Specifications include, but are not limited to: New Castle County is seeking sealed bids for preventive maintenance/inspection and on-call service repair of Uninterruptible Power Supply (UPS) Systems located within New Castle County, DE. Proof will be required of each contractor that it has satisfactorily maintained equipment of the type and character covered herein for a period of at least ten (10) years. Successful vendor must meet or exceed all federal, state, and local rules and regulations as related to this type of service/repair, and must perform work in accordance to them, including, but not limited to, licenses, permits, insurance, etc. Contractor must have an emergency local telephone number or offer toll-free service that is answered in person 24 hours a day, 365 days a year. Contractor shall have the necessary facilities and organization in their direct employment to provide skilled, competent, and trained mechanics for New Castle County repairs/service. These mechanics shall be under the supervision of a qualified foreman. The Preventive Maintenance may not be subcontracted. However, Service Repairs can be subcontracted to a certified vendor with prior approval of New Castle County. Should approval to subcontract be granted, contractor is responsible for all aspects of subcontractor’s work. Measure and record the temperature of the following: a. Room b. Breakers c. Connections d. Controls • Perform a complete visual inspection of the following: a. Sub-assemblies b. Wiring Harnesses c. Contacts d. Cables • Check air filter(s) for cleanliness and clean or replace as necessary. • Check the following for discoloration, component swelling, leakage, or DC caps that extrude over 1/8”. a. Rectifier Boards b. Inverter Boards c. AC Capacitors d. DC Capacitors • Check the inverter and rectifier snubbers for burned or broken wires. • Check all connections for proper torque and/or discoloration. • Check fuses on the DC capacitor deck for continuity (if applicable). • Measure and record harmonic trap filter currents. • Measure and record all low-voltage power supply levels. • Record all voltage and current readings as found on the system display panel. • Record all voltage and current readings from measurement device. • With customer approval, simulate a 3-minute power outage. Record and measure the following: a. Duration of Test b. Discharge Current c. End DC Voltage d. Return to Normal
