3. A 2-wire d.c. distributor A B 500 metres long is fed from point A and is loaded as under : Distance from feeding point A (in metres) 100 300 400 500 Load (amperes) If the specific resistance of copper is 1-7× 10*2m, what must be the cross-section of each wire in order that the voltage drop in the distributor shall not exceed 10 volts ? 20 40 40 50 (1-734 cm)

3. A 2-wire d.c. distributor A B 500 metres long is fed from point A and is loaded as under : Distance from feeding point A (in metres) 100 300 400 500 Load (amperes) If the specific resistance of copper is 1-7× 10*2m, what must be the cross-section of each wire in order that the voltage drop in the distributor shall not exceed 10 volts ? 20 40 40 50 (1-734 cm)

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter4: Electric Meters

Section: Chapter Questions

Problem 6RQ

See similar textbooks

Similar questions

What is the most important rule of electrical safety?
12. How is the A-hr capacity of a lead-acid battery determined?
A 2-wire d.c. distributor AB 500 metres long is fed from point A and is loaded as under :Distance from feeding point A (in metres) 100 300 400 500Load (amperes) 20 40 40 50If the specific resistance of copper is 1·7 × 10−8 Ωm, what must be the cross-section of each wire in orderthat the voltage drop in the distributor shall not exceed 10 volts ?
A 2-wire d.c. distributor A B 500 metres long is fed from point A and is loaded as under :Distance from feeding point A (in metres) 100 300 400 500Load (amperes) 20 40 40 50If the specific resistance of copper is 1·7 × 10−8 Ωm, what must be the cross-section of each wire in orderthat the voltage drop in the distributor shall not exceed 10 volts ?
A 2-wire d.c. distributor AB having 530 metres in length is fed from point A and is loaded as under: Distance from feeding point A (in metres) 150 340 420 530 Load (amperes) 20 40 40 50 The specific resistance of copper is 1·7 × 10−8 Ωm, Analyze the above Distribution scheme for the correct estimate of the cross-section of each wire in order that the voltage drop in the distributor shall not exceed 10 volts ?
A cylindrical 00 AWG copper wire is coated with NEMA class B insulation. The normaloperating temperature of the wire is . What is the maximum current the wire can carry for 1second without exceeding the NEMA temperature rating?
List the minimum trade size of Type EMT for each of the following applications. Assume the use of conductors with THHN insulation. Six 14 AWG ______ Six 12 AWG ______ Three 10 AWG ______ Four 8 AWG ______
A cable wire maybe coaxial or twisted. Coaxial costs 25 centavos per meter while twisted wire costs only 18 centavos. The soldering cost for coaxial wire is P1.30 per connection, for twisted wire P1.70. What length of cable run will make the cost of installing coaxial equal to that of the twisted wire. Assume that the number of soldered connection is 350. ANSWER_____________m
Question#03: Justify: Mention and explain any 4 the differences between conducting and Non-conducting wires.
Wire sizing indicates the diameter of the metal conductor of the wire and is based on the American Wire Gauge (AWG) system. The gauge of a wire relates to the wire's current-carrying capacity, or how much ___ the wire can safely handle.
The resistivity of a commercial quality of copper conductor is 0.686 µΩ-in at 20°C. Determine the cross section in square inch and resistan ce at 20°C of 121 Ibs. of this copper when the length is 600 ft. The weightper cubic inch of copper is 0.321 Ibs.
What unit of measurement is used for fhe diameter of fhe wires