| 1 | Comprehensive maintenance of two numbers 120 kW true online UPS systems along with associated power, control and bypass panels, installed at Dimapur Airport, including: Routine preventive maintenance (PM) , Corrective and breakdown maintenance including fault diagnosis and rectification, Unlimited breakdown calls during the contract period, 24×7 telephone technical support for operational assistance.Replacement of UPS electronic and power-related spare parts, including but not limited to:Control, logic and monitoring PCBsPower electronic devices such as IGBTs, thyristors and diode modulesCooling fansContactors, relays and auxiliary devicesIndication, sensing and alarm modulesCommunication and interface cards/modulesFaulty battery / cell checking during preventive maintenance, including:Visual inspection of battery bankIdentification of weak, defective or unhealthy batteries/cells through voltage, condition or performance checksRecording and reporting of faulty batteries/cells to Engineer-in-Charge. | Comprehensive maintenance of two numbers 120 kW true online UPS systems along with associated power, control and bypass panels, installed at Dimapur Airport, including: Routine preventive maintenance (PM) , Corrective and breakdown maintenance including fault diagnosis and rectification, Unlimited breakdown calls during the contract period, 24×7 telephone technical support for operational assistance.Replacement of UPS electronic and power-related spare parts, including but not limited to:Control, logic and monitoring PCBsPower electronic devices such as IGBTs, thyristors and diode modulesCooling fansContactors, relays and auxiliary devicesIndication, sensing and alarm modulesCommunication and interface cards/modulesFaulty battery / cell checking during preventive maintenance, including:Visual inspection of battery bankIdentification of weak, defective or unhealthy batteries/cells through voltage, condition or performance checksRecording and reporting of faulty batteries/cells to Engineer-in-Charge. |