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以某外加电流阴极保护系统为例,描述它的电化学等效电路;分析了电火花产生的必要条件是足够高的电位差;提出了用强弱交叉极化的方法,既能促使尽快进入规定的阴极保护电位区间,又能避免电火花的产生,解决了实践中的难题。
An impressed current cathodic protection system is taken as an example to describe its electrochemical equivalent circuit. The necessary condition for the generation of sparks is analyzed to be a sufficiently high potential difference. A method of cross-polarization with strong and weak currents is proposed, Provisions of the cathodic protection potential range, but also to avoid the generation of sparks to solve the practical problems.