Worksheetsfault loop impedance
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
what do you bridge together to measure fault loop impedance
a)
A-N
b)
A-E
c)
E-N
2.
what things affect impedance
a)
length
b)
CSA
c)
material
d)
heat
3.
what tables cover fault loop impedance in the as3000
a)
T8.6
b)
T8.1
c)
T8.5
d)
T8.2
4.
under normal conditions does current flow in a neutral conductor
(a)
5.
what makes up impedance
a)
resistance
b)
capacitance
c)
inductance
d)
reactance
6.
do you test for impedance on a live circuit?
(a)
7.
under what conditions will current flow in a earth conductor
(a)
8.
what type circuit breaker is typically used in domestic installations
a)
a
b)
b
c)
c
d)
d
9.
at what point (Eg. which socket outlet) would you carry out an earth fault loop impedance test
(a)
10.
are you feeling confident
a)
yes
b)
no
100 %
