Current density

[demsha]

Hello All,

I need to calculate output current of Mg anode which protects the pipeline.
I know the area of the anode. Where can I find current density for Mg (magnesium) to soil? (we know the soil resistivity)

Thanks for your help

 

[21121956]

Hello everybody:

I hope this document can be of some help for you.

http://www.wbdg.org/ccb/DOD/UFC/ufc_3_570_02a.pdf

El que no puede andar, se sienta.

 

[SJones]

For a CP design, the design standard will specify a current density to be achieved on the pipe surface. For example, ISO 15589-1 requires between 0.08 to 0.9 mA per square metre dependent upon pipe coating and design life. This value is then used to determine the current output requirement of the anodes.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

All answers are personal opinions only and are in no way connected with any employer.