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- Subject
- Cableselectrical-engineering-mcqs › cables
- Published
- 12 Dec 2018
- Last updated
- 28 May 2026
Explanation
The insulation breakdown in cables can be economically prevented by applying both interlayer sheaths and insulating materials that have different dielectric constants. Using either method alone may not be as effective as combining both.
More Cables MCQs
Practice related questions from the same subject.
- 1.Where does the highest voltage stress occur within a cable?
- 2.How does the insulation of a cable change when the length of the insulation is increased?
- 3.For a cable intended to operate at 1000 kV, which type of insulation is most suitable?
- 4.What is a key benefit of using cables instead of overhead transmission lines?
- 5.What does capacitance grading in cables refer to?
- 6.Which types of losses occur in a cable conducting alternating current?
- 7.Where is the electrostatic stress highest in underground cables?
- 8.Why are underground cables installed at a considerable depth?
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