Tester

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Across
  1. 4. Never ----- a cord, power point or appliance that has caused a shock (5)
  2. 5. A unit of power equal to 1000 watts (8)
  3. 7. An energy efficient lightbulb (11)
  4. 10. You should stay 10 ------ away from fallen powerlines (6)
  5. 11. Set your --- ----------- to between 19°C and 24°C in summer and 18°C and 22°C in winter (3,11)
  6. 12. ---- before you dig (4)
  7. 15. Switch off the power before plugging or unplugging ---------- and hold the plug, not the cord (10)
  8. 17. Your home safety switch should be tested every ----- months (5)
  9. 18. Install ----- detectors. Test them regularly, vacuum them every 6 months and change the battery each year (5)
  10. 20. What’s used to show the energy efficiency of an electrical appliance? (5)
  11. 21. Who invented the first successful light bulb? (6,6)
Down
  1. 1. What you do when you’re finished watching television (6,3)
  2. 2. The best way to dry your clothes (11)
  3. 3. Never stick a ----- into the toaster to release stuck toast (5
  4. 6. When flying your kite, stay away from these (10)
  5. 8. Install a ----- protector in your home to protect sensitive electronic equipment (5
  6. 9. If you’re going away, ---- --- and unplug non-essential electrical equipment to avoid damage from power surges (4,3)
  7. 13. A unit of electrical power (4)
  8. 14. This does not mix with electricity (5)
  9. 16. Renewable energy from the sun (5)
  10. 17. The phone number you call if you find a fallen powerline (6,3)
  11. 19. Every home should have an ------ checklist to prepare for electrical outages (6)