Underground service conductors shall have [Fill-in-the-blank]. A)adequate mechanical strength. B)sufficient ampacity for the loads calculated. C)none of these. D)adequate mechanical strength and sufficient ampacity for the loads calculated.

Underground service conductors shall have [Fill-in-the-blank]. A)adequate mechanical strength. B)sufficient ampacity for the loads calculated. C)none of these. D)adequate mechanical strength and sufficient ampacity for the loads calculated.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter10: Using Wire Tables And Determining Conductor Sizes

Section: Chapter Questions

Problem 4PA: Using the above example, determine the wire size needed for the 400-ampere service in accordance...

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Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

Question

Underground service conductors shall have [Fill-in-the-blank].

A)adequate mechanical strength.

B)sufficient ampacity for the loads calculated.

C)none of these.

D)adequate mechanical strength and sufficient ampacity for the loads calculated.

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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