BTEC Level 2 Eng Unit 009 Maintaining Electrical Equipment & Systems Assignment Answers

BTEC Level 2 Diploma in Engineering Foundation Competence

BTEC Level 2 Unit 009 Overview

This unit of competence was developed by employers within the Automotive Sector and is part of an integrated programme of development to meet the needs of the Sector, the published Apprenticeship Standard and Employer Occupational Brief. This unit of competence is intended to specify the training and development necessary to enable the learner to demonstrate that they are competent in the preparation for the electrical maintenance activities by acquiring all relevant information, documents, tools and equipment required to complete the maintenance activities and planning how they will complete the required maintenance operations and the sequence of operations they will use.
 
They will need to select the equipment to be used, depending on what maintenance activities they are required to undertake and the type of electrical equipment/systems they are working on. This will include electrical equipment that uses single, three-phase or direct current power supplies, and includes equipment such as control systems, motors and starters, switchgear and distribution panels, electrical plant, pumps, fans, alternators, generators, transformers, wiring enclosures and luminaires, portable appliances and other specific electrical equipment.
 
They will be required to apply a range of maintenance diagnosis techniques and procedures, including obtaining information from fault reports, using standardised fault finding techniques and diagnostic equipment, measuring, inspecting and operating the equipment. They will need to undertake a variety of maintenance activities, including locking off and disconnecting, removing and reconnecting electrical components, wires and cables, attaching cable identification markers, replacing defective, damaged or worn parts, cables and wires, setting and adjusting components, and conducting "off-load" tests before testing the equipment, using appropriate techniques and procedures. Their responsibilities will require them to comply with health and safety requirements and organisational policy and procedures for the electrical maintenance activities undertaken. They will need to take into account any potential difficulties or problems that may arise with the maintenance activities, and seek appropriate help and advice in determining and implementing a suitable solution. They will work under a high level of supervision, whilst taking responsibility for their own actions and for the quality and accuracy of the work that they carry out.
 
Their knowledge will give them an understanding of their work and will allow them to safely apply the appropriate electrical maintenance techniques and procedures. They will know about the electrical maintenance process and its use, the electrical equipment and systems being maintained, the components, tools and consumables used to the extent necessary to provide a basis for undertaking the activities to the necessary standard. They will understand the safety precautions required when carrying out the maintenance activities (especially those for ensuring that the equipment is correctly isolated), and when using maintenance tools and equipment. They will be expected to work safely and will know how they need to take responsibility to ensure the safety of themselves and others in the workplace.
 
They will be able to apply the appropriate behaviours required in the workplace to meet the job profile and overall company objectives, such as a strong work ethic, positive attitude, team player, dependability, responsibility, honesty, integrity, motivation and commitment. Specific unit requirements: To demonstrate the ability to combine different electrical maintenance operations, at least one of the electrical maintenance activities must be substantial and must include at least eight of the activities listed in paragraph 5 of the Skills section. 

Note:

One important note is that it is noticed that many students make the mistake of copying the information available in this sample directly into their assignments. This gets them the penalty of having plagiarised content, as it is posted online, and when your assignment goes through the plagiarism detector, it will be caught within seconds. So do not make such a silly mistake, as this can get you failing your assignments and even might get you to repeat your course.

(Solved) P1 Work safely at all times, complying with health and safety legislation, regulations and other relevant guidelines.

Answer:

It's essential when performing maintenance or repairs to electric equipment and systems to ensure it's done safely because electricity can be hazardous and even fatal. To eliminate the risk, all activities need to comply with health and safety regulations, such as the Health and Safety at Work etc. The 1974 Act, which places a duty on employers and employees to ensure the safety of their own and others' activities.

Risk assessments should be conducted before any work is started to identify the potential risks of electric shock, burn or fire. The risks then need to be controlled. For instance, equipment must be turned off and disconnected from the power source before maintenance work. A lock and tag system can also be applied to prevent the system from being re-energised.

Appropriate personal protective equipment (PPE), such as insulating gloves and safety boots, should be worn to prevent injuries. Tools and equipment should be checked to make sure they are safe and suitable for the job.

Communication, signage, and instructions must also be followed. Adhering to all safety policies, procedures, and regulations helps avoid injury and supports a safe working environment.

(Solved) P2 Demonstrate the required behaviours in line with the job role and company objectives.

Answer:

Behaviour is key when working in electrical maintenance. Employees should always be professional and adhere to company procedures.

Professional behaviour

-    Always be on time and stay reliable
-    Follow all the guidelines that are provided by supervisors.
-    Make sure you follow safety rules and wear PPE properly.
-    Carry a respectful and positive attitude towards everyone.

Teamwork and communication

-    No matter what the task or project is, always work with motivation with others.
-    Communication is the key to building relationships; use it accurately with supervisors and team members.
-    In case of any fault, problem, or any kind of safety risk, report it immediately to supervisors.
-    Pay attention to all feedback and instructions

Responsibility and Quality of Work

-    Always hold responsibility for the work allotted to you.
-    Complete tasks precisely and to high standards
-    Follow all the guidelines and procedures provided by the company.
-    Do not rush in completing any work, as this can lead to accidents and mistakes. 

Meeting company objectives

Company objectives refer to the good quality of work that is performed efficiently and with complete safety. Workers can support this by: 
-    Following all the safety procedures all the time.
-    Completing their allotted task in the provided time.
-    Avoid any kind of damage to the equipment and reduce waste.
-    Help the company keep its good reputation.

When workers follow correct and accurate behaviour in the workplace, they are not only able to perform efficiently, but they will also help the company in achieving its goals and maintaining a safe working environment. 

(Solved) P3 Plan the maintenance activities before they start.

Answer:

Before carrying out any electrical maintenance activity, proper planning is essential. This helps in making sure that the job is done accurately, without any delay and safely. 

Understanding the task
-    Going through and understanding all instructions and schedules of maintenance. 
-    Go through diagrams or drawings and all the manuals whenever it is needed. 
-    Make a list of all the equipment that needs to be replaced, inspected or repaired. 

Risk assessment and safety
-    Find all the possible hazards that include damaged equipment, electric shock or any other. 
-    Identify control measures that can reduce the risks.
-    Do check whether the power is isolated or not before you start working.
-    Arrange proper PPE such as safety boots and gloves. 

Tools and equipment
-    Select the correct tools and testing equipment for the job.
-    Check that all the tools are in good condition and safe to use.
-    Make sure equipment is available before starting. 

Work area preparation
-    Make sure that the area that is in use is organised, clean and safe.
-    Place warning signs wherever required.
-    Ensure that the workspace has enough space so that safe work can be implemented.

Time and resources
-    Before starting the work, plan how much time is required to complete the work.
-    Ensure that all the parts and materials are ready to use.

When you start working with a proper plan, it reduces mistakes, saves time and even helps in making sure that the work is done safely and efficiently. 

(Solved) P4 Obtain all the information they need for the safe removal and replacement of the equipment/system components.

Answer:

Before making a decision to replace or remove any electrical equipment, ensure that you have all the correct information related to it. As this will make sure that work is done accurately, without causing any damage to the system, and that too safely.

• Before starting the work, the person responsible for the work should first check all the manuals, diagrams, guidelines, wiring and maintenance instructions. As this will help them in understanding how the equipment will work, they will learn the correct steps for replacement and removal. If the workers start working without getting all these instructions, there is a high risk. 
  
  
• Another piece of information required is to understand the system’s layout, including how different components are connected. This will ensure that all the wrong parts are disconnected and any kind of faults in different parts of the system are prevented. Still, if there is anything unclear, the worker should ask a supervisor how things will be done, or simply refer to the company procedure. 
  
  
• All kinds of safety information must be obtained. This includes knowing how to safely isolate the power supply and understanding any risks involved, such as stored electrical energy or moving parts. Following the correct procedure helps in preventing accidents like electric shock or injury. 
  
  
• Finally, the worker should verify that the correct spare parts, such as size, type and rating, are required.

In summary, obtaining information before commencing work ensures that the job can be done safely, helps prevent mistakes and enables the maintenance job to be completed in a timely and accurate manner.

(Solved) P5 Obtain and prepare the appropriate tools and equipment.

Answer:

1. Selecting the Right Tools: The right tools and equipment need to be selected before beginning any electrical maintenance task. This may include hand tools such as screwdrivers and spanners, as well as electrical testing devices like multimeters. The equipment should be appropriate for the work being undertaken and the system involved.
   
   
2. Checking Tools and Equipment: After tools have been chosen, they need to be inspected. This involves checking for damage, wear and faults. For example, electrical tools need to be insulated, and testing equipment needs to be calibrated and within its due date to be accurate. It is important that any damaged or faulty tools are not used, since they can cause injuries or substandard work.
   
   
3. Preparing for the Task: The operator should also gather other necessary equipment, such as personal protective equipment (PPE), such as gloves and safety boots. The tools should be laid out to minimise the risk of distractions.

In short, choosing and preparing the right tools and equipment ensures the work will be performed safely, quickly and accurately. 

(Solved) P6 Apply appropriate maintenance diagnostic techniques and procedures.

Answer:

• Following Safe Procedures: For any diagnostic work, the system must be isolated first. This involves turning off the power supply and following company safety protocols. This is to avoid the risk of electric shock or injury.
  
  
• Using Diagnostic Techniques: There are many ways to detect faults in electrical systems. One is visual inspection, where the worker checks for visible problems like frayed cables, loose connections or burnt parts. Furthermore, test instruments, such as multimeters, can be used to measure electrical properties such as voltage, current and resistance.
  
  
• Systematic Fault Finding: It is important to follow a step-by-step approach when diagnosing faults. The technician should check how the system is operating against what is normally expected. This can prevent overcomplicated faults and repairs.
  
  
• Following Guidelines and Reporting Issues: Diagnostic repairs should be done according to company and manufacturer guidelines. Any issues that cannot be diagnosed or repaired should be reported to a supervisor rather than a guess.

(Solved) P7 Use the appropriate methods and techniques to remove and replace the required components.

Answer:

• Preparing for Removal: When removing components, the system must be safe. This means turning off the power and ensuring there is no residual energy. The worker should also be properly equipped with personal protective equipment (PPE), including gloves and safety footwear.
  
  
• Removing Components: The worker should use the appropriate tools and methods for removing components. Otherwise, they may damage the equipment or themselves. The worker should pay attention when taking the components out to ensure that screws or other small parts are kept in a safe place.
  
  
• Replacing Components: The worker then must replace the components. They should ensure the new component is the right size, type and rating for the system. The component should be installed securely and connected according to the wiring diagram or instructions.
  
  
• Final Checks: Once the component has been replaced, the worker needs to verify that all connections are secure and the system is free from tools and spare parts. The area should be neat, and the equipment should be ready to test or power up.

The proper techniques will ensure the maintenance is done safely, quickly and without damage to the equipment or system.

(Solved) P8 Carry out tests on the maintained equipment, in accordance with the test schedule/defined test procedures.

Answer:

Testing of maintained equipment, according to a test schedule or specific testing procedures, is an important part of ensuring it is safe and that it operates within manufacturer specifications. This ensures the maintenance was successful, no new defects were caused, and the equipment is safe to put back into use. 

Best Practice for Testing Maintained Equipment:

• Follow Safe Working Practices: Always follow safe working procedures, including safe isolation (electrical, mechanical, gas or fluids) of machines before testing. Wear personal protective equipment (PPE).
  
  
• Follow the Test Schedule: Refer to the manufacturer's maintenance instructions and the company's test schedule for the equipment to ensure all the correct parameters are tested.
  
  
• Visual Testing: Confirm the equipment is free from damage, leaks, wear, missing parts or excessive temperatures.
  
  
• Perform Operational Testing: Check the operation of the equipment, including start and stop, and the operation of emergency stop and protection devices.
  
  
• Check Performance: Test equipment performance, such as voltage, resistance, pressure, or rotational speed, to ensure it's operating within the original performance specifications.
  
  
• Record Results: Document the results of testing, including pass/fail and the date of the test, as required by the organisation.

(Solved) P9 Deal promptly and effectively with problems within their control, and seek help and guidance from the relevant people if they have problems that they cannot resolve.

Answer:

• Resolving Issues You Can Resolve: During electrical maintenance, issues can present themselves, such as a tool not functioning, a connection being loose, or a small part failing. Employees should quickly and cautiously handle problems they can solve. This could be re-tightening connections, replacing minor components or settings. This helps to avoid delays, damage and injury.
  
  
• Knowing Your Limits: Some issues need to be referred to a colleague or manager. The problem may be complex, or there may be problems with the system outside the worker's expertise. In this situation, it is important to know your limits and not guess, which may lead to a dangerous or damaging situation.
  
  
• Asking for Advice: If a problem cannot be solved, it is important to seek advice as soon as possible. Details of the problem, what has already been attempted, and any observed symptoms will help them provide the best advice. Safely and efficiently following company guidelines for dealing with problems ensures that they are handled correctly.
  
  
• Maintaining Safety and Efficiency: By effectively handling issues within our control, and knowing when to ask for support, maintenance work is done safely, efficiently and properly. It can help prevent accidents and ensure the electrical system's reliability.

(Solved) P10 Leave the work area in a safe and tidy condition on completion of the maintenance activities.

Answer:

Leaving the workplace in a clean, safe and tidy condition once you are done with the maintenance work is also important as this will help in preventing hazards, accidents, ensure operational efficiency and comply with safety regulations. This ensures that all the tools are stored, waste is removed, and equipment is isolated, protecting staff and equipment while fostering a professional, productive environment. Key aspects of leaving a safe and tidy area: 

• Hazard prevention: Removing debris and cleaning spills prevents slips, trips and falls. 
  
  
• Equipment security: Properly isolating machines (e.g, locking out, tagging out) prevents accidental start-ups and injuries. 
  
  
• Waste disposal: Correctly disposing of waste reduces risks to health and the environment. 
  
  
• Resource management: Returning tools to designated locations improves future productivity.
  
  
• Compliance and professionalism: Adhere to industry standards (like PUWER) and present a professional, respectful work environment. 

[Solved] K11. Outline the various fault location techniques that can be used, and how they are applied in your job. Such as half-split, input-to-output, function testing, unit substitution, and equipment self-diagnostics.

Answer:

Fault location methods are used to quickly locate faults in electrical equipment. Various techniques are used, depending on the nature of the fault and the system.

• Half-Split Technique: The system is split into two sections, and each section is tested to locate the fault. Then the faulty part is divided again, and the process is continued until the fault is located. This method is useful in large systems for time-saving.
  
  
• Input-to-Output Method: Here, the worker tests the system from the input (source of power) to the output. If the input is good but the output is not, the problem is somewhere in between. It's easy and is frequently used when troubleshooting electrical circuits.
  
  
• Function Testing: This technique involves testing whether each component is operating properly. If a component is not doing its job, it could be a defect.
  
  
• Unit Substitution: You can replace the suspected faulty component with a new one. If the system functions correctly, you know the component was faulty.
  
  
• Self-Diagnostics: Today's equipment may have diagnostic systems that indicate error codes. These help quickly identify faults.
  These can help reduce the time and effort needed to find faults safely. 

[Solved] K15: Outline the techniques used to dismantle/assemble electrical equipment. such as unplugging, desoldering, and removal of screwed, clamped, and crimped connections.

Answer:

Various techniques can be used for safely dismantling and assembling electrical equipment. When you use the correct method, it will help in preventing any kind of damage to components, and it will make sure that equipment is reassembled properly. 

• Unplugging connections: One of the most common and simplest methods is to unplug connectors. Unplugging connectors simply means disconnecting the plug from the socket or directly from the terminal without pulling out any other wires. Always make sure that you hold the body of the connectors rather than pulling the wire, as it will damage the cable.
• De-soldering and soldering: In some electrical systems, components are not loose; they are fixed using solder. So basically, desoldering means removing the melted solder. For melting the solder, you can use different tools like a soldering pump or an iron. When assembling all the components, soldering is used to connect all the components for making sure that the electrical connection is good.
• Removing screwed connections:  There are many components that are connected with screws. For removing or assembling them, a proper screwdriver must be used to remove and refit, as this will prevent any kind of damage to the heads of the screws. Screws should be kept in a safe place when they are removed so that they do not get lost.
• Clamped and crimped connections: Clamped connections are loosened with the help of tools so that wires and components can be released. Do remember that crimped connections always require special tools for removing or even for replacing connectors, so that no damage is caused. 

Using all these accurate dismantling and assembly techniques makes sure that the equipment stays reliable, safe, and easy to maintain. 

[Solved] K16 Describe the methods of removing and replacing cables and wires in wiring enclosures without causing damage to existing cables.

Such as checking cable routes, no pinching, cables can’t move, gaskets, etc…

Answer:

When replacing and removing cables in wiring enclosures, it becomes important that you follow careful methods that can be used for damaging components and existing cables so that you do not damage them. 

1. Checking cable routes: Before you remove any cable, make sure that you first understand how the cables are placed in the enclosure. This will help you in learning the complete layout and will make sure that you do not disturb any other connections. If you mark or put labels on the cables you are removing, it will help you in reinstalling them with ease and accuracy. 
   
   
2. Careful removal of cables: You can understand this point just by its name, here you need to make sure that whenever you remove cables, you remove them gently without forcing them. Check whether there are any clips, clamps, or ties holding cables. If you force any cable out or pull it roughly, it can damage internal wires or insulation. 
   
   
3. Avoiding pinching and damage: Remember, when you are installing new cables, it becomes important that you do not pinch them between any sharp edges or surfaces. As you might know, any damage to the insulation can lead to a short circuit and or any other safety hazards. So, to avoid such mistakes, make sure you position all cables with enough space. 
   
   
4. Securing cables properly: When you are done with installing all the wires and giving them enough space, do one more thing: secure cables with clips or ties so they do not move around freely and stay exactly where they should be. Loose cables can cause other damage, like someone falling after tripping over these wires, or they might even interfere with other components. 
   
   
5. Using gaskets and Protection: Gaskets and protective covers will help in preventing dust, moisture or any kind of damage, so make sure that you fit them correctly with cables. 

[Solved] K21 Identify the tools and equipment used in the maintenance activities. 

Such as the use of cable stripping tools, crimping tools, soldering irons and torches, and gland connecting tools.

Answer:

There are various tools and equipment used for the task of electrical maintenance. These are used for inspection, repair, testing and replacement.

• Hand Tools: Simple hand tools include screwdrivers, spanners, pliers and wire strippers. These are used for removing covers, making connections, cutting wires and assembly. It is important to select the right size and type of tool.
  
  
• Electrical Testing Equipment: Test equipment is used to test whether the system is working correctly. Examples include multimeters (which measure voltage, current and resistance), insulation testers and continuity testers. These can be used to detect faults and to confirm that the system is safe.
  
  
• Power Tools: There are some situations where power tools like electric drills or electric screwdrivers are used. These should be used with caution and must be tested before use.
  
  
• Specialised Tools and Equipment: Specialist tools may be needed, such as crimping tools for cables and soldering irons for circuits.
  
  
• Safety Equipment: It is important that safety equipment, such as insulated gloves and boots, is also used.

Having the right tools and equipment makes maintenance work safer, more accurate and faster.

[Solved] K22 Describe the methods of checking that components are fit for purpose, and the need to replace `lifed’ items.

Such as seals and gaskets, and overload protection devices.

Answer:

It is important to ensure components are suitable for use to ensure electrical equipment operates safely and effectively. Components need to be tested and checked before they are used or returned to service.

• Visual Inspection: This includes checking for signs of wear and tear, including cracks, burns, corrosion and worn components. If damaged, they should not be used again as they may malfunction.
  
  
• Functional and Electrical Testing: Multimeters and insulation testers can be used to test components. These can verify that the component is operating correctly and within the correct limits. If the values are not within the correct range, the component may not be good for use.
  
  
• Checking Specifications: The component needs to be the right type, size and rating for the application. If not, the component may not perform as required or could pose a risk.
  
  
• Replacing ‘Lifed’ Items: Some items, like seals and gaskets or batteries, are "lifed" items. These items are referred to as "lifed" components and should be replaced at a regular time, regardless of how they look.

Exchanging these items in a timely way prevents breakdowns, maintenance problems and ensures safe and efficient operation of the system.

[Solved] K23 How do you check that tools and equipment are free from damage or defects, and are in a safe and usable condition?

Answer:

It is important to visually check tools and equipment before using them for electrical maintenance.

• Visual Inspection: The first step is to perform a visual inspection. The person should inspect the tool for damage, including cracks, loose joints, worn insulation and damaged cables. Any tools with visible damage should not be used as they may result in injury or incorrect results.
  
  
• Functional Checks: Tools should be tested to ensure they're functioning properly. For instance, electrical test meters, such as multimeters, should switch on and provide reliable readings. If they do not behave normally, there may be a problem.
  
  
• Testing Insulation and Safety Guards: Tools using electricity should be adequately insulated against shock. Leads, casings and plugs need to be tightly fitted. They should have safety features such as guards.
  
  
• Calibration and Certification: Certain devices, such as testing equipment, should be calibrated. This ensures accurate results. This can be checked from a label or certificate.
  
  
• Taking Action: Damaged or broken equipment needs to be reported and removed from service.

This ensures tools are safe, fit for purpose and working properly.

[Solved] K27: Outline the problems that can occur during the electrical maintenance activity, and how they can be overcome.

Answer:

Many issues can arise during electrical maintenance that can impact safety, productivity and quality. It's essential to recognise these problems and respond accordingly.

Common Problems:

• For example, one problem is trouble pinpointing the fault, particularly in complex electrical systems. This might result in delays or improper fixes. Failing components can also occur due to wear or damage. There may also be insufficient tools or equipment needed to safely finish the job.
  
  
• There may also be risks, such as contact with energised lines, if proper isolation is not provided. Or there may be the use of wrong replacement components, leading to new faults. Confusion of instructions can also occur.

How to Overcome These Problems

• The above issues can be overcome with preparation. Using a systematic approach to fault-finding can identify problems. Having the right parts and tools ready before beginning the job eliminates wasted time.
  
  
• Risks can be minimised by locking out power sources and wearing PPE. Consulting manuals and seeking guidance can avoid mistakes.