由于电气控制系统中经常会受到感应电的干扰,往往会造成一些信号继电器自动吸合或吸合后不能正常脱开现象,且其查找困难、处理起来也较为棘手,给安全生产带来较大隐患。生产实际中,我们对DCS系统DI点上感应电的处理措施,总结出“堵、疏、避,改”4种方案。1堵将电缆内暂时不用的备用线全部单端接地,这相当于在被感应电缆四周加装了少许屏蔽层,但因备用线芯一般较少,屏蔽能力较差,在感应电较小时可以 As the electrical control system often will be induced by the interference of electricity, tend to cause some of the signal relay automatically pull or pull the phenomenon can not be properly disconnected, and its difficult to find, is also more difficult to handle, to bring greater safety Hidden trouble. Production practice, we point DCS on the induction of electricity DI treatment measures, summed up “plugging, sparse, avoid, change ” four kinds of programs. 1 plug the cable temporarily unused spare line all single-ended ground, which is equivalent to the sensing cable is installed around a little shield, but generally less spare core, shielding ability is poor, the induction can be small