Yes, you can reuse copper wire as long as it is in good shape and the insulator has no tears, holes, or cuts. You can reuse almost any electrical component in residential wiring if it is good condition. I personally would never reuse receptacles or switches that have been removed from any home.
conductors
Materials that permit electron flow are called conductors. Metals such as copper, aluminum, and gold are good conductors of electricity due to their free-moving electrons. This allows for the efficient flow of electrons through the material.
A material that allows electricity to flow through it easily is called a conductor. Conductors have low electrical resistance and permit the flow of electric current due to the presence of free electrons. Examples of conductors include metals like copper and aluminum.
Conductors are materials whose atoms have valence electrons operating in energy levels that permit them (the electrons) to be moved easily. Remember that current flow is like musical chairs. Put an electron in one end of a wire and electrons within the wire shift "over" a spot and an electron leaves the other end. If a wire is made of, say, copper (which is selected primarily for its ability to conduct electricity), valence electrons about the copper atoms in the wire occupy energy bands that permit them to be easily moved and the wire will support current flow.
The "metal" in electric wire is called the conductor. Many materials are used to transmit electrical energy, but those most frequently used are copper, copper-covered steel, high strength copper alloys, and aluminum. For more unusual applications, conductors are fabricated from pure nickel (high temperature applications), pure silver, copper-covered aluminum, and a host of metals, metal alloys, and metal combinations. The most common found in everyday wire is copper which is available in stranded or solid configurations. High strength alloys - Though more expensive than copper-covered steel wires, copper alloy conductors are specified because they permit significant size and/or weight reductions especially important in computer and aerospace applications. They offer high breaking strength and greater flex life with only a small increase in DC resistance. To find out more about conductors and view a comparison chart you can visit my blog on my profile.
A substance that lets electricity flow through it is called a conductor (or sometimes, to be more explicit, it is called an electrical conductor). Substances which do not permit the flow of electricity are called insulators.
yes
Yes, in many places, a homeowner can pull a permit for electrical work on their property, but it is important to check local regulations and requirements before doing so.
Yes, semiconductors allow the flow of electricity better than insulators, but not as well as conductors. Semiconductors have conductivity values between those of conductors and insulators, making them useful for controlling the flow of electric current in electronic devices.
Type of work permit that allows a foreign national to work for any canadian emplyer.
The necessary requirements for installing a 100 amp electrical panel in a residential property include obtaining a permit from the local building department, ensuring the panel meets the National Electrical Code standards, having a licensed electrician perform the installation, and ensuring proper grounding and bonding of the panel.
In Canada every electrical installation requires a permit. The minimum cost for a new installation permit is $40.00. Maintenance of existing equipment requires no permit. For larger installations the price of the permit is based on the cost of the electrical job. Ten years ago if the new installation was under 500 dollars it did not require a permit. As government agencies now become privatized, the new companies that are taking over for the government are looking for ways of getting more and more dollars out of the general public. How does the saying go "Squeeze the public until they squeal, then back off a half a turn".