Wire Connections and Insulation

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What happens here

Now, proceed with making the electrical connections. Twist the exposed copper strands of corresponding wires together to create a strong physical bond. Connect the green wire from the extension cord to the green/yellow wire from the power supply (ground). Connect the white wire from the extension cord to the blue wire from the power supply (neutral). Finally, connect the black wire from the extension cord to the brown wire from the power supply (live). After twisting each pair, use a crimping tool to secure a butt splice connector (such as Gardner Bender 20-121 Butt Splice Connector, 22-16 AWG, Red, as shown in the video) over each twisted joint. Ensure the crimps are tight by gently pulling on the wires. Once all connections are securely crimped, wrap the entire joined section with black electrical tape. This adds an initial layer of insulation and prevents accidental contact. Lastly, slide the pre-positioned heat shrink tubing over the taped connections, ensuring it covers the splices completely, and apply heat using a propane torch until the tubing shrinks tightly around the wires, creating a secure and professional-looking seal. After the first connection, slide the second heat shrink over the remaining exposed wire and heat it to secure.

Goal: Securely connect and insulate the power supply wires to the extension cord.

Tools and materials

Propane Torch — Shrinking the heat shrink tubing
Wire Strippers/Crimpers — Stripping wire insulation and crimping butt splices
Black Electrical Tape — Providing an initial layer of insulation and securing twisted wires
Heat Shrink Tubing — Providing final, durable insulation and protection over the electrical connections

What they say

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look and i look right here that is going to be attached and it's not going to come separated i actually take butt splice them then i wrap them with electrical tape then i heat shrink them right here with heat shrink and one thing you got to remember is put your heat streak tape on first because it's only so big and it won't fit over the end of the extension cord if you forget to do it i'm going to be using two because the distance between these two is almost about the distance that uh my heat shrink tape is so i'm going to overlap them because i want to make sure that your both ends of the cords overlapped you know by about a half inch or so so i'm going to use two heat straight tapes i'm going to put them both on my cord so i'm going to put them on now just slide them up and out of the way and then i'm going to use my butt slice butt splices right here so make sure once again green goes to the green we have a green wire so it's green and yellow stripe but that's going to go to the green end on my extension cord you want to make sure these are soldered ends if they're not soldered and they're just loose wires make sure you twist them and then when i put on my butt splices i put it on and actually twist it in the same direction that i twisted the wire and then i'm going to take crimp that just grip it tightly check it make sure it's on there do the next one once again green goes the green and we'll start off i'm going to put my green wire on make sure it's all the way in crimp that tightly make sure it's together so green goes to green blue goes to white now black goes to brown i'm just going to make sure these are all crimped nice and tight so these are all secure so i got black electrical tape and this is just going to be under my heat shrink tape and this is just going to be that you know added measure to keep these things together and keep them from you know pulling and pulling apart i'm going to wrap some around the wires right here on these ends where they come out of the butt splices because we don't want them pulling out of those butt slices tight connection right there what i used to do on my previous cars before i was using heat shrink tape i just would wrap these all the way up and all the way down with electrical tape and i would just leave it just like that and these would be done just like you know once they're fully wrapped but it just doesn't have that really nice clean look that the heat shrink tape adds to it and i'll show you how much…

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