Wiring regulations — BS 7671

What you'll learn

1. 1

   BS 7671 is the rulebook for all electrical wiring in the UK — like a safety manual 📘.

2. 2

   What does BS 7671 do?

3. 3

   Drag the cable size (mm²) to match the correct circuit — 1.5 mm² for lighting, 2.5 mm² for sockets.

4. 4

   Let's check if a 2.5 mm² cable can carry 20 amps safely 📝.

5. 5

   A 1.5 mm² cable can carry 16 amps. Is it safe for a 10 amp lighting circuit?

6. 6

   Set the RCD (residual current device) to trip at 30 mA — that's the standard for socket circuits 🔧.

7. 7

   What does an RCD do when it detects a fault?