Research Article

Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator

Table 1

The parameters of specimens.

Parameters of specimenValue

Size130 mm × 30 mm × 15 mm
Material45# steel
Wire cutting depth5 mm
The diameter of wire-cut wire0.18 mm
Length of fatigue cracks0 mm, 3 mm, 10 mm, 15 mm