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TABLE OF CONTENTS

SI NO. DESCRIPTION PAGE NO.

1 SCOPE 1

2 REFERENCE 1

3 FORMULA TO BE USED 2

4 NO OF FITTINGS CALCULATION 3

5 SUMMARY 7

Sheet 1 of 7

LIGHTING DESIGN CALCULATION DOCUMENT

1.SCOPE:

The scope of the calculation is to design the lighting for sea water in take pump house with the given

illumination level.

2.REFERENCE:

1.IS:3646-code of practice for illumination

2.Cromton greaves lighting catalouge

3.Sizing criteria as per CI.NO.B7.9.9 of contract technical specification no.B7.9-illumination system.

The Lighting calculation have been carried out for the following area in sea water in take pump house and

jetty based on the lux level requirement as tabulated below.

SI.no AREA REQUIRED LUX LEVEL

1 Switchgear room 200

2 UPS battery charger room 200

3 Battery room 150

4 Control equipment room 400

5 Engg.room 150

6 Operator station 200

7 Mobile cleaning device room 200

8 Pump room 200

9 Jetty 10

Maintenance factor

Control room and A/C rooms :0.75

Other areas :0.7

Height of the working plane

Central control room :0.85m

other areas :0.00m

pump room :0.00m

DOC. TITLE : Lighting Calculation for Facilities at Sea Water Intake Pump House & Jetty

DOC. NO. : 6104-EL-DSN-700-1009

CHENNAI PETROLEUM CORPORATION LTD.5.8MGD DESALINATION PLANT

DEVELOPMENT CONSULTANTS PVT LTD.CONSULTING ENGINEERS

Note:

1.The type fitting to be used are given below (cromtom greaves catalouge):

SI.no Area Type of fixture

1 Switchgear room (vitreous enameld) IGP1324EB(2X40W)

2 IPFC1124EB(2X36W)

3 Control equipment room(decorative type) CRFD24EB(2X36W)

4 IHB1325IH(250W)

5 Street light(HPSV) SSG1315IH(150W)

6 Stair case IGP1214EB+RVE14 (36W)

7 Emergency D.C lighting IBH1110BC

8 Toilets IGP1214EB+RVE14 (36W)

9 Approach Road IGP1214EB+RVE14 (36W)

3. FORMULA'S TO BE USED:L x B

Room Index =

(L + B)XH

Where

L = Length of area to be illuminated

B = Breadth of area to be illuminated

H = Mounting height of light fitting above working plane

L x B x IRNo.of Fittings (NC) =

LOxCOUxMFxLLD

Illumination level in lux,NR x COU x LO x MF x LLD

IL =L x B

Where

NC = No. of light fittings calculated

NR = No. of light fittings Recommended

IR = Illumination required

IL = Illumination level in lux

COU = Co-efficient of utilisation

LO = Lamp output in lumen

MF = Maintenance factor

LLD = Lamp lumen depreciation factor (for fluorescent lamps only)


DOC. NO. : 6104-EL-DSN-700-1009

UPS and battery charger,battery rom(corrosion proof)

Mobile cleaning device room(HPMV) and Pump room(HPMV )

Sheet 2 of 7

Length of area to be illuminated

Breadth of area to be illuminated

Mounting height of light fitting above working plane

No. of light fittings calculated

No. of light fittings Recommended

Illumination required

Illumination level in lux

Co-efficient of utilisation

Lamp output in lumen

Maintenance factor

Lamp lumen depreciation factor (for fluorescent lamps only)

Sheet 3 of 7

4.NO.OF FITTINGS CALCULATION

LIGHTING DESIGN CALCULATION AT SWITCHGEAR ROOM

AREA

11.6 12.89

8.18 5

4.25 4.25

4.25 4.25

Room index 1.13 0.85

Reflection factorCeiling 70 70

wall 50 50floor 10 10

0.49 0.43

Maintenance factor(MF) 0.7 0.7

200 200

capacity of lamp in watts 2X36 2X36

Type of fitting IGP1324HSB+RPC24 IGP1324HSB+RPC24

lamp output in lumens 4900 4900

No.of fittings calculated 12.55 9.71

13 10

207.24 205.96


DOC. NO. : 6104-EL-DSN-700-1009

SWITCH GEAR ROOM(PART-1)

SWITCH GEAR ROOM(PART- 2)

Length of the room(L in mtrs)

Breadth of the room(B in mtrs)

Height of room from FFL (in mtrs)

Mounting height above working plane(H in mtrs)

Co-efficient of utilisation(COU)

Recommended illumination (lux)

No. of fittings recommended

Actual illumination level based on estimation in lux.

Note : As the specification call for VE reflector, since the VE reflector are not in market Powder Coating(PC) reflector which are equivalent to VE reflector are used.

Sheet 4 of 7

LIGHTING DESIGN CALCULATION AT BATTERY ROOM AND CHARGER ROOM

AREA BATTERY ROOM

Length of the room(L in mtrs) 5 3.5

Breadth of the room(B in mtrs) 1.987 3.3

Height of room from FFL (in mtrs) 4.25 4.25

4.25 4.25

Room index 0.33 0.4

Reflection factor

Ceiling 70 70

wall 50 50

floor 10 10

Co-efficient of utilisation(COU) 0.25 0.25


Recommended illumination (lux) 150 200

capacity of lamp in watts 2X36 2X36

Type of fitting IPFC1124EB IPFC1124EB



No. of fittings recommended 2 3

161.7 223.54


DOC. NO. : 6104-EL-DSN-700-1009

UPS BATTERY CHARGER ROOM



Sheet 5 of 7

LIGHTING DESIGN CALCULATION AT CENTRAL CONTROL ROOM

AREA ENGG. ROOM OPERATOR STATION

Length of the room(L in mtrs) 4 3.31 5

3.31 2 4.95

7.5 7.5 7.5

4 4 4

Room index 0.45 0.31 0.62

Reflection factorCeiling 70 70 70

wall 50 50 50floor 10 10 10

0.32 0.32 0.4

Maintenance factor(MF) 0.75 0.75 0.75

400 150 200

capacity of lamp in watts 2X36 2X36 2X36

Type of fitting CRFD24EB CRFD24EB CRFD24EB

lamp output in lumens 4900 4900 4900

No.of fittings calculated 5 0.94 3.74

No. of fittings recommended 5 1 4

399.7 159.88 213.82


DOC. NO. : 6104-EL-DSN-700-1009

CONTROL EQUIPMENT ROOM

Breadth of the room(B in mtrs)



Co-efficient of utilisation(COU)

Recommended illumination (lux)


Sheet 6 of 7

LIGHTING DESIGN CALCULATION AT PUMP ROOM

AREA

Length of the room(L in mtrs) 8.18 11.6

Breadth of the room(B in mtrs) 7.8 6.7

7.2 13.75

6.4 12.82

Room index 0.62 0.33

Reflection factor

Ceiling 70 70wall 50 50floor 10 10

Co-efficient of utilisation(COU) 0.56 0.49


Recommended illumination (lux) 200 200

capacity of lamp in watts 250 250

Type of fitting IHB1325IH IHB1325IH



No. of fittings recommended 3 4

248.82 238.32


DOC. NO. : 6104-EL-DSN-700-1009

SCREEN WASH PUMP AREA

SEA WATER PUMP ROOM




Sheet 7 of 7

5.SUMMARY OF THE FITTINGS

S.NO TYPE OF FITTING QUANTITY TOTAL WATTS

1 IGP1324HSB+RPC24 ( Switgear Room) 23 2X36

2 IPFC1124EB (Battery Room) 5 2X36

3 11 2X36

4 IHB1325IH ( Pump Room) 7 250

5 IHB1325IH ( Screen Wash Pump Area) 2 250

6 SSG1315IH (Approach Jetty) 18 150

7 IGP1214EB+RVE14 ( Staircase) 8 1x36

8 IGP1214EB+RVE14 (Cable Cellar Room) 2 1x36

9 IGP1214EB+RVE14 (Toilets) 4 1x36

10 2 1x36

11 IBH1110BC (Emergency D.C lights) 10 100

12 SSG1315IH (Approach Road in Jetty) 2 1x36


DOC. NO. : 6104-EL-DSN-700-1009

CRFD24EB (Control Equipment Room(CER), Operator Station, Enginner Room, Entrance of CER)

IGP1214EB+RPC14 (Switchgear room Entrance, Entrance to CER from Screen Wash Area)



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