Cathodic Protection - Impact of Increased Electrical Transmission Loads

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The Cathodic Protection - Impact of Increased Electrical Transmission Loads TCI will address challenges from increased transmission loads on pipelines in shared rights-of-way due to reconductoring, new substations, and advanced technologies. The TCI will foster collaboration among stakeholders to develop best practices and guidance, raise awareness, and mitigate risks like AC corrosion and induced currents, while staying ahead of emerging trends impacting pipeline integrity.
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Reconductoring Pre-Read 

03-14-2025 01:45 PM

Introduction:
This document is intended to provide additional information about the potential impact of HVAC 
reconductoring projects on buried metallic pipelines in collocated right-of-way (ROW) corridors. Because 
reconductoring can be completed without a permit and is typically not a part of ROW or encroachment 
agreements, the increase in load may impact pipelines without any advanced notification or planning and 
result in either safety hazards through induced current shocks to personnel or through accelerated AC 
corrosion on pipelines.
Approximately 98%1 of HVAC transmission lines in the United States can benefit from reconductoring. 
While most articles and information sources reference only the United States, Canadian utilities are also 
using reconductoring to increase loads on their transmission lines. The process has been on-going for 
several years in Europe.

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Uploaded - 03-14-2025
 
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