Question: A new facility is to be constructed at a site which is 1.5 miles away from the nearest electric utility company substation. The electrical

A new facility is to be constructed at a site which is

A new facility is to be constructed at a site which is 1.5 miles away from the nearest electric utility company substation. The electrical contractor and the utility company have made load calcula- tions, and decided that the main lines from the substation to the facility will require several cop- per conductors in parallel. Each of these conductors must have insulation type THHN and must carry a maximum current of 220 A in a 20C temperature environment. a. Compute the voltage drop on each of these conductors from the substation to the facility when they carry the maximum required current of 220 A in a 20C temperature environment. Answer: 70 V b. The power absorbed by each conductor under the conditions stated above. Answer: 15.4 Kw c. The power absorbed per square cm of the surface area of each conductor under the conditions stated above. Answer: 0.02 w/cm

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