[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR236.56]



[Page 593]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 236_RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, 

INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, 

DEVICES, AND APPLIANCES--Table of Contents

 

              Subpart A_Rules and Instructions: All Systems

 

Sec. 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]