In order to obtain photovoltaic cable insulation materials with excellent comprehensive performance,polyethy-lene(PE)was used as the substrate,and a blending process was used to melt and blend PE,ethylene vinyl acetate co-polymer(EVA),flame retardant,and filler to prepare a photovoltaic cable insulation material.The microstructure char-acterization and performance comparison analysis were carried out with five selected commercial photovoltaic cable insu-lation materials.The results show that the melting index of the insulation material is 0.89 g/(10 min),the tensile strength and average elongation at break are 11.1 MPa and 364％respectively,and the volume resistivity is as high as 2.08×1013 Ω·m.Compared to the five selected commercial photovoltaic cable insulation materials,the prepared insu-lation materials have excellent performance in all aspects and have broad practical application prospects.
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