... 173-2002 computer information system lightning protector Meteorology standard: QX 10.1—2002 Surge Protective Device Part one: performance requirements and ... 4000m;1.2.2 Temperature of surrounding environment :normal scope:-5~+40º,extend scope: -40~+70º1.2.3 Relative humidity of atmosphere: indoor ... kA·Normal discharge current (8/20µs) In 5 ,10 ,20 ,30,40, 50, 60,70 kA BY6 series Surge Protective Devices ...