Cathodic Protection - Monitoring and Maintenance

This is the sixth in a series of presentations by the South East Branch of PIG in the field of external pipe corrosion and cathodic protection.

This presentation explains the requirements and the practicalities of pipeline cathodic protection monitoring and maintenance for non-specialists.

It explains why the monitoring is necessary and what maintenance is recommended. The main pipeline above-ground survey techniques are discussed.

An example of the very latest technical developments in the reporting of routine monitoring and maintenance surveys is given.

A Pipeline Designer's Guide to Cathodic Protection

As part of our ongoing free webinar series with The Pipeline Industries Guild, our latest presentation “Pipeline Designer’s Guide to Cathodic Protection” is now available on YouTube.

The aim of the presentation is to provide information to pipeline designers on the factors that can influence the effectiveness of the external corrosion protection system - coatings, cathodic protection and electrical interference.

The technical information is given in such a way that it is understandable to people that are not corrosion specialists.

High Speed AC Railways & Pipelines - Corrosion and Safety Risks

This presentation was made by Ken Lax, Technical Director of Corroconsult, on behalf of the Pipeline Industries Guild (PIG) Onshore Panel as part of their ongoing free webinar series.

The aim of the presentation is to provide information to pipeline operators about the risk of accelerated corrosion and unacceptable touch potentials caused by high speed AC trains.

The presentation covers the following:

• Corrosion risks

• Risks to Personnel and the Public

• Induction

• Conduction

• Mitigation

The presentation makes reference to the relevant sections of the following standards:

• ISO 18086

• BS EN 50443

• IEC 60050-195-05-09

• BS EN 50122-2

• BS EN 50162

• ISO 21857

Additional content for the presentation prepared by Richard Lindley (Corroconsult), Matthew Bamber (Corroconsult) and Charalambos Charalambous (University of Cyprus).

Beginners' Guide to Cathodic Protection

This presentation was made by Ken Lax, Technical Director of Corroconsult, on behalf of the Pipeline Industries Guild (PIG) Onshore Panel as part of their ongoing free webinar series.

The presentation is intended for non-specialists to provide an overview of cathodic protection and stray current corrosion.

No electrical or electrochemical knowledge is assumed.

The presentation is non-mathematical and with only a sprinkling of science. It is a description of the processes, rather than a technical analysis.

The presentation covers the following;

• Why steel corrodes

• The role of coatings

• Pipeline Cathodic Protection - General Description

• Cathodic Protection - Galvanic / Sacrificial Anodes

• Cathodic Protection - Impressed Current

• Efffects of DC Stray Currents on External Corrosion

• Effects of Induced AC on External Corrosion

How can Solar Farms affect Buried Pipelines and what can be done about it?

This presentation was made by Ken Lax, Technical Director of Corroconsult, on behalf of the Pipeline Industries Guild (PIG) Onshore Panel as part of their ongoing free webinar series.

The presentation is aimed as a non-tenchnical introduction to this rapidly growing phenomenon, within the field of corrosion, as the scale and number of photovoltaic (PV) systems, i.e. solar farms, increase worldwide.

No electrical or electrochemical knoweledge is assumed.

An overview of the following is given;

• External corrosion on buried pipelines

• Cathodic protection and coatings

• Effects of stray current on external corrosion

• Photovoltaic (PV) system construction components

• Sources of electrical interference from PV systems

• Prevention of stray currents from PV systems

• Mitigation of adverse effects on buried pipelines

The scope of the presentation covers the follwoing three possibilities;

• New PV System with Existing Pipeline

• Existing PV System with Existing Pipeline

• Existing PV System with New Pipeline

All slides prepared by Ken Lax and Richard Lindley (Projects Director at Corroconsult UK Limited) with additional content provided by Professor C. Charalambous (Univeristy of Cyprus) and Dr Thomas Löffler (Dekotec).