The video discusses the common mistake of connecting stranded wire to solid core wire using a wire nut, which can lead to loose connections, additional heat, and potentially, a fire hazard. The correct approach is to lead with the stranded wire and twist it slightly before connecting it to the solid core wire. However, the video also recommends using Wago 221 lever nuts, which are approved for stranded and solid core wires, and provide a more consistent and secure connection. These connectors are reusable, can handle high loads, and are a great option for DIYers.
Here are the key facts extracted from the text:
1. When connecting stranded wire to solid core wire, a common mistake is not ensuring a secure connection.
2. A loose connection can cause additional heat in the junction box, lowering the life of the connections, and potentially leading to arcing or short circuits.
3. To connect stranded and solid core wires, strip the wires to the correct gauge using a wire stripper.
4. When stripping stranded wire, use a pre-twist to prevent frayed wire.
5. The correct approach is to lead with the stranded wire and insert it into the wire nut first.
6. A wire nut should be used with caution, as it can bite into the solid core wire but not the stranded wire.
7. Wago 221 connectors are a recommended alternative to wire nuts for connecting stranded and solid core wires.
8. Wago 221 connectors are approved for use with stranded wires and are designed for consistent connections.
9. Wago 221 connectors are more expensive than wire nuts but offer a more secure connection.
10. Wago 221 connectors are reusable and can be removed from wires without damaging them.
11. The cost of Wago 221 connectors can range from 5 to 10 times more than a standard wire nut.
12. Wago 221 connectors are commonly used in European markets for electrical connections.