Set Of Resistor Elements (Rfs) For Vertical Dbr Of Conventional Electric Locomotives. Each Consisting Of 2 Items As Per Details Given Below: 1. Top Tray Resistor Elements As Per Rdso Specification No. Elrs/Spec/Dbr/0028 Rev 0 Of Sept.2003 And Conforming To S.C.Rly.Drawing No. A2/El/Dbr/2633 Ref-A. Qty/Set-04 Nos. 2. Bottom Tray Resistor Elements As Per Rdso Specification No. Elrs/Spec/Dbr/0028 Rev 0 Of Sept.2003 And Conforming To S.C.Rly. Drg. No. A2/El/Dbr/2633 Ref-B. Qty/Set-20