The temperature marking on a cable is highest temperature that the insulation may be exposed to in operation. It does not imply that the wire is suitable for operation at that temperature. What is does imply is that when cable heating due to current flow is taken into account with the applicable ambient temperature, there is a thermal limit that must taken into account.
When any wire carries current, it heats up a little. If the current density in the wire is very high, the wire gets hotter. At some combination of ambient and current-induced temperature, the insulation may sag, or it's electrical characteristics might change.
Say for example, that a wire is rated at 75C/170F and the ambient temperature is tropical (i.e. 40C/104F). In this case, the maximum allowed temperature rise in operation is 75C-40C=35C/167F-104F=63F.
Sometimes, high-temp cable is needed to survive operation in a cook-top or oven. Even some household light fittings get very hot in operation, such as halogen down-lights. Hence why they often have fibre-insulated wires (rated at 250C) running out to a connector. It is not uncommon for the bases of these lamps to reach 120C/248F on a Summer's day in the average ceiling.
Yes.
Otis F. Boykin invented the wire precision resistor and the electrical resistor. In June 1959, he got the first patent for the wire precision resistor and in June 1965, he got his patent for the electrical resistor.
There is a direct relationship between the length of wire (thus the number of times the wire is wrapped) and the electrical resistance of the guitar pickup, measured at the two output terminals.
The Load wire is always hot (black or red wire) and the Line wire is the one that returns to your fusebox (usually white). Answer above is absolutely wrong written by someone who does not know electricity and will get you electrocuted. The white wire is your neutral wire. The black or red coming from the electrical panel is the line wire. the black or red wire going to the next outlet or light fixture is your load wire. in some cases a white wire will be a line or load and should be indicated with black tape on it denoting it is not a neutral. quick recap is Line = power in, load = power out.
The strings' vibration is translated into electrical current which flows along the wire. The same as a telephone.
If you mean a bare copper wire, that is the "ground" wire.
The term "brown wire" refers to a specific color-coded wire used in electrical wiring. In some systems, the brown wire is designated for live or hot electrical connections.
Wire Sizing Amps
The benefits of using RH wire in electrical installations include higher temperature resistance, improved durability, and better overall performance compared to standard wire. RH wire is designed to withstand extreme heat and harsh conditions, making it a reliable choice for various electrical applications.
Not that I have ever heard of. Electricity produces heat and heat is the cause of most electrical problems. The wire is heating because too much current is being conducted for the size of the wire. You need to either replace the wire with something larger or add another wire. The temperature of the wire has nothing to do with the coating, the heat is being generated inside the wire when excessive current is passing through.
When using a ground wire size calculator for electrical installations, factors to consider include the type of wiring system, the maximum fault current expected, the length of the wire run, the material of the wire, and the temperature rating of the wire. These factors help ensure the proper sizing of the ground wire for safety and efficiency in the electrical system.
The short thick copper wire at a low temperature would have the lowest resistance. Copper has lower electrical resistance than iron, and a shorter, thicker wire has lower resistance compared to a long thin wire, regardless of the temperature.
The common wire in a typical electrical circuit is the neutral wire.
The electrical terminology of a wire with no insulation on it is a bare wire.
When an electric current flows through a wire, the wire becomes warm due to the resistance of the wire. The resistance in the wire causes some of the electrical energy to be converted into heat energy, which raises the temperature of the wire.
To extend the length of an electrical wire, you can use an electrical wire extender. This device allows you to connect two wires together securely, effectively increasing the overall length of the wire.
In an electrical circuit, the black wire is typically designated as the hot wire.