India, March 19 -- SOUTHERN RAILWAY has issued a tender notice titled "Contactor Unit Assembly" with the tender reference no.: 15240215A.
The tender details are as follows: CONTACTOR UNIT ASSEMBLY TO DRG.NO.RDSO/S.10911 ALT-6 FOR ELECTRIC POINT MACHINE R OTARY TYPE. (1) THE CONTACT RESISTANCE OF ALL ELECTRICAL CONTACTS IN THIS UNIT SHALL NOT EXCEED 0.03 Ohms WHEN CARRYING A DIRECT CURRENT OF 100 mA. (2) THE CONTACT PRESSURE OF ELECTRICAL CO NTACTS IN CLOSED POSITION WHEN MEASURED VERY NEAR THE POINT OF CONTACT SHALL NOT BE LESS THA N 275 Gm. (3) THE INSULATION RESISTANCE SHALL NOT BE LESS THAN 10 MEG OHMS IMMEDIATELY AFTER AP PLYING A TEST VOLTAGE OF 2000 V-AC-50Hz FOR 1 MINUTE BETWEEN ALL PARTS OF ELECTRIC CIRCUITS AND OTHER METALLIC PART...