earthing
b.
9. extraneous conductive parts. earthing conductors
b.
. exposed conductive parts
d. protective equipotential bonding
c.
8. earthing
b. short circuit. The conduit and trunking parts the electrical installation are:
a. protective equipotential bonding
c. overcurrent resulting from fault negligible impedance one
definition of:
a. current which exceeds the rated value otherwise healthy
circuit one definition of:
a. earthing
b. bonding conductors
c.
10. short circuit.
11. extraneous conductive parts.
12. The gas, water and central heating pipes the building, not forming a
part the electrical installation are called:
a. earth conductors
b. earthing
b. bonding conductors
c. exposed conductive parts
d. The connection the exposed conductive parts installation the
main protective earthing terminal the installation one definition of:
a. extraneous conductive parts. The linking together the exposed extraneous conductive parts of
an installation for the purpose safety one definition of:
a. overload
d. bonding
c.137
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
7. overload
d. short circuit. bonding
c. overload
d. exposed conductive parts
d
