Tender For digital earth fault locator suitable for dc system voltage grades 220v,110v,48v & 24v working on dc power supply 220v & 110v or ac-220v external supply. the unit shall consist of the following items i.transmitter working on dc system voltage measurement range: 0v- 500v dc with measurement resolution dc 1v & accuracy of 5%+/-5v, system for ground impedance measurement range: 0-1m ,accuracy:10%+/-3k ii. a receiver with insulation resistance measuring range at least:0-600k , insulation impedance measurement resolution: 1k . & the resolution of earth leakage current detection: 0.1ma with built in rechargeable power supply. item to be supplied with suitable signal clamps, current sensors, power adapters. makes and model: metravi-dcgfl-999 or dc trace of scope t&m or equivalent. [ warranty period: 12 months after the date of delivery ] ]