By limiting each terminal to a single pigtail, you keep the connection tight and the device working within its design limits. That short conductor is the pigtail, and its presence reflects one of the most important principles in residential electrical work: keeping the circuit continuous and reliable regardless of what happens at any single device. This technique is often employed when three or more wires need to be joined, ensuring that the. According to the National Electrical Code (NEC), multiple wires must never be connected directly to a single device terminal, making the pigtail connection a critical safety solution. This method involves connecting the circuit's main wires to a short jumper wire, or pigtail, which then connects to the terminal of the device.
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