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Copper is a ductile metal with excellent electrical conductivity properties, which is why it is widely used in the production of wires and cables for electrical systems. With single-core copper cable, there is a single wire made from this material, to which a layer of tin can be applied to provide extra protection against corrosion due to moisture or high temperatures where it is laid.

Single-core copper cables are produced through a drawing process, generally with a round section, which produces a wire that can be wound around reels used for storage and transport. Single-core copper cables are used in various sectors and can be annealed or have different degrees of work hardening.

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Single-core copper cable: uses

Due to the characteristics of the material used, single-core copper cable is used in various sectors, particularly in electrical plant building where it acts as an excellent energy conductor and is therefore used to produce low-voltage cables. Other uses of copper cables include electromagnetic and galvanising applications, as well as the production of screws for other sectors.

Single-core hard-drawn and annealed copper cable

Single-core copper cable can be supplied annealed or with various degrees of work hardening. This determines how flexible the wire is, so when deciding between the different types, it is important to consider how it will be used.

Single-core hard-drawn copper cable is hard to bend so there is a greater risk of splitting; the metal deformation limits are very close to the breaking point. This is due to the fact that the metal forming of the copper tends to harden the material and make it increasingly harder to deform.

It is a different matter for single-core annealed copper cable, due to a metallurgical process in which the copper is brought close to the melting point inside specific ovens and is kept in those conditions for a certain period of time. The annealing process makes the copper more ductile and malleable so it is easier to work to make sheets or thin wires.

As it is more flexible, single-core annealed copper cable is easier to bend and use in conditions where there are bends and small spaces.

The degree of work hardening can vary and there are wires in various levels of hard-drawn, half-hard or annealed copper. Therefore, it is always advisable to assess the usage needs carefully and plan adequate working to get the right level of softening of the material.