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Вариант №10 I. Translate the text: Care of the electrical equipment As a rule electrical equipment operates reliably. Still it does not mean that i
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Вариант №10
I. Translate the text:
Care of the electrical equipment
As a rule electrical equipment operates reliably. Still it does not mean that it deserves no attention. It is necessary to give the equipment frequent inspections, keep it well cleaned, lubricated and repaired. Undue heating, vibration, sparking should be immediately removed.
Heating may be due to overload or to a short circuit between turns, lack of oil in bearings. Vibration may be due to unproper foundation, unbalance in the moving parts of the machine.
Conductors may get heated because of overload or by reason of damage of the insulation of the conductor.
An electrical machine of any kind requires certain conditions under which it may operate reliably: temperature and freedom of access of surrounding air, need for protection against dirt, dust, type and duration of load, etc.
Rotating machines should be placed on solid foundations.
Conductors should be protected against mechanical damage.
All measures of safety precaution must be undertaken.
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