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Electrical Codes, Standards, Recommended Practices and Regulations
book

Electrical Codes, Standards, Recommended Practices and Regulations

by Robert J. Alonzo
January 2010
Intermediate to advanced content levelIntermediate to advanced
512 pages
18h 35m
English
William Andrew
Content preview from Electrical Codes, Standards, Recommended Practices and Regulations
Harmonic content of a load
Temperature compatibility with equipment
Load current I
2
R losses in conductors
Heat sources external from adjacent conductors
Hysteresis losses from steel conduit
Cable location: buried; in raceway; in cable tray; or overhead aerial
There are several sources for cable and wire ampacities (see Table 10.2). Some include cable
manufacturer’s data; NEC Article 310; and IEEE Std 835, IEEE Standard Power Cable
Ampacity Tables Part 1 thru 5. The Code also allows the use of the Neher–McGrath formula
under engineering supervision. That relationship can be found in NEC Article 310.15(C)
Engineering Supervision. That formula ...
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Publisher Resources

ISBN: 9780815520450