Wiktor Wise
There are several methods for locking two electrical cables together. One simple method is to use a piece of non-stranded electrical wire to bind the two cords together. Alternatively, you can use a splice kit, which is a more permanent solution but requires careful adherence to instructions to avoid creating a dangerous situation. Another option is to install an accessible junction box with a cover plate, which can be a straightforward fix if done correctly. It is important to note that splicing cables and burying them in a wall is not legal in some places, and a box must be cut in to house the spliced wires.
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What You'll Learn
Using a piece of non-stranded electrical wire
Before attempting to connect two electrical cables, it is important to ensure that the power is turned off to avoid the risk of electrical shock. You can use a non-contact voltage tester or multimeter to check this.
To connect two electrical cables together using a piece of non-stranded electrical wire, you can follow these steps:
- Prepare the wires: Cut the non-stranded wire to an appropriate length, leaving enough slack to work with. Strip about 1 inch (2.5 cm) of insulation from both ends of the non-stranded wire, as well as the ends of the two cables you want to connect.
- Twist the wires: Take one of the stripped ends of the non-stranded wire and twist it together with the exposed end of one of the cables. Make sure the connection is solid and secure, with no individual strands sticking out. Repeat this step with the other stripped end of the non-stranded wire and the remaining cable.
- Apply solder: Soldering will create a secure and long-lasting connection. Use a soldering iron to melt a small amount of solder (a low-temperature metal alloy) onto the twisted connections. This will bind the wires together and ensure they don't come undone.
- Insulate the connection: To ensure safety and protect the connection, you can use electrical tape or heat-shrink tubing. Wrap electrical tape tightly around the soldered connections several times, covering all exposed wire. Alternatively, slide a piece of heat-shrink tubing over the wires before soldering. After soldering, heat the tubing with a heat gun, torch, or lighter to shrink it around the connection.
Always remember to work in a well-ventilated area when soldering, as the fumes can be harmful. Additionally, make sure to follow basic electrical safety guidelines and consider seeking professional advice if you are unsure about the process.
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J box with a cover plate
Junction boxes, also known as J-boxes, are used to connect two or more spliced electrical cables. They are available in metal and plastic. Metal boxes are used for metal conduit or armoured installations and offer excellent durability and grounding capabilities. Plastic boxes, on the other hand, are more commonly used with non-metallic sheathed cables and are lightweight and corrosion-resistant.
When installing a junction box, it is important to follow electrical safety codes and take necessary precautions. Before starting, turn off the power to the relevant circuit at the main breaker panel and wear insulated gloves and safety glasses. Choose a location that is easily accessible and complies with local electrical codes. The box should be mounted securely to a stud or joist, with its face flush to the wall surface.
If you are using a metal box, remove the knockouts (metal discs) and install a cable clamp for each cable. For plastic boxes, internal cable clamps are usually included, but if not, install a locknut-type clamp for each cable. Secure the cables by tightening the screws on the clamps, being careful not to overtighten and damage the cables. Plastic boxes typically have self-tightening clamps.
Once the cables are secured, join the wires together with approved wire connectors, following the manufacturer's instructions. Start by joining the ground wires (bare copper or green insulated), then the neutral wires (white), and finally the hot wires (black). After all the wires are connected, carefully fold them into the box and install the cover, securing it with screws.
It is important to note that overfilling a junction box with too many wires can lead to overheating, short-circuiting, and potential fire hazards. Always consult the National Electrical Code or local code authorities to ensure your installation is safe and complies with regulations.
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Splice kits
If you're looking to lock two electrical cables together, splice kits are a great option. However, it's important to note that you should be experienced or have some knowledge of electrical work before attempting this. While a splice kit in the wall is legal, it's crucial to follow the instructions precisely to avoid creating a dangerous situation.
One popular splice kit option is the Tyco splice kit, which was UL-approved. However, Tyco has stopped production, and stocks are limited. These kits include instructions for proper use, such as stapling the cable on both sides within a certain distance to avoid any pull on the splice. It's also recommended to use a box or two, depending on the amount of cable slack available.
Another option is the Apogee Instruments cable splice kit, which includes solder sleeves to make two splices of their three-conductor cable, including the drain wire. This kit also comes with polyolefin heat shrink tubing with internal adhesive to waterproof the exterior. Apogee's testing indicates that the cable splice joints made with this heat shrink tubing are nearly as waterproof as the original cable.
Additionally, 3M offers a range of cold shrink splice kits, such as the QS-III Series 5545A, which is longitudinally corrugated and rated for 46kV and 4/0-1000 kcmil (120-500 mm²).
Finally, Beck Electric Supply offers custom length cord sets that utilise cable splices for lengthening or repairing damaged cord sets. They offer both cold splice and heat-shrinkable splice styles to meet various needs.
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Running new wires
If you're looking to join two electrical cables together, one option is to run new wires. This can be done by setting a box on each set of wires and running a small jumper in between the boxes. It is recommended to use two boxes if you need some length, with new cable in between.
To ensure safety and compliance, it is important to follow local electrical codes. In some cases, an accessible box with a metal plate may be required. It is also important to note that splices should not be buried in walls, as this is not code-compliant.
If you are not experienced in electrical work, it is always best to consult a qualified electrician or someone with knowledge in this area. Working with electricity can be dangerous if the proper precautions are not taken.
Additionally, when joining wires, it is important to consider the type of wire you are using. For example, older Romex outer sheathing was white, but in the early 2000s, it started to change to colour-coded cables. Ensuring you have the correct wire type and size is crucial for a safe and effective installation.
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Setting boxes and running a jumper
To set up this connection, first, determine the number of wires involved. If there are two wires, this is a simple two-wire connection. If there is a ground wire present, this will be an additional hot wire, resulting in a three-wire configuration.
Next, select an appropriate splice kit or junction box. It is crucial to follow the manufacturer's instructions precisely when using a splice kit to avoid creating a hazardous situation. An alternative is to use an accessible junction box with a cover plate, ensuring it complies with legal and safety standards.
When joining the wires, it is essential to turn off the power to the circuit or device. This prevents any electrical hazards or short circuits. Additionally, be cautious of electrostatic discharge (ESD) when working with electronic devices or inside a computer.
Finally, connect the wires to the junction box or splice kit, following the manufacturer's instructions or relevant electrical guidelines. If using a junction box, you may need to run new wires between the boxes to ensure a secure connection. Always consult a professional or someone with electrical knowledge if you are unsure about the process or have no prior experience in electrical work.
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Frequently asked questions
There are several ways to lock two electrical cables together, including:
- Using a splice kit in the wall, following the instructions carefully.
- Using an accessible junction box with a cover plate.
- Using a piece of non-stranded electrical wire to wrap around the two cords.
Splice kits are safe if used correctly and according to the instructions. It is critical to follow the instructions precisely, or you could create a dangerous situation.
You can buy splice kits online, although stocks are limited since Tyco stopped production a few years ago. You may be able to find them on eBay, but exercise caution to ensure the product is authentic.
An alternative to using a splice kit is to use an accessible junction box with a cover plate. This method is straightforward and cosmetically better than using a splice kit.
Take a piece of non-stranded electrical wire, about 20 inches long and either 12 or 14 gauge. Wrap the wire around one cord at the base of the socket, then around the other cord, and back. When not in use, leave the wire wrapped around one of the cords for future use.
