Electrical Wiring: Residental - With Plans (Paperback) Package
18th Edition
ISBN: 9781305416376
Author: MULLIN
Publisher: Cengage
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Chapter 31, Problem 5R
To determine
Choose the correct option among the given choices to find the minimum bending radius that is recommended while installing Category-5 rated cables.
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Electrical Wiring: Residental - With Plans (Paperback) Package
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- What is the voltage rating of the conductors in Type NMC cable? _______________arrow_forwardThe Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 20C and a 60-Hz resistance of 0.0956 ohm per mile at 50C for the all-aluminum Marigold conductor, which has 61 strands and whose size is 1113 kcmil. Assuming an increase in resistance of 2 for spiraling, calculate and verify the dc resistance. Then calculate the dc resistance at 50C, and determine the percentage increase due to skin effect.arrow_forward1. The choice of conductor material will depend upon the and .......... 2. copper conductor used in the ......... form as standard ****** conductor. 3. We can used the Galvanized steel conductor for ........ or for 4. The wooden poles used in rural areas because it is 5. The holes in RCC used to and........ 6. Porcelain used as a good insulator and it mixture of ... ……...... and 7. Strain insulator used when there is a ......... or... 8. Because the shunt capacitor the ....... is not same through the dises and the efficiency will ......... 9. In Stormy weather, the ...... that make corona occurs at much less voltage compared to the fair weather. 10. String insulator with 4 units, 33.33% on the bottom most one. The string efficiency is ........ 11......... is the type of insulator used for holding the HV overhead conductor on the straight running poles. 12.......... possess no free-charge carriers and thus are non- conductive. 13. Corona accompanied by ....... .....arrow_forward
- Explain the concept of cable bending radius and why it is critical for cable installations. Provide examples of situations where this becomes crucial.arrow_forwardSingle core cable design for 25 kV. The radius of conductor is 0.5 cm. The insulation material consists of two layers. The thickness of each layer is 2 cm. The voltage of first and second layers are 20 kV, 5 kV respectively. The minimum Electric stress of the cable isarrow_forwardA two wire DC distributor AB, 1000 meter long, is supplied from both ends, 240 V at A and 242 V at B. There is a concentrated load of 200 A at a distance of 400 meter from A and a uniformly load 1.0 A/m between the midpoint and end B. Determine (i) the current fed at points A and B (ii) the point of minimum potential and (iii) voltage and this point. Consider cable resistance as 0.005 ohm per 1000 meter each core.arrow_forward
- Describe the construction and symbol of semi conductor devicearrow_forward2. A cable one mile long and 0.50 inch in diameter is composed of a steel core 0.25 inch in diameter and the is Ps and Pa 57.4 and 17.5 ohm Cmil/ft, outside shell is aluminum. The resistance of the cable is respectively a. 0.447 ohm c. 0.625 ohm b. 0.893 ohm d. 5.3 ohmsarrow_forward12 - Due to the effect of the resistance of the cable connected to RTD, two-wire cables up to ……. meters and three-wire cables up to ……... meters are used in standard designs. A) 10-150B) 40-500C) 50-195D) 30-230E) 200-1000arrow_forward
- A DC is supplied through a solid conductor cable. The fault in the cable can be determined by using Murray Loop Test. The healthy cable has the insulation resistance of 1 kilo Ohms per meter. No fault occurred till the first 10 km. The core of healthy cable has the circumference of 7.86cm. If the resistivity of insulation is 900 G Ohm-mm, what is the diameter of the cable.arrow_forwardElectrical Engineering What is the smallest square box that will accommodate four No. 12 conductors and four No. 10 conductors if a. These conductors are pulled through without a splice? b. These conductors are all spliced in the box?arrow_forwardThe figure below shows a ring distributor with interconnector BD. The supply is given at point A. The resistances of go and return conductors of various sections are indicated in the figure, current in the interconnector and *voltage drop in the interconnector arearrow_forward
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