A PROJECT REPORT I )N

ELECTRICAL SERVICES DESIGJJ FOR THREE

BEDROOM FLAT

BY

MOHAMMED MAHMOOD J CATUN

2004/18892EE

THE DEPARTMENT OF ELECTRICAL/COMPl fER ENGINEERING

SCHOOL OF ENGINEERING AND ENGINEER NG TECHNOLOGY

FEDERAL UNIVERSITY OF TECHNOL( IGY, MINNA.

DECEMBER 2009

\.

DECLARA TION

I, MOHAMMED MAHMOOD KA TUN hereby declal ~ that this project is presented in

partial fulfillment of the requirement for the award of I ;achelor of Engineeri ng (B . Eng)

Degree. It has not been presented before either wholly n' partially for any other degree

elsewhere. Information hereby obtained from publishet I or unpublished works of others

are acknowledged accordingly. I also relinquish the co lyright to the Federal Uni ve rsity

of Technology, Minna.

MOHAMMED M.K. M} LL BALA SALIHU

(Name of Student) (N'I me of Supervisor)

(Signature and Date) (Sil nature and date)

t>O.- ~)g cFY~~F: ENGR Y.A ADEDIRAN (Nll 1l1e of External Examiner)

(H.O.D)

~L\(~b,~, (Signature and Date)

DEDICATION

This study is dedicated to almighty Allah (S WT)

11

ACKNOWLEDGEMENl

For this little project, I have an enormous amount of acknowlecl !ement of assistance to make.

My thanks go first to almighty Allah (SWT) for the energy, prol ~ction ancl guidance bestowed 011

me.

My thanks go also to my family, most especially my mother (H; iiya Hannatu Mahmood ), my

father (Alhaji Mahmood Abubakar Wambai) and my brothers/si ;ters (Yakatu, Ynntcnc, Yaman,

Fati, Gimba, Bcc, Bafazhi, Abdul, Aliyu and my late sister Has~ lI1a) for the wonderful support I

received in the course of this project which I must sincerely ack owledge and profoundly

appreciate.

My most sincere thanks go enthusiastically to my uncle; HRH, I rigadier General Alhaji Yahaya

Abubakar CFR, Etsu Nupe and Chairman Niger state Council 0 1 Chiefs, for considering it

worthwhile to sponsor my carrier throughout.

To Abdulkadiri, Suleiman, Marwan and Bima for their useful c(' ltributions to the development

of my thoughts.

Finally I wish to record my total indebtedness to my supervisor 1alam 13aln Salihu, and Ill )'

echnologists Mrs. Emmanuel Asindi, Mallam Ibrahim Yahaya. Mr. David A. Ajibuwa, their

y and devoted encouragement throughout this project form he basis of my determination to

ahead with this design.

111

ABSRACT

This project examines the electrical service design for three bl drooms flat. The design is aimed

at providing a service based on the provision of the Institull of Electrical Engineering (lEE)

Regulations while adequate provision was made for flexibili y so as to enable any necessary

extension and alteration. The illumination required for each fa l ility within the building depends

on its use. Hence, the number of luminaires in each roon depends on its size. required.

maintenance factor and utilization factor. Socket outlet is posi l. oned to facilitate easy access by

the occupant of the building.

IV

T ABLE OF CONTENT

Content page

Declaration ............................................................ .. .. .

Dedication.......... ........ ..... .... . .. ............ ...... . ..... ...... . . .... 11

Acknowledgelnent. ..... '" ... .. . .. . ...... ... . .. .. . . . .. .... . . .... . . .. . .... 111

Abstract................... .. .............. . ...... ... . .................. . .... iv

Table of content...... . .. ... .. . ............. . ........ . ..... .. ......... . v

1.1

1.2

1.3

1.4

1.5

1.6

CHAPTER ONE: INTRODUCTION

Background .. .. ......... . . .. ........... .... .... ................ .

Aims/Objectives ............................................... .

Advantages ..................................................... .

Scope and Limitation ......................................... .

Project Layout. ................................................. .

Methodology .. .. .. ...... .......... ......... ... .................. . ... .

1.6.1 Utility Pole ...... ..... . .. ...... ............ ............ .. .... .

1.6.2 Distribution Board .................................... .. ... .

2

2

3

3

4

4

5

1.6.3 Internal wiring........................................ .. 5

_HAPTER TWO: LITERATION REVIEW

.1 History of Electricity ........................................ . 6

v

2.1.1 History of Electrical Installation........... .. .. . ....... 7

2.1.2 Industrial Electrical Installation............. ... .. ...... 9

2.1.3 Domestic Electrical Installation................ . ....... 9

CHAPTER THREE: LIGHTING DESIGN AND POWER [ ISTRlBUTION

3.1 Lighting Design.............................................. ....... 10

3.2 Types of lighting Scheme/Distribution and types (' . Reflection on Building Finishing..................... ... 11

3.2.1 Design of Lighting Scheme............ ... . .... .. . 12

3.3 Electrical lamps/luminaries and selection of lumin nes... 12

3.3.1 Lighting Accessories/Fittings.................. . . ....... 15

3.4 Terms relating to lighting calculation.... .............. 15

3.4.1 Method of lighting calculation... ... . ... ........ 17

3.5 Power Design ... .. .. ........ . " .............. , .. . . . . ... . . . . . . . ... . ... 23

3.6 Diversity Factor.............................................. ....... 23

3.7 Final Sub-circuit... ............... ... .... ..... . ... .. ... ... .... ... ... . 24

3.7.1 Lighting Circuit.................................... .. 24

3.7.2 Power Circuit.. ..... .. .... ........ ......... ......... . 25

.8 Distribution Board Design................................ . 27

3.8.1 Supply System........................ .......... .... . ... .... 28

3.8.2 Calculating Total Load............................ . 29

3.8.3 Calculating Total Current.......... ..... ......... . 32

VI

3.8.4 Choosing the correct Distribution Board... ........... 33

3.9 Protection and Safety Measures....................... . ........... 35

3.9.1 Fuses................................................. ............ 36

3.9.2 Miniature Circuit Breaker. .................... .. ... .. .. ... .. 37

3.9.3 Earthing System................................. .. ............ 37

CHAPTER FOUR: TEST AND RESULT 4.1 Test..... ...... ....... ... .. ... .............................. .. .. .. ......... . 40

•

4.2 Result............. .. ............. ... ........ .................. .. ....... ... 40

BILL OF ENGINERING MEASUREMENT AND EVALD \TION ... 41

CHAPTER FIVE: CONCLUSION AND RECOMMEND A rIO

5.1 Conclusion... ................................................. ....... .. . 43

5.2 Recommendation...... .. ..... ...... .. ........ . ......... .. . .. ......... 43

Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .... .. ... .. 44

Appendix 1.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .... ....... 45

Appendix 2............... ... ............ .. ............ .. ....... . ...... .......... 46

Appendix 3 ..... ~........................ ..... .......... . .. ... ........ . .. ... ..... 47

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