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How to reliably connect wires without soldering

June 19, 2018 Useful and interesting / Useful Tips 384 177 40

I think many had to connect two stranded wires to each other. And most often, people do the usual twisting of the veins among themselves. A wire connected in this way has a low strength and with little effort, the twist can unwind, and the wire breaks. If you have a soldering iron on hand, the twist is usually soldered and the strength of the connection becomes good. But what if the soldering iron is not at hand? How to make a high-quality twist and connect the wires properly?

How to reliably connect wires

Using a clerical knife or stripper, we remove about 3 centimeters of insulation from each end of the wire.

Like this:

Now you need to fluff the veins into a small panicle.

And here the main point: these brushes need to be crossed with each other so that the wires are maximally mixed together. See photo:

The intersection should be approximately in the middle of the bare zone. Next, after procrastination, we wind the right bare section onto the left.

And left to right.

In the end, you should get such a reliable twist of the wire.

Check

We fix one wire on the dynamometer and pull it after the other. It is easy to create a force of the order of 10 kg and the twisting will not unfold, which is an indicator of excellent reliability.

Well, then isolate with heat shrink or conventional electrical tape.

As a result, the wire has the same reliability almost as solid.

Use your friends! For motorists, this is definitely useful, as it has come in handy for me more than once.
I am sure that now you will definitely take this method into service and will use it for the rest of your life, if you need it of course.
Of course, with soldering, the wire will be more reliable, but as they say, what is not, is not.
And if you know a more reliable method - write it in the comments, I'm sure everyone will be interested to learn from your experience.

Watch the video

come back

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Comments (40)

#1 MX Guests June 19, 2018 17:37
5

Well, only when stripping the insulation, the knife should “plan” and not cut at right angles (this is less likely to damage current-carrying conductors) and the length of the exposed section is preferably not less than 35 mm.
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1. #2 Vitibon Guests June 30, 2018 5:55 p.m.
  2
  
  I usually remove the insulation from the "auto-conduit" first by slightly heating it with a lighter and all the wires are intact.
  
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#3 Ku Guests June 19, 2018 18:29
22

This recommendation is a model of unprofessionalism!
Do not repeat such absurdities (to say the least)!
In this way, the contact area of two wires is artificially reduced - that is, the resistance increases.
PS. What side is the mechanical strength of the joint? It is reached in other ways.
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1. #4 Dmitry Guests June 26, 2018 11:23 p.m.
  4
  
  or you watched inattentively, or you're just a sofa expert.
  this is a fairly reliable twist for lack of a soldering iron and it is much more reliable than something else
  
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  1. #5 Edward Guests June 27, 2018 5:41 p.m.
    6
    
    As practice has shown, twisting is much more reliable than any Chinese clamps. The electrical wiring in the houses in the junction boxes is twisted together. And it lives for 30-40 years. The main thing is not to twist the dissimilar wires together. That is, copper and aluminum
    
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#6 Guest Sergey Guests June 19, 2018 19:45
1

Thank. Precisely come in handy.
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#7 Vladimr Guests June 19, 2018 20:19
0

I do the same two times I wind each other and tails up and together and then do not break it
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#8 xxx Guests June 19, 2018 20:20
7

With temperature differences, moisture accumulates in such a “miracle compound”. And after that, such twists begin to melt and burn.
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#9 Guest Alexander Guests June 19, 2018 9:38 p.m.
2

If there is no soldering iron, heat the tin in a spoon and dip the wires there. It is necessary to be able to solder, but here no skill and, most importantly, quickly.
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#10 Guest Yuri Guests June 20, 2018 03:59 a.m.
5

This method is good when mechanical tensile strength is required, and for minimum electrical resistance it is better to make it as in the video up to 35 seconds, then twist as usual, then the contact area between the wires is larger
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#11 Dragonborn Guests June 20, 2018 04:28
1

Cool method. thank
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#12 Guest Victor Guests June 20, 2018 08:40
9

In the “damned scoop” this method was known to every fifth grader who attended labor lessons.
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#13 Ivan Guests June 20, 2018 08:40
2

A good article for those who have not been to the labor lessons of the USSR. Although I’m 97 years old, but thanks to that book on work, I learned this connection method. The author is well done, clearly and clearly explained and accordingly showed everything about this type of connection
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#14 Guest Alexander Guests June 20, 2018 10:00
1

I remember the method that my colleague, the commander of the communications platoon, showed me. True, he touched a connected wire, but, I think, it can also be used on stranded copper. So here. The connected wire consists of steel and copper conductors. The ends of the spliced wires are stripped 10 cm (approximately). Steel veins at both ends are bent and connected in a loop-to-loop manner (fishermen are well aware of this method). And then towards each other copper coils are wound around steel veins. Well and further isolation.
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1. #15 Guest Yuri Guests June 22, 2018 10:06
  1
  
  Well done Alexander. Perhaps this is the only connection method that provides both mechanical strength and the largest contact area. It is only necessary to provide not just a bundle of cores, but to bind a non-stretching sea knot and twist the copper cores (or part thereof) along the connection. Strong and minimally thin twist. I am a geophysicist, behind thousands of kilometers of twisted wires ...
  
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  1. #16 Guest Igor Guests June 28, 2018 11:31
    0
    
    Exactly, I saw how high-voltage wires weaved wires in the field in exactly this way,
    he himself used this method more than once when a fallen tree broke off at a country house.
    
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#17 1 Guests June 20, 2018 11:34
3

Twist and solder is not fate? Nothing to invent a bike.
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1. #18 Guest Sergey Guests June 20, 2018 18:08
  0
  
  So many humanities did not hold the instrument in their hands, for their whole life. They will remove the insulation with their teeth. Once I saw a twist of wires together with insulation. ONE radio tape recorders are powered directly from the network 220 volts and wonder what it is that she smoked))
  
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#19 Shah Guests June 20, 2018 2:26 p.m.
4

Before twisting, it is necessary to peel off the varnish covering the wires of the wire, so the contact will be better.
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1. #20 Guest Sergey Guests June 20, 2018 18:02
  2
  
  There may not be any varnish, but the oxide film on the veins must be scrubbed)) with a knife or emery cloth on a paper or cloth basis
  
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2. #21 Guest Valery Guests June 20, 2018 18:05
  3
  
  Luck, are you serious?
  
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3. #22 Guest Sergey Guests June 20, 2018 9:09 p.m.
  3
  
  There is no varnish on these wires.
  
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4. #23 Guest Sergey Guests June 25, 2018 04:54
  3
  
  Shah, varnish is only on littsendrata (you know what it is?) And on a single winding wire, used for winding various coils and windings.
  
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#24 Konbez Guests June 20, 2018 16:03
0

This is a special case of oncoming twisting. In the Electrician is not allowed, but in a weak current it is possible.Only IMHO, before twisting, it is necessary to twist each end, and then twist a pigtail or spiral, as in the case of a mono-core.
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#25 Guest Leonid Guests June 20, 2018 19:59
2

Friends, to the phrase "Now you need to fluff the veins in a small panicle" should be added "and cleaned to a shine with a knife or sandpaper." Although this steps are so almost obvious ...
A tip on cross-twisting is useful. Thank.
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#26 Guest Andrey Guests June 21, 2018 07:23
1

In the case of a car, it is better not to solder. As practice shows, the wires break off just at the solder boundary. Quick couplings give ephemeral contact. A worthy alternative is the crimp sleeve.
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#27 Guest Anatoly Guests June 21, 2018 11:47
0

The stripping of the wire from both ends should be 5-7cm. Twisting the wires in different directions. Mandatory crimping with pliers. The quality of the connection will show only the current passing through the connection. In this case, a wire with a cross-section of 2.5mi. If the current is 25 amperes, then the connection is high-quality.
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1. #28 yf-yf Guests June 22, 2018 00:51
  0
  
  2.5 mi? all clear
  
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#29 Guest Alexander Guests June 21, 2018 18:04
1

Back in 1973, I started using it (only I divide each wire into three branches), I connect it horizontally, it turns out like a 3-horn plug, I bring both wires into a tight one, after one turn of each bundle, I push it apart by half a centimeter, and continue twisting into different sides of the ligament. As the coils approach the isolation, I make a slight stretch until the whole bunch is wound. The section is obtained in the level with the wire. You isolate and there is no bump. And now he has put the shrink cambric, it turns out, like the wiring itself.
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#30 Guest Michael Guests June 22, 2018 06:54
4

Something I do not understand, why such difficulties? If the need for a connection arose on the road, then there is no time for super reliability. The task is to quickly twist and get to the place. Well, on arrival, it’s already possible to do for centuries, at least solder, at least set the clamps, at least crimp. A lot of ways.
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1. #31 Guest Sergey Guests June 25, 2018 04:50
  3
  
  There is nothing more permanent than temporary, the same twist. For this reason, we must immediately do it qualitatively.
  
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#32 Dmitry Guests June 26, 2018 23:29
0

For lack of a soldering iron - this is the most reliable way of twisting with a high contact area, but I do a little different twisting the tails in the counter. Who says that this is unprofessional most likely the sofa expert himself. I’m talking like an electrician with 5 years of experience under the supervision of an electrician with 40 years of experience of 5 categories, believe me, it would be wrong, he would correct me)
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1. #33 Guest Sergey Guests June 27, 2018 18:38
  0
  
  The very absence of a soldering iron (electric at 220 volts or 12 volts or gas based on a gas burner) is already an indicator of "high" qualification)).
  
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#34 Guest Vasily Guests 28 june 2018 02:09
1

Crimping
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#35 Zds Guests June 28, 2018 13:25
0

By modern standards, twisted wires are not allowed. Can be crimped with a sleeve
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#36 Guest Victor Guests July 3, 2018 9:00 p.m.
0

This method in Russia is called "American twisting" and in America, "Russian twisting" is such a paradox
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#37 The guest Guests July 18, 2018 8:17 p.m.
0

Pf-f ... and if there is a whole vein? : D
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1. #38 Guest Michael Guests July 30, 2018 11:11
  0
  
  And the vein that is in the photo - why is it not "whole"? Torn somewhere?
  
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#39 Guest Eugene Guests August 6, 2018 18:54
2

You can immediately see from the video that the person is not an electrician. I have been working as an electrician for over 20 years. They don’t remove the insulation this way. The knife is planed at an angle and in your way individual veins can be cut and subsequently broken when twisted. And this connection method is generally needed for tensile strength, and in electricity you need a tight connection with minimal resistance. The main thing is to clean it from varnish and twist it with a pigtail 30- 40 mm pliers and you can still bend half the twist
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1. #40 poliocs Guests January 6, 2019 5:09 p.m.
  1
  
  Very interesting!! Email A fitter with 20 years of experience found installation wires coated with varnish. I wonder where?
  
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