Section 1
Safety principles
Where are prescriptive requirements located that all electrical installations must comply with?
List three design objectives that the design of an electrical installation should meet.
What is the purpose of compliant protection arrangements?
Name four safety principles.
What are two ways by which persons and livestock can receive an electric shock?
Provide the electrical meaning for the term 'isolation'.
Why is a one-way lighting switch not regarded as an isolating switch?
When are two parts deemed to be simultaneously accessible?
State the value of the conventional touch voltage limit.
Why is it essential that the earth path for a fault current be of low impedance?
What is another name for a low-resistance fault that causes a fault current to flow?
Describe one possible fire cause which is of electrical origin.
When has correct functioning of an installation been achieved?