AM2

Maximum Time Allowed: 45 Minutes

You will be allowed a minimum of 10 minutes to read this section and prepare for assessment.

To demonstrate your occupational competence, you’ll carry out the correct sequence for safe isolation of a distribution board to allow you to safely complete an installation.

This section will be fully observed by the Centre Assessor. This is the only way that they can see what you are doing. It can seem intimidating at first, so try and practice with a colleague watching you carry out some tasks on-site.

SAFE ISOLATION PROCEDURE

This is very important as if this is not done correctly on site it could result in someone getting an electric shock and, in the worst-case, death.

1. Identify your point of isolation
2. Inform the customer that you will be isolating the supply.
3. Operate the isolator and lock off and fit warning notice
4. Select approved test equipment and prove that it is working.
5. Test on the outgoing side of isolator all combinations:
   • L1 and L2
   • L1 and L3
   • L1 and Neutral
   • L1 and Earth
   • L2 and L3
   • L2 and Neutral
   • L2 and Earth
   • L3 and Neutral
   • L3 and Earth
   • Neutral and Earth

6. Re-prove your test equipment is working. 

RISK ASSESSMENT

This is a careful examination of the risks associated with both working practices and candidate and centre staff activities.

• A hazard is anything that may cause harm.
• A risk is a chance, great or small, that someone will be harmed by a hazard.

The aim is to make sure that no one becomes ill or gets hurt at the facility. There are three steps to achieve this:

1. Identify the Hazards

Look at what may cause harm to candidates, centre staff, or other people, because of a work activity.

2. Decide Who Might be Harmed and How

Look at who may be affected by the work activity, how they may be affected; this may include other candidates and centre staff.

3. Evaluate the Risks and Decide on Precautions

If you find a hazard, there may be a risk to other people; you need to decide what steps must be taken to eliminate or reduce those risks as far as is reasonably practical. Bear in mind:

• What needs to be done depends on whether the hazard is low risk or high risk.
• You can determine this by looking at what type of injury may occur and how often it may happen.
• It may be possible to remove the hazard altogether or to take steps to reduce this risk to an acceptable level.
• If there is no risk present, then you do not need to take any action.
• Record ‘No action required’ on the Risk Assessment document.

You also need to carry out a review of safe working practices and undertake a risk assessment in accordance with organisational requirements and procedures prior to commencing the Composite Installation. Record your findings on the relevant documentation.

Maximum Time Allowed: 8 Hours 30 Minutes

You will be allowed a minimum of 15 minutes to read this section and prepare for assessment

To demonstrate your occupational competence, you will be asked to:

• Apply industry working practices and procedures in keeping with relevant statutory and non-statutory regulations.
• Interpret the drawings and diagrams.
• Prepare, install, connect and terminate conductors and cables to industry standards.
• Terminate and connect at a TP&N Distribution Board and the identified equipment outlets as detailed in the handbook and diagrams you will have been given.

To complete this section of the assessment you must demonstrate occupational competence in accordance with statutory and non-statutory regulations and approved industry working practices.

You need to make sure that you follow all of the instructions given in the candidates’ handbook and drawings.

Maximum Time Allowed: 3 Hours 30 Minutes

You will be allowed a minimum of 20 minutes to read this section and prepare for assessment

This section will be observed by the Centre Assessor.

You will be provided with the following documentation for use throughout the section:

• BS 7671 Requirements for Electrical Installations
• IET Guidance Note 3. Inspection & Testing
• IET On-Site Guide

To demonstrate occupational competence, you’ll carry out a visual inspection of your installation and complete the following tests:

• Continuity of protective conductors, including main and supplementary bonding
• Continuity of ring final circuit conductors
• Insulation resistance
• Polarity
• Earth fault loop impedance
• Additional protection (effectiveness of RCDs)
• Prospective fault current
• Check of phase sequence
• Functional testing

You also need to correctly complete an Electrical Installation Certificate, Schedule of Inspections and Schedule of Test Results using the documentation provided.

You’ll be expected to follow practices and procedures that consider the presence of voltage sensitive equipment.

Faults / Alterations

During and within the time allowed for this section, you may correct any part of your installation that you decide is incorrect or not complete.

Maximum Time Allowed: 30 Minutes

You will be allowed a minimum of 5 minutes to read this section and prepare for assessment

The safe isolation procedure will be observed by the Centre Assessor.

To demonstrate occupational competence, you will carry out safe isolation in the correct sequence to allow for the following tasks:

Note: for tasks 1 & 2 all other circuits must remain energised.

• Task 1: To replace a single-phase piece of equipment
• Task 2: To replace a three-phase piece of equipment
• Task 3: To isolate the distribution board in your fault diagnosis bay.

Maximum Time Allowed: 2 Hours

You will be allowed a minimum of 5 minutes to read this section and prepare for assessment

To demonstrate occupational competence, you will identify the fault in each circuit from the information provided by the Centre Assessor.

You must state and record:

1. The type of each fault (short or open circuit; high resistance or mis-connection).
2. The specific location of each fault (between what 2 points or on what piece of equipment).
3. How each fault could be rectified, plus any additional works required to prove that the fault has been rectified.

Maximum Time Allowed: 1 Hour

You will be allowed a minimum of 5 minutes to read this section and prepare for assessment

You will complete an on-line assessment consisting of 30 multiple-choice questions. You must answer 21 correctly to pass the assessment (70%).

You’ll be assessed on your application of knowledge associated with the following:

• Health and Safety
• BS 7671 Requirements for Electrical Installations
• Building Regulations

You will be provided with the following publications:

• BS 7671 Requirements for Electrical Installations
• IET Guidance Note 3. Inspection & Testing
• IET On-Site Guide
• A Short Guide to the Building Regulations.

You are not allowed any other documentation.