203: Electrical Installation Flashcards
1
Q
What size cables are used for domestic lighting circuits?
A
1mm(2) or 1.5mm(2)
2
Q
In a lighting circuit, an unknown point is assumed to have how many watts?
A
100
3
Q
Why should a minimum of 2 lighting circuits be installed in a property?
A
So there is a backup if one becomes damaged
4
Q
What is the BS number for a semi enclosed fuse?
A
BS 3036
5
Q
What is the BS number for a circuit breaker?
A
BS 60898
6
Q
What is the standard domestic 3-plate system known as?
A
The loop-in method
7
Q
What test instrument is used to test circuit resistance?
A
Digital/analogue multimeter
8
Q
What are the 4 types of bulbs?
A
Halogen. Incandescent. LED. Florescent
9
Q
What are the 3 types of cable trays?
A
Standard duty. Heavy duty. Flange
10
Q
Where would cable ladders be used?
A
Industrial buildings
