Podcast
Questions and Answers
What is the purpose of the continuous current source in the impressed current cathodic protection method?
What is the purpose of the continuous current source in the impressed current cathodic protection method?
What is the purpose of the ground bed in the impressed current cathodic protection method?
What is the purpose of the ground bed in the impressed current cathodic protection method?
What is the purpose of burying the anodes in coke breeze backfill in the impressed current cathodic protection method?
What is the purpose of burying the anodes in coke breeze backfill in the impressed current cathodic protection method?
What is the purpose of using shallow ground beds in the impressed current cathodic protection method?
What is the purpose of using shallow ground beds in the impressed current cathodic protection method?
Signup and view all the answers
What is the purpose of using vertical ground beds in the impressed current cathodic protection method?
What is the purpose of using vertical ground beds in the impressed current cathodic protection method?
Signup and view all the answers
What is the purpose of the whole structure being at one potential in cathodic protection?
What is the purpose of the whole structure being at one potential in cathodic protection?
Signup and view all the answers
What is the purpose of digging deep wells of the closed type in areas with very high specific resistance?
What is the purpose of digging deep wells of the closed type in areas with very high specific resistance?
Signup and view all the answers
What material is commonly used for sacrificial anodes in cathodic protection systems?
What material is commonly used for sacrificial anodes in cathodic protection systems?
Signup and view all the answers
What role does the sacrificial anode play in a cathodic protection system?
What role does the sacrificial anode play in a cathodic protection system?
Signup and view all the answers
Why is a metallic connection installed between the sacrificial anode and the structure in a cathodic protection system?
Why is a metallic connection installed between the sacrificial anode and the structure in a cathodic protection system?
Signup and view all the answers
In order for the sacrificial anode method to work, what two other conditions must exist besides the anode and cathode?
In order for the sacrificial anode method to work, what two other conditions must exist besides the anode and cathode?
Signup and view all the answers
What does Step 1 of designing an Impressed Current Cathodic Protection System involve?
What does Step 1 of designing an Impressed Current Cathodic Protection System involve?
Signup and view all the answers
What is the primary purpose of Step 1 in the design process?
What is the primary purpose of Step 1 in the design process?
Signup and view all the answers
Which step involves calculating the number of anodes needed to satisfy the manufacturer's current density limitations?
Which step involves calculating the number of anodes needed to satisfy the manufacturer's current density limitations?
Signup and view all the answers
What variable represents the recommended maximum current density output in the equation given in Step 4?
What variable represents the recommended maximum current density output in the equation given in Step 4?
Signup and view all the answers
In the equation given in Step 5, what does the variable 'n' represent?
In the equation given in Step 5, what does the variable 'n' represent?
Signup and view all the answers
Which variable in the equation given in Step 6 represents the soil resistivity?
Which variable in the equation given in Step 6 represents the soil resistivity?
Signup and view all the answers
According to Step 7, what determines the final number of anodes to be used in the design?
According to Step 7, what determines the final number of anodes to be used in the design?
Signup and view all the answers
What is the first step in designing a galvanic cathodic protection system?
What is the first step in designing a galvanic cathodic protection system?
Signup and view all the answers
Which equation is used to calculate the anode groundbed resistance in an impressed current cathodic protection system design?
Which equation is used to calculate the anode groundbed resistance in an impressed current cathodic protection system design?
Signup and view all the answers
What is the purpose of calculating the total circuit resistance in an impressed current cathodic protection system design?
What is the purpose of calculating the total circuit resistance in an impressed current cathodic protection system design?
Signup and view all the answers
Which step in the galvanic cathodic protection system design involves selecting the number of anodes to be used?
Which step in the galvanic cathodic protection system design involves selecting the number of anodes to be used?
Signup and view all the answers
What is the purpose of calculating the groundbed header cable resistance in an impressed current cathodic protection system design?
What is the purpose of calculating the groundbed header cable resistance in an impressed current cathodic protection system design?
Signup and view all the answers
Which step in the impressed current cathodic protection system design involves preparing plans and specifications?
Which step in the impressed current cathodic protection system design involves preparing plans and specifications?
Signup and view all the answers
What is the primary purpose of cathodic protection?
What is the primary purpose of cathodic protection?
Signup and view all the answers
How does cathodic protection work to reduce corrosion?
How does cathodic protection work to reduce corrosion?
Signup and view all the answers
What is the relationship between the electric current and the corrosion rate in a metal?
What is the relationship between the electric current and the corrosion rate in a metal?
Signup and view all the answers
What is the key principle behind cathodic protection?
What is the key principle behind cathodic protection?
Signup and view all the answers
What is the primary way that cathodic protection is applied to a structure?
What is the primary way that cathodic protection is applied to a structure?
Signup and view all the answers