supply of ac/dc damping panelac/dc damping panel,set of (1) ac damping panel complete with capacitors conforming to is 13648 or its equivale nt msr, [22 mfd/ 550 volt or 25 mfd / 660 volt] for wap4/wag5/wag7 to suit updated silicon rectifiers as per rdso specification no. elrs/spec/rsi/0030 [rev.0], dec-03 with amendment no.1 dt. 16.01.2004, a mendment no.2 dt. 03.06.2004 and amendment no.3 dt.06.08.08, qty-02 no/set & (2) dc damping panel c omplete with capacitors conforming to is 13648 or equivalent msr, [22 mfd/ 550 volts or 25 mfd/ 660 volt s] for use in wap4/wag5/wag7 to suit updated silicon rectifier, as per rdso specification no. elrs/spec/ rsi/0030 [rev.0] dec-03 with amendment no.1 dt. 16.01.2004, amendment no.2 dt. 03.06.2004 and ame ndment no. 3 dt.06.08.08. qty-02 no/set. note: [1] damping panel should be made with capacitor of make [ i] yash capacitors pvt. ltd./ nasik [ii] icar/italy [iii] advance / mysore. vide, rdsos letter no. el/3.2.13 5,dated 10/11.03.2015, [2] likely sources should have same or similar type of material supplied to railways earlier. [ warranty period: 30 months after the date of delivery ] ]