A few weeks ago, we ran an article on the Lineman’s Splice. While that particular splice has proven reliable over decades of use, it is a bit labor intensive and requires some learned soldering skills, which means it can be difficult to make a proper Lineman’s Splice in a tight space where there’s limited access to the wires.
Thankfully, our amateur radio pals over at DX Engineering have an easier solution.
You can also get similar connectors in an assortment pack from Summit Racing.
How Do Heat Shrink Self-Solder Splice Connectors Work?
Simply push your stripped, stranded wire ends together, slip one of these connectors over the joint, and hit it with a heat gun for a few moments.
The heat will melt the low-temp solder between the stranded wires to create a solid electrical connection, while simultaneously contracting the heat-shrink tubing to reinforce the joint and make a weatherproof shield over the splice.
They’re a smart solution for anyone who has to make a ton of wire connections and wants to speed-up the process.
Better still, the foolproof design of these connectors eliminates many issues caused by faulty connections as a result of moisture ingress and physical strain/vibration.
Here’s a video that demonstrates how they work and how to install them.