FACULTY OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF ELECTRICAL TELECOMMUNICATIONS ENGINEERING COMPUTER CETG 420 INDUSTRIAL TRAINING REPORT Name: KARABO KWATA Student ID: 19000963 Program: Electrical and Electronics Engineering Training Period: 06 February 2023- 24 July 2023 Training Company: North Atlantic Engineering Consultants AND Contents ACKNOWLEDGEMENT ........................................................................................... 2 ABSTRACT ................................................................................................................. 3 CHAPTER 1 ............................................................................................................... 4 Background of North Atlantic Engineering Consultants ................................... 4 CHAPTER 2 ............................................................................................................... 6 Summary of Duties ................................................................................................. 6 CHAPTER 3: Working Experience ....................................................................... 23 PROJECTS CARRIED OUT .............................................................................. 24 SUPERVISORY WORKS ................................................................................... 32 PROBLEMS ENCOUNTERED ......................................................................... 32 PROBLEMS SOLVING PROCESS/APPROACH ........................................... 33 FEASIBLY PERMANENT/TEMPORARY SOLUTION ARRIVED AT AND REASONS ............................................................................................................. 33 CHAPTER 4 ............................................................................................................. 34 CONCLUSION ..................................................................................................... 34 RECOMMENDATIONS ..................................................................................... 34 REFERENCES ....................................................................................................... 35 1 ACKNOWLEDGEMENT Special thanks to God for providing the strength I needed to finish the report day and night. Additionally, I am required to express my sincere gratitude to everyone who helped my industrial attachment practices come to a successful conclusion, in particular, I want to thank site supervisors, who worked tirelessly to guide me through my period at North Atlantic Engineering Consultants. I deeply thank God Almighty for granting me this opportunity. 2 ABSTRACT Getting to comprehend what the industry of engineers consisted of, was a great platform to articulately apply the engineering concept, learned in a classroom setting in real life situation. My 24 weeks industrial programme was conducted at North Atlantic Engineering Consultants from the 06th February 2023 and completed on the 24th of July 2023 where I was mainly dealing with Building Service. This is one of the major requirements of every engineering course at BIUST which states that every undergraduate goes for industrial training. The core modules CETG 420 represent the industrial training. I have learned new things and hands on experience while applying the knowledge I have gained at BIUST. This report consist of the details of my industrial training, the problems encountered and the solutions that were brought forward to overcome the challenges. Everything I did helped me gain knowledge, technical, leadership, communication and personal skills. 3 CHAPTER 1 Background of North Atlantic Engineering Consultants North Atlantic Engineering Consultants is one of Botswana's leading practices of mechanical and electrical consulting engineers. The Gaborone office services a wide range of project types involving our mainstream electrical, HVAC (heating, ventilation and air conditioning), fire protection and wet services disciplines. Our in house expertise also provides specialist lighting design, thermal analysis and information technology services. The practice has been involved in the successful implementation of various sizes of infrastructural, industrial, institutional, commercial and residential projects. Our client portfolio includes private sector investors, government and international agencies. For all our projects, North Atlantic provide extensive guidance and cooperation in project management, quality control and contract administration to the principal agents; this role being traditionally handled by the project architect. Project teams regularly consulted us on our extensive knowledge and expertise in international contracts and construction law; the Department of Building and Engineering Services of the Ministry of Works and Transport, Government of Botswana recently involving us in the preparation of particular contract conditions for government projects 4 contracted out under the Federation International Des Ingenieurs‐Conseils (FIDIC) Form of Construction Contract. North Atlantic is currently seeking registration with the Public Procurement and Asset Disposal Board under the specialist fields of project and facilities management for building and infrastructure projects. North Atlantic, in keeping with our mission to be the foremost sustainable energy consulting engineering company in the region, has often freely offered to the relevant government departments' its expertise and services towards furthering Botswana's Vision 2016 for sustainability; through assistance to the Mechanical Engineering Department of the University of Botswana (UB ) in studies on Energy Efficiency in Buildings in Botswana; through participation in the Department of Energy - Energy Efficiency and Conservation Unit's Energy Efficiency Project (co‐financed by DANIDA) in the Building sector; through active membership of the Building Environment Design Technical Committee for the Botswana Bureau of Standards (BOBS), Government of Botswana; etc. The firm also specializes in pre‐investment studies, design, and contracts administration. The practice has been involved in the successful implementation of various sizes of infrastructural, industrial, institutional, commercial and residential projects. Our client portfolio includes private sector investors, government and international agencies. MISSION To be the foremost sustainable energy consulting engineering company in the region VISION sustainability; through assistance to the Mechanical Engineering Department of the University of Botswana (UB) in studies on Energy Efficiency in Buildings in Botswana; through participation in the Department of Energy - Energy Efficiency and Conservation Unit's Energy Efficiency Project (co‐financed by DANIDA) in the Building sector; through active membership of the Building Environment Design Technical Committee for the Botswana Bureau of Standards (BOBS), Government of Botswana 5 VALUES Accountability Teamwork Excellence Integrity CHAPTER 2 Summary of Duties BUILDING SERVICE DESIGN Collaborating with architects and other engineers to design electrical systems for buildings. Most of North Atlantic Engineering Consultants projects were on stage 3(drawing design stage) and construction stage for some projects when I arrived. Lighting design The value of Ufis obtained from photometric tables for a combination of various values of room indices and room surface reflectance. The room reflectance depend on the room surface finishes. = number of lamps in luminaire. Twin Fluorescent fittings mean =2 = Nominal lamp luminous flux. Luminous flux is simply energy, that is, the total amount of light energy radiated from a light source in all directions. It is measured in lumen. This parameter is used to describe the “brightness” of a light source. 6 People get confused between luminous flux and luminous intensity. Luminous intensity of a light source is the power of light; it is defined in a given direction and measured in candela. LIGHTING DESIGN Lighting could be: Interior lighting. - Within the house, an office, a restaurant as per specified task area. Outdoor lighting- Mainly for street lighting. ecurity lighting. Done on electric fences, floodlights, generally lights that serve as a measure against intrusion or criminal activities. Emergency lighting. - These are usually battery-backed lighting devices that switch on automatically when the building experiences a power outage. This is also part of the fire safety provision in emergency exit LIGHTING Lighting could be: Interior lighting. - Within the house, an office, a restaurant as per specified task area. Outdoor lighting- Mainly for street lighting. Security lighting. Done on electric fences, floodlights, generally lights that serve as a measure against intrusion or criminal activities. Emergency lighting. - These are usually battery-backed lighting devices that switch on automatically when the building experiences a power outage. This is also part of the fire safety provision in emergency exits 4.1 Considerations in Lighting Design The main objective in lighting design is to determine the number of light fittings (luminaires) required to achieve a recommended luminance for a given task area. In order to achieve this, the following factors need to be known: 7 Surface area of the working plane in. Recommended luminance (lux) in . Utilization factor. Maintenance factor of the luminaire. Nominal lamp luminous flux (output in lumens). Using the lumen method, sometimes referred to as the luminous flux method of calculation Considerations in Lighting Design The main objective in lighting design is to determine the number of light fittings (luminaires) required to achieve a recommended luminance for a given task area. In order to achieve this, the following factors need to be known: Surface area of the working plane . Recommended luminance (lux) . Utilization factor. Maintenance factor of the luminaire. Nominal lamp luminous flux (output in lumens). Using the lumen method, sometimes referred to as the luminous flux method of calculation Determined as: E(maintained) = (Φ • n • N • MF • UFs) / As Φ = initial bare lamp luminous flux (lumens) n = number of lamps per luminaire N = number of luminaires MF = Maintenance Factor UFs = Utilisation Factor for the reference surface S (depends on theluminaire) As = The area of reference surface S (m²) 8 Maintenance Factor (MF) The Maintenance Factor is the ratio of luminance provided by an installation at some stated time with respect to initial IL luminance; i.e.after 1000 hours of operation Light levels will be lower after 1000 hours for various reasons, such as: - Dirt build-up on the luminaire - Dirt build-up on room surfaces (affecting reflected light) - Lamp depreciation over time Utilisation Factor (UF) The Utilisation Factor is the proportion of luminous flux emitted bythe lamps in the luminaires which reaches the working plane After all the calculation are done we then use Auto Cad software to design. Type 5 luminaire 60W 9 Type 1 luminaire 9W Fire alarm and detection systems design Fire safety is a top priority in building design. Fire alarm and detection systems include smoke detector, heat detectors and notification devices that alert occupants and emergency responders in case of fire. When designing or installing fire alarm devices one should consider the following The minimum sound level of a sounder device should be 65dB(A) and not exceed 120dB(A) and the noise should last more than 30 seconds. Sounder device cabling should be arranged so that in the event of a fault at least one sounder located within the vicinity of the control and indicating pain will remain in operation A person searching a zone for a fire should not have to travel more than 60m from the zone of entrance to identify the source of the fire A person should not have to travel more than 45m along an escape route to reach a manual call point, when the layout of the building is known. Visual alarms such as beacons should always be mounted at minimum height of 2.1m from floor level, in a position that is likely to attract attention. Smoke detectors should be placed 5m to wall and 10m between them Heat detectors should be placed 3.5m to wall and 7m between them After understanding fire alarm and detection systems, I was given Orapa office buildings to design the fire alarm system for them using auto cad software Heat detector Smoke detector 10 Glass break Visual audio sounder Fire alarm panel control Designing of small power (power skirting, ring sockets, radial sockets, UPS sockets,) Small power systems in electrical engineering refer to the distribution of electrical power for general-purpose outlets, such as sockets, that are used to plug in various electronic devices and equipment in residential, commercial, and industrial buildings Ring Circuit. The ring starts at the consumer unit, visits each socket in turn and then returns to the consumer unit. The ring is fed from a fuse or a circuit breaker in the consumer unit. A ring circuit protected by a 30 A or 32 A device may well feed twenty socket outlets. This is because we can take one load to be approximately 300 W. Furthermore, not all the sockets will be in use at the same time. To ensure that a ring circuit is not overloaded: 1. Do not feed heavy and steady loads from the ring circuit, but make special provision for them on separate circuits such as an electric cookers. 2. Make sure that the ring circuit does not feed too great an area. This is usually ensured by limiting a single ring circuit to sockets within an area not greater than one hundred square meters. 3. Where there is more than one ring circuit in the same building, the installed sockets should be shared approximately evenly between them. 4. Cable sizes for standard socket ring circuits are as follows: i. PVC insulated cable 11 are 2.5 mm² for live (phase and neutral) conductors Radial Network. Here, the cable comes from the consumer unit and travels to each socket but ends at the last socket. Thus radial circuits can serve a smaller area. High powered appliances (cookers, showers) must have their own radial circuit. In the case of instant showers, a double pole switch has to be installed to control the switching on and off of the shower. Say for instance 20 A DP switch for a 4 kW instant shower. The limit for number of sockets in a radial circuit depend on the load characteristics of appliances. However the radial circuit should not exceed 50 m2. Using auto cad to design small power of socket outlets Power skirting 15A single radial socket 13A double UPS socket 13A double ring socket Stage 3 design (circuiting lighting system for) using auto cad 12 Wiring and circuit design play a crucial role in the development of electrical systems, ranging from residential buildings to industrial complexes. AutoCAD, a leading computer-aided design (CAD) software, provides powerful tools and features for creating accurate 2way 2gang switch and efficient wiring diagrams and circuit designs 1 way 1 gang switch Load calculations and Distribution board schedule for Riverside Hospital Load calculations are a critical aspect of electrical design, ensuring that the electrical system can meet the power demands of the facility. We were given a list of all equipment’s that will be used at the facility. 13 The DB schedule outlines the distribution of loads from the main power source to individual Distribution Boards within the facility. It specifies the type and rating of circuit breakers, the distribution of loads, and the arrangement of circuits. The schedule includes details of each circuit, such as the circuit number, description of the area served, load type (lighting, power, etc.), connected load, demand load, and the size and type of circuit breaker I did lighting and small power calculation by hand using the formula P=IV and later after understanding I was using excel to do all the calculation for DB schedule Populating the bill of quantities for small power, lighting protection, fire alarm system and containments (Riverside hospital) The Bill of Quantities (BOQ) provides a detailed breakdown of the estimated costs associated with the building services outlined above. It includes quantities, unit rates, and 14 total costs total costs for each item. I used excel to make the bill 15 Preparation of bill claims for contractors The contractor send their bill claim then we go to the site to assess all the work done before we pay them. We check work done on the following; Small power installations Lighting installations Fire alarm system installation Cable containment Wiring Lightning protection Distribution boards installation- A complete DB shall be complete with sheet steel enclosures, sub frames, bus bars, internal wiring, connection isolators, circuit breakers and blanking plates Lighting and small power has three stages of installation; 1. First fix- installation of pipes ,junction and back box 2. Second fix-is the wiring stage 3. Third fix-installation of sockets and luminaires 16 Bed head trunking design Medical Bedhead Trunking is an essential component of care delivery within the built environment. It is a containment system for essential medical gas, electrical and communication services for the patient. There are connected in ring circuits for emergency purpose so that when there is a faulty other side continues to provide essential. I was using Auto Cad to design the bed for medical ward and later was taken to Moshupa Primary Hospital to see the actual bedhead trunking. Bedhead requirement differ per ward 17 INSPECTIONS CARRIED OUT Inspection of Distribution Boards Distribution Board is a panel that houses electrical components, which separates an incoming electrical power feed into multiple secondary circuits. Inside a Distribution Board there are different electrical components serving different purpose, for example; circuit breaker which it is used to break the circuit whenever there is a fault. Distribution boards don't need to be locked; they must be safe. Only an electrical competent person may work on a distribution board. During the inspection of DB’s we found out that all the DB were installed perfectly, breakers connected to the correct load and also all the wires were correctly used for example 1.5mm^2 wire is for lighting 2mm^2 wire is for small power 4mm^2 wire is for fixed equipment 18 Inspection at Okavango Diamond Academy The Okavango Diamond Academy project was on construction stage. I was sent to site to inspect the following. Cable labelling- Properly labelling your network cables can be critical for a successful installation, as well as for your network in the long run. Using labelled cables helps prevent people from unplugging the wrong cable at the wrong time. Camera cables should not be labelled for security reasons Fire alarm and detection system- to check if the smoke and heat detectors are installed in their right place 19 UPS room- to check if the UPS room has a good air condition Inspection at DBGSS (visual inspections of floor boxes) Small power wiring is run through the underfloor trunking system in raised access floor areas terminating in sockets on the trunking lid. Floor boxes are then wired to the sockets mounted on the trunking this underfloor trunking by cable extensions and fly leads run through cable management system from the desk workstations or via cable containment under or above desks terminating into the outlets modules. 20 TEST CARRIED OUT Earth continuity test The test checks the resistance between the earth point on an appliance and distribution board. Low resistance means that in the event of a fault the current will flow to the earth point (safe) and not escape Steps 1. Before starting plug off all the appliance and made sure all the switches are off 2. We connected a long wire to the DB earth point and test lead at the end of the wire and the other to the multifunction tester 3. Adjust the multifunction tester to ohms 4. Take the lead and touch the socket screws, switch, tap, sink. Sometimes if there is no reading open the socket or switch and touch directly the back box, and also sometimes some taps will be coated then there will be no reading 5. If the resistance is low than 0.9 ohms then it means the earth connection is good 21 22 CHAPTER 3: Working Experience During my attachment, I was exposed to various tasks and responsibilities that provided me with a holistic understanding of electrical building services. Some of the key tasks I participated in included: Assisting senior engineers in electrical system design for new construction projects. Conducting site visits to assess electrical installations and identify potential improvements or issues. Collaborating with the design team to create electrical schematics and layout plans using computer-aided design (CAD) software. Assisting in the preparation of project proposals, cost estimates, and timelines for clients. Participating in electrical installation and maintenance projects, which involved hands-on work with electrical equipment and systems. Learning about energy-efficient technologies and their integration into building systems. Assisting in troubleshooting and diagnosing electrical faults and suggesting appropriate solutions. 23 Attending client meetings and site progress reviews to gain insights into project management and client communication. Every week, a day was scheduled to hold the meeting. The meeting was held to discuss about all matters or problems encountered when dealing with clients and give updates of individual projects to the Senior Engineer, also to see who are left behind or overloaded with projects so that they can get help from others. PROJECTS CARRIED OUT Designing small power, lighting for temporary accommodation building (Orapa) Scope Definition: The scope of the project involved designing and installing small power and lighting systems for a temporary accommodation building consisting of several rooms and common areas. Regulatory Compliance: Local electrical codes and regulations were thoroughly reviewed to ensure that the design and installation would meet all safety and legal requirements. Load Analysis: A detailed analysis of power requirements for lighting, appliances, and other electrical devices was conducted to determine the overall electrical load of the building. 3. Design Phase: Load Distribution: The electrical load was distributed among various rooms and areas based on their function and anticipated power usage. This helped in preventing overloading of circuits. 24 Circuit Design: Circuits were designed to handle specific loads, and circuit breakers were selected accordingly to provide protection in case of overcurrent situations. Lighting Design: Lighting layout was planned to ensure adequate illumination in all areas. Energy-efficient lighting fixtures such as LED lights were chosen to minimize power consumption. Switch and Outlet Placement: The placement of switches and power outlets was carefully considered to provide convenience and accessibility to occupants. Different types of luminaires Power skirt with 13A double socket, 13A double UPS socket and data plug TV points and switches’ Assessment at the DBGSS North Atlantic Engineering was appointed by De Beers group (DBGSS) to undertake assessment of existing Electrical services installations which includes lighting installation, socket outlets and data points provision at workstations, 25 Purpose DBGSS are currently occupying part of 1st2nd floor of DTCB including the entire 3rd Floor. The original function of third floor was for Diamond sorting operation for DTCB and socket outlets wiring was run through underfloor trunking system in raised access floor to terminate either in floor boxes or bench sockets to supply power to examination lights and workstations. However, with the increase of workstations and office equipment over time, provision of socket outlets and data points became inadequate resulting in overloading of circuits and tripping of power which is a health and safety hazard. It is on these grounds that this project has been initiated to address shortage of socket outlets and data points including compliance with design standards. Scope The scope of this commission includes. Visual inspections of floor boxes equipped with socket outlets and data provision for workstations Production of working & As built drawings Provision of Bills of Quantities and Cost estimate Observations and Condition of third floor DB The Distribution board is full and there is no available space for additional circuits. There was no legend card displayed to identify the various outgoing circuits, the corresponding circuit breaker numbers in the board, and the area where the circuit is taken to. This is also a non-compliance with wiring regulations Small power The provision of small power in the Building is generally by means of 1. Flush mounted floor boxes with 13A square double and single switched socket outlets,15Amp round red single switched socket outlets for UPS 26 2. flush mounted 13A square double and single switched socket outlets,15Amp round single on power skirting 3. flush mounted 13A square double and single switched socket outlets s,15Amp round single on wall Condition of small power systems Existing floor boxes are not aligned with the location of workstations as evidenced by the extensive use of multiple gang adaptors Recommendations It is proposed to re-wire the small power circuits in the floor boxes to accommodate and align with the proposed furniture layout and install additional circuits. After all the assessment was done I then used AutoCAD software to design for the small power (extra floor boxes and power skirting). Floor boxes 27 STAGE 3 DESIGN FOR RIVERSIDE HOSPITAL Upon my rival at North Atlantic Engineering consultants (NAEC) the Riverside Hospital project was already on stage 3 which is the drawing and designing stage. My contributions to the project were 1. Designing Power Distribution Schematic for River side hospital The distribution of electrical power within a building involves designing and installing systems that safely and efficiently deliver electricity to various outlets, equipment and systems. This includes switchgear, distribution panels and circuit. The design for power distribution starts at the Main LV switchboard. They were two Main LV switchboard and six sub main distributions board, the last one is the building distribution board. I was then taken to Moshupa Primary Hospital to have a visual of all the equipment and systems involved in power distribution. The Moshupa Primary Hospital had its own substation because it requires more power. The power comes from the BPC feeder pillar into the client feeder pillar rated 11kV From the client feeder pillar into the RMU. A Ring Main Unit (RMU) is a type of compact switchgear used in electricity distribution networks. Its primary function is to provide reliable and safe distribution of electrical power to 28 consumers. RMUs are often used in a ring configuration, where power can flow in both directions. This configuration enhances the reliability of the distribution system by enabling automatic reconfiguration in case of a fault. If one section of the ring becomes faulty, power can be rerouted through the other path, minimizing downtime and improving system availability. The voltage is still on 11kV The RMU then feed it to the step down transformer which then step it to 400V After the voltage is stepped down then it is distributed to the changeover panel which is also connected to the backup power supply and because it is a hospital there should not be any power blackout All the connections are connected to the main LV to distribute to different distribution boards. Designing general purpose (lighting and small power) The client send a list of all the types of luminaires will be used for each building. After I then I will be using the lumen method to determine the number of luminaires per building and also this building will be needing different light amount for example the amount of light at the ICU ward won’t be the same of that of the maternity ward After all the calculation are done using excel then I will hand it over to my supervisor to use Deluxe software to locate all the right places for the luminaires We then use auto cad software to design the lights and socket Distribution board schedule After designing I used excel to do load calculations for the distribution board schedule, also known as a distribution board circuit schedule, is a document used in electrical design and installation projects. It provides a detailed breakdown of the circuits and components connected to a distribution board (also known as a breaker panel or fuse box). This schedule is an essential reference for electricians, engineers, and maintenance personnel to understand the distribution of circuits within a building or facility. Here's what a typical distribution board schedule includes. The DB schedule is important because 29 It gives a brief description of the purpose or area served by the circuit (e.g., lighting, kitchen outlets, HVAC, etc.). The rated current capacity (in amperes) of the circuit breaker or fuse protecting the circuit. Indication of whether the circuit is for lighting, power outlets, specialized equipment, etc. The estimated or calculated load (in watts or amperes) that the circuit is expected to carry. This helps in load analysis and distribution planning The number of power outlets, lighting fixtures, or other electrical devices connected to the circuit. Distribution board schedules are typically created using computer-aided design (CAD) software, electrical design software, or even spreadsheet programs. They are usually included in the electrical design documentation and serve as a guide during installation, troubleshooting, maintenance, and future modifications. It's important to note that the specific format and details included in a distribution board schedule may vary based on local electrical codes, project requirements, and the preferences of the designers and engineers involved. Circuiting lighting system for different wards Circuiting a lighting system using Computer-Aided Design (CAD) software involves creating a visual representation of the electrical circuits and components within the lighting system. CAD software allows you to design, plan, and document the layout of lighting fixtures, switches, and wiring in a digital format. Here's a step-by-step guide on how to circuit a lighting system using CAD Place switches on the floor plan where they control the lighting fixtures. Indicate the type of switch and its corresponding fixtures. Draw lines or pathways to represent the wiring routes from the fixtures to the switches and then to the distribution panel Add text annotations and labels to identify each fixture, switch, circuit, and other components. Provide necessary information such as circuit load, breaker size, and other relevant details 30 Include a legend that explains the symbols, abbreviations, and annotations used in the lighting plan. This ensures clear communication when sharing the plan with the contractor Connecting wires 31 SUPERVISORY WORKS I was sent with the electrician to supervisor on the assessment of the existing electrical systems within the building, including distribution panels, wiring, lighting fixtures, and emergency systems. Conducted tests and measurements to evaluate the performance and efficiency of electrical components. Identified potential areas for improvement in energy consumption and electrical load distribution. To inspect if the location of where driver unit installed matches of the drawing and also the number sockets installed matches the on the documents PROBLEMS ENCOUNTERED Unlabelled cables and distribution board breakers Unlabelled cables and distribution board breakers is one of the problems we had at North Atlantic Engineering Consultants. When cables are not labelled, workers may mistakenly cut or disconnect the wrong ones, which can be quite dangerous. Cutting through a wire that someone thought was not connected because it was traced improperly, for example, could result in electrocution. Unplugging a 32 ground. Also it was difficult to identify which equipment is connected to a certain breaker due to not labelling them. Overloading We found UPS at the ODS overloaded with loads so it had some malfunctions and it started shutting off on its own. Cable faults During the inspection carried out at village plots we found some cables that has faults that can cause fire and safety hazards to children. . PROBLEMS SOLVING PROCESS/APPROACH Weekly site visit: We visited our site every Friday to check for progress and to give the contracts new updates from the clients and architecture. Weekly meeting: we held meeting every Monday so that everyone can give progress of his/her project and to see which one among us is left behind so that she/he can be helped to catch up FEASIBLY PERMANENT/TEMPORARY SOLUTION ARRIVED AT AND REASONS Each construction company was recommended to label their cables for example for fire was advised to use red tags, data and voice to use grey and lighting yellow. So that when there is a fault on fire cables the maintenance team can be able to identify the fire cables without any struggle and also for the distribution board breakers for easy identify which breaker is for lighting, small power and HVAC. All the loads and extra loads were recalculated and found out that an extra UPS is required It was recommended that each and every 5 years regular inspection should be carried and replacement of worn wires. 33 CHAPTER 4 CONCLUSION In conclusion, I found that the field attachment was very beneficial because it allowed me to apply the theory I had learned in school to a variety of tasks and projects. I made progress in a number of areas, including communication, interpersonal skills, problemsolving, listening, and presentation abilities, to name a few. I took part in engineering projects that taught how to design electrical building service using auto cad software. RECOMMENDATIONS I recommend that we should do attachment maybe for three months in one company then swap unlike doing the whole six months in one company and this will help us as student to have different experience about different companies. 34 REFERENCES [1]Marchant, E. (1970, March). Electrical services in buildings. 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Smart Distribution Boards (Smart DB), Non-Intrusive Load Monitoring (NILM) for Load Device Appliance Signature Identification and Smart Sockets for Grid Demand Management. Sensors, 20(10), 2900. https://doi.org/10.3390/s20102900 35