Two reasons:
1. It almost impossible to pull a wire tight enough that it is straight.
2. The sag also can "give" a little if the wires shrink to to cold. If they could not "give" a little, then they would simply break.
Electric poles and wires are usually maintained and repaired by electric utility companies, such as power companies or municipal electric departments. These organizations have trained technicians and lineworkers who are responsible for installing, maintaining, and fixing electric poles and wires to ensure a reliable electricity supply.
The wires that carry electricity are not in contact with the poles, isolated by insulated "bell" spacers and by physical separation. The poles are conductive, as evidenced by lightning hitting them. But they are well grounded and sturdy enough to withstand the strikes. However, a bolt can create inductance that temporarily affects the current flowing through the wires.
Electricity does not flow wires into your home, wires direct the flow of current into your home.
Overhead lines refer to electrical power lines that are mounted on poles or towers above ground level. These lines are used to transmit electricity from power plants to homes, businesses, and other buildings. Overhead lines are a common method of distributing electricity in many regions.
When a switch is open (wires not connected) it is considered off. When a switch is closed it is considered on. If you move a switch and the wires are not connected the the circuit is open and current cannot run throughout the circuit to power the device.
Yes, electricity can pass through two wires if they are connected in a circuit where there is a complete path for the electricity to flow. If the wires are not connected in a closed circuit, the electricity will not flow between them.
poles are the wires and where they are connected
it goes no where, electricity will only flow between the electrical poles. As long as the bird touches nothing connect to the ground or another conductor.
Electric current flows through wires, but to transmit electric power you need two wires with a voltage between them, connected to a power source.
The highest wires on the poles are the ones that carry electricity,the lower ones are generaly phone and cable tv.
it goes through the wires connected to your house
To allow the wires to be connected to a source of electricity.
Electric poles and wires are usually maintained and repaired by electric utility companies, such as power companies or municipal electric departments. These organizations have trained technicians and lineworkers who are responsible for installing, maintaining, and fixing electric poles and wires to ensure a reliable electricity supply.
The wires that carry electricity are not in contact with the poles, isolated by insulated "bell" spacers and by physical separation. The poles are conductive, as evidenced by lightning hitting them. But they are well grounded and sturdy enough to withstand the strikes. However, a bolt can create inductance that temporarily affects the current flowing through the wires.
Before cell phones all telephone messages ran along wires. Wires and poles were set up all over countries, often using electricity poles. These poles and wires are a visual blot on the landscape, but don't damage the environment too much. Cell phones may mean that we can do without the poles and wires, especially if electricity wires are put underground or if everyone has solar panels good enough to be independent.
A wire not connected properly after changing a solenoidÊcan cause no electricity. To restore electricity check that all wires are properly connected and not corroded.
In the evening they have been warmed up by the Sun, so they have expanded and they droop down more between poles.