Supply and Installation of Heavy Duty 80 kVA Online UPS

This corrigendum issued by the **Federal Board of Intermediate and Secondary Education (FBISE)**, H-8/4, Islamabad, amends the tender notice originally published under FBISE No. 792 dated 30 July 2026. Bidders should read this notice together with the original tender documents, because all other terms and conditions remain unchanged. Mandatory item list: Sr. i: tender documents, available from the FBISE website with bank challan, with a revised document sale fee of **Rs. 3,000** payable through E-Payment. Sr. ii: one Heavy Duty UPS, three-phase, 80 kVA, APC, Eaton, or equivalent, online type, including installation and all necessary equipment and services. Required technical parameters are input voltage 380V to 415V, input current 120A per phase, frequency 50Hz, three-phase plus neutral and earth system, power factor 0.9 to 1, DC voltage 384V, two strings with safety metal box, and lithium-ion batteries providing 20 minutes backup at full load. The procurement covers supply, delivery, installation, commissioning, testing, and handover of the UPS system at the department's designated location in Islamabad. Equivalent equipment may be offered, but bidders should provide complete manufacturer literature, compliance data, warranty details, battery specifications, service support arrangements, and a clear comparison against every stated parameter. The corrigendum does not repeat eligibility requirements, bid security, tax documentation, or the exact submission address. Prospective bidders must therefore obtain the complete original tender documents from www.fbise.edu.pk and comply with its instructions, including any requirement for CDR, earnest money, registration, active taxpayer status, and ATL verification. The revised deadline is **11 August 2026 at 23:59:59**, based on the available corrigendum where no closing time is printed. Submission should follow the sealed-bid or other method specified in the original notice and be delivered to the address stated there. Practical tip: submit a detailed compliance matrix, confirm the 20-minute battery autonomy under full load, and retain proof of E-Payment and delivery before the deadline.