Physics · Electrical Cables
What is the primary purpose of the metallic or non-metallic sheath in an underground electrical cable?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Preventing moisture, liquids, and gases from entering the cable insulation✓
- 2Increasing the conductivity of the core
- 3Reducing the overall capacitance
- 4Providing mechanical flexibility
Correct answer
Preventing moisture, liquids, and gases from entering the cable insulation
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