QJ71E71-100 MITSUBISHI 装置

Schneider 140ACO02000
SCHNEIDER 140NOE77111
A-B 1746-NO4I
GE IC200PBI001-FG
GE IC200PBI001
Siemens 6ES7155-5AA01-0AB0
SCHNEIDER 140DAI75300
A-B 22A-D6P0N104
A-B 1756-PA75/B
A-B 1756-PA75/B
SCHNEIDER 140CPS11420
Siemens 6ED1053-1FB00-0BA2
WESTINGHOUSE 5X00121G01
WESTINGHOUSE 5X00121G01
WESTINGHOUSE 5X00121G01
ULTRA SLIMPAK G448-0002

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Description

用一根大截面铜母线(或绝缘电缆)连接各装置的柜体中心接地点,然后将接地母线直接连接接地极。接地线采用截面大于22 mm2的铜导线,总母线使用截面大于60mm2的铜排。接地极的接地电阻小于2Ω,接地极最好埋在距建筑物10 ~ 15m远处(或与控制器间不大于50m),而且PLC系统接地点必须与强电设备接地点相距10m以上。

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