Question 5
- State three conditions for selecting cables to be used for installation.
- State two reasons for transmitting electricity by overhead conductors
Observation
The expected answers were;
(a) Conditions for selecting cables to be used for installation
- The current rating of the cable under defined installation conditions.
- The type of installation project.
- Environmental condition.
- The type of load to be supplied.
(b) Reasons for transmitting electricity by overhead conductors
- It is cheaper to install.
- Easy to carry out maintenance.
- Easy to detect fault.
- It can transmit more power.
- Cheaper to repair.
- Long distance transmission
Candidates did not perform well in this question.