and the solar energy and AC power are used simutaneously in some cathodic protection stations along the pipeline,while the AC power is not available,which makes the power supply reduced and cathodic protection potential declined.

• 有些管段阴极保护站的电源采用太阳能电源与交流电同步,而交流电源一直得不到解决,使送电功率减小,阴极保护电位下降。