When performing a system ON test, you get a pipe-to-soil potential reading of -870 millivolts. Which statement is TRUE?
A. The protection area is too large for the anodes provided
B. The anodes are depleted or were never connected
C. Your voltmeter is probably defective
D. This is a good reading
Answer (2)
A pipe-to-soil potential reading of -870 millivolts is generally considered a good reading in cathodic protection systems, indicating effective corrosion protection. Other options suggest potential issues but do not apply in this context. Therefore, the correct answer is that this is a good reading. ;
A pipe-to-soil potential reading of -870 millivolts is typically a good indicator of effective cathodic protection. Therefore, the correct choice is that this is a good reading. This suggests that the protection systems are working to prevent corrosion adequately.
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