'Electricity can be dangerous if not used properly.' (www.safeelectric.ie)
(i) Describe how the following electrical safety devices provide protection when using electricity in the home - Leaving Cert Home Economics - Question 1.1(c) - 2022
Question 1.1(c)
'Electricity can be dangerous if not used properly.' (www.safeelectric.ie)
(i) Describe how the following electrical safety devices provide protection when using e... show full transcript
Worked Solution & Example Answer:'Electricity can be dangerous if not used properly.' (www.safeelectric.ie)
(i) Describe how the following electrical safety devices provide protection when using electricity in the home - Leaving Cert Home Economics - Question 1.1(c) - 2022
Step 1
Describe how miniature circuit breakers provide protection when using electricity in the home.
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Answer
Miniature circuit breakers (MCBs) are vital safety devices that contain trip switches that interrupt the electricity supply. They automatically disconnect the current when a fault occurs or if the circuit becomes overloaded. When the issue is resolved, MCBs can easily be reset, ensuring continuous protection. Additionally, MCBs often incorporate Residual Current Devices (RCDs) that prevent electrical shocks by detecting imbalances in the current flow.
Step 2
Describe how earth wire provides protection when using electricity in the home.
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Answer
The earth wire acts as a safety feature by providing a low-resistance pathway for electrical current to flow safely into the ground. In the event of a fault, such as a live wire touching the appliance casing, the earth wire minimizes the risk of electric shock. By directing the faulty current away from the user and into the ground, the earth wire protects against electrocution, especially with appliances like washing machines.
Step 3
Outline four guidelines to follow for the safe use of electricity in the home.
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Answer
Do not overload sockets; avoid using multiple adapters, which can lead to overheating.
Regularly check electrical appliances for frayed cords and damaged plugs before use.
Unplug appliances before cleaning and ensure all are in good working order to prevent accidents.
Never bring electrical appliances into wet areas, such as bathrooms, to avoid the risk of electric shocks.
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