AMPP CP4 Specialist study materials
AMPP CP4 Specialist study resources

AMPP CP4 Specialist study plan

AMPP CP4 Specialist · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Principles and procedures for CP design on a variety of structures for galvanic systems & Theoretical concepts and considerations influencing design and calculations (including attenuation)

  • Define galvanic cathodic protection theory and the electrochemical basis for anode-to-structure current flow

  • Differentiate galvanic anode materials (zinc, aluminum, magnesium alloys) by driving potential, efficiency, and environment suitability

  • Explain how soil resistivity and electrolyte chemistry govern galvanic anode output and current distribution

  • Compute galvanic anode current output using Ohm's law and anode-to-electrolyte resistance relationships

Your checkpoint

One-page comparison table of galvanic anode alloys with driving potential, consumption rate, and application notes, plus three worked current-output calculations

Week 2

Principles and procedures for CP design on a variety of structures for galvanic systems & Theoretical concepts and considerations influencing design and calculations (including attenuation)

  • Size galvanic anode banks for coated and uncoated buried pipelines using current demand and coating quality factors

  • Calculate required anode mass from current demand, design life, and anode consumption rate

  • Apply attenuation principles to predict potential and current distribution along a protected structure

  • Determine anode spacing and grounding requirements for uniform protection

Your checkpoint

Complete galvanic anode sizing calculation package for a buried pipeline case with mass, count, spacing, and attenuation check

Week 3

Principles and procedures for CP design on a variety of structures for galvanic systems

  • Design galvanic CP for a buried tank bottom and explain why galvanic systems suit this geometry

  • Select and position anodes for a galvanic system on a marine hull or ballast tank

  • Identify interference risks and mitigation for galvanic systems near foreign structures

  • Specify test stations, reference electrodes, and monitoring points for a galvanic installation

Your checkpoint

Written galvanic design summary for one tank and one marine structure including anode layout sketch description and monitoring plan

Week 4

Principles and procedures for CP design on a variety of structures for impressed current systems & Theoretical concepts and considerations influencing design and calculations (including attenuation)

  • Explain impressed current system components and how rectifier output drives protection over long distances

  • Calculate rectifier voltage and current requirements from anode bed resistance and back-EMF

  • Compare impressed current anode types (mixed metal oxide, graphite, high-silicon cast iron) by application and life

  • Apply attenuation to size impressed current systems for long pipelines and congested anode beds

Your checkpoint

Impressed current design calculation for a long pipeline including rectifier sizing, anode bed resistance, and attenuation curve

Week 5

Principles and procedures for CP design on a variety of structures for impressed current systems

  • Design an impressed current anode bed for a buried tank farm including geometry and spacing

  • Select anode groundbed configuration (deep vertical, shallow horizontal, distributed) for given soil and site constraints

  • Specify rectifier ratings, taps, and electrical isolation for a multi-structure impressed current system

  • Identify stray current and interference sources from impressed current systems and propose mitigation

Your checkpoint

Impressed current groundbed design package with anode count, spacing, rectifier specification, and interference mitigation notes

Week 6

Principles and procedures for CP design on a variety of structures for impressed current systems & Principles and procedures for CP design on a variety of structures for galvanic systems

  • Design impressed current CP for marine and offshore structures including hull, ballast tanks, and seawater systems

  • Compare galvanic versus impressed current selection criteria for a given structure and justify the choice

  • Calculate coating breakdown factors and current demand over the design life

  • Integrate reference electrode placement and remote monitoring into impressed current designs

Your checkpoint

Comparative design memo selecting galvanic or impressed current for two structures with current demand calculations and justification

Week 7

Theoretical concepts and considerations influencing design and calculations (including attenuation)

  • Derive and apply attenuation equations for coated and uncoated structures

  • Calculate protection potential profiles along a pipeline for both system types

  • Explain how coating conductance, soil resistivity, and anode spacing affect attenuation length

  • Evaluate design sensitivity to changing resistivity and coating condition

Your checkpoint

Attenuation problem set with five solved profiles and a sensitivity analysis table

Week 8

Principles and procedures for CP design on a variety of structures for galvanic systems & Principles and procedures for CP design on a variety of structures for impressed current systems & Theoretical concepts and considerations influencing design and calculations (including attenuation)

  • Integrate galvanic, impressed current, and theoretical concepts into a full design review checklist

  • Re-solve missed or weak calculation types from prior weeks under timed conditions

  • Explain criteria for protection (100 mV polarization, -850 mV, -1200 mV limits) and how they drive design decisions

  • Prepare concise design justification narratives for each system type

Your checkpoint

Full mock design review: one galvanic and one impressed current design scenario solved end-to-end with attenuation and criteria checks, scored against a self-built rubric

Milestones

Week 2: Can size a galvanic anode bank and compute anode mass for a stated design life without notes

Week 4: Can size a rectifier and anode bed resistance for a long pipeline and sketch the attenuation profile

Week 6: Can justify galvanic vs impressed current selection for two structures with supporting calculations

Week 8: Scores 80% or higher on the full mock design review covering all three domains