Photovoltaic cable

• Main Authors: CHEN QICHAO, MA ZHENQING, CHEN SONG, SUN DAZHUANG, XU LIAN, ZHANG WEI, SONG WENNA, CAO XIWEI
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to a photovoltaic cable, which comprises a conductor, an insulating layer and a sheath layer, and is characterized in that the insulating layer coats the outer side of the conductor, and the sheath layer coats the outer side of the insulating layer; the material of the insulating layer comprises the following components in parts by weight: 84-120 parts of base resin, 110-170 parts of a flame retardant modifier, 1-5 parts of a charring agent, 0.5-2 parts of an antioxidant, 1-3 parts of a lubricant, 0.5-2 parts of a cross-linking agent and 1-4 parts of a coloring agent; wherein the base resin is prepared from first EVA (Ethylene Vinyl Acetate) resin, second EVA resin, polyethylene and a polyolefin elastomer; the content of VA in the first EVA resin is 17%-19%, and the content of VA in the second EVA resin is 24%-28%. According to the photovoltaic cable provided by the invention, by adjusting the material ratio of the insulating layer, on the premise that the overall flame retardant propert