Cathodic Protection - 100mV Shift
Cathodic Protection - 100mV Shift
(OP)
Dear Gentlemen,
I am new for this forum.
In impressed current CP, what is the significance of 100mV shift?
I knew that reference potential will be measured after immediate switching of Anode current.
Advanced thanks...
I am new for this forum.
In impressed current CP, what is the significance of 100mV shift?
I knew that reference potential will be measured after immediate switching of Anode current.
Advanced thanks...





RE: Cathodic Protection - 100mV Shift
The 100mV shift is usually measured as the arithmetic difference between the instant off and the static potential (if you have that data). You could also measure the decay in potential from the instant off over a period of time (e.g. 4 hours for steel in concrete).
It's not practical in areas w/stray DC ground voltages and cannot be interpreted properly unless you simultaneously interrupt all DC current sources.
RE: Cathodic Protection - 100mV Shift
pl. explain about which areas 850 mV criterion cannot/should not be used.
RE: Cathodic Protection - 100mV Shift