Specifications include, but are not limited to: The following is an outline of minimum services to be included at each site for the UPS System Inspection Services. For the UPS: • Measure and record input AC voltages and currents on all three phases. • Measure and record delta voltage at the static switch. • Measure and record rectifier output DC voltage and adjust if needed. • Measure and record AC voltages and currents on all three phases. • Test static switch for “no break” transfer. • Test all alarms for proper operation. • Measure and record all DC power supply voltages and adjust if needed. • Test all indicator lamps and report any that are not operating. • Inspect all ground connections and wire insulation for electrical safety. • Vacuum its interior. • Inspect air filters and replace if needed. • Inspect input and output conductors and tighten to manufacturer specifications. • Document each inspection done along with actions taken or recommendations made. • Internal connections, scan year #1 for hot spots on all connections For UPS Batteries: • Check the appearance, safety, cleanliness, and temperature of the battery room. • Make sure ventilation equipment is deployed per the manufacturer specifications. • Test each battery with a 100-ampere load applied for 10 seconds. • Measure and record the cell voltage and specific gravity of each battery cell. • Re-torque cell connections and micro-ohm to manufacturer specifications. • Measure internal impedance of all cells to manufacturer specifications • Check for corrosion on battery terminals and advise whether teardown is needed. • Check batteries for cell leaks or cracks and repair or replace as necessary. • Check battery cables and clean, repair or replace as needed. • Check the integrity of rack mounting, tighten as required, and notify of any structural damage. • Inspect the charger and inverter. • Check grounds, connections, wire insulation and electrical safety, and repair as needed. • Calibrate ammeters and voltmeters to manufacturer specifications. • Calibrate charger DC output current to manufacturer specifications, float and equalize voltage. • Calibrate inverter AC output current to manufacturer specifications, float and equalize voltage. • Calibrate timers, alarm relays and indicator lamps to manufacturer specifications.
