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Table of Contents About the project:.................. ............. ............ .............. ............. ............. ............. ............. .. 2
S.L NO . ............................................................................................................................. 3
Expected maximum demand ............................................................................................. 7
Transformer selection ........................................................................................................ 8
Generator selection ........................................................................................................... 9
Material specifications ....................................................................................................... 9
Observation and Recommendations ............ ............. ............. .............. ............ ............. ... 10
Annexures ............ ............. ............. ............. ............. ............. ............. ............. .............. ...... 11
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About the project:
This housing project, Spire Woods is being developed by Spire World at Sector 103,
Gurgaon. It is located on the upcoming Dwarka - Gurgaon Expressway connecting WestDelhi to Gurgaon. 620 dwelling units are accommodated within 12 Towers (T1-T12) in theComplex,having 3 BHK and 2 BHK units as well as penthouses. The sizes of theapartments vary between 1460 sq.ft. to 2208 sq.ft. In addition to this, there is a ClubBuilding and E.W.S. Accommodation consisting of 110 dwelling units. There is a commondouble basement for car parking (in addition to surface parking) and services.
The Complex also has amenities such as a swimming pool, a gym, a sports complex, a
sports club, a media room, meditation centers, restaurants, etc.
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S.L NO . Particulars Area (in m 2)
1. Total Plot Area
46,538.775
(11.5 acres)
2. Built-Up Area 1,43,664.68
3. Permissible F.A.R. (@ 1.75) 81,442.856
4. Proposed F.A.R. (@ 1.732) 80,629.365
5. Permissible Commercial Area (@ 0.5%) 232.693
6. Proposed Commercial Area 214.875
7. Permissible Ground coverage (@ 35%) 16,288.571
8. Proposed Ground Coverage (@ 17.52%) 8,152.853
9. Basement Area 45,976
10. Stilt Area 803
11. Landscape Area (@ 34.5%) 16,050
12 H i h f ll b ildi 44 975
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Fig 3: Electrical Layout at site level
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Fig 5: Typical Location of Electrical and LV Shafts
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Expected maximum demand
Load perUnit(kW)
TotalNo. ofUnits
TotalLoad
(kW)
DiversityFactor
Expected Max.Demand
Reference
A) APARTMENTS
Tower - T1, T8, T9, T11
T& T12
PENTHOUSE
Tower T2 & T3
PENTHOUSE
Tower T4
PENTHOUSE
Tower T5, T6 & T7
PENTHOUSE
T T10
7
9
9
11
10
12
10
12
260
20
104
8
36
4
156
12
1820
180
936
88
360
48
1560
144
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
1092
108
562
53
216
29
936
86
Table : A
Table : B
Table : C
Table : D
Table : E
Table : F
Table : E
Table : F
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C) BASEMENT
Lighting
Ventilation
Drainage pumps
52
235
20
0.7
-
-
36
235
20
Table : J
Table : J
Table : J
D) CLUB BUILDING
750 Sq.m
95 0.7 67 Table : K
E) UTILITIES &EXTERNAL SERVICES
150 0.6 90 Table : L
F) COMMERCIAL 232Sq.Meter
@100W/Sq.m
23 0.7 16
TOTAL 3874
Applying and overall diversity factor of 0.70
The expected max. Demand of the Complex = 3874 x 0.70
= 2712 kW
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Generator selection
Being a prestigious project it is proposed to provide 100% power back up.
Expected maximum demand = 2712 kW
Load requirement in kVA at 0.8 p. f. = 2712 / 0.8 = 3390 kVA
Considering up to 90% loading of rated D.G. set capacity, the required installed capacity ofD.G. sets required = 3390 / 0.90 = 3766O kVA
6 nos. of 600 kVA D.G. sets with weather and sound proof canopies may be selected.These gensets will be radiator cooled and will be installed outdoor with their exhaust pipesgoing above the top the nearest tower.
However, as it is seen normally the standby power demand is less than the grid powerdemand in the residential colonies because of substantial tariff difference. Hence, it isproposed that only 4 nos. 600 KVA gensets shall be provided initially. However, provisionshall be made to add two more sets in future if the need arises.
Material specifications
) f l k l d d l l d d
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Observation and Recommendations
Oil type transformers can be replaced by dry type transformers and placed in the firstbasement so that cabling work is reduced.
HSD tank shall be located near the DG Room instead of the gate so that distance ofpiping work for the same may be provided .
Restricted Access should be provided to the HSD Tank.
The Electrical and LV Shafts may be provided separately instead of single asprovided in case of Tower 10
Acoustic Cover shall be provided to the DG Sets.
Power Back up should be provided to sewerage treatment plant and water treatmentPlant.
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Annexure
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