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Earthing Resistance Testing
RPT-2026-021 - performed 10 May 2026 by Faisal Shahzad
Health score
60
Measurements taken
6
3 outside reference
Findings
2
Customer visibility
Shared
Measurements
Each reading against the reference it is judged by.
| Measurement | Reading | Reference | Result |
|---|---|---|---|
| Open circuit voltage (string A) | 658 V | Within 5% of design | Pass |
| Short circuit current (string A) | 8.4 A | Within 8% of nameplate | Pass |
| Earth electrode resistance | 9.3 ohm | Below 5 ohm | Pass |
| Insulation resistance (DC+ to earth) | 35 Mohm | Above 1 Mohm | Outside reference |
| Max module temperature | 66 C | Below 25 C above ambient | Outside reference |
| Performance ratio on test day | 80% | Baseline 79% | Outside reference |
Context
- Customer
- Indus Packaging Ltd
- Capacity
- 200.0 kW
- Work order
- JOB-2026-0052
- Technician
- Faisal Shahzad
Recommendation
Schedule corrective repair within 14 days. Losses at the current rate exceed the cost of the fix.
Score 60 / 100Findings
Defects recorded during this inspection.
String mismatch on MPPT 2
MajorOpenString currents differ by 18 percent, pointing to partial shading or module degradation.
Warranty documents missing
InfoOpenModule warranty pack not on file. Copies requested from the original installer.