Safety with Electricity Flashcards Preview

Gr 9NS > Safety with Electricity > Flashcards

Flashcards in Safety with Electricity Deck (6):
1

Name some uses of electricity

factories, mines, industries, households and streetlamps

2

Explain the course of electricity from where it is created to the endpoint

-Electricity is conducted from dynamos where it is generated
-through thick cables to substations
-from there it is distributed to households

3

How many wires are laid to a household's electricity meter? name them

-two wires
- a live wire
- a neutral wire

4

What does an electricity meter do?

it measures how much energy is used in the household

5

What is done for safety purposes?

-There is an earth wire connected to a metal wirepipe
- there is good conduction to earth

6

How does an earth wire work?

-the wirepipe the earth wire is connected to, does not carry charge, so it is a safety measure.