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A plain-English reference for UK wiring colours — new and old — your consumer unit, typical circuit ratings and plug fuses. Understand what's tripped and why, with a clear colour key you can trust. The reverse shows how to wire a UK 3-pin plug, how to find a faulty appliance after a trip, and the law on electrical work — so you know exactly where DIY ends and a registered electrician begins.

• ✓New & old wire colours
• ✓Consumer unit explained
• ✓Typical circuit ratings
• ✓Wire a 3-pin plug
• ✓Reset a tripped breaker
• ✓Plug fuse ratings & the law