Electrical installations: fault diagnosis and rectification

Aim: The unit is designed to enable learners to understand how to carry out fault diagnosis and rectification of complex electrical systems safely and in accordance with regulatory requirements, with an emphasis on period inspection scenarios. Learners will also develop the skills to apply their understanding of fault diagnosis in simulated environments.

Learning outcome

1. Understand the Health and Safety requirements relevant to fault diagnosis

1. state the dangers of electricity in relation to fault diagnosis work

2. identify the Health and Safety requirements relevant to diagnosing and correcting electrical faults in electrical systems and equipment

3. specify safe working procedures that should be adopted for completion of fault diagnosis and correction work.

2. Understand the importance of reporting and communication in fault diagnosis

1. describe the documentation relevant to fault diagnosis

2. state the implications of the fault diagnosis for customers and clients

3. explain the communication requirements relevant to fault diagnosis

3. Understand the nature and characteristics of electrical faults

1. identify types, causes and consequences of electrical faults

2. describe typical types of faults and their likely locations in wiring systems and equipment.

4. Understand the fault diagnosis procedure

1. state precautions that must be taken when carrying out fault diagnosis with regard to particular locations, equipment and circumstances

2. explain the logical stages of fault diagnosis.

3. select the appropriate test instrument/s for fault diagnosis work

4. describe how test instruments are confirmed to be fit for purpose and functioning correctly

5. specify an appropriate and logical procedures for carrying out fault diagnosis tests

6. analyse and determine if test results are acceptable

5. Understand the procedures and techniques for correcting electrical faults

1. identify factors which can affect repair or replacement of equipment

2. specify the procedures for verifying that the fault has been corrected suitably for the situation using technical analysis.

3. state the methods to ensure the safe disposal of any waste and that the work area is left in a safe and clean condition

6. Perform fault diagnosis

1. follow safe working procedures

2. evaluate and apply appropriate fault diagnosis methods and techniques

3. diagnose electrical faults using engineering decision and evaluation of symptoms and findings

4. recommend the appropriate action/s to correct the fault