A barrel connector is used to connect two pieces of wire together to form a smooth connection. Each of the wires is stripped about 1/4", then placed in either end of the connector.
The ends of the connector are clamped down usually with a pliers, then the ends of the barrel are heated to form a protective seal around the connection.
The end result is that you have a wire with an uninterrupted connection. I hope this helps.
Good luck!
Terrence comment: Thanks for helping us up by giving us this piece of useful information :)
Can you share us your name so at least i know who am I thanking to? :)
