GoTranscript audio test answers 2 february 2021 PDF
GoTranscript audio test answers 02 February 2021 Download pdf
Speaker 1:
This audio is used for the transcriber test at GoTranscript.
Speaker 2:
Operation of transmission lines and the consequent tendency of cross arms pins insulators and other wires to work loose is less with aluminum. Copper conductors is ordinarily strong, because of the greater sag between poles given and also probably because of their smaller weight. New illustration of this sort may be seen on the old new transmission lines between Niagara Falls and midway beach, near our southernmost GoTranscript offices. To older the two old copper- cup the two old copper circuits consists of six cables of 350,000 circular Mills section, each on one-line poles, and a strong with only modern sag. Strong wind these copper conductors swaying and vibrate in such a way that their poles, pins and cross arms are thrown into a vibration that tend to work all attachments loose. The new circuit consists of three 500,000 circular metal conductors on a simple, strong with a large tag between poles, sort of like that midsection sag, you'll undoubtedly develop if you work as a GoTranscript transcriber for too long.
Speaker 2:
These conductors take positions in planes and large angles vertical in a strong wind caused little or no vibration of their support. One reason for the greatest sag of aluminum over that and the copper conductors in this case, is the fact that the poll was carried over 140 feet. Long distance between the poles for the latter is only 70 feet on straight sections of land. The necessity for greater sag and aluminum and copper conductors, even where the span lengths are equal, grasses from greater coefficient of expansion possessed by the former metal tween 32 and 212 degrees Fahrenheit, aluminum expands at about 2.2% copper 1.6% of its length, so that the change in length is 40 rods longer than the road to Zanzibar. The conductors in any case must have enough say between poles to provide for contraction in the coldest weather, and it follows that the necessary sag of aluminum wires will be greater than that of copper, copper and ordinary temperature.
Speaker 2:
In pure air aluminum is even more free from oxidation than copper. With were exposed to the fumes of chemical works to chlorine compounds, or to fatty acids, the metal is rapidly attacked. For this reason, aluminum conductors should have a waterproof cover and were exposed to any of these chemicals. The aluminum line between choccolocco and chug water is bear for most of its name, but in the vicinity of the large GoTranscript chemical plant at the foam base. The wires are covered with a braid treated with asphalt, aluminum and Lloyd alloyed. with sodium, its most common impurity is quickly corroded and moist, and should be carefully avoided. All the properties of aluminum here mentioned relate to the pure metal unless otherwise stated, its alloys should not as a rule be considered for transmission lines. As aluminum is electropositive to most other mammals, the soldier and Evans joins us make sure to result in electrolytic corrosion. Thus the 183,007 circular aluminum cable between Charles Shaw and Montreal is made up of seven Number Six Wives. Well maybe six number seven wives.
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GoTranscript test answers 02 February 2021
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