What is the technical performance of PV Cable produced by PV Cable producer?

 1, the insulation resistance at 20 ℃ resistance ρ ≤ 4.95 Ω / km; jacket surface resistivity ρ ≥ 109 Ω.cm.

2, pressure test the water temperature 20 ± 5 ℃, immersion length 10M, time 1H, AC power frequency voltage 8000V, maintained 5min without breakdown.

3, the combustion test vertical burning test: the fixed point and the beginning of carbonation distance ≥ 50mm; burning down retardant first fixed-point distance ≤ 540mm; combustion gas corrosion test: PH value ≥ 4.3, conductivity ≤ 10μ S / mm.

4, the inner insulation before the tensile test the mechanical properties of aging: Tensile strength ≥ 5N/mm2, elongation at break ≥ 200%; aging (135 ± 2 ℃), tensile strength variation ≤ ± 30%,, fracture elongation growth rate changes ≤ ± 30%; air bomb aging tensile test: the air pressure 5.5bar (127 ℃) tensile strength variation ≤ +30%, elongation at break variation ≤ +30%; thermal extension test: oven temperature of 250 ± 3 ℃, mechanical stress 20N/cm2 load elongation ≤ 100%, unloaded elongation ≤ 25%.

5, the sheath before the tensile mechanical properties of aging: Tensile strength ≥ 10.0N/mm2; elongation at break ≥ 300%; aging (85 ± 2 ℃): elongation at break ≥ 250%; changes in tensile strength ≤ ± -15%; elongation change ≤ -25%.

6, weathering test jacket temperature bending test: freezer temperature -40 ± 2 ℃, 16 hours, test visual inspection can not see cracks; inner insulation and sheath resistance to ozone: ozone concentrations 250-300pphm, 24h, depending on 180o curved part of the inspection without cracking; jacket weather resistant cycle: sprinkler 18min, 102min test xenon lamp drying temperature 45 ± 5 ° C for at least 500h total tests conducted at room temperature followed by the 7.1 bending test, no cracks.