Power System Maintenance; Preparations; Maintenance Records - Nortel DMS-100 Series Maintenance Manual

3 Power system maintenance

Operating companies should establish a formal routine maintenance plan for
their DMS switch power systems. A maintenance plan is crucial in
detecting and clearing potential power system faults before they affect
service. The maintenance plan should include the following:
This section provides the following:

3.1 Preparations

Maintenance tasks require appropriate maintenance records and tools. These
records and tools are enumerated in the following sections:

3.1.1 Maintenance records

The following maintenance records, or similar forms, should be included in
the operating company office records. If any or all of these forms are not
currently in the office records, reproduce the forms and include them in your
office records.
DMS-100 Family Power and Grounding Routine Maintenance Manual Applies to all BCS/PCL levels
routine battery maintenance
visual checks and tests of the charging plant
exercise of the standby power system operation
visual checks and routine runs of the emergency alternator (if used).
guidelines for inspecting the DMS switch power system
various forms for recording potential power plant problems and for
tracking the required corrective actions
a list of checks and tests for each subsystem
forms for recording the results of certain tests.
Pilot cell voltage and specific gravity test record: used to record
voltage and specific gravity test results on battery plant pilot cells.
See Figure 3–1.
Battery electrical and specific gravity measurements record: used to
record the results of the voltage and specific gravity tests on individual
cells in the battery plant. See Figure 3–2.
3–1