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Insulation Resistance Testing
RPT-2026-014 - performed 11 Feb 2026 by Danish Ali
Health score
76
Measurements taken
6
1 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) | 626 V | Within 5% of design | Pass |
| Short circuit current (string A) | 9.9 A | Within 8% of nameplate | Pass |
| Earth electrode resistance | 7.5 ohm | Below 5 ohm | Pass |
| Insulation resistance (DC+ to earth) | 82 Mohm | Above 1 Mohm | Outside reference |
| Max module temperature | 50 C | Below 25 C above ambient | Pass |
| Performance ratio on test day | 68% | Baseline 83% | Pass |
Context
- Site
- Nadia Rehman
- Customer
- Nadia Rehman
- Capacity
- 10.0 kW
- Work order
- JOB-2026-0018
- Technician
- Danish Ali
Recommendation
Bring cleaning forward by one cycle and re-torque the affected strings within 30 days.
Score 76 / 100Findings
Defects recorded during this inspection.
Loose structure bolt
MinorResolvedTwo mid-clamps below torque specification on the north row. Retorqued.
String mismatch on MPPT 2
MajorResolvedString currents differ by 18 percent, pointing to partial shading or module degradation.