Electricians Dip Their Wires ⚡ - Video

A few bare wires, twisted together where they come out of a wall box. A small pot of molten solder is lifted up underneath them, the twisted ends dip in for a moment, and they come out coated in a bright, chrome-like layer that has fused the whole bundle together. ⚡

This is dip soldering, or tinning, done with a solder pot. The pot keeps a small bath of solder molten, typically somewhere around 370-425°C (700-800°F). Because there's so much hot liquid metal in the pot, it heats the wires by itself, and the solder flows into every gap between the strands, locking them into one solid piece. ⚙️

A solder coating also protects the copper from oxidation and corrosion, which is one reason tinning is standard practice in electronics and wire processing, and why wire suppliers dip stripped ends so the strands don't fray. One trade publication even cites research finding tinned conductors can last close to 10 times longer than bare wire. ????

It isn't the right choice for every connection, though. Solder can create a stiff spot where the wire flexes, and many modern electrical codes rely on mechanical connectors instead, so dip-soldered splices like this are more common in older installations and specialized work.

In This Video:
• A solder pot at roughly 370-425°C heating and coating twisted wires in one dip
• Why solder fills the gaps between strands and protects copper from corrosion
• Where tinning helps, and why it isn't used for every type of connection ????

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