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TITLE
PROJECT
CLIENT
Lighting and
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A ISSUED FOR APPROVAL
No Rev.
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TABLE OF CONTENTS
1.0.0 CODES AND STANDARDS REFERENCES
2.0.0 GENERAL
2.1.0 Scope of Document
2.2.0 Average !!um"nance Leve! #L$%&
2.'.0 E!ectr"ca! Supp!( S()tem
'.0.0 LG*TNG S+STE, DESCR-TON
'.1.0 nterna! L"gt"ng
/.0.0 CALC$LATONS OF LL$,NANCE FOR NTERNAL LG*T
/.1.0 Ca!cu!at"on Of Numer Of F"ture) For Te u"!"ng
/.1.1 Ca!cu!at"on Of Numer Of F"ture) For Te contro! room
/.1.2
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1.0.0 CODES AND STANDARDS REFERENCES
!!um"nat"ng Eng"neer"ng Soc"et(3 ES
Coe Of -ract"ce For Emergenc( L"gt"ng #BS452663 -art 17 1889&
Nat"ona! E!ectr"c Coe #NEC41888&
EE :"r"ng Regu!at"on 16t E"t"on #BS4;6;17 1882&
Tecn"ca! Spec"f"cat"on3
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-o>er Supp!(
Supp!(
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:ere3
E Average "!!um"nance !eve! #te va!ue) a) g"ven "n e!ectr"ca! e)"
n Numer of !amp) per f"ture
Lumen per !amp
,F ,a"ntenance Factor
$ Coeff"c"ent of $t"!"at"on Factor
A))ume ,a"ntenance Factor #,F& for te ca!cu!at"on of re?u"re L
R
:ere3
L an : are te !engt >"t of te room re)pect"ve!(.
*A ") te mount"ng e"gt of L"gt"ng f"ture from >or@"ng p!ane.
,ount"ng e"gt of L"gt"ng f"ture from :or@"ng -!ane3 *A *,
:ere3
*> e"gt of te >or@"ng p!ane aove te f"n") f!oor of te room
*, mount"ng e"gt of te !"gt"ng f"ture from te f"n") f!oor of
For te ca!cu!at"on of te numer of f"ture) "n te fo!!o>"ng )eet)3
Room Area3 A L:
A))ume Ref!ectance of Ce"!"ng3 :a!!3 an F!oor are ;0
A!! "men)"on) are mea)ure "n meter) un!e)) oter>")e
/.1.0 Ca!cu!at"on Of Numer Of F"ture) For Te u"!"ng
A) per Cartere n)t"tut"on Of Bu"!"ng Serv"ce)3 CBS3 coe for "nce"!"ng3 >a!! an f!oor. Te Room ne #R& ") ca!cu!ate from te
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De)cr"pt"on
Room Lengt
Room :"t
Room *e"gt
Area
)u)pen)"on e"gt
:or@"ng -!ane e"gt
,ount"ng *e"gt
Ref!ectance of Ce"!"ng
Ref!ectance of :a!!
Ref!ectance of F!oor
Room ne
Coeff"c"ent Of $t"!"at"on
,a"ntenance Factor
Re?u"re !!um"nat"on
No Of # 19 & : Lamp -er F"tt"ng
G"ven Lumen For One Lamp
Ca!cu!ate Numer Of #/H26& :3 F"ture
n)ta!!e Numer Of F"ture) :3 220
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Lighting and Small Power Design Calculation DOC. O.
SE!A"E #REA#$E# PLA# A# A%I% CI#& DA#E
$IIS#R& OF !A#ER ' ELEC#RICI#& REV
mall Power Design Calculation
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Date Prepared Che
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NG
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LL$,NANCE LE"t re?u"re "!!um"nance !eve! a)e on )u"ta!e e)"gn proceure). Te )ma!! po>er
of te u"!"ng.
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'90
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n cr"ter"a&
"gt"ng F"ture ") 90
L:
* # L : &
4 *>
te room
"t mu)t e note tat
3 50 an3 20 re)pect"ve!(.
)pec"f"e
ter"or !"gt"ng)3 te coeff"c"ent of ut"!"at"on factor can e ca!cu!ate from te Room no!!o>"ng formu!a3
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S(mo!)
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()*+,*,+()
A
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ked Approved
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!! te area) "n)"e a) >e!! a)e)"gn cover) te 220
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f"ture >"t pr")mat"c "ffu)er.
om f"n")e f!oor.
mu!a3
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e an te ref!ectance) of
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