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What is the reason during the summer when they set up electrical cable they allow the cables to sag?
Due to the thermal expansion of the wiring materials, the wires expand in both width and length. This affects electrical transmission lines, telephone lines, and telegraph lines because of the large space between supporting poles.
Example : Copper (Cu) Thermal Expansion= 17.6 μm/m/oC
What else can I help you with?
When Ontario Hydro workers set up electrical cables during the summer they allow the cables to sag. Suggest a reason for this. In your answer refer to the particle theory?
i know someones going to be on this sooooooooo....... they sag because the hydro workers know, from the heat the cbles will sag during the summer, so they start the sag so they cant sag anymore
Why are wires hung loosely in summer?
beacuse is good
Why cables sag?
Cables are made out of metals which has the property of expanding on heat and contracting on cold due to elasticity hence they sag during summer
Why engineers hang power cables from pylons in summer leave the cable slack?
Engineers leave power cables slack when hanging them from pylons during summer to accommodate thermal expansion. As temperatures rise, the metal cables expand, and the slack allows for this natural expansion without creating excessive tension that could damage the cables or infrastructure. This practice ensures the integrity and longevity of the power transmission system while maintaining safety standards.
Why does the feet sometimes feel cold even during the summer time?
blood circulation issues can be the reason for this.
What was one reason wealthy planters Lives in Charles town to during the summer month?
the weather was warm
When was The Last Summer of Reason created?
The Last Summer of Reason was created in 2001.
Why does classes ends in the summer time?
The most obvious reason would be that in the past when we were primarily an agrarian society, children were needed to work the fields during the summer.
Why do you have summer Olympics?
We have do have the Summer Olympics because during summer there are certain activities that are best suited to be held then. The other reason is that it gives certain countries especially in Africa and Asia a chance to participate in such games.
Is it wrong for a 23 year old university student to not work during the summer?
If you can afford not to work, then there is no reason for you to work.
What reason is there to take summer school?
Basically, there are two reasons why students would sit in school during the summer. One reason would be to repeat a course he or she failed. It's quicker to do this during the summer months than having to stretch it over a complete term. The other reason is to advance quicker towards graduating by having the credit for completing a course early. This is especially a good idea for those planning to attend college.
Why must telephone cable be put up slack in summer?
In winter the cables will contract (shorten) due to the cold. If put up too tight in summer, on contraction, the cables would cause strain on the poles and fittings, and could even snap.
