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PLS POLE - .BAK SAMPLE VERTICAL DEAD END STRUCTURE
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On this post, i will share to you a sample of a .bak file. Vertical dead end construction using strain insulators.
This type of cable can be classified as follows: 1. NEC compounds 2. Elastomers 3. Thermoplastics 4. Thermosettings The rubber and rubber-like insulated cables enjoy their popularity owing to moisture resistance, ease of handling, ease of splicing, and extreme flexibility. Elastomers are materials that can be compressed, stretched, or deformed like rubber and yet retain their original shape. The thermoplastics materials soften when they are reheated, whereas thermosetting-type insulation has very little tendency to soften upon reheating after vulcanization. The earlier oil-based natural rubber compounds have been replaced by synthetic materials, which have better electrical and mechanical characteristics. The following synthetic rubber-like compounds are in use today: Ethylene propylene rubber (EPR) , an elastomer compound: EPR is commonly used in power cables, but is also gaining use in telecommunications and other types of cables. EPR possesses good chemical,...
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Photo Courtesy of http://www.classiclightningprotection.com/index.html Metal oxide arresters protect the equipment from high voltage surges by absorbing the energy from the surge. Hence, the energy handling capability (or also called "energy absorption capability" or "energy withstand capability") is an important consideration in the design and application of metal oxide arresters. Most manufacturers publish energy capability values of arresters. However, there are no specified tests either in IEEE/ANSI, or IEC standards. Hence, there is confusion in using these important application parameters. Both IEEE and IEC are contemplating writing standardized tests for the arrester energy handling capability. When metal oxide arresters are energized, valve elements of the arrester will absorb energy which results in a temperature increase of the valve elements. Under normal operating conditions (i.e. absence of overvoltage) there is a balance between the heat...
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