Physics · High Voltage Insulators
Why do porcelain pin insulators require minimal maintenance in overhead transmission lines?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They contain internal electronic monitoring systems
- 2They automatically repair surface cracks
- 3They are made of semiconductor materials
- 4Their glazed surface is self-cleaning when washed by rainwater✓
Correct answer
Their glazed surface is self-cleaning when washed by rainwater
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