What is the role of green colored wire in the three pin devices in domestic connections?

Explanation

**Step-by-Step Solution:**

1. **Understanding Domestic Connections**: In domestic electrical systems, devices are typically connected using three wires: live (usually brown or red), neutral (usually blue or black), and earth (green).

2. **Identifying the Green Wire**: The green colored wire in these connections is specifically designated as the earth wire.

3. **Function of the Earth Wire**: The primary role of the earth wire is to provide a safe path for excess electrical current. This is particularly important in the event of a fault in the electrical appliance or wiring.

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