In a three-pin plug, the earth pin is typically connected to which conductor color?

In a three-pin plug, the earth pin is typically connected to which conductor color?

• A. Green and yellow striped wire in a plug
• B. Blue wire
• C. Red wire
• D. White wire

Answer: (A)

The earth (ground) conductor is identified by green-and-yellow stripes. This color-coding marks the protective earth path, which is connected to the earth pin in a plug so that any fault current has a low-resistance route to ground, reducing shock risk. Blue is typically neutral, red or brown are live (depending on the standard), and white is not a standard mains color in most regions. So the earth pin is connected to the green-and-yellow striped conductor.

The earth (ground) conductor is identified by green-and-yellow stripes. This color-coding marks the protective earth path, which is connected to the earth pin in a plug so that any fault current has a low-resistance route to ground, reducing shock risk. Blue is typically neutral, red or brown are live (depending on the standard), and white is not a standard mains color in most regions. So the earth pin is connected to the green-and-yellow striped conductor.