Cathodic Protection Design for Underground Pipes
Example computations formulas       Using Magnesium Anodes        Example computations example

 Distributed Anode Design  Program will develop a Distributed Anode Design  Multiple Anode Groundbed Design  Program will develop a Multiple Anode Groundbed Design
  Pipe Length  =     ft.   Length of the struture.
Anode Type =      Anode type
  Pipe Diameter =      Diameter of the struture.
Anode Size =      Anode size
Coating Quality =       Coating quality as a percentage
Design Life =    yrs.   Design Life
 Current Density =       Current density (amps per sq. ft.) to polarize the struture.
Anode Spacing =    ft.  Anode spacing
Soil Resistivity =    ohm-cm. Soil resistivity in the area
   

Calculated

Quantities
Surface Area =   sq. ft.  Surface Area Anode Quantity =    Anode Quantity
Anode Spacing =   ft. Anode Spacing in feet. Expected Life =   yrs.   Expected Life
Current Requirement =   amps Current Requirement
Expected Polarized Potential =   volts Current Output
Output Current =   amps Current Output
   
Recommendations Recommendations based on commonly accepted practices.
Surface Area =   sq. ft.  Surface Area Anode Quantity =    Anode Quantity
Anode Spacing =   ft. Anode Spacing in feet. Expected Life =   yrs. Expected Life
Current Requirement =   amps Current Requirement
Expected Polarized Potential =   volts Current Output
Output Current =   amps Current Output
   
Recommendations   Recommendations based on commonly accepted practices.
Life of the cathodic protection system depends on the polarized potential of the pipe (and other quantities).
If actual polarized potential of the pipe differs from the calculated (anticipated) polarized potential, the life of the system will differ proportionately from the calculated (expected) life.
Courtesy of
CP Design Center
by
MESA Products, Inc.
logo
http://mesaproducts.com

© 2001 by MESA Products. All rights reserved.
Created by
delweg logo