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M G E <br /> UPS SYSTEMS <br /> Quote ID: CL51339 <br /> Battery Preventive Maintenance Scope of Work <br /> Inspections can be performed on a quarterly, semi-annual or annual basis. The scope of work is defined by the frequency of inspections. MGE <br /> recommends sealed battery inspections semi-annually. <br /> Semi-Annual Inspection or Quarterly Inspections <br /> Check integrity of battery rack or battery cabinet. <br /> Check the general appearance and cleanliness of battery system. <br /> Visually inspect the jars for cracks, leaks, or excessive bulging. <br /> Check for evidence of corrosion at the terminal post and connectors. <br /> Check hardware torque on 10 % of the battery connectors to manufacture specifications. <br /> Measure and record ambient air temperature of battery room. <br /> Using Albercorp cellcorder, or equivalent, test equipment record DC voltage and internal <br /> resistance on entire battery string(s). <br /> Measure and record the system DC float voltage and DC charge current. <br /> Measure and record the AC ripple voltage or AC ripple current. <br /> Provide a report detailing any deficiencies and recommend a corrective action . <br /> Documentation shall provide necessary data for the manufacturer's warranty requirements. <br /> Annual Inspections <br /> Includes all 11 items above. <br /> Re-torque all battery connections to manufacture specifications. <br /> Note 1 : Battery PMs require the unit to be placed in Maintenance Bypass for the duration of the PM. While in Maintenance Bypass your critical load <br /> will be unprotected from any utility power problems. <br /> Note 2: Battery terminal cleaning to correct corrosion and oxidation will be implemented when required. <br /> Note 3: Battery inspections do not include battery replacement. <br /> Note 4: The Albercop cellcorder places a 70 to 75 amp load across each battery and will record both battery float voltage and internal resistance. <br /> These values are used as a predicative tool for early detection of a possible failure when compared to manufacture specifications. <br /> MGE UPS SYSTEMS, INC. 1660 Scenic Avenue, Costa Mesa, California 92626 <br />