Tip Sleeve Insulated Bushing

The tip of the pin is made of electrolytic copper and is used for fixing wires at the ends. Fastening is made by a crimping method with the use of a specialized tool.

Description

NSHVI provides the creation of a universal connection at the ends of the electrical cables, thereby preserving the integrity of the wiring when using screw clamps, and improves the contact at the junction point, forming greater reliability. The cables used should be made of copper and have a cross-section of 35 mm ² .

The tip of the whip sleeve is based on material that has undergone galvanic tinning. It has many advantages, the main of which is a significant time saving in the process of connection to electrical devices, connection and further maintenance of copper wiring.

Design performance

Products are divided into two types: double and single. They are convenient when used in that it takes a few seconds to install them on the cable. This is provided by a fixing method that is fast and practical. When using this technique, there is no need for subsequent maintenance of the obtained compound, constant monitoring and periodic inspection. The tip of the pin-type NSWR 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 expanded to simplify the entry of the cable into its cavity. Also on it there is a polyamide cuff serving as an insulating element.

Application

When connecting stranded copper wires with screw terminals, there is a possibility of their being squashed during the tightening process. In order to prevent this, a pinhead is used. Connection without special products can lead to the squeezing and breaking of the cables during tightening, which is why the quality of contact deteriorates, there is a possibility of burning, sparking and other undesirable consequences. The main purpose of this method is to prevent damage to the wires of the wire.

Such complications do not arise due to the receipt of a qualitative and reliable contact when the product plane and the wiring are pressed, in which the mechanical loading of the connection occurs on the sleeve, and not on the cores. There are elements with different sizes of sleeves, each of which is suitable for wires with different sections. The color marking is used to more accurately determine the diameter. So you can determine the purpose of this or that product. The connection itself does not cause complications, the main thing is to carefully prepare all the components.

How to fix the tip with a whip

First you need to clean the part of the wire, designed to accommodate the sleeve. It is necessary to show accuracy at work, the task can be simplified using a special tool - a stripper. It is used to remove insulation and outwardly resembles conventional pliers. With this device, the time taken for work is reduced, and the process itself is simplified. It is worth noting that the cable is peeled exactly on the length of the sleeve part of the product. After stripping the insulation, it is only necessary to insert the wire into the tip of the insulated pin, which is selected in accordance with the cable diameter.

Then the connected elements must be placed in a press pliers, the groove of which must also be pre-selected. The insulated side of the product must rest on the tool body. The connection is considered completed after you press the handle of the device. Now the wiring can be used to connect to electrical devices.

Single and double products

The application of NSHV not only simplifies the preparation of cables, but also provides a robust design that will remain quality and reliable throughout the entire operation period, in full compliance with all technological requirements and conditions.

As it was mentioned earlier, in addition to single ones, double products are used, which are necessary for simultaneous fixation of two cables. They are optimally suited for various situations, in particular for connecting double wiring in one place of the electronic device. The fixation method is similar to the one-piece crimping process.

The tip of the pin-type NSHV-2 has a plastic wide cuff designed for two wires, while the NSHV-1 is equipped with a narrower cuff used for one wire. The choice of the product in accordance with the wiring cross-section must be carried out in both cases. The main condition is to ensure the most dense connection of the two elements.

Scope of use

The tip of the pin-type insulated bushing has become quite common with the connection of sockets and circuit breakers, since in such devices a copper multicore cable is usually used, which is also necessary for wiring. In some types of sockets, its use is not always rational due to the presence of screw fasteners. During connection to the switch and tightening with fasteners in the terminal block, the quality of the connection and the reliability of the contacts are reduced.

Before the tips were created, the problem was eliminated by soldering the end elements of the wiring until an inseparable structure was obtained. But given that the wiring of the wiring entails the installation of many switches and sockets, the soldering took too much time.

The tip of the whip sleeve insulated was the best way out of this situation. Its fixation on the wire and connection to the equipment provided that the competent selection of products is made in the shortest possible time.

Dimensions

Manufacturers specify in the accompanying instruction 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 whole established period and to prevent difficulties in the installation process. It should be noted that a special tool is of great importance, which not only increases the quality of crimping, but also simplifies all the actions performed. As a guarantee of quality of connection is observance of rules of technological process.

Wiring plan

The scheme should include a method of supplying the lighting lines of cables and all the outlets that are available in the apartment. A common mistake is the use of one line for all elements. It was rational at the time when high-power devices were not used in everyday life, and to reduce costs. The sockets were powered from the distribution boxes, which were connected to the same cable.

Today in every home there are various household appliances that consume much more energy, so the wiring diagram used earlier is no longer suitable, because it is unreliable and does not provide protection from excessive loads on the line. In particular, the switch from which the entire house or several rooms are fed does not prevent overloading in separate sections of the cables, since it is selected in accordance with the total load of the lighting devices and sockets that are supplied to it.

Of course, several outlets can be powered by intermediate boxes, if they carry a low load. It should be noted that when using such boxes, the weakest points of the entire system are the contact branches located in them.

What you need to know

If there is no qualitative connection of all the elements in the switchgears, there is a possibility of their damage during the passage of the current. Ensuring a reliable connection is possible by soldering or using special terminals. It also proves useful to use the tip of a pin-insulated NSWR.

Often during the installation of intermediate boxes they are hidden in special cavities, covered with a layer of plaster and decorative coating. Of course, visually the room from this only wins, but if there is a malfunction in the system or the need to check the connections, it is difficult to find the place of installation. In order to simplify the task, it is recommended to mark the location of the boxes.