Explore chapters and articles related to this topic
Portable Power Distribution
Published in Richard Cadena, Electricity for the Entertainment Electrician & Technician, 2021
Flexible cords and cables, or more commonly “extension cords” or “stinger cables,” are often used to extend the length of a power cable or to connect power from a distribution unit to an electrical device. There are different types of cables that can be used for this purpose, the primary distinction being the type of outer covering they have, which determines how rugged they are and how they can be used.
Sources of Electric and Magnetic Fields
Published in Riadh W. Y. Habash, Electromagnetic Fields and Radiation, 2018
A cable is defined as a length of insulated conductor, or more such conductors, each provided with its own insulation, which are laid up together. There are many types of cables ranging from heavy lead-sheathed and armored paper-insulated power cables to the domestic and workshop flexible cables used with ordinary appliances. In this part of the book, we are concerned with power cables, which are heavy, generally lead-sheathed and armored. These cables are usually used under the ground to transmit power from place to place within the power network.
Insulation, Coatings, and Adhesives in Transmission and Distribution Electrical Equipment
Published in Bella H. Chudnovsky, Electrical Power Transmission and Distribution, 2017
Cables for transmission are operating above 46 kV; they have traditionally used paper and oil systems as the insulation. The paper is applied as a thin film wound over the cable core. A variation of paper insulation was developed as a laminate of paper with polypropylene (PPP or PPLP), and PILC cables are paper insulated with lead-sheathed cables. MV power cables operate in the voltage range of 5–45 kV and the following types of cables are used more often than others: XLPE insulated power cables; paper-insulated power cables; EPR trailing cables for mines; and bundle conductors MV XLPE types.
Investigation and development of a numerical tool for the prediction and influence of natural fibre poroelastic trim behaviour on automotive cabin noise
Published in Cogent Engineering, 2018
R. K. Dunne, D. A. Desai, R. Sadiku
Lastly, a steady-state, forced response, harmonic analysis was conducted; the procedure of which is similar to the above modal analysis with the only difference being the replacement of the accelerometers with microphones, as shown in Figures 7 and 8, in order to capture the SPL’s across the frequency range of interest. In order to minimise the possibility of contaminated data, tribo-electric and sensitivity effects due to cable whip were reduced by using stiff graphite cables. Data cables were separated from power cables in order to reduce electromagnetic interference. The cables were also checked for sharp bends, cuts or any type of damage since this could inadvertently, cause erroneous measurements (Goelzer, Hansen, & Sehrndt, 2001). Relevant precautions were taken in order to minimise mounting resonances. Background noise checks by using the method were also performed before measuring the cabin SPLs in order to ascertain that the background noise had no effect on the measured results. The shaker was driven with a swept sine signal, which was band-limited to the frequency range of interest and coincident with that of the finite element model.