purchasing 10 kva ups with batteries to sreekrishna higher secondary school ( relcement of defective one ) , items to be supply , supply, installation, and commissioning of 10kva ups stand-alone configuration. three phases in and out. with indoor ( ip20 ) , input pf 0.99, it shall be 100% generator compatible, with built-in isolation transformer, efficiency > 92 % and output power factor unity ( 10kva = 10kw ) , including all accessories etc. as required. the acoustic noise at 1m of the system should be<75db.the system shall comply to iec / en 62040-1, 2, 3 and relevant is standard along. the system shall be true online double - conversion dsp based ups system and ups shall be with automatic & manual bypass switch. the system shall have igbt rectifier and inverter .ups shall have minimum of 2 year warranty. approved brand numeric - legrand / ge / thoshiba mistubhishi , 20 nos of 12v 65ah smf battery compatible with item 1 having 2 year warranty ( total vah 15600 ) .approved make exide / quanta smf batteries for 60 min backup.