Research Article
Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator
Table 1
The parameters of specimens.
| Parameters of specimen | Value |
| Size | 130 mm × 30 mm × 15 mm | Material | 45# steel | Wire cutting depth | 5 mm | The diameter of wire-cut wire | 0.18 mm | Length of fatigue cracks | 0 mm, 3 mm, 10 mm, 15 mm |
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