology will become one of the green energy technologies in the future. Solar energy or photovoltaic (PV) is widely used in China. In addition to the rapid development of government-supported photovoltaic power plants, private investors are also actively building factories. Sales will be spread all over the world, and the construction of cost-effective and profitable photovoltaic power plants represents the most important goal and core competence of all solar manufacturers. In fact, profitability does not only depend on the efficiency or high performance of the solar module itself, it is also inseparable from the photovoltaic or solar special cables that transmit electric energy. High-quality cables can prevent the solar system from being unprofitable due to high repair and maintenance costs ...

AI Technical Summary

Problems solved by technology

In fact, profitability does not only depend on the efficiency or high performance of the solar module itself, it is also inseparable from the photovoltaic or solar special cables that transmit electric energy. High-quality cables can prevent the solar system from being unprofitable due to high repair and maintenance costs , but if you fail to use special cables for solar applications, it will affect the service life of the entire system. In fact, solar systems are often used under harsh environmental conditions. In addition to high temperature and ultraviolet radiation, they are often subjected to mechanical During installation and maintenance, the cables can be routed on the sharp edges of the roof structure. At the same time, the cables must withstand pressure, bending, tension, cross tensile loads and strong impacts. If the cables themselves are not strong enough, the cables will be severely damaged. damage, or even disconnection of the conductor leads to an open circuit, thereby affecting the safe use of the entire photovoltaic system, or causing problems such as short circuits, fires, and personal injury hazards

[0003] At present, the photovoltaic cables on the market are all single-core cables. With the continuous development of science and technology, the amount of use is increasing. Single-core cables are no longer suitable for the requirements of current production and life. Moreover, since photovoltaic cables are used together with solar energy collection equipment Located outdoors, in order to ensure its durability, the temperature and strength requirements are getting higher and higher. The existing cables are often not effective in interference shielding through insulating rubber.

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