Question 6
- State the main purpose of testing an installation.
- State in sequential order, the tests to be carried out on a new installation.
Observation
The expected answers were;
(a) The main purpose of testing an installation
- It is done to detect faults before dangerous situations arise.
(b) The sequential order of tests to be carried out on a new installation
- Polarity test;
- Insulation resistance test;
- Earthing test;
- Continuity test.
Many of the candidates who attempted this question did fairly well in the first part but could not list the sequential order of testing on a new electrical installation.