[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: 49CFR234.213]



[Page 573-574]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 234_GRADE CROSSING SIGNAL SYSTEM SAFETY--Table of Contents

 

             Subpart D_Maintenance, Inspection, and Testing

 

Sec. 234.213  Grounds.



    Each circuit that affects the proper functioning of a highway-rail 

grade crossing warning system shall be kept free of any ground or 

combination of grounds that will permit a current flow of 75 percent or 

more of the release value of any relay or electromagnetic device in the 

circuit. This requirement does not apply to: circuits that include track 

rail; alternating current power distribution circuits that are grounded



[[Page 574]]



in the interest of safety; and common return wires of grounded common 

return single break circuits.