Structure
The test comprises of four sections –
A1 COMPOSITE INSTALLATION
Target time 10 hours
This is an installation which includes a range of electrical wiring systems, each devised to test a Candidate's proficiency in particular aspects of electrical installation work. The electricity supply will be provided from a TN S three phase 4 wire 400V system.
A2 VISUAL INSPECTION
Target time 30 minutes
Candidates are to carry out a visual inspection of the completed installation as required by the current edition of the IEE Wiring Regulation (BS 7671) and establish whether the results are acceptable by completing the Visual Inspection test sheet provided.
A3 FUNCTIONAL TESTING
Target time 30 minutes
After the installation has been inspected and tested each candidate will be required to demonstrate that the following final circuits operate correctly:
- Two-way and intermediate switched lighting circuit
- Operate the Landlords Key Switch
- Operate the Emergency Luminaire Key Switch to effect simulated mains failure
- Tubular heater
- Motor and control circuit
B INSPECTION AND TESTING
Target time 1 Hour 30 minutes
On completing the composite installation, each Candidate will be required to carry out prescribed pre commissioning electrical installation tests in accordance with IEE Wiring Regulation (BS 7671)
Each candidate will be supplied with necessary instruction, a copy of the current IEE On-Site Guide, test results sheets and a range of instruments from which to select and prepare the one appropriate for each test.
C1 SAFE ISOLATION OF TEST RIG (RISK ASSESMENT)
Target Time 15 Minutes
Each Candidate, prior to the commencement of the composite installation (Section A) will be required to demonstrate the safe isolation of their test unit to ensure and verify it is safe to work on. Candidates will be required to complete an assessment of safe working practice (risk assessment) sheet.
C2 SAFE ISOLATION OF SUPPLIES
Target Time 30 Minutes
Candidates will be required, under observation, to demonstrate how safely isolate circuits or items of equipment to ensure and verify it is safe to work on. This section of the test is carried out on the Fault Diagnosis Unit.
D1 FAULT DIAGNOSIS
Target Time 1 Hour 45 Minutes
Candidates will be required to diagnose and locate seven faults, introduced to the Fault Diagnosis Unit by the examiner, selected from a range of common faults. Each fault will be introduced individually to the Candidates by either the examiner demonstrating the fault symptom or by the use of job cards.
D2 FAULT RECTIFICATION (WHERE POSSIBLE)
Target Time 1 Hour 30 Minutes
Candidates will be required to diagnose, locate and rectify (where possible) five faults which will be introduced to the Fault diagnosis Unit. Each fault will be introduced individually to the Candidates with the use of job cards.