Rating of Electric Power Cables: Ampacity Computations for Transmission, Distribution, and Industrial ApplicationsIEEE, 1997 - 428 páginas Addressed to electrical engineers and others concerned with safe, cost-effective power cable design and installation, Anders (Ontario Hydro Technologies) shares his experience through examples in selecting optimal cable ratings, equations used in the selection process, model calculation sheets, and theoretical considerations. The volume is organized around thermal modeling (cable construction, installations, circuit theory, heat transfer and rating equations); evaluation of parameters (dielectric losses, joule losses, thermal resistances and capacitances); and advanced topics (special cable installations, ampacity computations, and economic selection of conductor cross section). Appendixes on related topics; list of symbols used, and table of US cable sizes. Annotation copyrighted by Book News, Inc., Portland, OR |
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Rating of Electric Power Cables: Ampacity Computations for Transmission ... George J. Anders Vista de fragmentos - 1997 |
Términos y frases comunes
ac resistance ampacity applied assumed cable ampacity cable rating cable surface temperature cable system cable tray calculated CIGRE circulating current losses computed from equation conductor current conductor temperature rise convection heat transfer core current rating cyclic rating factor dielectric losses eddy current eddy current losses electrical electrical resistivity equal equivalent Example external thermal resistance flux formulas given by equation harmonic heat conduction heat transfer coefficient hysteresis IEC Standard IEEE IEEE Trans inductance insulation joule losses Km/W load longitudinal voltage magnetic maximum metallic method mm² Neher obtained from equation parameters pipe pipe-type cable power cables proximity effect R₁ radius rating of cables ratio reactance riser screen sheath and armor short-duration transients shown in Fig single-core cables skin effect soil solar radiation steady-state T₁ tape thermal capacitance thickness three-core cable transient temperature rise trefoil unit length voltage W₁ λι