electrical power cable engineering (10)
electrical power cable engineering (10)
... Adapted from class notes for Power Cable Engineering Clinic,” University of Wisconsin Madison, 1997. [10-2] L. J. Kelly, Adapted from class notes for Power Cable Engineering Clinic,” University ... manufacturing, in Chapter 3, is common to all cables with metallic conduc- tors. The manufacture of extruded dielectric power cables and laminar dielectric power cables follow. 2. CONDUCTOR MANUFACTURING ... Medium Voltage Cables The tests described under Section 6.1 are also applicable to medium voltage cables. These tests are generally conducted in a dry environment on finished cables. 141...
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Electrical power cable engineering
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electrical power cable engineering (1)
... Bemstein, adapted from class notes for Power Cables 13 Copyright © 1999 by Marcel Dekker, Inc.CHAPTER I HISTORICAL PERSPECTIVE OF ELECTRICAL CABLES Bruce S. Bernstein and William ... crosslinked polyethylene cables in the distribution classes are fresuently made with the same wall thickness as today’s impregnated paper cables 6. EXTRUDED DIELECTRIC POWER CABLES The development ... used in these cables became available for smoother and cleaner conductor shields. Vast improvements in the materials and processing of extruded, medium voltage power cables in the 1980s...
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electrical power cable engineering (2)
... from class notes for Power Cable Engineering Clinic,” University of Wisconsin Madison, 1992. [2-21 Landinger, Carl, adapted from class notes for Power Cable Engineering Clinic,” ... 5.1 Medium Voltage Sbielded Cables Medium voltage (5 kV to 46 kV) shielded cable appears to be a relatively simple electrical machine. It does electrical work but there are ... Inc.relatively simple cable, a low voltage non-shielded cable. For simplicity, we shall contine this discussion to single conductor cable. 5.1.1 components in this cable, a conductor and...
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electrical power cable engineering (3)
... The Okonite Company, Bulletin EHB-90, 1990. Engineering Data for Copper and Aluminum Conductor Electrical Ca- [3-5] Southwire Company Power Cable Manual, Second Edition, 1997 [3-61 American ... Nickel 1. INTRODUCTION 4.3 25.87 7.8 46.9 The fundamental concern of power cable engineering is to transmit current (power) economically and efficiently. The choice of the conductor material, ... underground cables to reduce the possibility of this happening. (Solid conductors, of course, are specified for the same reason for #2/0 AWG aluminum and smaller cables.) 7. ELECTRICAL...
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electrical power cable engineering (4)
... the length of cable in ohms cos 0 = Power factor of the load XL = Inductive reactance of the length of cable in ohms 2.9 Total Cable Reactance The total cable reactance ... of the cable in ohms per foot. 52 Copyright © 1999 by Marcel Dekker, Inc.x = xc + x, (4.15) 2.10 Cable Dissipation Factor In cable engineering, the small amount of power consumed ... breakdown occurs. 3. REVIEW OF ELECTRICAL ENGINEERING TERMS These terms apply to all electrical engineering circuits. The actual application of these terms to cables is covered in section 2.0...
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electrical power cable engineering (5)
... adapted from class notes from Power Cable Engi- neering Clinic,” University of Wisconsin-Madison, 1997. [5-21 Kenneth N. Mathes, adapted from class notes from Power Cable Engi- neering Clinic,” ... Transmission cables, which are defined as cables operating above 46 kV, have traditionally used paper / oil systems as the insulation. The paper is applied as a thin film wound over the cable ... voltage cables in the 10 kV class, but that practice has been discontinued. Many years ago, butyl rubber was used for distribution cables, but virtually all of this installed cable has...
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electrical power cable engineering (6)
... that comprise water and electrical trees differ. AC breakdown strength is commonly performed on fill size cables as an aid in characterization. For full size cables, it is common ... mil, or kV per mm. For full size cable, it is common to merely report the kV at which the cable has failed. Hence if a 175 mil wall cable fails at 52.5 kV (or 52,500 volts), ... about 1,300 Vlmil. This demonstrates that dthough the cable was manltEactured in presumably the we ma~er (this cable was tested from the same ex&usion nm and the...
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electrical power cable engineering (7)
... CHAPTER 7 SHIELDING OF POWER CABLES Lawrence J. Kelly and Carl C. Landinger 1. GENERAL Shielding of an electric power cable is accomplished by surrounding the assembly ... must be provided in the cable design to ensure that the cable will activate the back-up protection in the event of any cable fault over the life of that cable. There is also the concern ... tremendously improved cable performance in laboratory evaluations. 3. INSULATION SHIELDING FOR MEDIUM-VOLTAGE CABLES The insulation shield for a medium voltage cable is made up of two...
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electrical power cable engineering (8)
... outer portions of a cable. They serve as electrical and mechanical protection for the underlying cable materials. There are many materials that may be used for cable jackets. The two ... portion of a cable. Sheath is properly the term that applies to a metallic component over the insulation of a cable. An example is the lead sheath of a paper insulated, leadcovered cable. See ... "ruggedized" secondary cables. Only limited use is found for other purposes. 3.2 Neoprene Neoprene has been used as a jacketing material since 1950 for large power cables such as paper...
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