The protective grounding and shielding grounding of the DCS system should be connected to the special electrical grounding network or grounding body in the plant area using copper-core insulated wires or cables.When the distance of the grounding connection is long,the DCS system has high requirements for grounding resistance,or the number of branch lines tapped by the grounding trunk line is large,the wire and cable with the larger cross-section in the table should be selected.
DCS系统的保护地和屏蔽地连线应使用铜芯绝缘电线或电缆连接到厂区电气专用接地网或接地体上。当接地连线距离较长、DCS系统对接地电阻要求较高或接地干线分接的支线数量较多时，宜选用表中截面较大的电线电缆。
ALLEN BRADLEY 42SRU-6002 PHOTOSWITCH IN BOX
ALLEN BRADLEY 1771-SDN B DEVICENET SCANNER MODULE (H01)
ALLEN BRADLEY 2755-DS1A BAR CODE DECODER GOOD TAKEOUT
ITT NEO-DYN 115P1C6-3520 EXPLOSION PRESSURE SWTCH ()
FANUC A16B-1211-0860 /04A MEMORY MODULE GOOD TAKEOUT
OMRON S82F-1524 POWER SUPPLY GOOD TAKEOUT
REXROTH 261-208-110-0 PNEUMATIC SOLENOID ISO VALVE (
ALLEN BRADLEY 1785-KA5 GATEWAY COMMUNICATION ADAPTER GO
