l 矿山、油田、化工等不能使用明火场所的电力系统绝缘防护。Used for Insulation protection of electric power system without fire.
产品性能 Properties试验项目 Test Item 抗张强度 >2.5 Mpa Tensile strength 拉断伸长率 >500% Ultimate elongation 不开裂,不变形,无可见气泡 耐热性:100℃/168h No crazing, distortion and obvious air Thermal aging bubble 自粘性(室温﹑水中24 小时) 不松脱,层间无水 Self-adhesiveness (room Not releasing, No water between layers temperature, in water, 24h) 工频介电强度 >30 KV/mm Dielectric strength 体积电阻率 >1× 14Ω·cm 10 Volume resistivity 介质损失角正切 <0.035 Dielectric loss tangent 0.018 GB/T3048.11 4.8× 14 10 GB/T1410 35 GB/T1408 Pass Pass 通过 通过 Pass 通过 GB/T7141 660 GB/T1040 3.2 GB/T1040 要求 Requirements 实测值 Results 测试方法 Test method
介电系数 <3.5 Dielectric constant 电碳痕指数(斜板法) >3.5 KV Anti-tracking voltage 3.6 GB/T6553 3.1 GB/T1409