Ground resistivities. Resistivity measurements. Temperature and pressure effects. Effects on corrosion. Spread of protective currents. Effects on monitoring measurements. Groundbed siting. Practical work with Mega, soil boxes, resistivity cells etc. Report and on-line real-time discussion.
Created by: Pipeline Corrosion Control
Last updated 11/2025 English
7 sections • 72 lectures • 12h 38m total length
Ground resistivities are very much misunderstood and should be addressed from scratch. Regard the pipes as conductors set in a pcb (Printed Circuit...
Add to CartThere are several conventional methods to measure the resistivity of the ground for the purposes of cathodic protection. The most commonly used is the...
Add to CartThe resistivity of the electrolyte has two affects on corrosion and corrosion control....
Add to CartCathodic protection current is governed by the laws of electricity. The measurement of the spread of cathodic protection currents is outside of the...
Add to CartAny cathodic protection surveyor will tell you that watering dry ground 'improves' the readings. What do they mean by IMPROVE? They mean that th...
Add to CartThere is nothing mysterious about a cathodic protection impressed current groundbed. People add a mystery by using acronyms such as ICCPGB and TR in t...
Add to CartThe megger is a portable instrument used to measure insulation resistance. The megger consists of a hand-driven DC generator and a direct reading ohm...
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