Cathodic Protection System Troubleshooting and Retrofitting

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What should you do if the test results of a cathodic protection system are incomplete or unsatisfactory?

Stop using the system immediately

Ignore the results and proceed with the system as is

Consult with a corrosion engineer

Troubleshoot and possibly add new equipment (correct)

What action might be needed if the anodes in a cathodic protection system do not provide enough voltage to protect the system?

Add more anodes (correct)

Increase the voltage elsewhere in the system

Replace the entire system

Remove all anodes

What does retrofitting refer to in the context of a cathodic protection system?

Adding new equipment to address issues found during testing (correct)

Removing all existing equipment

Consulting with a corrosion engineer

Switching to a different protection system

When should you consult with a corrosion engineer regarding cathodic protection systems?

For impressed current systems troubleshooting Signup and view all the answers

What does a reading of less than -0.85 volts indicate at an installation of a cathodic protection system?

A problem that requires troubleshooting Signup and view all the answers

What action should be taken if your voltmeter is not set to the DC volt scale when testing a cathodic protection system?

Set the voltmeter to the DC volt scale Signup and view all the answers

What should you do if the meter reading is still below -0.85 volts after ensuring the first checklist is complete?

Proceed to troubleshooting using a second checklist. Signup and view all the answers

What should you check if the coating on the tank is peeling in the dome?

The connection between the anode wire and the tank. Signup and view all the answers

When checking for continuity between the tank and the building, what does a reading below 20 ohms indicate?

There is continuity between the tank and the building. Signup and view all the answers

What action should be taken if retrofitting is needed due to worn-out anodes losing their charge over time?

Consult with your vendor for proper selection of new anodes. Signup and view all the answers

What should you use to prevent an anode wire from rubbing against a metal dome after drilling a hole to feed the wire through?

Rubber grommet or a short length of vinyl tubing. Signup and view all the answers

What should you do if voltage readings on the tank do not go up toward -0.85 volts after connecting a jumper wire between the multivalve and an anode wire?

Check for copper tubing between the tank and the building. Signup and view all the answers

When would retrofitting be necessary according to the text?

When an existing system has no anodes in place before. Signup and view all the answers

What action should be taken immediately after taking an anode out of its packaging and placing it on the ground near the tank?

Pour water on it and let it soak into the ground. Signup and view all the answers

What should you do if you need to add more anodes when testing shows that existing ones aren't providing enough voltage?

Consult with your vendor for proper selection when retrofitting. Signup and view all the answers

What is a crucial step to take before retrofitting an existing tank according to the text?

Call 811 to identify where underground utilities are. Signup and view all the answers

Cathodic Protection System Troubleshooting and Retrofitting

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