The pin tip is made of electrolytic copper and is used for fixing on the ends of the wires. Mounting is performed by crimping using a specialized tool.
Description
NShVI provides the creation of a universal connection at the ends of electrical cables, due to which the integrity of the wiring is maintained when using screw clamps, and improves contact at the connection point, forming greater reliability. The cables used must be made of copper and have a cross section within 35 mm 2 .
The tip of the pin sleeve is based on a material that has undergone galvanizing treatment. It has many advantages, the main of which is a significant time saving in the process of connecting to electrical devices, connecting and further tinning of copper wiring.
Design
Products are divided into two types: double and single. They are convenient to use in that it takes several seconds to install them on the cable. This is ensured by the fixing method, which is quick and practical. When using such a technique, there is no need for subsequent maintenance of the obtained compound, constant monitoring and periodic inspection. The tip of the pin NShVI has a primitive design and does not require special skills for use. It is made in the form of a copper tube, one side of which is flared to simplify cable entry into its cavity. Also on it is a polyamide cuff acting as an insulating element.
Application
When connecting stranded copper wiring with screw clamps, there is a chance of them being crushed during tightening. In order to prevent this, a pin tip is used. Connection without special products can lead to crushing and breaking of cables during tightening, which results in poor contact quality, the possibility of burning, sparking and other undesirable consequences. The main purpose of this method is to prevent damage to the wire strands.
Such difficulties do not arise due to obtaining high-quality and reliable contact when crimping the product plane and wiring, in which the mechanical load of the connection falls on the sleeve, and not on the conductors. There are elements with different sizes of sleeves, each of which is suitable for wires with different sections. Color marking is used to more accurately determine the diameter. So you can determine the purpose of a product. The connection itself is not difficult, the main thing is to carefully prepare all the components.
How to fix the pin tip
First you need to strip the part of the wire designed to accommodate the sleeve. It is necessary to be careful when working, the task can be simplified by using a special tool - a stripper. It is used to remove insulation and looks similar to ordinary pliers. Using this device reduces the time spent on work, and also simplifies the process itself. It should be noted that the cable is stripped exactly to the length of the sleeve part of the product. After removing the insulation, it remains only to insert the wire into the insulated pin tip, the choice of which is carried out in accordance with the cable diameter.
Then the connected elements must be placed in the press tongs, the groove of which must also be pre-selected. The insulated side of the product should abut against the tool body. The connection is considered complete after pressing the handle of the device. Wiring can now be used to connect to electrical devices.
Single and double products
The use of NShVI not only simplifies the preparation of cables, but also provides a robust design that will remain high-quality and reliable throughout the entire period of operation in full compliance with all technological requirements and conditions.
As noted earlier, in addition to single, double products are also used, which are necessary for the simultaneous fixation of two cables. They are optimally suited for various situations, in particular for connecting double wiring in one place of an electronic device. The fixing method is similar to the process of crimping single-type products.
The tip of the NShVI-2 pin has a plastic wide cuff designed for two wires, while the NShVI-1 is equipped with a narrower cuff used for one wire. Product selection in accordance with the cross-section of the wiring should be carried out in both cases. The main condition is to ensure the most tight connection of the two elements.
Scope of use
The terminal pin insulated sleeve has gained sufficient distribution when connecting sockets and circuit breakers, since such devices use, as a rule, a copper multicore cable, which is also necessary for wiring. Moreover, in some types of outlets, its use is not always rational due to the presence of screw clamps in them. In the process of connecting to the switch and tightening the fasteners in the terminal strip, the quality of the connection and the reliability of the contacts are reduced.
Before the lugs were created, the problem was eliminated by soldering the end elements of the wiring until an inextricable structure was obtained. But given the fact that the wiring entails the installation of many switches and sockets, it took too much time to solder.
The tip of the pin sleeve insulated NShVI became the optimal way out of this situation. Its fixation on the wire and connection to the equipment, subject to the competent selection of products, is carried out in the shortest possible time.
Dimensions
Manufacturers indicate in the accompanying instructions the required ratio of the dimensions of the cross-section of the sleeves and the wiring, which must be observed under any conditions. Only in this case it is possible to ensure reliable operation during the entire specified period and prevent difficulties during installation. It is worth noting that the tool is of particular importance, which not only increases the quality of crimping, but also simplifies all the activities. Since the guarantee of the quality of the connection is compliance with the rules of the process.
Wiring diagram
The scheme should include a method for powering the lighting lines of cables and all sockets available in the apartment. A common mistake is to use one line for all elements. This was rational at a time when high-power devices were practically not used in everyday life, and to reduce costs. Power outlets were carried out from the distribution boxes, which were connected to one cable.
Today, in every house there is a different household appliance that consumes much more energy, so the wiring diagram used earlier is no longer suitable, as it is unreliable and does not provide protection against excessive loads on the line. In particular, the circuit breaker, from which the whole house or several rooms are powered, is not able to prevent overloading on separate sections of cables, since it is selected in accordance with the total load of lighting devices and outlets brought to it.
Of course, several outlets can be powered by intermediate boxes, if they carry a low load. It is worth paying attention to the fact that when using such boxes, the weakest point of the entire system is the contact branches located in them.
What you need to know
If in the switchgear there is no high-quality connection of all elements, there will be a chance of their damage during the passage of current. Ensuring a reliable connection is possible by soldering or using special terminal blocks. It also turns out to be useful tip insulated pin NShVI.
Often during the installation of intermediate boxes they are hidden in special recesses, covered with a layer of plaster and decorative coating. Of course, visually the room only benefits from this, but when a malfunction occurs in the system or when it is necessary to check the connections, it becomes difficult to find the installation site. In order to simplify the task, it is recommended to mark the location of the boxes.