Electrical Costing (Per Sq.Ft) Quick Reference
March 15, 2014 16 Comments
Load in Multi-storied Building (Madhyanchal Vidyut Vitran Nigam) |
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|
Type of Load |
Calculation |
Diversity |
|
Domestic (Without Common Area) |
50 watt / sq. meters |
0.5 |
| Commercial (Without Common Area) | 150 watt / sq. meters |
0.75 |
|
Lift, Water Pump, Streetlight ,Campus Lighting ,Common Facilities, |
Actual load shall be calculated |
0.75 |
Load in Multi-storied Building (Noida Power Company Limited) |
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|
Type of Load |
Calculation |
Diversity |
| Domestic (Constructed area) | 15 watt / sq. Foot |
0.4 |
| Commercial(Constructed area) | 30 watt / sq. Foot |
0.8 |
| Industrial (Constructed area) | 100 watt/ 1 sq. Foot |
0.5 |
| Lift, Water Pump, Streetlight ,Campus Lighting ,Common Facilities, | 0.5Kw / Flat |
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Voltage Drop: 2% Voltage drop from Transformer to Consumer end. |
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T&D Losses: 2% T&D Losses from Transformer to Consumer end. |
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Approximate % Cost or Sq.Foot Cost |
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|
Project Item |
% of Total Project Cost |
Rs per Sq.Foot |
|
Articheture (Consultancy) |
0.7% |
13.1 Rs / Sq.Foot |
|
Structural (Consultancy) |
1.2% |
21.8 Rs / Sq.Foot |
|
Service Design (Consultancy) |
0.4% |
7.2 Rs / Sq.Foot |
|
Fire Fighting Work |
1.3% |
23 Rs / Sq.Foot |
|
Electrical Work (Internal) |
4.1% |
76 Rs / Sq.Foot |
|
Lift Work |
4.4% |
82 Rs / Sq.Foot |
Street Light Costing (CPWD-2012) |
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|
Fluorescent Lamp |
95 Rs/Sq.Meter |
|
With HPMV Lamp |
130 Rs/Sq.Meter |
|
With HPSV Lamp |
165 Rs/Sq.Meter |
|
Electrical Sinage |
85 Rs/Sq.Meter |
Other Electrical Cost |
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|
Area Required for Solar Light |
10 Watt/Sq.Foot |
|
Solar Power Installation |
1.5 Lacs Rs/1Kw |
|
HVAC Cost |
18 Watt/Sq.Foot |
Distribution Losses (Gujarat Electricity Board) |
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Voltage (Point of Injection) |
At 11 KV |
Point of Energy Delivered |
|
11KV / 22KV / 33KV |
10% |
10.82% |
|
400 Volt |
– |
16.77% |
Size of Ventilation Shaft:
| Height of Building in meter | Size of ventilation shaft in sq meter | Minimum size of shaft in meter |
|
9.0 |
1.5 |
1.0 |
|
12.5 |
3.0 |
1.2 |
|
15 and above |
4.0 |
1.5 |
Rate Analysis (CPWD-2012) |
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|
Description |
Amount |
| Sub Station Equipment | 7000 Rs/ KVA |
| D.G Set with installation | 1000 Rs / KVA |
| UPS with 30min Breakup | 20000 Rs / KVA add 8000 Rs / KVA additional each 30 min |
| Solar Power Generation | 1.25 Lacs / KW |
| Solar Water System (200Liter/Day) | 46000 Rs |
| Solar Water System (300Liter/Day) | 64000 Rs |
| Solar Water System (1000Liter/Day) | 210000 Rs |
| Central AC Plant | 75000 RS / Ton |
| VRF / VRV System | 55000 Rs / HP |
| Air condition System | 11000 Rs / Ton |
| CCTV System | 300 Rs / Sq Meter |
| Access Control system | 200 Rs / Sq Meter |
| Hydropenumatic Water system | 2000 Rs / LPM |
| Building Management System | 300 Rs / Sq Meter add 100 Rs / Sq Meter additional area beyond 10000 Sq Meter |
Rate Analysis (Rs per Sq. Meter) (CPWD-2012) |
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|
Work |
Office/College/Hospital |
School |
Hostel |
Residence |
|
Fire Fighting (with Wet Riser) |
500 |
500 |
500 |
500 |
|
Fire Fighting (with Sprinkler) |
750 |
750 |
750 |
750 |
|
Fire Alarm (Manually) |
– |
– |
– |
300 |
|
Fire Alarm (Automatic) |
500 |
500 |
500 |
500 |
|
Pressurized Mechanical Ventilation |
650 |
650 |
650 |
650 |
Rate Analysis (% of Total Project Cost) (CPWD-2012) |
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|
Work |
Office/College/Hospital |
School |
Hostel |
Residence |
| Internal Water Supply & Sanitary |
4% |
10% |
5% |
12% |
|
Internal Electrical Installation |
12.5% |
12.5% | 12.5% | 12.5% |
Lift Speed (Indian Army Manual) |
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|
No of Floor |
Lift Speed |
|
4 to 5 |
0.5 to 0.7 meter/Sec |
|
6 to 12 |
0.75 to 1.5 meter/Sec |
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3 to 20 |
1.5 to 2.5 meter/Sec |
|
Above 20 |
Above 2.5 meter/Sec |
Lift Details (CPWD-2012) |
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Type of Lift |
Persons |
Weight |
Speed M/Sec |
Travel |
Price |
Add Rs /Floor |
|
Passenger Lift |
8 Person | 544 Kg | 1.0 | G+4 | 18 Lacs | 1.25 Lacs |
|
Passenger Lift |
13 Person | 844 Kg | 1.5 | G+4 | 22 Lacs | 1.25 Lacs |
|
Passenger Lift |
16 Person | 1088 Kg | 1.0 | G+4 | 28 Lacs | 1.50 Lacs |
|
Passenger Lift |
20 Person | 1360 Kg | 1.5 | G+4 | 30 Lacs | 1.50 Lacs |
Approximate Load as per Sq.ft Area (As per DHBVN):
| Sq.ft Area | Required Load (Connected) |
| < 900 Sq.ft | 8 KW |
| 901 Sq.ft to 1600 Sq.ft | 16 KW |
| 1601 Sq.ft to 2500 Sq.ft | 20 KW |
| > 2500 Sq.ft | 24 KW |
| For Flats :100 Sq.ft / 1 KW | |
| For Flats USS /TC: 100 Sq.ft / 23 KVA | |
Load as per Sq.Ft:
|
Type of Load |
Load/Sq.Ft |
Diversity Factor |
|
Industrial |
1000 Watt/Sq.Ft |
0.5 |
|
Commercial |
30 Watt/Sq.Ft |
0.8 |
|
Domestic |
15 Watt/Sq.Ft |
0.4 |
|
Lighting |
15 Watt/Sq.Ft |
0.8 |
Contracted Load in case of High-rise Building:
| For Domestic Load | 500 watt per 100 Sq. foot of the constructed area. |
| For Commercial | 1500 watt per 100 Sq. foot of the constructed area |
| Other Common Load | For lift, water lifting pump, streetlight if any, corridor/campus lighting and other common facilities, actual load shall be calculated |
| Staircase Light | 11KW/Flat Ex: 200Flat=200×11=2.2KW |
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Sanctioned Load for Building |
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| Up to 50 kW | The L.T. existing mains shall be strengthened. |
| 50 kW to 450 kW (500 kVA) | 11 kV existing feeders shall be extended if spare capacity is available otherwise, new 11 kV feeders shall be constructed. |
| 450 kW to 2550 kW (3000 kVA) | 11 kV feeder shall be constructed from the nearest 33 kV or 110 kV substation |
| 2550 kW to 8500 kW (10,000 kVA) | 33kV feeder from 33 kV or 110 kV sub station |
| 8500 kW (10,000 kVA) | 110 kV feeder from nearest 110 kV or 220 kV sub-station |
JIGNESH PARMAR
Useful information, Thanks for posting it.
DK Sharma
Very Good.
On Sat, Mar 15, 2014 at 10:36 PM, Electrical Notes & Articles wrote:
> Jignesh.Parmar posted: ” Load in Multi-storied Building (Madhyanchal > Vidyut Vitran Nigam) Type of Load Calculation Diversity Domestic (Without > Common Area) 50 watt / sq. meters 0.5 Commercial (Without Common Area) 150 > watt / “
thanks for posting
Arish.p.louis
Thanks for enhanced my knowledge
Very useful and knowledgeable information, like it,
Thank you so much for your informative posting
thank you so much
Dear ,Jignesh.Parmar.
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Good information, Prices for lift is not appearing to be market price (even in 2012 as the calander suggest).
Excellent common sense way of identifying and presenting useful information. The International Codes Council needs to learn from this gentleman.
knowledgeable information …Thanks.
Dear Sir ,
Really this is good information , if possible can you pls. tell me in details how much i can consider electrical , mechanical and other load
i am waiting for your response .
very very important knowledge……..thanks.
Thank you so much.
very very nice and detail presentation.. thanks a lot
what is the cost per sft for electrical external services