Weatherproof solar photovoltaic cable and fabricating method thereof

Abstract

The invention discloses a weatherproof solar photovoltaic cable and a fabricating method thereof. The weatherproof solar photovoltaic cable comprises a conductor, an insulation layer, an isolating layer and an outer protecting layer, wherein the conductor sequentially extrudes and covers the insulation layer and the isolating layer from inside to outside, and the insulation layer and the isolating layer are both polyolefine plastics crosslinked by the irradiation equal to or less than 105 DEG C. The fabricating method comprises the following steps: firstly, wiredrawing core-made metal, annealing and tinning the wiredrawn metal, fabricating the conductor, extruding and covering the insulation layer on the surface of the conductor; secondly, extruding and covering the outer protecting layer on the outer surface of the insulation layer; thirdly, performing the electron irradiation processing to the conductor extruded and covered with the insulation layer and the isolating layer by an electron accelerator through adopting an irradiation crosslinking process; wherein the irradiation crosslinking condition is as follows: the irradiation dose is 10-20mrd. The invention not only has best weather resistance, ultraviolet radiation resistance and ozone erosiveness resistance, but also can bear temperature change with wider range, for example, from 40 DEG C below zero to 125 DEG C, and is simple and feasible.

Description

technical field [0001] The invention relates to a cable and a manufacturing method, in particular to a weather-resistant solar photovoltaic cable and a manufacturing method, which are suitable for use in places with high weather resistance and high temperature grades. Background technique [0002] With the increasingly widespread application of solar energy or photovoltaic technology, people also regard the wiring system connecting photovoltaic modules as a key component, because solar energy systems are often used under harsh environmental conditions, such as high temperature and ultraviolet radiation. The site temperature is higher than 100°C. At present, PVC insulated cables are limited in their scope of application due to the disadvantages of low temperature resistance, low carrying capacity, easy aging, easy cracking, large dielectric loss, high toxicity index and poor environmental performance. , Even the rubber-sheathed cable with a temperature resistance of 90°C grea...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the cross-linked cables commonly used at home and abroad are generally chemical cross-linked cables, and their temperature resistance level is only 90°C, which has not yet reached the temperature resistance level of 105°C.

Images