Electrical Wiring and Safety

Flashcards reviewing key vocabulary and concepts related to electrical wiring and safety.

What is the voltage typical for mains electricity in households?

230V.

What is the maximum potential of a live wire?

325V.

What are the three types of wires typically found in electrical appliances?

Live Wire (Brown) and Neutral Wire (Blue) and Earth Wire (yellow and green stripes)

What is the purpose of the earth wire in electrical systems?

To protect the user by connecting the appliance case to the ground, preventing electric shocks.

What material are most electrical wires made from?

Copper.

What does a fuse do in an electrical circuit?

It breaks the circuit if too much current flows, preventing overload and potential hazards.

What distinguishes a two-core cable from a three-core cable?

A two-core cable does not have an earth wire and is used for appliances that are double insulated.

What is the primary purpose of insulating materials in electrical wiring?

To prevent electric current from unintentionally flowing where it shouldn't and to ensure safety.

What type of plug casing is commonly used in modern appliances?

A plastic case that does not conduct electricity.

Why is it important for the cable grip to hold wires in place?

To ensure that wires are not exposed, which enhances safety.