The gas, water and central heating pipes of the building not forming a part of the electrical installation are called:
A) earth conductors
B) bonding conductors
C) exposed conductive parts
D) extraneous conductive parts.

Question

Quizplus · Accepted Answer

Gas, water and central heating pipes are not part of the electrical installation and hence, are considered extraneous conductive parts.

The Gas, Water and Central Heating Pipes of the Building