描述
电缆屏蔽层必须一点接地,如果电缆屏蔽层两端A、B都接地,就存在地电位差,则有电流流过屏蔽层,当发生异常状态如雷击时,地线电流将更大。此外,屏蔽层、接地线和大地有可能构成闭合环路,在变化磁场的作用下,屏蔽层内有会出现感应电流,通过屏蔽层与芯线之间的耦合,干扰信号回路
Endress + Hauser CLS21-C1E4A Liquid Analysis Sensor
DYNAX YUDO-STAR YUCON-400 TT53-0C-102-GYS Control Panel
COOPER CEAG Steuerteil ZB-S 40071347891 Controller NEW
STULZ Cosmotec Industrial Cooling EHE2800220Z000K 220V
Lot of 2 Agilent G3430-60150 Analog Power PCA SOLD ASIS
extreme networks 50015 BD 6800 MSM64i 801010-01-08 New
NetApp 111-J9793RC+B2 110-00112+A0 FAS3020 Motherboard
New SUGIYAMA PS-661 MALFUNCTION DETECTOR SAFETY DEVICE