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It so happens that it is necessary to connect several segments of a certain type of wire. It's not about wiring different sections. As regards the connection of wiring from different metals, here you really need to be extremely careful, and without knowledge in this particular area, one should not even think about it. It's about twisted connections of the same wires. For example, when a portable lamp, extension cord, or long wire is torn from the window of the house to the engine heater in the car in the winter, as well as in the summer cottage when the cable is broken from the house to the bathhouse, barn or aviary with the animal. The cases are different, somewhere someone stumbled and cut off the wire, somewhere it was torn by the wind, or an ice floe falling from the roof - it doesn’t matter. The main thing is that it is important to apply reliable twisting to each type of wire so that the connection is no weaker than a solid cable.
Twist wires without soldering that do not break

Of course, many will say that at break you can simply twist the two bare (and de-energized!) Ends of the wire with an ordinary twist, tin this twist well and wrap it with electrical tape. But not everywhere we use a soldering iron. For example, if the wires are aluminum. Soldering aluminum wires, of course, is quite realistic, but not by what is usually used when soldering copper. Anyway, soldering aluminum is still a headache ... And it may not always be available, for one reason or another, a soldering iron. Also, the braid has an important role in the strength of a wire or cable. On some of our joints, it will be double - as an additional strengthening of the gap, the inner layer of electrical tape, the outer one of the heat shrink tube. And now I propose to consider several types of reliable twists that will help do without a soldering iron with tin.

Will need


  • Clerical knife.
  • Pliers.
  • Nippers or scissors (depending on the wire).
  • Insulating tape.
  • Heat shrink tubes (with a diameter for the thickness of each core separately, and for the cable thickness, in general).

Twist wires without soldering that do not break

Method 1: flexible single copper wire.


Trim the wire ends with wire cutters or scissors. Remove two centimeters of braid from the end of the wire.
Twist wires without soldering that do not break

Divide the copper hairs in the wire into two halves. This will result in a bifurcated ending.
Twist wires without soldering that do not break

Repeat the procedure with the second wire. Attach the forked ends to each other and twist them, each branch separately.
Twist wires without soldering that do not break

Next, pull the wire slightly so that it becomes straight, and twist each branch around the wire in the opposite direction from each other.
Twist wires without soldering that do not break

Wrap with electrical tape and crimp with heat-shrink tubing.
Twist wires without soldering that do not break

Method 2: hard single aluminum wire.


This method of twisting for aluminum wiring of a small section is the most tensile. Moreover, not so time consuming. Prepare the wiring. For example, I took segments - long wires are not easy to control in front of the camera ... But the process is not too different, as you know, the only difference is that, in real work, you have to stand on a stepladder or chair ... So, we clean the core 3-4 cm from the braid.
Twist wires without soldering that do not break

We retreat from the edge of the braid about 6-7 mm. and bend the remains of the wire at an angle of 90 degrees.
Twist wires without soldering that do not break

We apply the bent ends of the wire to each other, like this:
Twist wires without soldering that do not break

We wind the bent ends of the wire onto the wire of the opposite wire.
Twist wires without soldering that do not break

We help ourselves with pliers, since it is very problematic to bend the end of a hard wire with our fingers. At the end, we isolate the insulating tape, and sit on top of the insulating tape shrink tube.
Twist wires without soldering that do not break

Twist wires without soldering that do not break

Done.And sooner (with excessive tension) the wire will tear in another place than this twist will creep.

Method 3: flexible two-wire copper wire.


In fact, there is nothing complicated either. First, divide the double wire into separate two cores. Ten centimeters on top. Then we strip the wires 3 cm. And immediately put on them shrink tubes, so as not to forget to do it later, otherwise, you will have to disassemble the twist back to correct this omission.
Twist wires without soldering that do not break

Twist wires without soldering that do not break

We repeat the above procedure with the second wire and immediately put on it another heat shrink tube, a little larger diameter, for the general insulation of both wires.
Twist wires without soldering that do not break

Next, we twist the bare ends, as follows: we apply wires to each other so that between the edges of the braids there is a distance of about a centimeter and a half. We wind the end of one wire onto the base of the other. Then, in the same way, the second wire. You get such a twist.
Twist wires without soldering that do not break

If in the description and in the photo it is not very clear how more specifically the twisting is done: in the video, at the end of the article, everything is quite clearly visible and understandable. Now we move the heat-shrink tubes pre-prepared on the wires to the twists themselves, and we seat them with a lighter.
Twist wires without soldering that do not break

Twist wires without soldering that do not break

Next, we move the common tube to the place of twisting and also seat it with a lighter. In addition to strengthening the braid, the heat shrink tube also performs some aesthetic function, it looks any better than the wound electrical tape.
Twist wires without soldering that do not break

Here's a twist. Strong and reliable, and most importantly - safe.
Twist wires without soldering that do not break

When working with electrical appliances and wiring, do not forget about safety measures. Use tools with undisturbed insulation and do not forget to disconnect the repaired object from the mains. Remember that the effect of electric current on the body is dangerous to health.
Twist wires without soldering that do not break

Watch the video tutorial


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Comments (47)
  1. Lashin Oleg Gennadievich
    #1 Lashin Oleg Gennadievich Guests December 4, 2018 13:14
    6
    isolation of the Greek wakes up and soldering the Greek Nibudit I did the experiment
    1. Well
      #2 Well Guests December 4, 2018 13:16
      49
      And you'd better learn Russian!
  2. Guest Vladimir
    #3 Guest Vladimir Guests December 4, 2018 16:50
    4
    The yellow-green shrink only on the PE conductor, however!
    1. Dmitry Golovkov
      #4 Dmitry Golovkov Guests December 28, 2018 10:46 p.m.
      0
      Yeah, if only technical supervision or military envoy is not presented. even with electrical tape, even with tape. And if you want well, then the sleeves and crimping tool or sleeves for soldering and a soldering iron
  3. Anton
    #5 Anton Guests December 5, 2018 07:32
    25
    When connecting a two-wire wire, the twists must be laid out by several. centimeters.
  4. Konstantin
    #6 Konstantin Guests December 5, 2018 08:49
    9
    "Method 2: hard single aluminum wire."
    As a result of such twisting, 2 sharp ends are formed perpendicular to the insulation. As a result, the risk of insulation rupture with all the ensuing consequences increases.
    Twisting is an exclusively temporary option that is not used by professionals when commissioning an object. Paying attention to installers who claim the opposite grief, who can not afford normal tools and supplies, is not worth it.
  5. rustle
    #7 rustle Guests December 5, 2018 10:57
    3
    give 0.75 kilowatts and twist into smoke! only the machine will save!
    1. the guest
      #8 the guest Guests December 15, 2018 09:21
      4
      I had such a twist on a kilowatt pump without problems working for 8 years being at a 10-meter depth in the well (constantly in the water) until the pump itself was bent. When I pulled out a faulty pump and unwound the electrical tape - the twisting was as if done yesterday !!! Copper shone and almost oxidized !!!
      1. Yura
        #9 Yura Guests December 31, 2018 01:15
        1
        will cover electrical tape and 8 years in water is probably a fairy tale and advice to never use electrical tape in such operating conditions
    2. the guest
      #10 the guest Guests December 15, 2018 09:30
      4
      A 1300-watt lawn mower with a 30 meter carry 0.75 sq. M. mm works without comment since 2009. There are two twists on the carry. So it all depends on the quality of the twist!
      My teacher in 1977 said: "Good twisting - is equal to soldering.".
    3. Guest Vladimir
      #11 Guest Vladimir Guests December 26, 2018 08:55
      0
      Before doing twisting, you just take off the insulation.))
  6. Guest Alexander
    #12 Guest Alexander Guests December 5, 2018 12:54
    9
    Thus, it is not advisable to strip the core from isolation, as you show in your photos. Because by cutting through the insulation with a knife, you are more likely to touch the core and damage it with a blade, which, when twisted, will receive fur damage and simply break off !. Do not believe me, do an experiment! Remove insulation on one sample using an isolation stripper (the most correct and fastest option), or with side cutters, and on the other sample with a knife, across the core (as in your photo). Then just swing the core until it breaks off. Duck with a damaged core will be enough only 2-3 bends and the core will break in the place of the cut !. Without damage, the core can withstand 10-15, or even more bends !. Before giving advice, study the material! Uninformed people will read your information, and then God forbid, something will happen to their wiring ...
  7. Guest Michael
    #13 Guest Michael Guests December 5, 2018 15:28
    3
    tear any of these twists. Only as a makeshift.
  8. Guest Sergey
    #14 Guest Sergey Guests December 5, 2018, 21:19
    6
    People do not do that !!! You will make trouble !!!
  9. Sektor
    #15 Sektor Guests December 6, 2018 10:43
    3
    Any sane electrician will tell you one thing. If you are doing this Ratsuha for yourself, then throw this obsession out of her head and buy a new wire. Not so expensive.
    And if for the "best" neighbor or "best" friend, then it will pull. Money doesn't smell.
  10. Pete M.
    #16 Pete M. Guests December 6, 2018 11:26
    2
    The third gap twist will not work.
  11. SE
    #17 SE Guests December 6, 2018 17:45
    3
    there are terminal blocks if you do not want a fire ....
    1. Dmitry Golovkov
      #18 Dmitry Golovkov Guests December 28, 2018 22:54
      0
      Well, in general, that is, there are also tinned and not tinned sleeves, for soldering and crimping, but as a temporary barracks I can twist and without any HERE, wrap with a regular tape
  12. Guest Sergey
    #19 Guest Sergey Guests December 7, 2018 11:00
    5
    they are not soldered in order not to break it, but they exclude oxidation which adversely affects contact.
  13. Megavolt
    #20 Megavolt Guests December 7, 2018 11:12
    4
    twisting of flexible conductors is generally not permissible, and for such a twisting of a monolithic wire it is necessary to tear off the eggs. afftor clearly did not read the electrical installation manual
  14. evgeniy
    #21 evgeniy Guests December 7, 2018 21:24
    2
    you twist the normal twist, if there is no soldering, but you need to connect it for a while, the twists do not care if they are of the same material, copper and aluminum cannot be
    1. Sektor
      #22 Sektor Guests December 8, 2018 1:47 p.m.
      1
      If one or two times, then aluminum and copper can also be twisted, nothing will happen if the load is not more than 200 watts.
      But it’s much cheaper, in terms of future fire damage, to go to the nearest Master store and buy a new wire.
      1. Dmitry Golovkov
        #23 Dmitry Golovkov Guests December 28, 2018 10:56 p.m.
        1
        But in other stores not?
  15. Anton
    #24 Anton Guests December 8, 2018 12:53
    1
    It is necessary to bring such self-made to responsibility! Well, people create a danger for themselves, then they themselves pay for it. But here are such posts ... After all, you will not come to everyone later, you will not read the PUE 7th edition, paragraph 2.1.21!
    People! Any twisting is prohibited, any do not provide reliable contact and as a result are heated. Depending on the load, the oxidation of the compound occurs quickly or slowly, but always leads to heating. And so the fires occur!
    And do not say here that you have done so and have been working for 20 years. It all depends on the load. This is not an indicator. According to the reliability of the connection between twisting and crimping / soldering / bolt / quick-clamp connection
    This method is suitable only for temporary use, only under vigilant supervision, only briefly and for small loads.Unless of course you want to burn out in a dream ...
  16. Vostrikov Stanislav Aleksandrovich
    #25 Vostrikov Stanislav Aleksandrovich Guests December 9, 2018 20:34
    5
    Damn, most commentators, as if they were considering this material for high-voltage transmission lines. I haven’t sinned for 30 years and haven’t burned out like that. It is usually heated with poor contact, the wire cross section mismatches, well, the hand ... is different. So if there is the feeling that the arms and head are not in the right place, in no case do not experiment.
    1. the guest
      #26 the guest Guests December 10, 2018 21:05
      2
      You will be surprised, but high-voltage power lines are on twists.
    2. Evgeniy
      #27 Evgeniy Guests December 28, 2018 09:57
      0
      in the Bashkir city ... the house of the daughter of the chief power engineer burned out from ignition of electrical wiring!
  17. Maksim
    #28 Maksim Guests December 9, 2018 9:51 p.m.
    1
    In appearance, everything is logical and reliable, but! Never do that! Even temporarily, here the author is clearly not at the time of twisting, judging by the preparation with heat shrink. I almost burned the house down with such a twist, it was also temporary. After this incident, I bought bolted terminal blocks with a margin, they cost a penny, and prevent trouble.
    1. Evgeniy
      #29 Evgeniy Guests December 10, 2018 10:37
      1
      Kapets is the people here, did not try to read at the beginning - "For example, when a portable lamp, extension cord, or a long wire breaks from the window of a house to the engine heater in a car in winter ...". What PUE, what wiring ...
    2. Guest Oleg
      #30 Guest Oleg Guests December 16, 2018 22:04
      2
      If you had the correct ones in the house at the input in the shield: voltage relays, RCDs and circuit breakers, then believe me, no temporary twists will lead to any trouble - for this, the automation described above is installed. But even in this case, the twists should be temporary, and then do everything “as expected”.
    3. Dmitry Golovkov
      #31 Dmitry Golovkov Guests December 28, 2018 10:58 p.m.
      0
      There is nothing more permanent than temporary
  18. Sas
    #32 Sas Guests December 11, 2018 17:41
    0
    America discovered
  19. Kirill
    #33 Kirill Guests December 13, 2018 10:12
    1
    Electricity is the science of contacts and it is important to know. And in order for the contact to be good, it is necessary to use specially installed auxiliary means, for example, clamping or screw terminals. It is also very important to know that the operation of electrical wiring with a broken integrity of the insulation and the core, especially on the street is FORBIDDEN! and just dangerous for your life. And before giving such advice, the author of the article should think about responsibility for his words. Twisting can be used for emergency wiring repairs only if 2 conditions are met. 1 Ensure the safety of the junction. so that no person or animal accidentally gets under stress, especially the street. 2) As a matter of urgency, replace damaged wiring or repair it using special tools (couplings, terminals, crimp sleeves, heat-strengthened tube with adhesive epoxy composition, special connectors and junction boxes with a degree of protection against BOC not less than IP 54-65) For repairs, please study the material at least on how to do this or call a qualified electrician. Remember electricity is dangerous especially in humid environments and is doubly dangerous because it is not visible and because this danger is underestimated. And now with regard to specifically “twisting”, since twisting is not a galvanic compound and it is impossible to ensure its good mechanical strength, sooner or later due to heating, the formation of oxides and the heating phase cools down, severe overheating occurs that violates the integrity of the core insulation and causes a short short circuit, and it in turn can cause a fire. It is not for nothing that in the main book of electricians PUE which is the law, twisting of cable conductors without subsequent crimping onto a sleeve or welding is prohibited, this also applies to copper and aluminum. And the last one. IMPORTANT TO KNOW It is strictly forbidden without galvanic isolation of those. (a mediator of the electrical connection) to connect conductors of different metals such as, for example, copper-aluminum, etc., since such a connection will create a galvanic pair, it will cause thinning of aluminum due to copper oxide burning and fire.
    1. Vall
      #34 Vall Guests December 13, 2018 10:42
      3
      Oh blurted out clever words, pipets.Yes, it's just a twist. In the car, you urgently need to connect something, so as not to break, what will you look for any garbage too?
      How am I responsible ?! They give you advice for free, but you want to do it, but you want not! What kind of people.
      Yes, you read the title of the article! They don’t talk about correctness.
      1. Dmitry Golovkov
        #35 Dmitry Golovkov Guests December 28, 2018 23:07
        0
        At first in the engine compartment it’s poh .. how I twisted it, then because of my own drink .... the high pressure gas pipeline burst, but if you think about it, there’s some kind of twisting
  20. Guest Alex
    #36 Guest Alex Guests December 13, 2018 17:15
    1
    Twisting is FORBIDDEN in the current edition of the Electrical Installation Rules.
  21. Guest Igor
    #37 Guest Igor Guests December 14, 2018 05:04
    0
    But at work, as usual, there is nothing. A wire of three veins (the earth does not count) It happens. And what color is the "earth"? The question is not for electricians. And I wound a piece of electrical tape from the old connection if there is one, or with tape if any, if possible. You can also use the Twist rag just against the other. It's not up to show-offs, you have to work.
  22. Abdul
    #38 Abdul Guests December 14, 2018 10:06
    0
    Something many do not like twisting. Look at the electrical support, there are all the wires on the twist. If dismantling is not planned, then twisting is the best solution, since it has a huge contact area.
  23. Guest Nikolay
    #39 Guest Nikolay Guests December 14, 2018 11:37
    0
    PUE does not allow twisting, well, purely for reference.
    1. Peter
      #40 Peter Guests December 14, 2018 17:21
      0
      A lot of things are also written on the fence. Take a look at the laws, by whom and how they are written, and here you are about some PES. It is necessary to practice, and not to quote books ..
      1. Guest Alex
        #41 Guest Alex Guests December 21, 2018 5:04 p.m.
        1
        In any house, after repair by such "masters" as Peter, after a few years, half of the twists with petrified electrical tape. And it stiffens from the fact that it is warming. Here it is, the truth of life.
      2. Dmitry Golovkov
        #42 Dmitry Golovkov Guests December 28, 2018 23:09
        0
        PUE is the bible of an electrician
  24. Guest Sergey
    #43 Guest Sergey Guests December 16, 2018 18:16
    0
    article ... to the hostess
  25. Guest Oleg
    #44 Guest Oleg Guests January 1, 2019 at 9:53 a.m.
    0
    It’s good to show in the house and if in a 20 degree frost
  26. Guest Dmitry
    #45 Guest Dmitry Guests January 2, 2019 10:50 AM
    0
    Remove insulation with a knife and show it as a quality job! Buy yourself a stripper, maybe then you will at least be a little different from the teapot!
  27. the guest
    #46 the guest Guests March 3, 2019 12:06 a.m.
    0
    Find the 1972 Beginner's Manual electrical tutorial and all of these methods are listed there!
    Yes, wire stripping is wrong. A minimum of 5 rings is made. And so there the formula is indicated how many rings and what section! Such a twist can be done up to 10 square!
  28. Dimon
    #47 Dimon Guests June 25, 2019 09:49
    0
    "IMPORTANT TO KNOW It is strictly forbidden to connect conductors of different metals, such as copper-aluminum, etc., without galvanic isolation of those (a mediator of electrical connection), since such a connection will create a galvanic pair, which will cause thinning of aluminum due to copper oxide burning and fire."
    Is galvanic isolation - how is it?
    Put the transformer?

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