49 CFR Subpart D - Subpart D—Maintenance, Inspection, and Testing
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Maintenance Standards (§§ 234.201 - 234.245)
- § 234.201 Location of plans.
- § 234.203 Control circuits.
- § 234.205 Operating characteristics of warning system apparatus.
- § 234.207 Adjustment, repair, or replacement of component.
- § 234.209 Interference with normal functioning of system.
- § 234.211 Security of warning system apparatus.
- § 234.213 Grounds.
- § 234.215 Standby power system.
- § 234.217 Flashing light units.
- § 234.219 Gate arm lights and light cable.
- § 234.221 Lamp voltage.
- § 234.223 Gate arm.
- § 234.225 Activation of warning system.
- § 234.227 Train detection apparatus.
- § 234.229 Shunting sensitivity.
- § 234.231 Fouling wires.
- § 234.233 Rail joints.
- § 234.235 Insulated rail joints.
- § 234.237 Reverse switch cut-out circuit.
- § 234.239 Tagging of wires and interference of wires or tags with signal apparatus.
- § 234.241 Protection of insulated wire; splice in underground wire.
- § 234.243 Wire on pole line and aerial cable.
- § 234.245 Signs.
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Inspections and Tests (§§ 234.247 - 234.273)
- § 234.247 Purpose of inspections and tests; removal from service of relay or device failing to meet test requirements.
- § 234.249 Ground tests.
- § 234.251 Standby power.
- § 234.253 Flashing light units and lamp voltage.
- § 234.255 Gate arm and gate mechanism.
- § 234.257 Warning system operation.
- § 234.259 Warning time.
- § 234.261 Highway traffic signal pre-emption.
- § 234.263 Relays.
- § 234.265 Timing relays and timing devices.
- § 234.267 Insulation resistance tests, wires in trunking and cables.
- § 234.269 Cut-out circuits.
- § 234.271 Insulated rail joints, bond wires, and track connections.
- § 234.273 Results of inspections and tests.
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Requirements for Processor-Based Systems (§ 234.275)