FZ-5101 灼热丝试验仪 GLOW-WIRE TESTING INSTRUMENT IEC884-1、GB2099.1、VDE、GB4706.1、GB/T5169.4部件或零件在故障或过载条件下,可能达到过高的温度或点燃它们附近的零件,灼热丝试验模拟灼热元件或过载的电阻