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Technical Overview of Morae - Usability testing software with insight you can share ... more>>
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Your MLM training must include how to start a new business when you already lead a
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CHAPTER 8
SHEATHS, JACKETS, AND ARMORS
Lawrence J. Kelly and Carl C. Landinger
1.
SHEATHS
The terms “sheaths” and “jackets” are frequently used as though they mean the same 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, ... more>>
joeoti 10/12/2008 | 0 (0) | 2 | 0 | 0 | English
CHAPTER 6
ELECTRICAL PROPERTIES OF INSULATlNG MATERIALS
Bruce S. Bernstein
1 INTRODUCTION .
Electrical properties of interest for insulation materials can be classified into two major categories:
Those of significance at low voltage operating stresses
0
Those of i p r a c at high voltage operating stresses motne
At low stresses, the ... more>>
joeoti 10/12/2008 | 0 (0) | 2 | 0 | 0 | English
CHAPTER 5
INSULATING MATERIALS FOR CABLES
Bruce S. Bernstein
1.0 INTRODUCTION
Electrical insulation materials are employed over the metallic conductors of underground cables at all voltage ratings. Polymeric materials are employed as the insulation, but the nature of the polymer may vary with the voltage class. Transmission cables, which are ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 4
CABLE CHARACTERISTICS: ELECTRICAL
Lawrence J. Kelly and William A. Thue
1. VOLTAGE RATINGS OF CABLES
The rating, or voltage class, of a cable is based on the phase-to-phase voltage of the system even though the cable is single, two, or three phase. For example, a 15 kV rated cable (or a higher value) must be specified on a system th ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 3
CONDUCTORS
Lawrence J. Kelly and Carl C. Landinger
1.
INTRODUCTION
The fundamental concern of power cable engineering is to transmit current (power) economically and efficiently. The choice of the conductor material, size, and design must take into consideration such items as:
0 Ampacity (current carrying capacity) 0 Voltage s ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 2
BASIC DIELECTRIC THEORY OF CABLE
Theodore A. Balaska and Carl C. Landinger 12-1, 2 4
1.
INTRODUCTION
Whether being used to convey electric power or signals, it is the purpose of a wire or cable to convey the electric current to the intended device or location. In order to accomplish this, a conductor is provided which is adequate ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 14
SHEATH BONDING AND GROUNDING
William A. Thue
1 .
GENERAL
This discussion provides an overview of the reasons and methods for reducing sheath losses in large cables. While calculations are shown, 4of the details are not covered as completely as are in the IEEE Guide 575 [ 14-11. A very complete
set of references is included in t ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 13
AMPACITY OF CABLES
Lawrence J. Kelly and Carl C. Landinger
1 .
INTRODUCTION
Ampacity is the term that was conceived by William Del Mar in the early 1950s when he became weary of saying ‘‘current wrying capacity” too many times. AEE/IPCEA published the term “ampacity” in 1962 in the “Black Books” of Power Cable Ampacities [13-11. ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER 12
SPLICING, TERMINATING, AND ACCESSORIES
Theodore A. Balaska and James D. Medek
1.” INTRODUCTION [12-1,12-2,12-3)
A fundamental concept that needs to be established early in this chapter is that
when they are used here a “splice” and “joint” are one and the same! “Cable Splicers” have been around for about 100 years, but officiall ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER I 1
CABLE INSTALLATION
James D. Medek and William A. Thue
1.
INTRODUCTION
Thomas A. Edison installed his earliest cables in New York City in 1882. The
cables were placed in iron pipes in the factory and then were spliced together in the field every 20 feet in an egg-shaped splice casing. Other systems, such as by Brooks, Callender ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER I 1
CABLE INSTALLATION
James D. Medek and William A. Thue
1.
INTRODUCTION
Thomas A. Edison installed his earliest cables in New York City in 1882. The
cables were placed in iron pipes in the factory and then were spliced together in the field every 20 feet in an egg-shaped splice casing. Other systems, such as by Brooks, Callender ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER I 0
CABLE MANUFACTURING [lo-1, -21
Lawrence J. Kelly and Carl C. Landinger
1. INTRODUCTION
Insulated electric power cable manufacturing involves a broad range of complexity depending on the cable design to be produced. Different cable plants may be capable of a limited or broad range of designs. Then, those capable of a broad range ma ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
CHAPTER I
HISTORICAL PERSPECTIVE OF ELECTRICAL CABLES
Bruce S. Bernstein and William A. Thue
1. DEVELOPMENT OF UNDERGROUND CABLES
[1-1,1-2]
In order to trace the history of underground cable systems, it is necessary to exatnine the early days of the telegraph. The telegraph was the first device utilizing electrical energy to become of any co ... more>>
joeoti 10/12/2008 | 0 (0) | 1 | 0 | 0 | English
8
Testing of Synchronous Generators
8.1 Acceptance Testing ..............................................................8-2
A1: Insulation Resistance Testing • A2: Dielectric and Partial Discharge Tests • A3: Resistance Measurements • A4–A5: Tests for Short-Circuited Field Turns and Polarity Test for Field Insulation • A6: Shaft Current and Bea ... more>>
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