Forced current cathodic protection technology is in the circuit into a series of DC power supply, with the help of an auxiliary anode, direct current to the protected metal, and then the protected metal into a cathode, the implementation of protection.

Advantages:

1: High driving voltage, can flexibly control the cathodic protection current output in a wide range, suitable for occasions with a large protection range

2: When insoluble or slightly soluble auxiliary anode is selected, long-term cathodic protection can be carried out

3: In the harsh corrosion conditions or high resistivity environment is also suitable

4: the protection range of each auxiliary anode bed is large. When the pipeline anticorrosive layer is of good quality, the protection range of a cathodic protection station can reach tens of kilometers

5: the bare or anticorrosive layer of poor quality pipeline can also achieve complete cathodic protection!