The Purpose Of This Contract Is To Carry Out The Maintenance Service For The Uninterruptible Power Supply Equipment (Hereinafter Ups) Distributed By The Facilities Of The Consorci D'Aigües De Tarragona (Hereinafter Cat). Installed Ups Equipment Has The Ability To Provide Immediate And Stable Power Through Internal Batteries, Which Prevents Sudden Shutdowns And Protects Critical Infrastructure. This Is Especially Relevant In Automated Systems, Communications, Scada And Treatment Equipment That Cannot Be Without Power Even For Short Moments. In The Event That The Same Bidder Is Awarded Both Lots, The Award Will Be Formalized Through A Single Contract.