ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
19th Edition
ISBN: 9781337116213
Author: MULLIN
Publisher: CENGAGE L
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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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Determine the resistance of the insulation in a length e of coaxial cable.
b
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.
Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE.
Jusr answer letters d, e, f.
A cable hangs between two poles that are 80-ft apart. The two poles are both 40 foot high. Sag is observed in the middle of the cable 5 ft from the ground. Find the length of the cable.
d. What is the general equation for length of the cable S?e. What are the boundary conditions for finding the total length of the cable S?f. What is the length of the cable S?***Note!For your basis, here are the questions for letters a-c which have already been answered in this link (https://www.bartleby.com/questions-and-answers/cable-hangs-between-two-poles-that-are-80-ft-apart.-the-two-poles-are-both-40-foot-high.-sag-is-obse/552ca7ad-6b18-4584-bd7a-02bbebcb1f20):a. What is the working equation for a catenary forming cable?b. What is the computed constant a up to 4 decimal places?c. What is the catenary equation for the given problem?
Chapter 31 Solutions
ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
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- Q4) A 2-wire d.c. distributor cable AB is 2 km long and supplies loads of 100A,150A,200A and 50A situated 500 m, 1000 m, 1600 m and 2000 m Trom the feeding point A. Each conductor has a resistance of 0-01 2 per 1000 m. Calculate the voltage at each load point if a voltage of 300 V is maintained at point A.arrow_forwardExplain the L di/dt voltage problem in conductors undergoing commutation.arrow_forwardi. When a transformer full of magnetic material is overloaded and heats up what would happen to the magnetic properties, and which law would the material be associated with. ii. Mention six (6) examples of materials used for the design of any type of insulation.arrow_forward
- . Plastics are commonly used for (insulating). ) Cover Sheathing Observe . The core is (coated) with crystal. Covered with D Act D Behaves -. A coil is a wire conductor (winded ) in to a spiral shape. O Move ) Through O Coiledarrow_forwardH. 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_forwardThe magnetic material classified as Linear when is has small value of both susceptibility and relative permeability. negative value of susceptibility and small value of relative permeability. very large value of both susceptibility and relative permeability. positive value of susceptibility and small value of relative permeability.arrow_forward
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- A 2-wire DC distributor AB is fed at both ends at the same voltage of 230 V. The length of the distributor is 500 m and the loads are tapped from the end A as shown below: Load (A) Distance(m) 100 50 60 150 40 250 100 400 If the maximum voltage drop of 5.5 V is to be allowed, find the X-sectional area of each conductor and point of minimum potential. Specific resistance of conductor material may be taken as 1.73×10-8 2.m. [1.06 cm²; 250 m from A]arrow_forward3. A two conductor main A B, 500 m in length is fed from both ends at 250 volts. Loads of 50 A, 60 A, 40 A and 30 A are tapped at distance of 100 m, 250 m, 350 m and 400 m from end A respectively. If the X- section of conductor be 1 cm and specific resistance of the material of the conductor is 1-7 u 2 cm, determine the minimum consumer voltage. 1245-07 VIarrow_forwardA-Define the sag of T.L and derive an expression for the total length of a Conductor and the tension at the points of support in terms of span length. horizontal tension and weight of conductors.arrow_forward
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