The repeated expansion and contraction loosens wire. However, aluminum thermally expands much more than copper. Alternativesĭuring the late 1960s and early 1970s, aluminium wiring saw much more frequent use in commerical and residential applications. In places where climate changes frequently like these industries, copper provides safe and efficient use. Aside from being extremely electrically conductive, Copper provides benefits like ductility, high melting point, and corrosion resistance. Therefore, copper demand increases by around 5% in these industries every year. Automobiles and Marine WireĬlimate durability is in high demand for industries like automobiles and underwater applications. Another major reason Copper appears frequently in power transmission is that it is not an expensive precious metal. Copper’s high ductility allows it to shape into numerous places in a household to supply power anywhere. Supplying ElectricityĬopper wires provide a means of transport for power sources to deliver energy to homes, commericial, and industrial facilities. The twisted pairs provide increased bandwidth.
Telephone poles use copper unshielded-twisted pair (UTP) wiring. Copper’s free-moving electron structure allows signals to be sent through telephone wires easily. In the early stage of its use, copper provided wires in telephone poles. Raceways need proper sizing so conductors can fit without overheating but for the maximum amount of copper conductors to occupy the raceway. This pertains to typically Conduit Filling in raceways. For standard industrial applications, a cable sizing/maximum distance tool can help calculate a proper size.Īnother point to keep in mind is the space in between wires to prevent overheating.
#Copper wire code#
According to the NEC Code Book, the maximum amount of voltage drop should not exceed 5%. When it comes to cable sizing, having too much voltage drop makes it difficult for current to travel through copper wires. AWG Copper Wire Table Size and Data Chart at 100☏ It is useful in converting high-speed momentum to electrical currents, a reaction called Force Field Motion Dampening.
Slowing down magnets with Copper is common in braking systems for high-speed trains. Even though Copper is non-magnetic, there are still interactions with magnets that make Copper useful. Copper is in many military tools and applications because it is non-magnetic and non-sparking.
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