Питання для самоконтролю:

1. What configuration has the anodes?

2. What does the diode consist of?

3. What is the main function of the two-element tube?

Рекомендована література:

1. Гальперин И.Р., Медникова Э.М. Большой англо-русский политехнический словарь. – Москва: Русский язык, 1987.

2. Федоршин О.П., Євстіфєєв П.Ф., Рябушенко Т.Л. Англійська мова. Практикум з науково-технічного перекладу, – Тернопіль Навчальна книга – Богдан, 2002 – 52с.

3. Чебурашкин Н.Д. Хрестоматия по техническому переводу. – Москва: Просвещение, 1987.

Дидактичне забезпечення: текст, словник.

14 Самостійна робота №14

Тема: Технічний переклад та переказ тексту за фахом: «Лінії електропередач»

Завдання до самостійної роботи:

1. Скласти словник незнайомих слів.

Наприклад:

Слово	Транскрипція	Переклад
distribution	[,distri`bju∫n]	розподіл

2. Вивчити слова на пам'ять

3. Перекласти текст письмово українською мовою

4. Скласти анотацію англійською мовою (письмово)

5. Переказати текст згідно анотації.

“Power lines”

Electrical transmission and distribution lines for electric power always use voltages significantly higher than 50 volts, so contact with or close approach to the line conductors presents a danger of electrocution. Contact with overhead wires is a frequent cause of injury or death. Metal ladders, farm equipment, boat masts, construction machinery, television antennas, and similar objects are frequently involved in fatal contact with overhead wires. Digging into a buried cable can also be dangerous to workers at the excavation site. Digging equipment (either hand tools or machine driven) that contacts a buried cable may energize piping or the ground in the area, resulting in electrocution of nearby workers. Unauthorized persons climbing on power pylons or electrical apparatus are also frequently the victims of electrocution. At very high transmission voltages even a close approach can be hazardous since the high voltage may spark across a significant air gap.

For high voltage and extra-high voltage transmission lines, specially trained personnel use so-called "live line" techniques to allow hands-on contact with energized equipment. In this case the worker is electrically connected to the high voltage line so that he is at the same electrical potential. Since training for such operations is lengthy, and still presents a danger to personnel, only very important transmission lines are the objects of live-line maintenance practices. Outside these specialized situations, one should not assume that being ungrounded allows one to safely touch energized objects; grounding, or arcing to ground, can occur in unexpected ways, and high-frequency currents can cause burns even to an ungrounded person (touching a transmitting antenna is dangerous for this reason, and likewise a high-frequency Tesla Coil can sustain a spark with only one endpoint).

Normally protective equipment on high-voltage transmission lines prevents formation of an unwanted arc, or insures it is de-energized within tens of milliseconds. Electrical apparatus designed to interrupt high-voltage circuits is designed to safely direct the resulting arc so that it dissipates without damage. High voltage circuit breakers often use a blast of high pressure air, a special dielectric gas (such as SF6 under pressure), or immersion in mineral oil to quench the arc when the high voltage circuit is broken.