What is an electrical wire, and how does it work?
An electrical wire is one of the conductors in your electrical system. It can be made of copper or aluminum and is typically covered in a PVC sheath. The sheath color indicates whether a wire is a neutral, ground, or hot wire. But what are those things?
The first two terms are pretty self-explanatory: A neutral wire carries electricity from your breaker box to the device you're plugging in to, while a hot wire carries electricity back from that device to the breaker box where it gets distributed throughout your home. A ground wire delivers electricity to your breaker box so that it can be distributed throughout your home and also acts as a safety mechanism by providing a path for any excess electricity to get discharged safely outside of your home.
How to Identify Wires and Cables？
Wires and cables are the lifeblood of your home, carrying electricity from point A to B. But they can be tricky to navigate! Here's how to tell what kind of wire you're looking at:
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 regularly see in residential wiring:
T: Thermoplastic insulation
H: Heat resistance (up to 194 degrees Fahrenheit)
HH: High heat resistance (up to 194 degrees Fahrenheit)
W: Suitable for wet locations
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？
You've probably encountered a tangle of colored wires when trying to understand your home's electrical system, and you're not alone. It can be confusing! But we're here to help you understand what each color means, so you can check your wiring system with confidence.
First things first: if you're having trouble with your home's wiring system or it's older than you are, we recommend you utilize a certified electrician. You don't want to make matters worse by getting in over your head!
Red wires are usually used as secondary hot wires. They're also hot, so they should always be clearly marked to avoid the dangers of electrocution. Red wires are commonly used when installing ceiling fans where the light switch may be. If there's already a red wire in place, it may not be necessary to add another one—but do check with an electrician before proceeding, just in case!
Green insulated wires are often used for grounding purposes. Ground screws on electrical devices are often painted green, too—so never use a green wire for any other purpose than for grounding because this may pose a serious threat of electrocution for you or a professional.
Wire sizing is the process of determining the proper size of wire for your electrical circuit based on the amperage it will carry. It is critical to the safety of your home's electrical system that all wires are properly sized—if they are not, you may experience a voltage drop, which can create a risk of fire.
The gauge of a wire relates to the 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 as well as what it will be used for.
Where to buy electrical wire？
It's time to sell your electrical wire and copper wire surplus.
You've got old, broken, or out-of-date electrical wire and copper wire that you don't need anymore. You don't want to let it accumulate dust in your warehouse—or pay to have it thrown away.
International Recovery buys electrical wire and copper wire, so we can make it easy for you to get rid of that surplus inventory.
We're always ready to pay cash on the spot before we even leave your site, so you can turn your old, used, obsolete electrical wire into extra funds for new projects or internal initiatives at your company.
So if you're ready to sell your electrical wire and copper wire surplus, call us at (0086) 0755 8527 1922 for an easy and reliable solution!