supply of contact unit assemblycontact unit assembly,contact unit assembly to drg.no.rdso/s-10911 alt-6 or latest for electric point machine rotary typ e. (1) the contact resistance of all electrical contacts in this unit shall not exceed 0.03 ohms when carrying a dire ct current of 100 ma. (2) the contact pressure of electrical contacts in closed position when measured very near the point of contact shall not be less than 275 gms. (3) the insulation resistance shall not be less than 10 mega o hms immediately after applying a test voltage of 2000 v-ac-50hz for 1 minute between all parts of electric circuit s and other metallic parts insulated there from in the assembled condition. [ warranty period: 30 months after th e date of delivery ] ]