2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54
- Twisting and soldering two wires
- Connecting aluminum and copper wires using terminals
- Connecting cables with screws and washers
- Branch with U-733 clamp
- Daisy chain connection of multiple outlets
- Self-clamping terminal blocks Wago
- Welding two cable cores
More recently, twisting was the main method of connecting wires in household wiring, and often in industrial premises. In modern electrical installation rules, such a method is not even mentioned, although in practice it is still being applied. In detail, about all possible options for connecting stranded wires.
Twisting and soldering two wires
A very reliable contact is provided by soldering, for preparation for which pre-stranding is perfectly appropriate and even necessary for a larger contact area (given that the electrical conductivity of the solder is lower than that of the materials being brazed) and mechanical strength.
Soldering requires a 60-100 watt soldering iron. First, you need to remove the insulation from the wires (by 4–5 cm), clean them with fine sandpaper and irradiate them. cover with a thin layer of solder.
- For copper wires, you can use ordinary rosin (solid or in the form of a solution) or special pasty or liquid fluxes. Rosin and neutral no-clean fluxes do not need to be removed afterwards. do not cause corrosion.
- It is undesirable to use soldering acid and other active fluxes - their residues can cause corrosion of wires and even a short circuit.
- There are soldering materials for aluminum, but their use is not recommended.
Tinned wires are twisted, then carefully soldered. The braze must cool naturally, without forced cooling, which can lead to cracks in the joint. It is convenient to insulate the finished solder with a heat-shrinkable tube of a suitable size, which, when heated, tightly surrounds the joint. It is the most reliable way to connect electrical wires and cables, both copper and aluminum.
Another option is ordinary electrical tape, preferably at least 3 layers.
Connecting insulating clamps (PPE) can be considered a modern version of the old twisted wires. It is a plastic case with a conical anodized spring inside. The wires to be connected are stripped to a length of 10-15 mm, collected in a bundle and PPE is wound on them - clockwise, until it stops. The total area of the connection, depending on the standard size, is from 2.5 to 20 mm 2. The connection quality is quite high, but somewhat less than that of the screw terminal blocks.
Connecting aluminum and copper wires using terminals
The most common terminals are screw terminals and are often used in junction boxes. They are produced for both low and very high currents. When using aluminum conductors, care must be taken when tightening the screws because it is soft (and sometimes brittle) and easily damaged.
Connecting cables with screws and washers
This is a somewhat outdated option, suitable in the absence of screw terminal blocks of a suitable standard size, provides the same quality, can be used to connect an aluminum wire to a copper one.
Branch with U-733 clamp
This is actually a version of the screw terminal block, it allows you to make branches from the trunk without cutting it.
Daisy chain connection of multiple outlets
In this version, the sockets can actually be used as screw terminal blocks, but for greater reliability of the connection of the wires, they must be soldered.
Self-clamping terminal blocks Wago
Self-clamping terminal blocks allow you to connect electrical wires with a cross section of up to 2.5 square millimeters, the permissible current can be up to 24 A. This is a very fast and technologically advanced connection method. The stripping is carried out to a length of only 10–12 mm, no twisting, no insulation, or even tightening of screws is required. The wires are simply inserted into the terminal block. It will not be possible to connect only flexible stranded wires in this way.
Another drawback - due to the smaller contact area, this connection is still somewhat less reliable than a screw terminal or, especially, soldering or welding.
Welding two cable cores
This is the most reliable connection method, it ensures perfect contact and very long uptime. Electric wires are twisted to a length of at least 50 mm, copper wires are welded with a special carbon electrode with a copper coating. It is best to use an inverter welder, although other options are possible. When welding wires, as in any other welding work, strict adherence to safety measures is necessary.
Tips for laying tiles on foam blocks, how you can glue tiles on a gas block. Do I need to priming, waterproofing or plastering foam blocks under ceramic tiles in the bathroom
What are the ways to connect stranded and single-core copper wire with photo and video. Types of wiring twists of stranded wires. Which is better: terminal blocks, twisting, soldering or using welding when connecting wires
Choice of 8 most reliable wire connection methods. Assessment of the reliability of the connection of electrical wires in the junction box with wago terminals and methods of twisting wires. Reviews are visible and photos
Installation Of Partitions From Expanded Clay Blocks, Methods Of Quick Laying Of Interior Walls With Expanded Clay Blocks
Arrangement of partitions made of expanded clay concrete blocks in an apartment or house. Properties of material based on expanded clay and types of blocks for masonry walls. Installation of an interior wall with expanded clay blocks is relatively simple. A detailed video on laying expanded clay blocks with your own hands
Do-it-yourself Electrical Wiring In The Apartment Video. Installation Of Electrical Wiring In The Apartment Video
Do-it-yourself electrical wiring in an apartment It is believed that, on average, a modern apartment consumes about 8 kilowatts of power. So a 40 amp circuit breaker should be used. This is enough to protect against overload and short-circuit current. Residual current devices (the so-called RCD) are needed to protect people from electrical injuries, as well as during power surges. Most often, 2 RCDs are installed, one with a leakage current of 10 milliamps (for a bathroom) and the second