In electrical plugs, which position corresponds to the blue wire?

In standard electrical wiring for plugs used in many countries, the blue wire is typically designated as the neutral wire. When considering the physical layout of a three-pin plug, the neutral wire is commonly connected to the left side of the configuration when viewed from the front. This positioning allows for consistent wiring practices across various electrical systems, ensuring safety and functionality.

When examining the other possible placements, they often correspond to different wires: the live wire is generally positioned on the right, while the earth wire is placed at the top (or sometimes the bottom) depending on the specific design of the plug. This standardization helps minimize the risk of electrical errors during installation and maintenance. Understanding these conventions is crucial for anyone working with electrical equipment to ensure safe and correct wiring practices.