These are additional, short branch extensions to a ring main or radial circuit. A single length of 2. When adding spurs to circuits, remember that lengths of cable must be set into walls in horizontal and vertical lines only ie. These are basically multi-point radial circuits that can take two forms , and are often a combination of both of these:. Loop-in lighting circuits have a cable that runs from the consumer unit and out to several ceiling roses which directly link to each lighting pendant and its switch.
The more old fashioned junction box circuits use junction boxes positioned on the main cable to distribute power to a lighting pendant and has a separate connection to each light switch. The latter is often used when adding lighting points to an existing circuit. Such circuits are designed to support no more than eleven W bulbs , or a maximum of W. Site Pages. Featured Articles. Wiring your tiny house is dependent on your design and use, but in general, people wire their tiny house like this:.
That usually means a amp circuit breaker on each circuit of your house except for appliances and HVAC, as they often are large draws. Here is a layout diagram of how I placed my electrical connections when I built my tiny house. You can see how this diagram differs from the functional diagram by showing the locations of the outlets, lights, fans and other connections.
When reading a diagram or making your tiny house plans, electrical symbols are shorthand to know what goes where. They can quickly tell you what is going on within a house. There are a lot of elements that go into wiring a tiny house. Choosing the right components and connecting them correctly is key to a safe install. The NEC dictates many if not all of these considerations, so make sure you follow those guidelines.
The breaker box is the central hub of power for your entire tiny house. The power comes from a power source the grid, solar panels, etc. My suggestion is to have at least 10 spaces in your box for an approximately amp box. In many cases, your power company will default to a amp service, but you may be able to request a smaller one. The wiring for your tiny house will typically be done with Romex a brand name used broadly to describe this type of wire , also known as non-metallic sheathed wire that is typically used in residential wiring.
One quick point I want to make about terminology. You have wires and cables. Wire is a single solid copper conductor, while cable is several strands of smaller copper conductors combined into a bundle. The thing to remember about wire gauge is the bigger the number, the smaller the wire.
Typical wire sizes for residential are 14 gauge, 12 gauge, and 10 gauge. Romex also come with different numbers of conductor strands that are bundled up to make the wire. The wire labels on Romex packaging are a combination of the wire gauge, followed by the number of conductors that make up the cable.
For example, a cable that is made of 2 conductors plus a ground that are 14 gauge in size, will be labeled In most cases, wire colors are used in a standard way, but you should never assume this.
Usually the conductors in the wire are exactly the same, just with different color coatings for ease of keeping track of which one is which. The most common convention for wire color coding is the following:. So be smart. There are other cases where the colors will be different. Breakers are safety devices that stop the flow of power when there is an overload or a short in the circuit. Below is a chart to give you an idea of common pairings.
In my tiny house, I had a amp double pole circuit breaker for my minisplit and the rest were amp single pole breakers. The idea here is that in wet environments, more risk exists.
Code prescribes where these are used, so make sure to follow it. This is one you might not be as familiar with, but similar to GFCI, it stops the flow of electricity when it senses an arc. Arcs can happen from improper wiring, a nail being driven through wires, insulation being compromised, or some other issue.
These are now generally required in all bedrooms and have been shown to reduce the risk of house fires pretty significantly. Refer to your local codes for guidance. Grounding A Tiny House. Grounding is a backup pathway for electricity to flow from the source to the ground so it can dissipate. You can ground your tiny home by connecting the breaker box ground bar to the trailer and to a grounding rod.
A grounding rod is a foot copper rod driven into the earth with a copper conductor tied to it. You want to make sure there is a direct flow from the ground connection at outlets to the ground bar in the breaker box, and from there to the ground rod. Many people have asked me about volt wiring for a tiny house — mainly those who want to be off the grid. The measurements of the PVC electrical pipes were also taken.
In this environment, a simple electrical outlet was used instead of the GFCI because, as it was the first environment to be elaborated, we were missing some elements and it was agreed with the teacher to place the GFCI in the kitchen environment. After having the elements screwed to the screen, the live, neutral and ground cables were placed in the male connector that would be the part of the power supply. The simple electrical outlet connected the live wires to the screw of the small stripe, neutral to the screw of the longest stripe, and ground, and splices were placed on the respective cables to continue the lines to the other elements.
The ground wire is connected to the switch and the live wire that comes from the power supply is connected to the end of the two screws and the live wire that would come out to the two lights so that they would go connected in series.
The neutral wire runs through the switch box, but runs directly to the incandescent bulbs. The hexagonal box where the light is installed is grounded with the ground wire and a triple connection is made for the live and neutral wires of those that come from the switch box, the wires that are connected to the light and the wires that they continue to the next incandescent bulb.
Finally, the hexagonal box of the next incandescent bulb is also grounded with the ground wire and the live and neutral wires are connected to the incandescent bulb. In this environment we use the two Playwood boards joined with 2 hinges.
We reuse the V plug also made from the first environment. We arrange boxes as seen in the image to cut electrical tubes to size, so that the environment will be as orderly as possible. It should be noted that the red wire represents the hot wire, the white wire the neutral and the yellow wire represents the ground. We place all the tubes cut to size mentioned in the previous step. And we proceeded to introduce the cables later, we used a triple splice in the 4x4 box in the ground to connect it to the Ground screw.
We proceeded to pass the red, white and yellow wire to the outlets in which we used triple junctions to energize the outlets and for the red, white and yellow wire to continue until the next section of the circuit.
After the 4x4 box we take the red, yellow and white cables to the first three-way switch. In this segment we add another hot wire that goes from the first Three-way switch to the second directly, and another red one that goes from the second Three-way switch to the two incandescent bulbs.
The 2 Three-way switches and the two incandescent bulbs were grounded. As for the white wires, they went directly to the incandescent bulbs, they were not connected to the first Three-way switch. This was the result.
For this environment we used the two Playwood boards that were previously joined by hinges in the bathroom environment. The power cable that was already available from said environment was also used, only in this case it is added two more lines for what is the part of the V outlet.
These two lines of the V outlet will pass through the devices. As with the other environments, the elements and boxes of the environment are placed on top of the tables, giving them the shape of the schematic.
The live, neutral and ground wires of the power supply will go through the 4x4 box that is grounded using the ground wire making a connection with the power ground, the one that grounds the 4x4 box and the one that continues. A splice is made to ground the hexagonal box of the LED spotlight and continue the ground wire to the other devices.
Splices are made to connect the live and neutral wires to the LED spotlight and so that the wires continue to the other devices as well. Later in the installation of the dimmer, it will be connected as a switch connecting the ground wire and the live wire is connected at the end of the two screws and the live wire that will continue to the rest of the fixtures in the other screw.
In the V socket connect the two special lines for said socket and connect the earth cable. Splices are made to connect the live wires to the screw for the small stripe, neutral to the screw for the longest stripe, and ground to the double outlet, and so that the wire lines continue to the single outlet. Finally, the live wires are connected to the screw of the small stripe, neutral to the screw of the longest stripe, and ground to the single socket. We order metal and plastic boxes to cut electrical pipes to size, so that the environment will be as orderly as possible.
And we proceeded to introduce the cables later, we used five-wire splices in the 4x4 box so that the red, white and yellow cable was directed to the 3 directions of the circuit. Next, we can see in the image below that we have installed the doorbell, with its push button and transformer, it is important to know that the transformer is with the correct value so that the doorbell can work correctly, the transformer works to decrease the voltage of V so that the bell can work and as always the button is in series so that a sound can be achieved as ding do.
In the second 3x4 metal box, we take red and white cables to the simple switch that turns on the incandescent lamp, then we cable the same lamp mentioned previously, we land everything properly on the switch and the hexagonal metal box.
0コメント