High tension wire is a wire that is used to transmit electrical energy at a high voltage across long distances. They must have a low resistance to minimize heat losses while still being able to endure high voltages. Because of this, only special materials are suitable for high tension wiring.
Types of material used for high tension wiring include copper and aluminum. Copper is the preferred choice because of its good conductivity and resistance to corrosion when exposed to weather conditions. Aluminum wiring can be used if proper protection is provided. However, because it is so flexible, you will need to keep an eye out for damage to your system if aluminum is used.
Because high tension wires carry large amounts of current over long distances they should be kept away from any object that might conduct electricity such as water pipes or power lines. This is especially important in areas where lightning is likely to strike because if both your copper and aluminum wiring come into contact with a bolt of lightning, you could have a problem.
Lightning can also cause problems with ground faults. If a metal object such as a metal chair collapses onto a circuit breaker panel, you may have created a ground fault. Ground faults occur when there is a difference in electric potential between two points in the circuit.
A high-tension cable may carry over 1000 volts between conductors and 600 volts between conductors and ground. Transmission over high-tension power lines necessitates extremely high voltage.
The term "high tension" means that the electrical potential is very high relative to normal electricity sources like house batteries or generators. High tension wires must be kept at a safe distance from people, animals, and equipment to prevent injuries caused by contact with these electrified cables. The distance between high-tension wires should be at least 1/4 of a mile for safety reasons. Wires carrying different voltages should be kept at least 10 feet apart.
High-tension power lines are used in large transmission networks to connect distant power stations with many consumers along routes that otherwise would need multiple smaller transmissions lines. Using high-tension power lines allows operators to use smaller, less expensive wire than if they had to rely on lower voltage transmission lines alone. This is particularly important when extending service into remote areas where it may not be economically feasible to build full-size power stations with their own generating facilities.
High-tension power lines are also used in local distribution systems to connect houses with underground wiring centers up to about three miles away.
If a wire or cable is rated for more than 1,000 volts, it is considered high voltage. The term "high voltage" can refer to a single wire or a multi-conductor cable. High voltage wire or cable is most commonly used for electrical power transmission. It must be specified when installing any kind of wiring system because it requires special techniques to install and use safely.
High voltage wire or cable is made from steel or aluminum conductors insulated with polyvinyl chloride (PVC) or other materials. The conductors are then covered in a protective layer of insulation. At the ends of each conductor there should be one end fitting, usually metal, attached. These end fittings are designed to match up with corresponding end fittings on other wires or cables. A core consisting of several strands of glass fibers is then wrapped in foil or tape to provide extra strength and prevent abrasion. This is then covered in an outer coating to protect it from damage and to provide a good surface for painting or staining.
Power lines are hung from towers or poles placed at intervals along roads. The lines are often extended over long distances, so they need to be strong enough to support their own weight as well as that of any vehicles that might hit them. Power lines are also vulnerable to damage from lightning strikes and wind-related events such as hurricanes and tornadoes.