Electrical treeing in stress-whitened polypropylene thermoplastic elastomer cable insulation

Key Points

• This research aims to investigate the influence of mechanical stress whitening on electrical treeing in polypropylene thermoplastic elastomer insulation.
• Conducted tests on polypropylene thermoplastic elastomer samples under mechanical stress conditions.
• Analyzed the occurrence of electrical treeing in stressed versus unstressed samples.
• Evaluated the insulation performance in high-voltage scenarios.
• Mechanical stress whitening notably increased the incidence of electrical treeing.
• Stressed samples exhibited reduced insulation effectiveness compared to unstressed counterparts.
• Findings suggest the need for careful assessment of PP-TPE under mechanical conditions in real-world applications.