Supply and Installation of 80 kVA Three-Phase Heavy Duty UPS

This corrigendum amends the tender notice issued by the **Federal Board of Intermediate and Secondary Education (FBISE)**, H-8/4, Islamabad, under FBISE No. 792 dated 30 July 2026. Prospective suppliers should treat the following corrections as part of the original procurement and retain all other original terms and conditions. Mandatory item list: Item i, sale of tender documents, with the corrected document fee of **Rs. 3,000** payable through E-payment. Item ii, one Heavy Duty UPS, three-phase, 80 kVA, APC, Eaton, or equivalent, online type, with installation and all necessary equipment and services. Required characteristics include input voltage of 380V to 415V, input current of 120 A per phase, frequency of 50 Hz, three-phase plus neutral plus earth system, power factor from 0.9 to 1, DC voltage of 384 V, two battery strings with safety metal box, lithium-ion batteries, and at least 20 minutes backup at full load. The procurement therefore covers supply, delivery, installation, commissioning, testing, and provision of associated equipment and services for the specified UPS system. An equivalent product may be offered, but bidders should provide complete technical literature, compliance statements, warranty information, installation methodology, and after-sales support details. The original tender documents and applicable specifications should be reviewed carefully before pricing. The corrigendum is dated **2026-08-04**. The original notice was dated **2026-07-30**; a closing deadline is not printed in this corrigendum, so bidders should verify the operative deadline in the original notice. The amended tender documents are available at **www.fbise.edu.pk**, and the corrected fee is to be deposited through E-payment. The submission address, bid security or CDR requirement, and ATL eligibility conditions are not restated here and remain governed by the original tender notice. For clarification, contact **Sibghat Ullah Khan, Assistant Secretary**, at **051-9269535**. Practical tip: submit the technical compliance matrix against every UPS parameter and obtain written confirmation from FBISE if the original deadline or submission procedure is unclear.