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Basics of Telephone Wire [2010-04-27]
There is a widely held misconception that telephone wiring is an impossible feat for the average non-technical person. The fact is that small wiring jobs in your house or small business can be much easier than you’d expect, much easier than shelling out exorbitant hourly fees to the phone company. If you can figure out how to wire speakers for your new stereo, you can easily wire your home or small office for your new phone system. Wires, plugs, and the network interface The basics of the wiring is pretty easy to understand. Most telephone wires are one or more twisted p...
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Types of Electrical Cable Sheathing [2010-04-27]
Electric wire–more correctly known as “cable”–comes in a variety of sizes (gauges) and insulators depending on its function. Each type of insulation, or sheathing, serves a specific function, and it can be dangerous to use inappropriately sheathed cable in certain situations. Conversely, using heavier-than-necessary cable is a waste of money. Knowing what type of electric cable to use in a given situation is an important part of any electrical project. Nonmetallic Sheathed Cable The most common cable used in construction is nonmetallic sheathed, usually a...
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coaxial cable [2010-04-27]
A type of wire that consists of a center wire surrounded by insulation and then a grounded shield of braided wire. The shield minimizes electrical and radio frequency interference. Coaxial cabling is the primary type of cabling used by the cable television industry and is also widely used for computer networks, such as Ethernet. Although more expensive than standard telephone wire, it is much less susceptible to interference and can carry much more data.
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What Should I Consider When Buying Power Cables? [2010-04-21]
Power cables are used to extend the distance between an electrically powered item and the power outlet. There are five items that you should consider when buying power cables: quality, number of outlets, length, warranty, and cost. All these factors are important when deciding to purchase power cables.Electrical power is created in power generation stations and moved around the country using a network of power transmission stations and high voltage cables. The electricity is provided to the household circuit board. From this source, all the power outlets in the building allow electri...
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Network Cable [2010-04-21]
Network cable is used to connect and transfer data between computers and a network. There are different types of network cable, and the appropriate type to use will depend on the structure and topology of your network. The most commonly used types of network cable are the twisted pair, coaxial, Ethernet cross over, and fiber optic.The unshielded twisted pair (UTP) cable is used in many Ethernet networks. It has four pairs of wires that are housed inside of the lining of the cable. Each pair is twisted into several additional twists to prevent interference from other devices on the ...
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How Coaxial Cable Works [2010-04-21]
Like any electrical power cord, coaxial cable conducts AC electric current between locations. Like these other cables, it has two conductors, the central wire and the tubular shield. At any moment the current is traveling outward from the source in one of the conductors, and returning in the other. However, since it is alternating current, the current reverses direction many times a second. Coaxial cable differs from other cable because it is designed to carry radio frequency current. This has a frequency much higher than the 50 or 60 Hz used in mains (electric power) cables, reve...
