Power transmission line

Series unalloyed Al > 99 Al Weak but ductile and o good electrical conductor power transmission lines, cooking foil. 

In spite of the fact that all elements of the systems of production, conversion, transportation and consumption of energy are improving continuously, the growth of national incomes calls for an appropriate growth in the utilization of energy. This can be attained through an increased production of fuel and construction of new and more efficient power plants, pipelines, power transmission lines and so on. 

V7. High Voltage Power Transmission Lines Electric Currents. The chief hazard associated with operations near such lines is the possibility of being electrocuted should a cap leg wire or leading wire be thrown by the blast to make contact with the live power line... 

The following recommendations are offered when blasting near power transmission lines ... 

Before conducting electric blasting operations in the vicinity of power transmission lines, it is advisahle to check (in the presence of power company representative) for ground currents. Also it is advisable to determine whether or not measurable voltages can become more hazardous when peak power levels are transmitted. To conduct these... 

Electrostatic Currents Caused by High Voltage Power Transmission Lines. See under ELECTRICITY, EXTRANEOUS AND HAZARDS ASSOCIATED WITH IT... 

With practical, low- to medium-capacity generating schemes, local generating stations for isolated and sparse geographical areas can conserve major costs in installing and maintaining long-power transmission lines. 

The uses of aluminum are similar to those of the light metals, some of which have previously been discussed under magnesium. Aluminum is also used in fabricating wire cables for electric-power transmission lines in the manufacture of kitchen utensils, furniture, and paint and in producing a wide variety of other useful articles. In connection with the general topic of alloys, attention is called to several important alloys containing aluminum. 

Although there is no interference from other NQR signals, other types of signals may interfere with NQR explosives detection. For unshielded detector coils, the primary culprit is RF interference (RFI). Most NQR frequencies of interest for explosives detection fall in the frequency range of 0.5-5 MHz. The biggest problem in this range is the amplitude modulation (AM) radio band, from 0.5 to 1.5 MHz. Besides radio transmissions, other sources of RFI can include nearby electrical equipment, power transmission lines and lightning strikes. 

As a coating offers increased anti-icing effectiveness and durability than fluorocarbon and silicone elastomers. These icephobic coats can reduce the accumulation of ice on products such as rooftops, aircraft, radomes, antennas, ships, and power-transmission lines. The weight of such accumulations of ice has led to aircraft crashes, fallen power lines, etc. The icephobic coats reduce the adhesive force between ice and a surface. Polyphosphazene elastomers possess these desired properties, in addition have low glass transition temperature (Tg), good environmental stability, curability, and moderate cost. 

Many familiar heal transfer application. involve natural convection as the primary mechanism of heat transfer. Some examples are cooling of electronic equipment such as power transistors, TVs, and DVDs heat transfer from electric baseboard heaters or steam radiators heat transfer from the refrigeration coils and power transmission lines and heat transfer from the bodies of animals and human beings. Natural convection in gases is usually accompanied by radiation of comparable magnitude except for low-emissivity surfaces. 

The relief was short-lived, however. A few months after Pumalin became a sanctuary, a consortium of power companies led by Endesa announced a huge new project—four enormous dams on Patagonia s two largest and most wild rivers, the Pascua and the Baker, as part of a large-scale hydroelectric project to provide power for development to the north. If the project is carried out as proposed, thousands of acres of virgin forestland will be flooded, and even more will have to be cut down for service roads, substations, and power transmission lines. 

Libich S, To JC, Frank R, Sirons GJ. Occupational exposure of herbicide applicators to herbicides used along electric power transmission line right-of-way. Am Ind Flyg Assoc J 1984 45 56-62. 

Power Transmission Line - An electrical conductor/cable that carries electricity from a generator to other locations for distribution. 

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