Investigation and Mitigation of Insulated Joint Electrical Failure: A Guide (2025)
Chapter: 1 Objectives
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Suggested Citation:
"1 Objectives." National Academies of Sciences, Engineering, and Medicine. 2025. Investigation and Mitigation of Insulated Joint Electrical Failure: A Guide. Washington, DC: The National Academies Press.
doi: 10.17226/29274.
CHAPTER 1
Objectives
The objectives of the TRB TCRP Project D-20, “Investigation and Mitigation of Insulated Joint Electrical Failure,” are listed below. TCRP Research Report 255: Investigation and Mitigation of Insulated Joint Electrical Failure: A Guide documents the results of this work.
- Identify potential causes of insulated joint (IJ) electrical failures, particularly those under high currents resulting from onboard alternating-current (AC) propulsion.
- Determine and document the electrical conditions under which various types of IJ failures occur.
- Develop guidelines for maintenance personnel to diagnose IJ electrical failures and determine the best mitigation of the root causes.
- Recommend additional research needed to address the root causes of IJ electrical failures.
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