Shunting sensitivity.

  1. Law
  2. CFR 49
  3. Transportation
  4. Other Regulations Relating to Transportation
  5. Federal Railroad Administration, Department of Transportation
  6. Rules, Standards, and Instructions Governing the Installation, Inspection, Maintenance, and Repair of Signal and Train Control Systems, Devices, and Appliances
  7. Rules and Instructions: All Systems
  8. Track Circuits
  9. Shunting sensitivity.

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§ 236.56 Shunting sensitivity.

Each track circuit controlling home signal or approach locking shall be so maintained that track relay is in deenergized position, or device that functions as a track relay shall be in its most restrictive state if, when track circuit is dry, a shunt of 0.06 ohm resistance is connected across the track rails of the circuit, including fouling sections of turnouts.

[49 FR 3383, Jan. 26, 1984]


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