1. LawStack
  2. Title 49 - Transportation
  3. Subtitle B - OTHER REGULATIONS RELATING TO TRANSPORTATION
  4. Chapter II - FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  5. Part 236 - RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
  6. Subpart A - Rules and Instructions: All Systems
  7. Topic - General
  8. 49 CFR § 236.9
49 CFR § 236.9
Selection of circuits through indicating or annunciating instruments
November 18, 2020
CFR

Signal control and electric locking circuits shall not be selected through the contacts of instruments designed primarily for indicating or annunciating purposes in which an indicating element attached to the armature is arranged so that it can in itself cause improper operation of the armature.

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§ 236.8 Operating characteristics of electromagnetic, electronic, or electrical apparatus
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§ 236.10 Electric locks, force drop type; where required

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