Aging & Reliability Data
Systematic field tracking of in-service composite insulators since 2001 — laboratory sampling and real-world performance analysis confirming 40+ year design life across diverse climates.
Long-Term Performance Tracking
Our comprehensive tracking program monitors the performance of SHEMAR insulators over time, comparing current test results with factory specifications to ensure consistent quality and reliability.
Latest test results for insulators installed in 2020. Performance data shows minimal degradation and excellent long-term reliability.
Annual testing of insulators from the 2019 installation batch. All mechanical and electrical parameters remain within acceptable ranges.
Five-year performance review of insulators installed in 2018. Excellent retention of mechanical and electrical properties confirmed.
Comprehensive testing across multiple installation batches. Consistent performance demonstrated across diverse environmental conditions.
Three-year performance assessment of insulators installed in 2018. No significant degradation observed; hydrophobicity fully maintained.
Initial performance data for new installations. Baseline measurements established for future longitudinal comparison and analysis.
Five-year performance review of insulators installed in 2014. Excellent long-term reliability demonstrated across high-voltage transmission lines.
Comprehensive testing program established. Baseline data collected for all new installations; tracking methodology standardized for future cycles.
Factory vs. In-Service Comparison
Comparative analysis of insulator performance from factory specifications to in-service measurements over time.
Mechanical Strength Comparison
| Parameter | Factory Spec | 2018 Data | 2021 Data | 2024 Data |
|---|---|---|---|---|
| Tensile Strength (kN) | 120 | 118 | 116 | 115 |
| Bending Strength (kN) | 80 | 79 | 78 | 77 |
| Compressive Strength (kN) | 200 | 198 | 195 | 194 |
Electrical Performance Comparison
| Parameter | Factory Spec | 2018 Data | 2021 Data | 2024 Data |
|---|---|---|---|---|
| Tracking and Erosion (kV) | 4.5 | 4.4 | 4.3 | 4.2 |
| Pollution Performance (kV) | 3.2 | 3.1 | 3.0 | 2.9 |
| Dielectric Strength (kV/mm) | 20 | 19.8 | 19.5 | 19.3 |
Material Properties Comparison
| Parameter | Factory Spec | 2018 Data | 2021 Data | 2024 Data |
|---|---|---|---|---|
| Hardness (Shore A) | 60 | 59 | 58 | 57 |
| Elongation at Break (%) | 250 | 245 | 240 | 235 |
| Hydrophobicity (class) | 1 | 1 | 1-2 | 2 |
Request Tracking Reports
Our engineering team can provide detailed tracking reports for specific years. Contact us to request the relevant documentation directly.
Request Tracking Report