Connect the wires using cartridges correctly and consider the common mistakes

As we all know, there are several options for connecting wires in the junction box, which allowed RB: It soldering, welding, connection squeezing, as well as pressure testing. Each of these options has its pros and cons, but in this article we'll discuss in detail exactly on pressure testing and learn about all the pros and cons of this compound.

What is a shell and how to use it

Before proceeding to the analysis proper crimping technology, let's find out what the liner and consider the principle of operation.

The sleeve - a hollow tube made of metal (aluminum, copper, and the combined performance).

Inside of this product is placed in advance the bare wire ends (the twist they can not), then a special tool is performed in the liner deformation. And due to this it creates quality electrical and mechanical connection conductors.

It is important to know that the crimp is made at least 2 or 3 points, and with each new crimping pliers are rotated 90 degrees. After isolation formed compound made.

What are the pros and cons of crimping

Let's look at the pros

The main advantage of this method of wiring considered high mechanical strength and reliability of the newly formed contact.

Another advantage is the possibility of connecting aluminum and copper (when using specialized liners).

And what disadvantages in this connection

There is only one minus. The resulting compound is a non-separable, so if you accidentally make a mistake, then remake it will not work. Here we must make a new connection only.

When should I apply liner

1. If through connection will be a significant current flow (e.g., hob or socket unit).

2. If the mating conductors have a great connection, or want to connect once lived a lot.

3. If another affordable way unacceptable in a particular situation.

the necessary equipment

So, for the successful implementation of this work to us you will need: the right diameter of the sleeve and metal, electrical tape or heat shrink tubing and stationery knife.

Making the correct crimping

Everything is ready now take with you our veins and we clean them so that deburred area is completely housed inside the sleeve. Then insert the stripped wires into the sleeve with the aid of special press jaws produce crimp sleeve in three locations, thus changing the angle at each point of crimping 180 degrees.

Then isolating the resulting compound by heat-shrinkable tubing, or a conventional electrical tape. All our connection with you is ready.

Important. If the room connected wires into the sleeve left a lot of space, it is necessary to fill the cut pieces of the same section. compressing the sleeve can not be half-empty, as this does not form a reliable contact, and the compound may warm up, which can lead to disastrous consequences.

As it is impossible to do pressure testing

So, we have examined the correct pressure testing, and now let's learn about the most common mistakes that prevent them from themselves.

1. Cutting. Looking at the liner, it can be mistaken conclusion that they are very long and nothing terrible will, if they are cut in half and used for other connections. This statement is completely wrong, because this length is specially designed by the manufacturer and, cutting it, you reduce the integral strength of the tube. When crimping, it can break corny, but not tight pinch wires.

2. Wrong choice of the diameter. A situation may arise that the remaining sleeves were either too small diameter or vice versa large. In this case, some "master" eroding veins or fold it like an accordion. It absolutely can not do. If the wires are not placed in the pocket, you need to buy a sleeve of larger diameter. What if you have large sleeves and on the contrary there is a lot of free space above.

3. Crimping with a pair of pliers. Also, some people are trying to perform a pressure test is not a specialized tool, such as pliers. It is also absolutely impossible to do, because you are using a pair of pliers or deformiruete core and a sleeve, or insufficient will clamp them.

As you can see, this type of connection wires are not only one of the most reliable, but also extremely simple. If the article was useful to you, you will appreciate its Like and repost.

Thank you for your valuable attention!