【摘要】 交流干扰对埋地管道阴极保护系统的正常运行产生影响,由于实际现场地下管线复杂,各种干扰因素很多。本工作利用实验室模拟装置来进行交流干扰对阴极保护系统影响的研究。对交流干扰下阴极保护电流密度和阴极保护电位变化的研究表明,经典的-850 mV(CSE)作为保护电位埋地金属管道阴极保护判据,在交流干扰存在的环境中将不再适用。更多还原

【Abstract】 Alternating currtnt(AC) would disrupt the normal operation of buried pipeline cathodic protection(CP) system.There are many interference factors for the complex situation of actual underground pipelines.The impact of AC interference on cathodic protection system was studied by using laboratory simulation device.The results of protection current density and the changes of protection potential under the AC interference show that the classic metal buried pipeline CP criterion,i.e.-850 mV(CSE),in the AC interference condition is not suitable.更多还原