Use the Point-to-point calculation for finding out the short-circuit current for a meter main located at 25' from a thee-phase, 240/120 V, center-taped transformer. The arc fault current at the secondary terminals of the transformer is 53,000 symmetrical Amperes. The conductors from the transformer to the meter main are one set of 400 kcm coper, located in a metallic pipe.

Use the Point-to-point calculation for finding out the short-circuit current for a meter main located at 25' from a thee-phase, 240/120 V, center-taped transformer. The arc fault current at the secondary terminals of the transformer is 53,000 symmetrical Amperes. The conductors from the transformer to the meter main are one set of 400 kcm coper, located in a metallic pipe.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 11R: What is the minimum size copper grounding electrode conductor for each of the following residential...

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