Standard

Ac and Dc Power Supply Ground Detection Inspection, Testing and Maintenance

Abstract

This standard provides procedures for inspecting, testing and maintaining rail transit ground detection equipment.

Document History
Document Number Version Publication Date Publication Related Information
APTA RT-SC-S-020-03 Rev. 1 12/04/2025 Published Current
APTA RT-SC-S-020-03 Original 01/28/2004 Published Superseded

Keywords

ac and dc ground detection, ground detection, inspection, maintenance, signal

Summary

This standard is intended to help rail transit agencies ensure that special life/safety equipment is operational and reliable; incorporate safety considerations during the inspection and maintenance process; and identify inspection criteria and maintenance standards that provide a high level of passenger and personnel safety.

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