9. The gas, water and central heating pipes the building, not forming a
part the electrical installation are called:
a. overload
d.
8. short circuit. earthing
b. earthing conductors
b. current which exceeds the rated value otherwise healthy
circuit one definition of:
a. bonding conductors
c. earthing
b.
11. bonding conductors
c. earth conductors
b. The linking together the exposed extraneous conductive parts of
an installation for the purpose safety one definition of:
a. The conduit and trunking parts the electrical installation are:
a. extraneous conductive parts. exposed conductive parts
d. overload
d. bonding
c. overcurrent resulting from fault negligible impedance one
definition of:
a. The connection the exposed conductive parts installation the
main protective earthing terminal the installation one definition of:
a. extraneous conductive parts. exposed conductive parts
d.
12. earthing
b. overload
d. short circuit. exposed conductive parts
d.
10.137
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
7. short circuit. protective equipotential bonding
c. protective equipotential bonding
c. bonding
c.
. extraneous conductive parts. earthing
b
