FieldengCathodic Protection
Single Vertical Anode Resistance
Anode-to-electrolyte resistance of a single vertical cylindrical anode.
Cathodic Protection
Anode-to-electrolyte resistance of a single vertical cylindrical anode.
App id: ANODE-01. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
R = ρ/(2πL)[ln(4L/d) − 1]Inputs
| Name | Unit |
|---|---|
| Soil resistivity | ohm-cm |
| Anode length | ft |
| Anode diameter | in |
Outputs
| Name | Unit |
|---|---|
| Anode resistance (hero result) | ohm |
Diagnose
This tool does not attach diagnose observations.
Assumptions
- Dwight-type cylindrical vertical anode in infinite homogeneous soil. Additional geometries are not included.
Provenance
- NACE/AMPP CP training.
- Formula R = ρ/(2πL)[ln(4L/d) − 1].