Electrical Wiring Residential
19th Edition
ISBN: 9781337101837
Author: Ray C. Mullin, Phil Simmons
Publisher: Cengage Learning
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Chapter 31, Problem 6R
To determine
Choose the right option from the given choices to find the minimum bending radius of the coaxial cable.
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A DC distributor cable is 1,000 m long and is loaded under:
Distance from the feeding point “A” in meters. 250m 750m 1000m
Load in amperes 100A 200A 300A
The resistance of each conductor is 0.025 ohm/km.. Find the voltage at each load point if the voltage at the feeding point A is maintained at 250V.
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Electrical Wiring Residential
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- H. W.: The cost of a 2-core feeder cable, including installation is (90 a + 20) per meter and the interest and depreciation charges are 10 per cent. The cable is 2 km in length and cost of energy is 4% per unit. The maximum current in the feeder is 250 A and the demand is such that the current copper loss is equivalent to what would be produced by the full flowing for 6 months. If the resistance of a conductor of 1 square cm and 1 km length is 0.173 Q, calculate the most economical cross-sectional area.arrow_forwardi need it asaparrow_forwardwhen installing coaxial cable the minimum bending radius generally recommended isarrow_forward
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