If r is the radius of the conductor and R the radius of the sheath of the cable, the cable operates stably from the view point of dielectric strength if:
The insulation resistance of a cable of 10 km length is 1 MΩ. The resistance for a length of 40 km is
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Sheath losses can be eliminated by
Armouring protect cables against
Match List-l (Type of Cables) with List-ll (Operatng Voltages) and select the correct answer using the code given below the lists:
Consider the following statements:
1. AAC (All Aluminium conductors) are universaly employed for feeders as well as distributors.
2. The conductor size for a feeder is mainly governed by the permissible voltage drop in the line.
Which of the above statement(s) is/are true?
Which of the following distribution systems is the most economical?
For high voltage transmission lines, conductors are suspended from towers so as to
The function of steel wire in an ACSR conductor is to
The string efficiency of insulators can be increased by
25 docs|247 tests
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25 docs|247 tests
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