1764-28BXB A-B 绝缘电缆

SCHNEIDER XBTMEM16
PORTESCAP 57M300B5A
GE HE693PBM101
AB 1771-IFE
A-B 1756-PA72
A-B 1756-DNB/D
EtherWAN EL900-A-C-1-A
GE IC200PBI001
A-B 1756-PA72/B
LENZE LENZE EPL10200
A-B 1756-PA72/B
ABB CI801
ABB AI810
FOXBORO P0916FJ
AB 1756-DNB D
MITSUBISHI QJ71E71-100

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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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