Run Station DC System and Charger Inspection — Free

Inspection Details and Safety Controls

Inspection scope and equipment ID documented

Record the station name, DC system identifier, charger/battery bank ID, and inspection date.

Work authorization and switching/clearance status verified critical (required)

Confirm the inspection is authorized and any required clearance, permit, or access control is in place.

Yes No N/A

LOTO and electrical PPE requirements confirmed critical (required)

Verify lockout-tagout, shock protection, arc-flash boundaries, and PPE requirements per OSHA 1910.147 and NFPA 70E before exposure to energized DC equipment.

Yes No N/A

Test instruments verified and suitable for DC measurements critical (required)

Confirm meter calibration status, leads condition, and correct DC voltage range before use.

Yes No N/A

Visible hazards or access obstructions present critical (required)

Identify any trip hazards, blocked access, missing barriers, exposed conductors, or other unsafe conditions.

Yes No N/A

Battery Bank and DC Supply Condition

Battery bank enclosure and rack condition acceptable critical (required)

Check for corrosion, leakage, swelling, cracked cases, damaged racks, or missing covers.

Yes No N/A

Photo evidence (optional)

Battery terminals and intercell connections secure and clean critical (required)

Inspect for loose hardware, corrosion, overheating, discoloration, or evidence of high resistance connections.

Yes No N/A

Photo evidence (optional)

Battery electrolyte level within acceptable range

For flooded cells, verify electrolyte level is within manufacturer limits and no cell shows abnormal loss.

Yes No N/A

Battery room ventilation and housekeeping acceptable

Confirm ventilation is operating as intended, vents are unobstructed, and the area is clean and dry.

Yes No N/A

DC distribution fuses, breakers, and labels intact critical (required)

Verify protective devices are properly labeled, not bypassed, and show no signs of overheating or damage.

Yes No N/A

Charger Output and Float Voltage Verification

Charger DC output voltage recorded critical (required)

Measure the charger output at the designated test point and record the value.

Note (optional)

Measured charger output within manufacturer or site acceptable range critical (required)

Confirm the charger output is within the documented operating range for the station DC system.

Yes No N/A

Battery float voltage recorded critical (required)

Measure float voltage at the battery bank or specified test point and record the value.

Note (optional)

Float voltage within manufacturer or site acceptable range critical (required)

Confirm float voltage is within the documented acceptable range and stable during observation.

Yes No N/A

Charger alarms or abnormal indications present critical (required)

Check for AC fail, DC fail, ground alarm, overtemperature, overload, or other abnormal charger indications.

Yes No N/A

Photo evidence (optional)

Ground Detection and Insulation Concerns

Ground detector indicates no unintentional ground critical (required)

Verify the DC ground detection system shows normal status and no active ground alarm is present.

Yes No N/A

Photo evidence (optional)

Positive and negative pole-to-ground readings recorded critical (required)

Record measured pole-to-ground voltage readings for both DC poles at the designated test point.

Note (optional)

Pole-to-ground readings consistent with expected system balance critical (required)

Confirm the measured pole-to-ground values do not indicate an unintentional ground or abnormal imbalance.

Yes No N/A

Insulation, wiring, and terminal blocks show no damage or contamination critical (required)

Inspect for cracked insulation, wet contamination, carbon tracking, loose conductors, or damaged terminal blocks.

Yes No N/A

Photo evidence (optional)

Protective Relays and Breaker Control Power

Protective relay DC supply status normal critical (required)

Confirm relay DC supply indicators show normal operation and no undervoltage or loss-of-control-power condition.

Yes No N/A

Breaker control power available at designated test point critical (required)

Verify breaker trip/close control power is present and stable at the designated point of verification.

Yes No N/A

Any abnormal relay, breaker, or DC control indications observed

Document any alarms, failed indicators, nuisance trips, or abnormal control power behavior.

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Run: Station DC System and Charger Inspection

Inspection Details and Safety Controls

Battery Bank and DC Supply Condition

Charger Output and Float Voltage Verification

Ground Detection and Insulation Concerns

Protective Relays and Breaker Control Power

Get your results