Home Electrical Wiring



             


Friday, May 30, 2008

Tips On Wiring A Doll's House

Lighting warms a doll’s house and adds atmosphere. It's not hard to do but requires some planning. Here are a few tips to help you on your way.

There are different ways you can wire a dolls house. I opted for the standard round wire system as it seemed the easiest and cheapest.

You need a socket strip with at least 12 sockets, a fuse and an on off switch and a transformer. Each individual light is then plugged into the strip either directly or via an extension cable.

Assemble the shell of house then think about where your lights and wiring are going to go...it's NOT something you can do at the end. For a ceiling light paint or paper the roof of the room then drill a small hole in the centre and feed the wire through to the room above. My floors /ceilings are MDF so it was quite easy to then make a groove with a wood chisel from the hole to the back of the house...the wire runs along the groove and when covered with carpet can't be seen. Finally make a small hole, near the floor, in the back wall for the wire to go through and plug into socket strip.

You need to plan the lighting and cut your grooves before decorating.

Wall lights are most easily fitted to rear walls. Decorate the wall then drill a hole for the wire to pass through.

It’s really not difficult and brings the house to life.

Joolz has recently built a doll's house from kit form. If you found this article helpful you can pick up more tips on lighting and decor at http://www.mydollshouse.info

 

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Wednesday, May 28, 2008

Electrical Wiring – An Introduction

Electrical systems vary widely given their different uses. That being said, the basics of wiring something are not that hard to understand.

Wiring is the insulated conductor that carries electricity. The wire that is used in a building such as a home or a factory is called building wire. The wire inside a piece of machinery is usually called equipment wire. Wire is measured by its diameter. This measurement is known as the wire gauge. Wire gauge runs in reverse numerical order. In other words, the higher the gauge number, the smaller the wire diameter.

Electrical wiring is governed by strict codes. Electrical codes began in the 1880’s at the same time the first extensive wiring was being done. In 1897, the National Fire Protection Association established the National Electric Code (NEC). The National Fire Protection Association was a group of Insurance companies that were concerned about the potential danger inherent in faulty electrical wiring. They had cause for concern. Early wire was bare or covered with cloth. There was little understanding of the need for insulation.

The NEC is used in conjunction with local, country, and State codes that strictly control electrical wiring. The codes are concerned with proper size of wire and with insulation. Factors that are considered are the expected load, the frequency of modifications, and the nature of the environment where the wire is used. Homes have small loads, infrequent modifications and a very non-corrosive environment. Commercial establishments are usually in the middle. The load demands are sometimes higher, and modifications are not infrequent. The factory or industrial site has a very high demand. Modifications are frequent, and the environment is often highly unstable.

Materials used in wire have varied over the years. Copper has always been the first choice because it is such a good conductor and is very flexible. In the 1960 to 1970’s, aluminum wire became popular due to the rising cost of copper. Insulation was usually rubber although rubber tended to corrode due to exposure to moisture and air. PVC compounds are now used most commonly as wire insulation. Insulation is made in different colors to identify wiring circuits in a system.

Electrical wiring has given rise to various connectors. The place where a wire is joined to another wire or attaches to a device is the point where there is the most danger of a spark. It is important that connections are secure. Insulated plastic wire nuts are used to attach two wires. There are also special tools used by electricians to deal with the installation of wiring. An example is the combination wire cutter and stripper. The stripper is used to remove the insulation from the end of the wire so that the bare wire might be attached.

Find an electrician at ElectricianCompanies.com.

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Monday, May 26, 2008

Car Audio Wiring

A significant part of your entire car audio system consists of just wires. There are all kinds of cables and wires involved in installing a car audio system. You have power wires, speaker wires, amplifier cables, power capacitors, and what not. It is always better to be equipped with at least the basics before you go in for car audio installation.

The power wire is an important part of the amplifier installation. Select the proper gauge and fusing. A proper gauge prevents the amplifier from being choked off by the size limitations of the wire. Choose power wires with lots of strands, so that they are easier to install and don't break while passing through the numerous corners of the car. The jacket of the wire should be of a material, which can resist chemicals like oil and battery acids, which can wreak havoc on substandard wires.

You can go for wires with large number of strands for the car audio speaker wires. The jacket is not that important in this case, because the speaker is not placed in regions where it could encounter chemicals, as in the case of power wires. Oxygen free copper wiring is always recommended for car audio speaker wires. The size of the speaker wiring depends on the power going in to your speakers and the total length between the amplifier and the speakers.

Signal cables are otherwise known as RCA cables and assume importance for their noise rejection properties. Try and go in for a quality RCA cable, which would ensure trouble free performance in the long run. It is recommended that you go in for "twisted pair" cables. They are better at noise reduction. Needless to say, the quality of wires connecting car audio power capacitors and batteries should also be good.

One can find extensive information on car audio wiring by visiting online resources on the subject. Perhaps car audio professionals are best placed to offer you great advice on car audio wiring.

Car Audio provides detailed information on Car Audio, Discount Car Audio, Wholesale Car Audio, Car Audio Systems and more. Car Audio is affiliated with Car Stereo Installations.

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Ceiling Fan Wiring

Wiring a ceiling fan is surprisingly simple. Often times it is no more complicated than the wiring of a light fixture. As with any electrical wiring, make sure all wire connections are made securely with the proper size wire nuts, that they are not loose and that no copper strands are showing. Most "house wiring" should be 14 or 12 gauge solid copper wire attached to a 15 or 20 amp 120vAC circuit respectively. Consult a professional if you encounter something varying from this and are not aware of how to safely handle it.

Most commonly ceiling fans will have 4 wires, or 3 wires plus a ground. Black, white, green, and an additional color (usually red, blue, or black/white striped). The black wire is the hot lead for the fan motor. The red/blue/striped wire is the hot lead for the optional light kit. The white wire is the neutral lead for both the fan motor and light kit. The green wire is ground for the entire assembly.

In all cases the neutral (white) wire from the fan assembly should be attached to the neutral (usually white) lead from the house wiring. Note that if you encounter a white wire with a marking piece of colored tape attached, this could be used to signifiy it is being used as something other than a neutral.

The ground (green) wire or wires from the fan assembly should be attached to the ground (usually bare, sometimes green) lead from the house wiring. Some older houses may not have a separate ground lead and use the metal conduit and electrical boxes as ground. In this case you would attach the ground wire from the fan to the electrical box (and/or mounting plate) with the appropriate screw or clip.

The two remaining leads are the hot wires for the fan and it's light kit. If you have a fan with no light kit, connect the black wire to the hot lead (usually black) from your power supply. For a fan with a light kit you would connect both wires to the hot power supply lead, unless your house is wired to switch the fan and light independantly.

For more scenarios, and more detailed information and wiring instructions, see: http://www.ceiling-fans-n-more.com

This article created by Dan "Spiffy" Neuman. Read more of his great works at http://www.ceiling-fans-n-more.com

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Friday, May 23, 2008

Network Wiring Standards

There are two wiring standards for network cabling. T568A and T568B are the two standards for the RJ-45 or 8-position modular connector, permitted under the TIA/EIA-568-A wiring standards document. The only difference between T568A and T568B (also known as Weco, AT&T 258A) is that the orange and green wire pairs (pairs two and three) are interchanged. How to decide which wiring pattern to use:

1. Does the job specification call out a wiring pattern?

2. Does the customer/end user have a preference for T568A or T568B?

3. Have patch panels already been purchased for the job? If so, they will probably be either T568A or T568B. The jacks should be wired to the same pattern as the panels.

4. Are you adding on to an existing wiring plant? If so, your new wiring should match the existing wiring.

If none of the factors above apply, either T568A or T568B may be used. It is important to ensure that the workstation connectors and the patch panels are wired to the same pattern. T568B is commonly used in commercial installations, while T568A is prevalent in residential installations. For these reasons, we almost always use T568B for unspecified installations.

One bonus is that most networking equipment presently on the market have wiring diagrams for either T568A or T568B. Since the difference is only the switching of two pairs of wires, it is easy enough for manufacturers to print both standards on their hardware. For example, a patch panel that is labeled for T568A/T568B will usually have the color-coded wiring diagrams above and below the actual punchdown. One will typically be labeled T568A and the other T568B. This type of hardware is preferred by installers due to its flexibility.

Dean Novosat is computer expert and network engineer. He is the author of including How to Wire Networks for Profit. He has several websites including http://www.YourOwnNetwork.com and http://www.sageadviceltd.com.

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