Recommended Practice

Gap and Creepage Distance

Abstract

This recommended practice describes a method to determine the minimum safe gap and creepage distance for passenger rail vehicle electrical circuits and cabling where potentials do not exceed 2000 V to ground.

Document History
Document Number Version Publication Date Publication Related Information
APTA PR-E-RP-004-98 Rev. 3 05/28/2021 Published Current
APTA PR-E-RP-004-98 01/22/1998 Published Superseded

Keywords

 cabling, gap, creepage distance, electrical circuits, passenger rail vehicle

Summary

This recommended practice applies to passenger rail vehicle electrical circuits and cabling where potentials do not exceed 2000 volts to ground. The passenger rail industry phased in this recommended practice over the six-month period from July 1 to Dec. 31, 1999. It took effect January 1, 2000.

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