Tenders for Procurement Of 230/110V, 50 Hz, Single Phase, 2 Kva, Transformer Used For Power Supply In Colour Light Signaling Etc.. 230/110V, 50 Hz, Single Phase, 2 Kva, Transformer Used For Power Supply In Colour Light Signaling Installations To Suit Rdso Specification No.- Irs:S-72/88 Amdt. 2 Specification With Amdt. Up To The Date Of Tend Er Opening Warranty Period: 30 Months After The Date Of Delivery