What does CPC stand for in electrical installations?

303 #4 - Protective Conductors & Earthing Quiz

Quiz
•
Construction
•
Vocational training
•
Hard

Oliver Hall
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Circuit Protective Conduit
Central Power Control
Circuit Protective Conductor
Consumer Protective Contact
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a main protective bonding conductor?
To operate switches
To maintain voltage stability
To equalise potential between metal parts
To reduce energy use
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Supplementary bonding is typically required in:
Bedrooms
Bathrooms
Offices
Roof spaces
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Zs represent?
Source voltage
System resistance
Earth fault loop impedance
Safety zone
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What units is Zs measured in?
Volts
Ohms
Amps
Watts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the maximum disconnection time for a 230V TN system on a final circuit ≤32A?
5 seconds
1 second
2 seconds
0.4 seconds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which regulation chapter of BS7671 deals with disconnection times?
Chapter 42
Chapter 41
Chapter 52
Appendix 2
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