型号 type 3r7.2/8.0×10-75 3r7.2/8.0×10-75(l) 3r7.2/8.0×10-75t3r7.2/8.0×10-90 3r7.2/8.0×10-90(l) 3r7.2/8.0×10-90t3r7.2/8.0×10-150 3r7.2/8.0×10-150(l) 3r7.2/8.0×10-150t3r7.2/8.0×10-230 3r7.2/8.0×10-230(l) 3r7.2/8.0×10-230t3r7.2/8.0×10-350 3r7.2/8.0×10-350(l) 3r7.2/8.0×10-350t3r7.2/8.0×10-470 3r7.2/8.0×10-470(l) 3r7.2/8.0×10-470t3r7.2/8.0×10-600 3r7.2/8.0×10-600(l) 3r7.2/8.0×10-600t
标称直流击穿电压nom.dc spark-over voltage vs 75 90 470 600v
直流误差tolerance of vs ±20 ±20 ±20 190-260
(mdf)±20 ±20 ±20 ±20 %
冲击击穿电压impulse spark-over voltage ≤700 ≤700 ≤700 ≤800 ≤800 ≤900≤1200 v
标称耐冲击电流nom.impulse discharge current
波形/wave8/20μs 20/10 20/10 120/10 20/10 10 10 10 ka
标称耐冲击电流nom.impulse discharge current
波形/wave10/100μs 100(mdf) a
标称耐工频电流50hz nom.alternating discharge current 20/10 20/10 20/1020/10/5(mdf) 10 10 10 a
绝缘电阻 insulation resistance ≥5 ≥5 ≥5 ≥5 ≥5 ≥5 ≥5 gω
电容 capacitance ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5 pf
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