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Making the connection

Discussion in 'General Electronics Discussion' started by droidus, Oct 29, 2020.

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  1. droidus

    droidus

    3
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    Oct 29, 2020
    I am trying to connect two wires. Here is what I have:
    https://ufile.io/pprmvh7h
    I attached the metal device to the yellow wire (I assume it goes on there at this stage). From here, I am not sure what to do.
     
  2. bertus

    bertus Moderator

    1,686
    655
    Nov 8, 2019
    Hello,

    Not many will like to download the file from an unknown site.
    I have downloaded the image, resized it and will upload it here for the others to see:

    Iconnecting wiresjpg.jpg

    Bertus
     
    Martaine2005 likes this.
  3. Martaine2005

    Martaine2005

    3,325
    910
    May 12, 2015
    You’ll have to terminate the yellow wire.
    Push the silicone sleeve on the yellow wire first then you have to crimp the bullet shaped piece to hold the yellow wire tightly. Make sure it is metal to metal contact.
    You can use pliers to squeeze/squash the bullet connector but a crimper is the correct tool to use.
    Or solder it of course.

    Martin
     
  4. bertus

    bertus Moderator

    1,686
    655
    Nov 8, 2019
    Hello,

    It looks like the yellow wire is pushed in to far:

    Connecting wires comment.jpg

    Bertus
     
    Tha fios agaibh likes this.
  5. Tha fios agaibh

    Tha fios agaibh

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    Aug 11, 2014
    Good catch. It should be crimped and soldered there.

    Do yourself a favor and cut off those garbage connectors and just use a crimp butt splice.
    20201029_161802.jpg
     
    Martaine2005 likes this.
  6. Martaine2005

    Martaine2005

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    910
    May 12, 2015
    Yes, I thought the yellow wire was fairly obviously too long and needed cutting. I should have mentioned it.

    Cutting off the existing and replacing with in-line butt connectors still requires a crimper but wont allow for quick disconnect/connect.
    But up to the OP I guess.

    Martin
     
  7. droidus

    droidus

    3
    0
    Oct 29, 2020
    Does the silicone sleeve protect from interference?
     
  8. droidus

    droidus

    3
    0
    Oct 29, 2020
    IMG_20201029_174725.jpg Also, how did I do? I know it is hard to make out... It is my first time doing this...
    It is hard to tell, but I assume the red fuse tap end wire is touching the metal "butt" connector?
     
  9. Martaine2005

    Martaine2005

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    May 12, 2015
    Erm.. it stops it interfering with other bare wires or conductive objects by insulating it against short circuit.

    That looks ok for your first attempt. Try pinching down on the metal tabs to hold the yellow insulation too. Don’t forget to slide the silicone sleeves over to insulate the joint.

    Martin
     
    droidus likes this.
  10. bertus

    bertus Moderator

    1,686
    655
    Nov 8, 2019
    Hello,

    Soldering the wires together will make a permanent connection. You could use heat shrink tubing for isolation.
    You even can get heat shrink tubing with glue inside to make it water tight.
    When you want to have a removable connection, the connectors the TS used can be used.
    In that case the plug (yellow wire) can be removed from the socket (red wire).

    Bertus
     
  11. davenn

    davenn Moderator

    13,798
    1,939
    Sep 5, 2009
    No, no no haha
    that will destroy the connector

    the crimping is done only at the end near where the yellow insulation end is, like what has been done with the other connector
     
  12. davenn

    davenn Moderator

    13,798
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    Sep 5, 2009

    no, it stops the bare connect from short circuiting out on other bare wires or metal casing etc
    Purely for electrical insulation
     
  13. Martaine2005

    Martaine2005

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    910
    May 12, 2015
    Damn, I’ve been doing it wrong all these years!.
    Well spotted Dave, I certainly could have phrased it better.

    Martin
     
    davenn likes this.
  14. Bluejets

    Bluejets

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    Oct 5, 2014

    Attached Files:

  15. Kiwi

    Kiwi

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    88
    Jan 28, 2013
    Sorry, but I have to strongly disagree with you there.
    Those bullet connectors when crimped correctly, like the red wire is, are very good. I would also not recommend soldering. They are not fully waterproof, but do give quite good protection. Very common connector in Asian automotive equipment. Also used in many other applications, eg household appliances.

    The "crimp butt splice" connectors you show are what I would be more likely to call garbage.
     
    davenn likes this.
  16. ratstar

    ratstar

    486
    19
    Aug 20, 2018
    if its not permanent, and your testing stuff out, I just twist em together. and i strip em with my beaver toof.
     
  17. Tha fios agaibh

    Tha fios agaibh

    2,143
    724
    Aug 11, 2014
    The problem with those cheap Chinese bullet connectors are that they are mechanically weak and when flexed they loosen at the barrel.
    A properly sized and spliced butt connector can handle more current while being strong enough to withstand flexing.

    There are better grade barrel connectors like the one Bluejet posted, but in my experience, those Chinese tin connectors are notoriously a loose connection.
     
  18. bertus

    bertus Moderator

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    Nov 8, 2019
    droidus likes this.
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