TRADE PROJECT
PROJECT TITLE: AGRICULTURAL MACHINERY ASSEMBEMBLY FACTORY
PRESENTED BY: MUNGAI RAPHAEL MUKIRI
INDEX NO:
5521050257
CENTER CODE: 552105
INSITUTION:
RIFT VALLEY NATIONAL POLYTECHNIC
DEPARTMENT:
ELECTRICAL AND ELECTRONIC ENGINEERING
COURSE:
CRAFT IN ELECTRICAL AND ELECTRONIC ENGINEERING
(POWER OPTION)
SUPERVISOR:
MR. NDUNG’U
PAPER NO:
1601/207A
PRESENTED TO: KENYA NATIONALEXAMINATION COUNCIL IN PARTIAL
FULFILLMENT FOR THE AWARD OF CRAFT CERTIFICATE
IN ELECTRICAL AND ELECTRONIC ENGINEERING
(POWER OPTION)
EXAM SERIES:
MARCH 2025
Contents
CHAPTER ONE ......................................................................................................................................... 7
1.0 INTRODUCTION ............................................................................................................................ 7
1.1 OBJECTIVES ................................................................................................................................... 7
1.2 IEE REGULATIONS ......................................................................................................................... 7
1.3 TYPES OF WIRING SYSTEM ........................................................................................................... 7
1.4 TYPE OF SWITCH ........................................................................................................................... 7
1.5 CABLE SIZING ................................................................................................................................ 7
1.6 PROTECTION DEVICES .................................................................................................................. 8
CHAPTER TWO ........................................................................................................................................ 9
2.0 THEORY AND BACKGROUND ......................................................................................................... 9
2.1 LIGHTING DESIGN...................................................................................................................... 9
2.2 AGRICULTURAL MACHINERY ASSEMBLY FACTORY LIGHTING DESIGN ..................................... 9
2.3 ILLUMINANCE RECOMMENDATIONS ........................................................................................ 9
2.4 IEE REGULATIONS FOR SOCKET OUTLETS ................................................................................. 9
2.5 TYPE OF WIRING........................................................................................................................ 9
2.6 TYPE OF SOCKET OUTLETS ........................................................................................................ 9
2.7 CABLE SIZING........................................................................................................................... 10
2.8 PROTECTIVE DEVICES .............................................................................................................. 10
2.9 LIGHT SOURCES ....................................................................................................................... 10
CHAPTER THREE .................................................................................................................................... 11
3.0 PROJECT WORK AND IMPLEMENTATION ................................................................................... 11
3.1 SITE LOCATION ........................................................................................................................ 11
3.2 SITE PLAN AND INTRODUCTION.............................................................................................. 11
3.3 MAIN SWITCH, DISTRIBUTION BOARD, AND CONSUMER CONTROL UNIT............................. 11
3.4 CABLE SIZING........................................................................................................................... 11
3.5 PROTECTIVE DEVICES .............................................................................................................. 11
CHAPTER FOUR ..................................................................................................................................... 12
4.0 INSTALLATION ............................................................................................................................. 12
4.1 PLANNING AND INTERPRETATION OF SPECIFICATIONS ......................................................... 12
Lighting Requirements for Different Areas ................................................................................... 12
4.2 CALCULATION OF LIGHTING IN GROUND FLOOR ................................................................... 13
4.4 CALCULATION OF TOILETS ...................................................................................................... 14
4.5 CALCULATION OF SWITCH ROOM ........................................................................................... 14
4.7 CALCULATION OF KITCHEN POWER ........................................................................................ 14
4.8 CALCULATION OF MACHINE AND SHOP POWER .................................................................... 15
4.6 WIRING SYSTEM ...................................................................................................................... 16
CABLE SIZING................................................................................................................................. 16
DISTRIBUTION BOARD................................................................................................................... 16
SWITCHBOARD .............................................................................................................................. 16
5.0 SHORT CIRCUIT PROTECTION ...................................................................................................... 16
5.1 PROTECTION SYSTEM EQUIPMENT ......................................................................................... 17
5.2 OVERLOAD PROTECTION......................................................................................................... 17
5.3 COMMERCIAL BACKUP DIESEL POWER GENERATOR ............................................................. 17
5.4 ELECTRICAL MATERIAL AND BRAND SELECTION..................................................................... 17
DEDICATION
This research is the my original work of MUNGAI RAPHAEL MUKIRI, affirm that it has
not been submitted for certification at any other institution.Any form of reproduction or
duplication of this trade project is strictly prohibited without prior permission from the author
or Rift Valley National Polytechnic.
Students Name: MUNGAI RAPHAEL MUKIRI
Index Number: 5521050257
Sign: ………………………………………….
Supervisor’s name: Mr. Ndung’u
Sign: ……………………………………………….
Date: ……………………………………………….
ACKNOWLEDGEMENT
I am profoundly grateful to God for His guidance and for granting me the opportunity to be
part of this esteemed institution. I sincerely appreciate Rift Valley National Polytechnic for
providing a conducive learning environment and for supporting my aspiration to become an
Electrical and Electronics Engineer.
I extend my deepest gratitude to my lecturers and project supervisor, Mr. Ndung’u, whose
expertise, mentorship, and encouragement have been invaluable throughout this journey.
Their guidance has played a crucial role in my academic and professional growth.
Lastly, I express my heartfelt appreciation to my parents and friends for their unwavering
support, motivation, and assistance. Their encouragement has been instrumental in the
successful completion of this project.
DEDICATION
I dedicate this project to everyone who contributed to its successful completion. I am
especially grateful to my parents for their financial, moral, and spiritual support throughout
this journey.
Additionally, I extend my sincere appreciation to my supervisor, Mr. Ndung’u, for his
invaluable guidance, insightful advice, and constructive feedback during the development of
this project. May God bless them abundantly.
ABSTRACT
The design and management of electrical lighting installations require engineers to make
informed and complex decisions, particularly in multi-room buildings with various
appliances and unique electrical demands. This project applies modern electrical lighting
installation techniques, emphasizing critical decision-making areas that necessitate careful
planning and visualization of illumination levels. The primary objective of this project is to
design the electrical layout for the Agricultural Machinery Assembly Factory, which
consists of a ground floor. The main electrical power supply is sourced from the national
grid. To determine the appropriate size and number of backup generators, the final circuits for
lighting and power sockets are designed first. The lighting design follows the lumen method,
ensuring that room sizes and intended uses are considered for optimal illumination.
The power distribution system is structured based on user requirements, with final circuits
supplied through a consumer unit and balanced across a single-phase distribution system:
314A on the red phase, 330A on the yellow phase, and 340A on the blue phase. This phase
balancing enhances efficiency by optimizing cable and distribution equipment usage. The
building's total electrical load is 365.75 KVA, supported by a 480 KVA backup generator,
strategically placed within the compound for secure operation. To enhance system reliability
and safety, miniature circuit breakers (MCBs) and melded case circuit breakers (MCCBs)
provide protection against overloads and short circuits, ensuring that only the affected circuit.
CHAPTER ONE
1.0 INTRODUCTION
1.1 OBJECTIVES
The primary objective of this project is to design the electrical services for a proposed school
dispensary. To achieve this, the project is structured into several interconnected sections,
each addressing a key aspect of the electrical system. The critical areas covered in this project
include:






Lighting design
Power point layout design
Cable sizing
Power backup system
Discrimination and coordination systems
Power factor correction
1.2 IEE REGULATIONS
The electrical installation adheres to the IEE (Institution of Electrical Engineers)
Regulations, ensuring safety and compliance. The key regulations observed in this project
include:



All lamp holders, switches, and fuses must be connected in live conductors.
Proper earthing must be provided for all lamp holders.
All switches should be installed at an accessible height of 2.4 meters for ease of
operation.
1.3 TYPES OF WIRING SYSTEM
The selected wiring system consists of PVC conduit (20mm²), installed at a height of 7 feet,
with circular boxes incorporated for connections.
1.4 TYPE OF SWITCH
The switches used in this project are UN switches rated at 5A, 240V.
It is essential to ensure that:


The switch is not subjected to currents exceeding its rated capacity.
The voltage across the switch contacts does not surpass the maximum rated voltage.
1.5 CABLE SIZING
Cable sizing is determined based on:


The current-carrying capacity required for the electrical load.
The length of the cable run, considering voltage drop and efficiency.
1.6 PROTECTION DEVICES
To ensure safety and prevent electrical faults, the system incorporates protective devices such
as:


Miniature Circuit Breakers (MCBs) – to protect against overcurrent and short
circuits.
Earth Leakage Circuit Breakers (ELCBs) – to prevent electric shock hazards by
detecting leakage currents.
This structured approach ensures a safe, efficient, and reliable electrical installation for the
proposed AGRICULTURAL MACHINERY ASSEMBEMBLY FACTORY.
CHAPTER TWO
2.0 THEORY AND BACKGROUND
2.1 LIGHTING DESIGN
This section covers the literature reviewed for the purpose of lighting design within the scope
of the project.
2.2 AGRICULTURAL MACHINERY ASSEMBLY FACTORY LIGHTING DESIGN
The lighting system for this project consists of artificial lighting, which relies on electrical
light sources to produce illumination levels similar to natural daylight. This system is
designed for both interior and exterior spaces, ensuring optimal visibility and functionality.
2.3 ILLUMINANCE RECOMMENDATIONS
General recommendations based on visual task studies suggest that appropriate luminance
levels should be maintained depending on the type of task. These recommendations ensure
good contrast and sufficient lighting.
Additionally, the Chartered Institute of Building Service Engineers has published standard
luminance recommendations in the 2006 lighting code.
2.4 IEE REGULATIONS FOR SOCKET OUTLETS



All sockets should be earthed.
Socket outlets must include protective devices such as fuses and circuit breakers.
Socket outlets should be mounted at an appropriate height, typically 40–50 cm above
the floor.
2.5 TYPE OF WIRING
The chosen wiring types for this project include PVC and conduit wiring:


Conduit wiring is used in areas with machinery.
PVC wiring is used in receiving areas.
2.6 TYPE OF SOCKET OUTLETS
The selected socket outlets are twin sockets with built-in fuses, sourced from Power Max
Company.
2.7 CABLE SIZING



Receiving and dispatch areas: Rated 13-15 amps, twin with earth, sheathed, 2.5mm
cable.
Socket outlets: Rated 20-25 amps, 4mm armored cable, single-phase loads.
Three-phase loads: 12mm armored cable from East Africa Cables.
2.8 PROTECTIVE DEVICES


Receiving and dispatch areas: Socket outlets protected with 15A, 240V single-phase
devices.
Machine socket outlets: Rated at 25A, 240V.
2.9 LIGHT SOURCES
Discharge lamps produce light through a process where gases are heated within a controlled
environment in the lamp. This occurs by applying voltage between two electrodes located in
a discharge tube filled with inert gases or metal vapors. A current flows between the
electrodes, exciting gas atoms, which then radiate light when electrons reach sufficient speed.
CHAPTER THREE
3.0 PROJECT WORK AND IMPLEMENTATION
This chapter outlines the scope of work carried out for the electrical service design of a
proposed Agricultural Machinery Assembly Factory. The dispensary is located in Nakuru
County, Kenya. Since the site is connected to the national power grid, there are no concerns
regarding mains connectivity and power supply reliability.
3.1 SITE LOCATION
The proposed Agricultural Machinery Assembly Factory site has reliable access to the
national power grid and mains connectivity, ensuring a stable and uninterrupted power
supply.
3.2 SITE PLAN AND INTRODUCTION
The project plan consists of multiple rooms. The architectural floor plan is used to develop
an appropriate lighting scheme, incorporating lighting fittings and power point layout
designs for each room.
A schedule of lighting symbols and luminaries is used in the lighting fittings design, while
the power point layout design is detailed in an appendix to aid in understanding this project.
3.3 MAIN SWITCH, DISTRIBUTION BOARD, AND CONSUMER CONTROL UNIT


All Distribution Boards (DBs), Consumer Control Units (CCUs), and the main switch
must be properly earthed.
Protective devices, including circuit breakers, fuses, and cut-outs, should be installed
in all these components.
3.4 CABLE SIZING


The consumer control unit is fitted with a 6.0mm², 240V cable.
The distribution board is equipped with a 64mm², 415V cable, accompanied by a
cut-out and a 3-separate neutral system.
3.5 PROTECTIVE DEVICES



Protective devices should include 100A, 3-phase cut-outs.
The main switch should have 60-80A protection with a 3-phase cut-out.
The fuse CCU should be equipped with a 32A circuit breaker.
CHAPTER FOUR
4.0 INSTALLATION
Electrical installations, especially lighting, must comply with all applicable international
standards and regulations, including local requirements. Adherence to both stationary and
non-stationary regulations is essential to ensure compliance with the law.
4.1 PLANNING AND INTERPRETATION OF SPECIFICATIONS
The following table outlines the lighting specifications for different rooms and areas within
the facility, including their dimensions, area, illumination levels, and glare values.
Lighting Requirements for Different Areas
GROUND FLOOR
Area
Length (m) Width (m) Area (m²) Illumination (lux) Glare
Engine Testing Room
6.0
8.0
48
550
20
Assembly Area
6.5
7.0
45.5
800
18
Machine Room
6.0
7.5
45
1100
19
Receiving & Dispatch Area
5.5
7.5
41.25
250
17
Degreasing Room
3.5
6.0
21.0
350
19
Chemical Laboratory
3.5
6.0
21.0
600
18
Sterile Area
3.5
6.0
21.0
550
19
First Aid Room
3.5
5.5
19.25
400-600
18
Fuel Store
3.5
5.5
19.25
120-180
20
Quality Control & Final Inspection 3.5
5.5
19.25
950
19
Conference Room
6.0
7.5
45
350-550
20
Works Manager's Office
3.0
5.5
16.5
320
19
General Office
3.0
5.0
15
320
19
Enquiry Office
3.0
5.0
15
320
19
Records Office
3.0
5.0
15
320
18
Typist Office
3.0
5.0
15
320
18
Corridors
6.0
7.5
45
180
17
Area
Length (m) Width (m) Area (m²) Illumination (lux) Glare
Parking Area
6.0
7.5
45
15-60
22
Toilet
3.0
3.0
9.0
120-250
16
Switch Room
3.0
5.0
15.0
220-350
19
FIRST FLOOR
Area
Length (m) Width (m) Area (m²) Illumination (lux) Glare
Kitchen & Canteen
4.5
6.5
29.25
550
21
Secretary, Accounts & Security
3.5
5.5
19.25
320
19
Dark Room, Projector & Audio Visual 4.0
6.5
26.0
60
16
Drawing Office
6.5
26.0
1050
19
4.0
Lighting and Power Calculations
4.2 CALCULATION OF LIGHTING IN GROUND FLOOR
Engine Testing Room


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
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Illumination required: 500 lux
Limiting glare: 19
Room dimensions: 6.0 x 7.5
Area: 45
Room Index Calculation:
Room index = 6.0×7.5(6.0+7.5)×2.25\frac{6.0 \times 7.5}{(6.0 + 7.5) \times 2.25}
=4530.375=1.48= \frac{45}{30.375} = 1.48
Reflectance & Color:
o
o
o

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
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


Ceiling: 0.7 (White)
Wall: 0.5 (Glossy Yellow)
Floor: 0.14 (Black Terrazzo Finish)
Chosen Fitting: Double cat no FCLV 158
Rating: 2 x 58 wall
Chosen Tube: White 5800 lum, Length 1500
Utilization Factor: 0.8
Assumed Maintenance Factor: 0.239
Installed Flux Calculation:
45×500(0.8×0.239×0.8)\frac{45 \times 500}{(0.8 \times 0.239 \times 0.8)}
=450000.15296=294140.7= \frac{45000}{0.15296} = 294140.7 lumens
No. of Lamps Required:
294140.73200=91.92≈92\frac{294140.7}{3200} = 91.92 \approx 92 fittings
Assembly Area




Illumination required: 750 lux
Room Index Calculation: Same as above (1.48)
Installed Flux Calculation:
45×7500.15296=441211\frac{45 \times 750}{0.15296} = 441211 lumens
No. of Lamps Required:
4412113200=137.88≈138\frac{441211}{3200} = 137.88 \approx 138 fittings
Machine Room



Illumination required: 1000 lux
Installed Flux Calculation:
45×10000.15296=588281.4\frac{45 \times 1000}{0.15296} = 588281.4 lumens
No. of Lamps Required:
588281.43200=183.83≈184\frac{588281.4}{3200} = 183.83 \approx 184 fittings
4.4 CALCULATION OF TOILETS
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Illumination required: 100-200 lux
Limiting glare: 16
Room dimensions: 3.0 x 3.0
Area: 6.0
Room Index Calculation:
3.0×3.0(3.0+3.0)×2.25=0.67\frac{3.0 \times 3.0}{(3.0 + 3.0) \times 2.25} = 0.67
Installed Flux Calculation:
6×1500.15296=5885.2\frac{6 \times 150}{0.15296} = 5885.2 lumens
No. of Lamps Required:
5885.23200=1.84≈2\frac{5885.2}{3200} = 1.84 \approx 2 fittings
4.5 CALCULATION OF SWITCH ROOM

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Illumination required: 200-300 lux
Limiting glare: 19
Room dimensions: 3.0 x 5.0
Area: 15.0
Room Index Calculation:
3.0×5.0(3.0+5.0)×2.25=0.83\frac{3.0 \times 5.0}{(3.0 + 5.0) \times 2.25} = 0.83
Installed Flux Calculation:
15×2500.15296=24516.8\frac{15 \times 250}{0.15296} = 24516.8 lumens
No. of Lamps Required:
24516.83200=7.67≈8\frac{24516.8}{3200} = 7.67 \approx 8 fittings
4.7 CALCULATION OF KITCHEN POWER
Equipment
Voltage (V) Power (kW) Power Factor Phase Current (A)
Potato Peeler
240
3
0.86
1Φ
14.54
Slicer
240
1.5
0.87
1Φ
7.18
Equipment
Voltage (V) Power (kW) Power Factor Phase Current (A)
Mixer
240
3
0.87
1Φ
14.37
Electric Cooker
415
10
1
3Φ
13.92
Electric Frier
240
3
1
1Φ
12.5
Coffee Percolator 240
3
1
1Φ
12.5
Fridge
3
0.87
1Φ
14.37
240
4.8 CALCULATION OF MACHINE AND SHOP POWER
Equipment
Milling Machine
Voltage (V) Power (kW) Power Factor Phase Apparent Power (kVA)
1.5
0.87
1Φ
1.72
Cylinder Head Grinder 415
2
0.86
3Φ
2.33
Drilling Machine
240
2
0.87
1Φ
2.30
Lathe Machine
415
6
0.86
3Φ
6.98

240
Total Power Calculation:
o Total Real Power (P): 1.5 + 2 + 2 + 6 = 11.5 kW
o Total Apparent Power (S): 1.72 + 2.30 + 2.33 + 6.98 = 13.33 kVA
This document ensures accurate lighting and power calculations for each section of the
facility while maintaining proper illumination levels and adhering to safety regulations.
CHAPTER FIVE
4.6 WIRING SYSTEM
The wiring system is designed to meet the specific requirements of various consumer units.
To ensure safety and durability, underground armored polyvinyl chloride (PVC) insulated
cables are used for external wiring. These cables provide superior protection against
mechanical damage, with an additional armor layer reinforcing the insulation along their
entire length.
CABLE SIZING
Selecting the appropriate cable size is critical for ensuring optimal performance and
efficiency. This selection is based on the required current-carrying capacity and the total
cable length, considering recommended ampacity values and permissible voltage drop limits.
For this project, cables will be sourced from East African Cables, specifically rated SA, 240V
twin with earth, with a cross-sectional area of 1.5mm².
DISTRIBUTION BOARD
The distribution board for the Agricultural Machinery Assembly Factory is designed to
ensure efficient and reliable power distribution across all machinery and equipment. It is
strategically structured to accommodate high-power demands while maintaining operational
safety and efficiency. Key considerations include:




Load Management: Proper power allocation to prevent overloading and ensure smooth
operation.
Circuit Protection: Integration of circuit breakers and protective devices to safeguard against
electrical faults and surges.
Scalability: Designed for future expansion as the factory grows and new machinery is
introduced.
Compliance: Adheres to industrial electrical standards and safety regulations to enhance
reliability and worker safety.
This system will provide a stable and efficient power supply, ensuring uninterrupted
operations in the agricultural machinery assembly process.
SWITCHBOARD
A cubical switchboard is implemented to facilitate seamless future expansion of the
distribution network. By incorporating bus bars within the cubical enclosure, the system
allows for increased load capacity without major structural modifications, ensuring
adaptability and efficiency in power distribution.
5.0 SHORT CIRCUIT PROTECTION
A short circuit occurs when a fault results in negligible impedance within a live conductor,
creating a sudden potential difference under normal operating conditions. To mitigate such
risks, proper cable protection strategies must be implemented, leveraging adiabatic equations
to calculate and control short-circuit currents effectively.
5.1 PROTECTION SYSTEM EQUIPMENT
Molded Case Circuit Breakers (MCCBs) play a crucial role in electrical protection by
integrating built-in safety mechanisms for circuits with high current ratings. These breakers
function as standard load switches while also detecting and disconnecting excessive
overloads and short circuits to prevent equipment damage. Additionally, they provide realtime operational status, indicating whether the Miniature Circuit Breaker (MCB) is open,
closed, or tripped. These protective devices are essential components of distribution boards
and switchboards, ensuring electrical safety and system reliability.
5.2 OVERLOAD PROTECTION
An overload occurs when excessive power demand arises in an otherwise functional circuit,
often due to multiple machines operating simultaneously, faulty agricultural appliances, or
motors experiencing mechanical issues. Without proper protection, an overload can cause
excessive heat buildup, potentially damaging equipment and electrical components. To
mitigate these risks, protective devices must be installed to interrupt overload currents before
they reach dangerous levels. The IEE wiring regulations outline the required current ratings
for effective coordination between cables and protective devices, ensuring operational safety
and equipment longevity in the agricultural machinery assembly factory.
5.3 COMMERCIAL BACKUP DIESEL POWER GENERATOR
Diesel power generators are ideal for continuous operation in industrial settings requiring
high load ratings. In an agricultural machinery assembly facility, a backup diesel generator
ensures uninterrupted operations during power outages, preventing disruptions to production
and assembly lines. The use of hooded diesel generators is increasingly preferred due to their
low noise emissions, reducing workplace disturbances while maintaining environmental
compliance by minimizing pollution. These generators provide a reliable and stable power
source for critical machinery and processes.
5.4 ELECTRICAL MATERIAL AND BRAND SELECTION
To ensure quality, durability, and availability, high-standard electrical materials are selected
from reputable suppliers in Kenya such as Chandaria Industries, Power Max, Schneider
Electric Kenya, and East African Cables. Below is a categorized list of essential electrical
materials and recommended brands:
1. Power Supply & Distribution





Main Distribution Board (MDB): Schneider Electric Kenya, ABB, Siemens
Sub-Distribution Boards: Legrand Kenya, Hager, Schneider Electric Kenya
Step-Down Transformers: ABB, Siemens, East African Cables
Uninterruptible Power Supply (UPS): APC Kenya, Eaton, Vertiv
Automatic Voltage Regulators (AVR): Sollatek, Power Max, Bluebird
2. Lighting System

High Bay LED Lights (Assembly & Machine Rooms): Philips Kenya, Osram, Cree




LED Panel Lights (Offices & Laboratories): Havells, Bajaj, Panasonic
Explosion-Proof Lights (Fuel Store & Chemical Lab): ABB, Raytec, Chalmit Lighting
Emergency Exit & Safety Lights: Legrand, Schneider Electric, Megalite
Motion Sensor Lights (Corridors & Storage Rooms): Lutron, Honeywell, Philips Kenya
3. Wiring & Cabling



Industrial Armoured Cables (XLPE & PVC Insulated): East African Cables, Nexans, Polycab
Control Cables (Machinery & Automation): KPLC, Lapp Kabel, Belden
Flexible Conduits & Cable Trays: Legrand Kenya, Schneider Electric Kenya
4. Sockets & Switches



Industrial Power Sockets (3-pin & 5-pin, Heavy Duty): PowerMax Kenya, MK Electric,
Schneider Electric Kenya
Heavy-Duty Switches (High-Powered Machinery): Siemens, ABB, Leviton
Isolator Switches (Safety Shutdowns): Havells Kenya, ABB, Schneider Electric Kenya
5. Safety & Security Systems




Circuit Breakers (MCB/MCCB/RCB/ELCB): Schneider Electric Kenya, Siemens, ABB
Industrial Surge Protection Devices (SPD): Eaton Kenya, Legrand Kenya, Tripp Lite
Fire Alarm System & Smoke Detectors: Honeywell Kenya, Bosch Kenya, Notifier
CCTV Surveillance & Access Control Systems: Hikvision Kenya, Dahua Kenya, Axis
Communications
6. Motor Control & Automation



Motor Starters & Soft Starters: Schneider Electric Kenya, ABB, Siemens
Variable Frequency Drives (VFDs) for Motor Speed Control: Danfoss, Allen-Bradley,
Mitsubishi
Programmable Logic Controllers (PLC) for Automation: Siemens Kenya, Omron, Rockwell
Automation
7. Special Equipment for Specific Areas




Chemical Laboratory: Explosion-proof switches & sockets (ABB, Legrand Kenya)
Sterile Area: Anti-static lighting fixtures (Philips Kenya, Osram)
First Aid Room: Emergency power backup & alarms (Eaton Kenya, APC Kenya)
Dark Room (Projector & Audio-Visual): Low-luminance dimmers & LED lights (Lutron, Philips
Kenya)
This structured and comprehensive selection ensures that the electrical infrastructure of the
Agricultural Machinery Assembly Factory is robust, efficient, and scalable for future growth.
5.5 GROUND FLOOR LIGHTING SCHEME FOR INTERIOR AND EXTERIOR
LUMINARIE
5.6 SINGLE LINE DIAGRAM SHOWING MAINS, SUBMAIN CABLE
5.7 TAKE OFF SHEET