Electrical Power Cable Engineering (Power Engineering) by Leonard L. Grigsby

By Leonard L. Grigsby

Offers updated assurance of the layout, manufacture, deploy, trying out, operation, and function expectancies of electrical energy cables used worldwide—focusing on low- and medium-voltage cables. Discusses easy dielectric conception; conductors; cable features; electric homes of insulating fabrics; defensive strength cables; sheaths, jackets, and armors; criteria and necessities; splicing and terminating; ampacity; treeing; lightning defense; corrosion; and extra. features a thesaurus of phrases and crucial tables and information.

Show description

Read or Download Electrical Power Cable Engineering (Power Engineering) (Power Engineering (Willis)) PDF

Similar electric books

Operation and Control in Power Systems

In strength method engineering, essentially all result of smooth regulate concept will be utilized. Such an software will lead to a more cost effective, less complicated and better carrier caliber operation and in much less inconvenience when it comes to irregular stipulations. For its analytical remedy, keep watch over process layout commonly calls for the decision of a mathematical version from which the keep watch over procedure might be derived.

Power Electronics Applied to Industrial Systems and Transports, Volume 1: Synthetic Methodology to Converters and Components Technology

Energy electronics is predicated at the switching working mode of semiconductor parts. in this foundation, the recommendations of style (voltage or present) and reversibility of interconnected resources give the chance to use a technique for the synthesis of assorted different types of converters. right here the writer offers the key kinds of parts to be had, consistently from a user’s viewpoint, with the gate drive/fire keep watch over and different auxiliary circuits which are required for his or her right functioning (snubbers, for example).

Civil works for hydroelectric facilities : guidelines for life extension and upgrade

''Civil Works for Hydroelectric amenities: instructions for all times Extension and Upgrade'' explores methodologies and methods for utilising rehabilitation engineering to getting older hydroelectric infrastructure. This record offers guidance for all times extension and improve of hydroelectric works to be used through proprietors, operators, regulators, and engineers contemplating infrastructure rehabilitation or substitute.

Additional resources for Electrical Power Cable Engineering (Power Engineering) (Power Engineering (Willis))

Example text

2 Basic Components of a Shielded Power Cable The essential additional component is shielding. However, where is it placed, what materials are used, and what does it do to the dielectric field? Let us start from the conductor again and move outward fiom the center of the cable. 1 Conductor. Nothing unusual as compared to a non-shielded cable. 2 Conductor Shield. A conducting material is placed over the conductor circumference to screen (shield) out irregularities of the conductor contours. The dielectric field will not be af5ected or “see” the shape of the outer strands 23 (or other conductor contours) due to the presence of the conductor shield (screen).

17 Figure 2-3 Electric Field Lines Bend to Terminate at Ground Plane Surface of Covering . : . : I i .. i t Ground In Figure 2-3, we see considerable bending of the electric field lines. Recognizing that equipotential lines are perpendicular to the field lines, the bending results in potential difference on the covering surface. At low voltages, the effect is negligible. As the voltage increases, the point is reached where the potential gradients are s a c i e n t to cause current to flow across the surface of the covering.

The ICEA minimum requirements of IR (sometimes referred to as ”guaranteed values”) are shown as well to represent values that may be measured in the field. The actual value of IR that would be read in a laboratory environment are many times higher than these “minimum” values and approaches the “typical” values shown below. 45 Table 4-1 Insulation Resistance Insulation ICEA Minimum IHMWPE I XLPE & EPR, 600 V XLPE & EPR, Med. 2 Surface Resistivity. ’’ These terminations or ends, when voltage is applied to the conductor, can have current flow over the surface of that material.

Download PDF sample

Rated 4.70 of 5 – based on 25 votes