supply, installation, testing and commissioning of earth leakage detectors ( 12 channels ) as per rdso specification no. rdso / spn / 256 / 2002 or latest having 6 digit counter, 12 channel bus bar voltage of 110v ac-4 channels, 110v dc - 2 channels, 24v dc -6 channels, along with standard sub rack insulation resistance meter, remote indication and remote buzzer etc. ( required cable, wires, pvc pipes and other miscellaneous materials like clamps, fixing accessories etc shall be supplied by contractor ) . [ warranty period: 30 months after the date of delivery ] => limited