DC System Inspection Service Monthly | Quarterly | Yearly

EngineerBari™ provides periodic DC system inspection services—performed monthly, quarterly, or yearly—to ensure continuous reliability, safety, and compliance of 48V DC and 110V DC battery and battery charger systems.

Objective of Periodic DC System Inspection:

✅Ensure continuous availability of DC supply

✅ Detect early-stage battery degradation

✅Prevent unexpected charger or DC system failure

✅Verify protection and control circuit readiness

✅Extend battery service life

✅Meet utility, insurance, and audit requirements

Scope of Inspection Services

Battery System Inspection:

✅Visual inspection of battery cells, racks, and trays

✅ Individual cell voltage measurement

✅Battery string voltage verification

✅Inter-cell connector condition & torque check

✅Battery temperature and ambient condition check

✅Electrolyte level inspection (for flooded batteries)

✅Corrosion, leakage, swelling & cleanliness check

Battery Charger Inspection:

✅ Charger input/output voltage verification

✅Float & boost charging parameter validation

✅Charger current sharing & rectifier module health

✅Ripple voltage measurement

✅Charger alarm, indication & protection check

✅Auto/manual mode verification

DC Distribution & Load Inspection:

✅ DC distribution board inspection

✅DC feeder voltage verification

✅Fuse, MCB & link condition check

✅DC earth fault indication check

✅Voltage drop observation under load

✅Load sharing and imbalance assessment

Functional & Safety Checks:

✅DC supply availability to protection relays

✅Breaker trip & close circuit DC verification

✅Alarm annunciation functional check

✅Earthing continuity inspection

✅Battery room safety, ventilation & signage check

Inspection Frequency Options:

Monthly Inspection:

✅Visual checks

✅Voltage & alarm verification

✅Charger operational status

✅ Quick health snapshot

Quarterly Inspection:

✅Detailed battery & charger checks

✅Ripple voltage measurement

✅Interconnection torque verification

✅Load condition assessment

Yearly Inspection:

✅ Comprehensive system inspection

✅Trend analysis & performance comparison

✅ Capacity test recommendation

✅Battery life assessment & replacement planning

Reporting & Deliverables:

Each inspection includes professional documentation, such as:

✅Periodic DC system inspection checklist

✅Battery & charger health status report

✅Voltage and alarm observation summary

✅Identified risks & non-conformities

✅Corrective and preventive action recommendations

✅Engineer inspection certificate

Accommodation & Transportation:

Accommodation, transportation, and local logistics for EngineerBari engineers shall be provided by the client OR charged separately and included in the service invoice, as mutually agreed prior to service execution.

Why Choose EngineerBari™?

✅ Services delivered only by qualified professional engineers

✅ Strong experience in substation & DC systems

✅ Early fault detection to prevent major failures

✅ Clear, utility-acceptable inspection reports

✅ Flexible inspection plans (one-time or AMC)