For almost 200 years, copper has actually been the material of choice for electric connectors. Copper has been supplied in electric wiring because the creation of the electromagnet and the telegraph in the early 1800s, and became even an ext widespread through the invention of the phone call in 1876. Today, copper electric connectors space still provided in telecommunications, and also power generation, distribution, and also transmission.

You are watching: Why is copper used for most electrical wiring

Why is copper offered for most electrical wiring?

All metals have actually some amount of resistivity to electrical currents, which is why they need a power source to press the current through. The reduced the level of resistivity, the an ext electrical conductivity a metal has. Copper has low resistivity, and also therefore is great conductor.

*
Copper is also less oxidative than various other metals. Oxidation happens when the oxygen and also moisture in the wait react with a metal’s surface. This reaction corrodes the metal and produces a film-like covering, like rust on steel. Copper does no rust, but will develop a greenish patina called copper oxide. Unlike rust, however, this covering actually protects the metal from additional corrosion and doesn’t interfere v conductivity.

*

How does aluminum wiring compare to copper?

While aluminum can be used for electric needs, copper is far better in a variety of ways. For one, aluminum has actually lower conductivity 보다 copper, and is also an ext prone to oxidation. The aluminum oxide that creates on the surface is not conductive favor copper oxide, which means it will interfere v the circulation of electricity. In order to combat this oxidation, aluminum need to be covered with one anti-oxidant cream.

There can likewise be safety worries with aluminum electric connectors. Aluminum expands and contracts together it heats and cools, therefore aluminum wiring can loosen end time, producing a fire hazard. This safety issues can it is in mitigated, however doing so requires special considerations, such as unique fixtures designed for aluminum wiring, Arc error Interrupters, and “pig-tailing” copper wire to the end of aluminum wires. In contrast, copper wiring is safer to use, with fewer forced precautions.

What room some best practices because that copper electric connectors?

Even though copper has fewer safety issues than aluminum, all electricity is dangerous. While functioning on a wiring project, be sure to follow proper safety precautions.

When making use of copper electrical conductors, make certain to:

Use the exactly copper cable connector because that the size and variety of wires she connecting.Only use UL (Underwriters Laboratories) detailed electrical connectors.Make certain wire ends are totally covered by the connector. Electric tape is not a safe alternate for extending exposed wire.When connecting wires that have previously been connected, the ends might be damaged. Trim the ends and re-strip the insulation to ensure the safest link possible.Once you’ve finished, test that the connection is certain by gently tugging top top the wires.

See more: S I Will Increase The Thing, See, That'S What The App Is Perfect For

Mead Metals, Inc. Stocks copper commodities in a variety of sizes and also tempers. Us can likewise support amounts to accommodate high volume and low volume copper needs. When you’re in require of copper coil or copper sheet products, Mead steels is below to help.