Electricity is safe behind plastic and inside the right cable, but a nick in the insulation, a splash of water, or one too many plugs in a socket turns a quiet supply into a real danger.
Common electrical hazards are damaged insulation, overheating cables, damp conditions and overloaded plugs or sockets. Each raises the risk of an electric shock or a fire.
Definition · learn the exact words
An electrical hazard is anything that raises the risk of a shock or a fire. The main ones are damaged insulation, overheating cables, damp conditions and overloaded sockets.
Water lowers resistance and makes shocks more likely; overloading draws too much current and overheats wires.
Section 01
Spot the hazard.
Inspect a room and identify what makes each situation dangerous.
Stage 1 · Learn
Check hazards
Four quick checks. Each correct answer earns XP and lights this skill on your star map.
Quick check+10 XP
Damaged insulation on a cable is dangerous because it...
Quick check+10 XP
Using electrical appliances in damp conditions is dangerous because water...
Quick check+10 XP
Plugging too many appliances into one socket can cause...
Quick check+10 XP
A frayed cable with exposed wires should be...
Section 02
Four risks to know.
Each hazard threatens either a shock or a fire, or both.
Damaged insulation: exposes the live wire, so touching it can give a shock.
Overheating cable: too much current heats the wire and can start a fire.
Damp conditions: water lowers resistance, so current passes more easily and shocks are more likely.
Overloaded socket: too many appliances draw a large current that overheats the cable.
Examiner trap
Water and damp conditions are dangerous because they lower resistance and let current pass through the body more easily. Overloading a socket draws too much current and overheats the cable, which can cause a fire.
Stage 2 · Exam
Exam-style questions
Unlocks once the four checks above are done. Worth more XP, written in the style of Paper 2.
Finish the four checks above to unlock the exam questions
Exam style+20 XP
Why is it especially dangerous to use a mains appliance with wet hands?
Exam style+20 XP
A long extension lead runs many high-power heaters from one socket and the cable becomes hot. The hazard is...
Exam style+20 XP
Which situation is the greatest electric shock hazard?
Skill unlocked
Hazards, mastered.
Electrical hazards are mapped. Keep the chain going.