BY ABUBAKAR HUSSAINI SANI MATRICULATION NUMBER: 2005/21984EE

Transcription

1 DESIGN OF STREET LIGHT ARRANGEMENT FOR A ROAD OF 5KM USIr~G MERCURY VAPOUR LAMP WITH A MINIMUM ILLUMINANCE OF 15 LUX AT THE CENTRE OF THE ROAD AND 8 LUX AT THE ROAD KERBS. ALSO PROVIDE THE POWER SUPPLY NETWORK. BY ABUBAKAR HUSSAINI SANI MATRICULATION NUMBER: 2005/21984EE ELECTRICAL AND COMPUTER ENGINEERING DEPARTMENT SCHO(,)L OF ENGINEERING ANI) ENGINEERING TECHNOLOGY FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA, NOVEMBER, 2010

2 DESIGN STREET LIGHT ARRANGEMENT FOR A ROAD OF 5KM USING MERCURY VAPOUR LAMP WITH A MINIMUM ILLUMINANCE OF 15, LUX AT THE CENTRE OF THE ROAD AND 8 LUX AT THE ROAD KERBS. ALSO PROVIDE THE POWER SUPPLY NETWORK. BY ABUBAKAR HUSSAINI SANI MATRICULATION NUMBER: 2005/21984EE A FINAL YEAR PROJECT SUBMITTED TO THE DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING, SCHOOL OF ENGINEERING AND ENGINEERING TECHNOLOGY, FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA, IN PARTIAL FULFILMENT OF THE REQUIREMENTS OF THE AWARD OF THE BACHELOR OF ENGINEERING (B. ENG.) DEGREE IN ELECTRICAL AND COMPUTER ENGINEERING NOVEMBER, 2010 ii

3 DEDICATION Th is project work is solely dedicated to the Holy prophet Mohammed (S.A. W.), my dea r rather Late I\ lh aji Abubakar Sani, My lovely Mother Haj iya Luba 1\. Sani. iii

4 DECLARATION I Abubakar Hussaini Sani, declare that this work was done by me and has never been presented elsewhere for the award of degree. I also hereby relinquish the copyright to the Federal University of Technology, Minna. ABUDAKAR HUSSAINI S. PROF. ORIA USIFO._._._. _._._._._._. _ - '- -- '- '- -- '- '-' - '-' - '- ' -' _'_ '_0_'_'_ ' - '- '- ' - ' - ' - '- '- '- '- '- '- ' - ' _._._._._._._.- (Nm e of student) (Nallle of Super vi SOl).. ~ ~jjj~. MP_..._._... m.rj!i?... -1!4'<f (Signature and date) (Sig at re and date) I ENGR. A.G RAH.... (Name of H. 0. D) \t~r~..\~. ~\'- (Signature alld date) iv

5 ACKNOWLEDGEMENT All praise is due to Allah, the Load of the world, the omnipotent, the omnipresent, the omni scient whose grace accomplishes all good things, who gave me all necessary guidance, motivation, inspiration and courage through the challenging path of this academic height. I pray for Allah 's blessing and perfect peace on the guiding mercy for all creation. ] am particularly indebted to my project supervisor; Prof. Oria Usifo whose commitment to this project work at all stages gave me encouragement. I am indebted to entire staff of the department whose effort criticism and remarks did a lot of good to me and my work. My profound gratitude goes to my dearest parents Late Alhaji Abubakar Sani and Hajiya Luba A.S SUl1i whose efforts and supports actualize my dreams. In fact, I appreciate the moral and financial support given to me by Alhaji (Dr) Shehu Musa whose are always assiduous to the success of my program. [ appreciate the assistance, advice and encouragement rendered to the success of my program in one way or the other by my brothers and sisters who are Mainasara A.S Sani, Yusuf A.S Sani, Shehu A.S Sani, Hauwa'u A.S Sani, Bilyaminu A.S Sani, my twin brother Hassan A.S Sani and our last born Sumayya A.S Sani. My acknowledgment will not be completed without remembering Alhaji Attahiru Bafarawa Former Governor of Sokoto State. I also want to thank my friends Muhammad Adamu Aboki, Musa Umar, Amir Aliyu Magaji, Salihu Ojo, Abubakar Anka, Kamal, Sadiq Bomoi, Faiza Age, Azeeza Age, Abubakar Guru and the rest. May Allah in his infinite mercy bless you All (Ameen). v

6 ABSTRACT This project presents the design of street light arrangement for a road of 5km, the point by point method of illumination was used to fully illuminate the 5km road. The minimum illuminance specified for the centre of the road (15lux) and road kerbs (8Iux) was uscd incalculating the minimum illuminance and consequently the number of lamps required to provide the desired illuminance. The total power required by all lamps used was calculated and appropraite fusing circuit was provided, this was also used in determining the rating of step down transformer required to supply the street lights. A comprehensive power supply network diagram was drawn to show in detail the different stages of power transformation. vi

7 TABLE OF CONTENTS C'over Page i Title Page ii Dedication iii Declaration iv Acknowledgelnent v Abstract vi Table of Contents... vii List of figures x List of tables xi <:li)\j>1r~fl ()~~: (;~~~IlJ\~ I~1rFl()])lJ<:1rI()~ I. J Introduction _ History of street lights Statelnent of probleiti Aims and Objectives J.5 Project Motivation Scope of project Linlitation <:ll\p1r~r 1rW(): THE THE()RY ()F ])~SI(;~ Site Discriplion vii

8 2.2 Power Distribution Incoming Service Cables Final Sub Circuits Cables Cable Categories Underground Cables Over Head Cables PROTECTION Methods of protection Earthing Methods of Earthing TRANSFOR.MER Basic principle of operation Feeder pillar METALLIC POLES Poles Discription LIGHTING Lighting fixtures Types of lighting viii

9 2.7.3 Methods of lighting Forms of lighting Lighting installations ILLUMINATION Basic terms used in illumination engineering HISTORIC PERSPECTIVE OF THE POINT METHOD The point by point method Calculation of illumination Illumination formulae CHAPTER THREE: DESIGN PROCEDURE Lighting Requirelllent Calculation of total lumen required... : Calculation of total number of lamps required for each pole Load calculation and power requirement Power consumed per phasecalculation of total line current Calculation of total line current Distribution board lay-out Choice of cables Choice of transformer ix

10 3.7 Power Supply diagram Recollllllemkd uesign crileria....., CHAPTER FOUR: DESIGN IMPLEMENTATION AND COSTING Lighting Streetlight poles 'olal cost ofprojcct CI-lAPTER FIVE: CONCLUSION Significance ;Z Limitation Conclusion and Recommendation......, REF ERENCES x

11 LIST Ol{ FIGURES Fig Diagram ora tlvo lant: road Fig. 2.2 Si ngle stage distribution Fig. 2.3 Three tage d Istn 'b utlon Fig. 2.4 Sequence of supply controls II Fig. 2.5 Di agram or an idea l transrornh:r Fig. 2.6 Diagram ofa Tungsten filament lamp Fig.2.7 Diagram ofa Tungsten halogen lamp Fig. 2.8 Starting the Ilu orescent lamp Fig. 2.9 Mercury vapor lamp Fig The Sodium vapor lam p Fig.2.11 The point by point method Fig Ill uminance on a point Fig lock dia gralll to illustrate design proced ure Fig 3.2 Street li ght pole illuminating a road Fig. 3.3 Relatiollship between II, X and [)... : Fig. 3.4 Dimensioning ol'road and positioning of poles Fig 3.5 power network diagram Fig 3.6 Di ~ tri but i Oil board sc hemati c diagram xi

12 Fig 3.7 power suplly network diagram LIST OF TABLES Table 3.1 Recommended design criteria Table 4.1 Cost table for mercury vapour lamp Table 4.2 Cost table for streetlight poles Table 4.3 Cost table for power and lighting xii