Outside is plastic, Wires are copper (good conductor), Pins are brass(hard metal).
3 terminals and 3 Wires - Live wire (Brown), Earth Wire (Yellow/Green) and Neutral Wire (Blue).
Safety
Cable Clamp - holds wires together.
Plastic Casing around wires - reduces chance of electrocution from the wires inside.
Fuse melts if currents too high.
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