Vigilance Control Device (Vcd) To Be Used In 25 Kv Ac Tap Changer Locomotive As Per Rd So Spec. No. Rdso/2008/El/Spec./0025/Rev. 6, June - 2019 With Amendment No.1 & Rdso Letter No. El/3.1.14, Dt. 04.10.11 & 11.11.11Foot Switch As Per Clw Drg. No. Clw/Es/3/Sk-1/0032, Alt. %U2018A %U2019 , Clw Spec No. Clw/Es/3/0032 & Confirming To Rdso Ms No. Rdso/2016/El/Ms/0450(Rev.-0) Dt. 19.05.2016. [ Warranty Period: 30 Months After The Date Of Delivery ] ]