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Why do engineers put up power lines so that they are slack in hot weathers?
Wiki User
∙ 11y ago
Because, in the cooler weather, the lines contract. If the warm weather slack were not engineered into the system, the contractions could break the wires or pull the poles down.
Wiki User
∙ 12y ago
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Why do engineers put power lines so that they are slack in hot weather?
in the winter season materials such as rubber insulators and copper wire shrink and in the summer they expand just like wood. Therefore slack is needed on powerlines in relation to the weather so there is a little give to them. Engineers have nothing to do with the slack in the lines, it occurs naturally. In the sunlight objects expand a little due to the heat. This goes for roads, bridges, sidewalks, shingled roofs and hanging power lines. They sag more in the summer than in the winter. Engineers actually have to find ways so that they wont get slack. This expansion and contraction of any given material will actually shorten the life of it over time, and it will have to be replaced more often.
In the summer the power lines hang down between the posts then why dont the engineers tighten them up?
When objects are cooled down, they contract. Engineers who put up telephone wires in the summer leave the wires hanging slack so that in winter, the wires have a chance to contract without pulling the poles and damaging property or infrastructure.
What is slack span inthe transmission power line?
Slack span is the Gantry and deed end tower span. this is no tension.
Why do telephone wires in warm weather slack?
All materials expand with temperature increases. This expansion in the metals and plastics of phone lines would cause them to lengthen, and thus go slack.
What is use of slack bus in ac power flow and dc power flow sepratly?
For make a system balanced losses in power
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They used a zig-zag layout to convert linear expansion into sideways movement. They also used this solution to provide slack when crossing fault lines. <><><> The pipeline is also insulated, and uses "heat pipes" to pull heat from soil that must stay frozen.
What do you mean by organizational slack?
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