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All reports

Earthing Resistance Testing

RPT-2026-005 - performed 20 Jun 2026 by Tahir Mahmood

Health score

73

Measurements taken

6

1 outside reference

Findings

1

Customer visibility

Internal only

Measurements

Each reading against the reference it is judged by.

MeasurementReadingReferenceResult
Open circuit voltage (string A)612 VWithin 5% of designPass
Short circuit current (string A)8.5 AWithin 8% of nameplatePass
Earth electrode resistance6 ohmBelow 5 ohmPass
Insulation resistance (DC+ to earth)66 MohmAbove 1 MohmPass
Max module temperature44 CBelow 25 C above ambientPass
Performance ratio on test day63%Baseline 79%Outside reference
Context
Capacity
10.0 kW
Work order
JOB-2026-0064
Technician
Tahir Mahmood
Recommendation

Bring cleaning forward by one cycle and re-torque the affected strings within 30 days.

Score 73 / 100
Findings

Defects recorded during this inspection.

  • Earthing resistance above limit

    MajorResolved

    Measured 9.4 ohm against a 5 ohm reference. Earth pit needs re-treatment.