If the anode output current is significantly lower than the initial stage of the cathodic protection system, and the anode does not reach its protective life at this time, it is the most common reason to check whether the anode cable is open.

The daily maintenance of sacrificial anode cathodic protection pipe of the sacrificial anode cathodic protection way if choose daily maintenance workload is not a lot, when removing the installation requirements of the impressed current cathodic protection protection potential measurement, maintenance, test pile insulation joint detection, grounding troubleshooting work, such as advice on various parameters to determine every year.

The pipeline cathodic protection system can be repaired by measuring the output current of the sacrificial anode during annual inspection and maintenance.

. The ground resistance of the anode is the anode open circuit potential minus the anode closed circuit potential divided by the anode output current. According to the measured data to analyze the protection of the pipeline, once the anode function problems, should be taken as soon as possible to repair or replace the corresponding measures. Ammeter can be measured in series in the anode cable anode output current, can be in series in the anode cable has been 0.1ohm resistance, by measuring the voltage drop on the resistance to calculate the anode current output.