What is electrical wires?
Electrical Wires are single electrical conductors, while cables are multiple conductors that have been encased in the sheathing.
Most wires are made of copper or aluminum, but they can also be made of steel. They may be bare or insulated, and they're typically covered in a thin layer of PVC. If they have a PVC sheath, then the PVC is colored to indicate whether the wire is a neutral, ground, or hot wire in your electrical installation. We discuss wire colors in their own section in this guide.
Cables contain at least a neutral wire, ground wire, and hot wire that are twisted or bonded together. Depending on its purpose, the cable may contain more wires. The wires in a cable are insulated in their own color-coded layer of PVC. The group of wires is then encased in an outer sheath to make up the single cable!
How to Identify Wires and Cables？
Wires and cables are one of the most important parts of your home's electrical system. They allow you to connect light fixtures, outlets, and appliances to your home power source (whether it's a generator or the grid).
But how do you know which wires are right for your project? It's easy! Each jacket will have information printed on it to help you choose the correct product for your job. A letter code provides the attributes of the wire, along with material, gauge, and voltage rating.
Naming and Taxonomy
The NEC provides a system with letters to quickly identify what a wire's capabilities are. Some common lettering for wire includes THHN, XHHW, THW, etc.
THHN is the most commonly used type of wire in conduit and cable trays for services, feeders, and branch circuits in commercial or industrial applications. Below are the letters and attributes you'll see regularly in residential wiring:
- T: Thermoplastic insulation - H: Heat resistance - HH: High heat resistance (up to 194 degrees Fahrenheit) - W: Suitable for wet locations - N: Nylon coating
Electrical Wire Color Coding
So you're about to do some electrical work, and you've got a lot of questions. What's the best way to go about it? How can I tell what wires are hot? Is the color coding system different for every country?
The answer is yes. The color coding system is different for every country. And that's why we've written this article: so you'll know exactly how it works in your area!
The first thing to understand is that there are two types of color codes—one is universal, and one isn't. The universal color code was designed by the International Electrotechnical Commission (IEC). It's used around the world and helps electricians identify the purpose of each wire in an electrical circuit.
The second type of color code is often referred to as a local or country-specific code because it varies depending on where you are in the world. These codes were developed by individual countries' governing bodies or organizations with an interest in electrical wiring systems; they may or may not conform to international standards.
what is the red wire in electrical？
When trying to understand your home’s electrical system, you may encounter a tangle of colored wires. Here’s what those colors mean.
Red WiresRed wires are usually used as secondary hot wires. Red wires are also hot and should be clearly marked to avoid the dangers of electrocution. Red wires are commonly used when installing ceiling fans, where the light switch may be.
Green WiresGreen insulated wires are often used for grounding. Ground screws on electrical devices are often painted green, too. Never use a green wire for any purpose other than for grounding, as this may pose a serious threat of electrocution for you or a professional working on your home’s electrical system.
When it comes to wiring your home or office, it's important to choose the right size wire for the job.
The proper wire size is critical to any electrical wire installation. The gauge of a wire relates to the wire's current-carrying capacity, or how much amperage the wire can safely handle. When choosing the right wire, you must consider the gauge of the wire, the wire capacity, and what the wire will be used for.
Wires that are not properly matched to the amperage of the circuits they serve can create a notable risk of short circuits and fire.
where to buy electrical wire？
Selling your electrical wire and copper wire surplus is a smart idea, and International Recovery wants to help you do it. Call us at (0086) 0755 8527 1922 for an easy and reliable solution.
Instead of letting old, broken, or out-of-date electrical wire and copper wire accumulate dust, we make it a simple process to sell your wire surplus and turn it into cash that you can then apply to other areas of your business.
The decision to sell electrical wire and copper wire surplus can be a big help if you’re looking for some extra cash, and International Recovery is always ready to pay cash on the spot before we even leave your site. By selling the old, broken, or out-of-date electrical wire and copper Wire you no longer need, you’ll have funds to use for new projects or internal initiatives at your company.