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Aluminum alloy sacrificial anode

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Sacrifice the advantages and disadvantages of the anode

  • Author:Libo
  • Source:wwww.hellobodies.com
  • Date:2021-06-11
  • Click:0

Sacrifice the advantages and disadvantages of the anode


Cathodic protection with sacrificial anode generally does not require great technical cost. Once the protection system is installed, its operation requires little maintenance, just an occasional check of potential or protection current. Sacrificial anode systems can be installed in areas at risk of explosion.


The sacrificial anode should be used if it is overly calendered such as the strip or if the reaction product can increase the additive function (see section 7.1). In use, if it is necessary to increase the current output, it is practicable only to increase the external voltage. In special cases, if the installation should be excavated separately. The anode is connected to a locally hazardous structure (such as when interfered by an external cathode voltage cone), and the power supply, because the drive voltage is low, does not interfere with the destruction of adjacent structures. There is no safety issue because the voltage is low. Lines require little maintenance, just an occasional check on potential or protection current. The sacrificial anode protection system does not require ac.


However, the use of sacrificial anodes in poorly conductive media and soils is limited by the low driving voltage. In order to prevent corrosion in the soil, the anode can be close to the protected structure, buried in the same pit, so in fact do not need to use the vehicle anode cathodic protection generally does not need a lot of technical costs.


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