Twisting wires: how to properly twist an electrical wire

To ensure connections and branches during electrical operations, wire twisting is used. Contacts with this method of switching must be reliable. Carrying out work on the installation of wiring of all types - in everyday life or in industry - is subject to a collection of requirements and rules on how to properly twist wires. They say that the appearance of additional resistance is impossible at the points of contact of the veins. Neglecting this rule will lead to heating of the contact point.

The connection is carried out in accordance with electrical safety standards by similar methods:

• Twists.
• Welding.
• Soldering.
• Screw clamp.
• Terminal blocks and blocks.
• Self-clamping express terminals.
• PPE caps.

The twisting of wires implies the advantages and disadvantages of the method. There is a PUE regulation to prohibit such an operation.. But in spite of it, twisting is often used.

Twisting of contacts occurs during rough assembly. This is explained by the need to establish the fact of the correct operation of the already mounted connections. They check the integrity of the electrical lines, introduce the necessary amendments, install additional devices:

• switching structures;
• simple and special sockets;
• equipment for conversion, voltage stabilization;
• rectifiers;
• metering devices.

Upon completion of the preliminary work, the fully assembled circuit is tested for functionality. In case of incorrect operation of the equipment, lack of electricity find out the cause and site of damage. You have to change faulty nodes, twist the wires correctly.

Correct twisting of wires makes it possible to quickly resume power supply. According to the situation, they decide what to do with the connection elements:

• The finished combination remains.
• Improving.
• Changes to a new one, with a different way of connecting the veins.
• An elementary set of tools for wire manipulation. It is not difficult to perform work in the field in the absence of powerful consumers.

The simplest connection is to maintain safe contact for a long time while following all the necessary instructions for twisting electrical wires.

Therefore, it is worthwhile to provide for the maximum number of connected devices, decide how to properly twist wires, calculate a suitable cable cross-section, further development of the power system in the event of an increase in the number consumers. Then the mounted solder will serve reliably for more than one year.

The twisting of cable strands to connect pieces of wiring to each other appeared immediately after the opening of electricity. At first, this method suited everyone. But time does not stand still, new electrical equipment appeared, the need for development increased energy networks with increased power and current strength. The question arose of how to properly twist the wires in the complicated realities. Twisting ceased to guarantee uninterrupted operation in such conditions. But at the household level, it is widely used and meets the requirements of networks with low load.

Pros and cons of twists

It is not recommended to connect wires with a plexus in taps with high consumer power: electric stoves, heating and heating devices, computer equipment.

The advantages of a braided connection are:

• the speed of twisting;
• long term of use with high-quality installation;
• does not require the use of complex tools;
• ideally serves signaling networks where there is no powerful electrical equipment;
• if necessary, the contact point can be additionally extended or soldered;
• is inexpensive;
• the tap contains two to four taps at the same time;
• the connection is repeated in case of error or careless execution.

There are also many disadvantages:

• high quality insulation;
• not intended for use in power networks;
• inconvenient way to assemble wires;
• when heated, a fire occurs;
• landing stresses associated with overloads of feeders.

Twisting wires with different cores

Such combinations are strictly prohibited for use. Copper and aluminum wires must not be combined! When touched, these metals enter into a chemical oxidation reaction, galvanized. Contact connection is destroyed. With an increase in the load in the chain, the erosion of the adhesion is accelerated. Connection in such conditions leads to sad results:

• heating, sparking and, as a result, fire;
• weakening of contact at the soldering point;
• the size of the contact space is reduced;
• power surges in the chain section break the thermal equilibrium and destroy the twist.

Oxide formation

The influence of air on the conductors oxidizes the junction. For copper and aluminum conductors, this corrosive environment will shorten the service life. Using expensive metals like silver or gold in conventional schemes, it is not economically feasible. The problem is solved by insulating the twists with a quality dielectric material with the correct methods of execution. Such measures prolong the trouble-free operation of the soldering point and the entire circuit.

Resistance at the junction of the wires

The result of poor contact between the conductors of the cable is an increase in resistance in this place. Heating appears in the transition space and the destruction of the entire connecting circuit. A tight grip on the wires will reduce these risks.

Varieties of connections in wiring diagrams

Twists are classified according to the material of manufacture of the cores participating in the operation, their types, and the method of twisting. Cross-sectional areas, permissible load must be identical.

Copper conductors allow multiple, up to ten times, twisting without compromising strength and contact. They easily also suitable for triple - quadruple connections. The aluminum cable is not as resistant to mechanical stress. One or two attempts at braiding - and he breaks off.

The conductors of the cable are single and multi-wire. The twisting method must be found with this feature in mind.

For arranging temporary or mobile wiring, choose a more reusable twisted soft cord. The stationary and final wiring diagram is made up of a monolithic dwelling.

Connecting cables with different wires is allowed. The reference books contain data for all types. Following the numbers, materials are selected for mounting from wires with different combinations lived. It is necessary to take into account the cross section at the current rating. The methods of weaving such endings do not differ.

The wire connection will last for more than one year if the exact manufacturing procedure is followed.

• The sections of the veins are carefully cleaned of insulation by fifty millimeters with a knife or a professional tool.
• The bare ends are wiped with thinner or gasoline to remove dirt.
• With a file or sandpaper, remove the varnish from the wire until it shines.
• A heat-shrinkable tube is put on one core.
• The prepared extremities are crossed and wound around each other with pliers for at least five turns.

We do this with the following veins.

TU cambric is displaced to the junction and heats up to a monolithic overlay on the twisted area. In the absence of a tube, an insulating tape is used. It is applied in three to four layers in a full overlap.

In the absence of special devices for splicing cables, we use twisting. The main requirement is the maximum contact area of ​​the conductors at the point of alignment. After stripping, we twist each wire at the shell by one centimeter. We fluff the bare ends along the hairs. Manipulation is performed with each contact.

Serial connection is performed by combining colliding beams one into the other, so that the wires of the veins are mixed with each other. The twist is performed from two sides in opposite directions.

When editing in parallel, the manipulations are close. The wires fit like a house and the fluffy corollas are braided into a braid. The connections are sealed with pliers and insulated.

The easiest method soldering of solid cores is called parallel. The wires are brought together at an arbitrary angle, the stripped sections are twisted from the point of adhesion.

To build up by a simple sequential plexus method, the bare wires are bent, shifted towards the intersection and twisted with a screw in opposite directions.

When one wire before connection is bent and curled around the second in 2 places (at the insulation and in area of ​​its bent edge), the cable is spliced ​​in a parallel way with gutter.

Similar consistent twisting is done with braiding of both cores. Two twisted spots are formed at the base of the insulating layer.

A tie-assisted connection is required when working with rigid wire or heavy gauge cable. This technique also has parallel and serial versions. A core is preliminarily prepared from a monolithic wire of a thinner cross-section, soft and from a material similar to the main cable. The stripped ends are bent at right angles, brought to each other. The prepared bandage vein is twisted around them in even turns.

The connection of an additional wire and branch for each option is carried out in a parallel way. Branching with a bandage differs in thatthat only the appendix is ​​twisted.

With the intensive development of electronic technology, the load on electrical networks increases. Requirements for the reliability of the splices of the current supply branches are also growing. The twisting method is gradually becoming a thing of the past. This is clearly noticeable in production areas, where installation is carried out in progressive ways, and obsolete splices are replaced.