Kuparijohdin

Kuparijohdin refers to a conductor made of copper. Copper is widely used in electrical wiring due to its excellent conductivity, malleability, and relatively low cost compared to other conductive metals like silver. Its high conductivity means that electrical current can flow through it with minimal resistance, leading to less energy loss as heat. This property is crucial for efficient power transmission and distribution.

Copper conductors are found in a vast array of applications, from household electrical wiring, telecommunication cables, and electronic components to heavy-duty industrial power lines and automotive wiring harnesses. The physical form of kuparijohdin can vary significantly. It can be a solid wire, a stranded cable composed of multiple thinner strands twisted together for flexibility, or even a flat wire or busbar for specific applications.

The purity of the copper used in conductors is important for optimal performance. Electrolytically refined copper, often referred to as ETP (Electrolytic Tough Pitch) copper, is commonly used for electrical purposes because it achieves a high level of purity. While copper is an excellent conductor, it can corrode over time, especially when exposed to moisture and certain chemicals. Protective coatings, such as tin or insulation, are often applied to prevent degradation and ensure long-term reliability. The widespread use of copper as a conductor has made it a fundamental material in modern electrical and electronic technology.