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Design a 1500-meter-long electrical transmission line with a cross-section size of 0.00199 cm2 that can carry a 50-amp current with a power loss of no more than 5 x105 W. Table 1 shows the electrical conductivity of a variety of materials. What kind of material could be a good candidate?

Design a 1500-meter-long electrical transmission line with a cross-section size of 0.00199 cm2 that can carry a 50-amp current with a power loss of no more than 5 x105 W. Table 1 shows the electrical conductivity of a variety of materials. What kind of material could be a good candidate?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter12: Electronic Control Devices
Section: Chapter Questions
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Design a 1500-meter-long electrical transmission line with a cross-section size of 0.00199 cm2 that can carry a 50-amp current with a power loss of no more than 5 x105 W. Table 1 shows the electrical conductivity of a variety of materials. What kind of material could be a good candidate?

Table 1: Electrical conductivity of selected materials at T = 300 K* Conductivity (ohm 1. cm 1) Conductivity (ohm .cm-1) Material Material Superconductors Hg. Nb3Sn YBa;Cuz07- MGB2 Semiconductors Group 4B elements Si Infinite (under certain conditions 4x 106 such as low temperatures) Ge 0.02 Compound semiconductors Metals Alkali metals 2.5x 10-9 0.1 10-10 GaAs 2.13 x 105 1.64 x 105 Na AIAS K SiC Alkali earth metals Mg lonic Conductors 2.25 x 105 3.16 x 105 Indium tin oxide (ITO) Ca Ytria-stabilized zirconia (YSZ) Group 38 metals Al Insulators, Linear, and Nontinear Dielectrics Polymers Polyethylene Polytetrafluoroethylene Polystyrene Ероку Ceramics Alumina (AlO3) Silicate glasses Boron nitride (BN) Barium titanate (BaTIO3) C (diamond) 3.77 x 105 0.66 x 105 10-15 10-18 10-17 to 10-19 10-12 to 10-17 Transition metals Fe 1.00 x 105 1.46 x 105 Ni Group 18 metals 5.98 x 105 6.80 x 105 4.26 x 105 Cu 10-14 10-17 10-13 10-14 Ag Au < 10-18 "Unless specified otherwise, assumes high-purity material.
Transcribed Image Text:Table 1: Electrical conductivity of selected materials at T = 300 K* Conductivity (ohm 1. cm 1) Conductivity (ohm .cm-1) Material Material Superconductors Hg. Nb3Sn YBa;Cuz07- MGB2 Semiconductors Group 4B elements Si Infinite (under certain conditions 4x 106 such as low temperatures) Ge 0.02 Compound semiconductors Metals Alkali metals 2.5x 10-9 0.1 10-10 GaAs 2.13 x 105 1.64 x 105 Na AIAS K SiC Alkali earth metals Mg lonic Conductors 2.25 x 105 3.16 x 105 Indium tin oxide (ITO) Ca Ytria-stabilized zirconia (YSZ) Group 38 metals Al Insulators, Linear, and Nontinear Dielectrics Polymers Polyethylene Polytetrafluoroethylene Polystyrene Ероку Ceramics Alumina (AlO3) Silicate glasses Boron nitride (BN) Barium titanate (BaTIO3) C (diamond) 3.77 x 105 0.66 x 105 10-15 10-18 10-17 to 10-19 10-12 to 10-17 Transition metals Fe 1.00 x 105 1.46 x 105 Ni Group 18 metals 5.98 x 105 6.80 x 105 4.26 x 105 Cu 10-14 10-17 10-13 10-14 Ag Au < 10-18 "Unless specified otherwise, assumes high-purity material.
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