ECBC Master Trainer · 2018-11-02 · ECBC Buildings. ECBC Compliance - General A building shall be called ECBC compliant by complying with the mandatory provisions (§4.2-Envelope,

SIB Kakkanad ECBC COMPLIANCE REPORT 2018

1 | P a g e

PROPOSED ADMINISTRATIVE BUILDING AT

KAKKANAD, ERNAKULAM, KERALA

ECBC 2017 Compliance Report

DATED: - 30/10/2018

PREPARED AND SUBMITTED BY:

38/324, 38/325, 1st

floor, Pulickkal building, Karshaka road, Kochi-682016, Kerala

Contact: email: [email protected] : [email protected]

Phone: 0484 2323505, 9846059505

Web: www.gtcs.in


2 | P a g e

To, Dated 30th October 2018

The Managing Director

M/s Environmental Engineers & Consultants Pvt. Ltd.

A1 – 198, Janak Puri, New Delhi – 110058.

Kind Attention : Mr P. Z. THOMAS

Sub: Certificate of Compliance to ECBC 2017 requirements for the Proposed Administrative Building

at Kakkanad for M/s South Indian Bank.

Dear Sir,

Further to the review of the design drawings, documents and reports pertaining to the Construction

of the Proposed Administrative Building at Kakkanad for M/s South Indian Bank, we hereby certify

that the project proponents and design Consultants have included all provisions required to comply

with the provisions of the ECBC 2017.

The project when completed is likely to have an Annual Energy Consumption of 27,31,806 kW Hr.

For the Above Grade Area of 18,523 sqm, the Energy performance Index (EPI) is calculated as 147.5

KWh/sqm/Year, which is good enough to Earn this Project a 3 Star Labelling as per BEE Building

Labelling Standards.

The EPI Ratio of the Project is also seen as being 0.97, which is less than 1, therefore satisfying the

stipulated conditions.

Please find attached herewith the brief review report of the project proposals leading to the above

conclusions.

with regards

Shreeganesh V Nair

ECBC Master Trainer

BEE Certified EM

Enc: Compliance Report


3 | P a g e

INDEX

1 Introduction 4

2 ECBC Compliance - General 5

3 ECBC Envelope 6

4 Heating Ventilation and Air Conditioning 15

5 Electrical Design report 21

6 Lighting 32

7 Electrical Power 36

8 ECBC Master Trainer Certificate 40


4 | P a g e

INTRODUCTION

South Indian Bank Administration Building is proposed to be constructed behnd the existing Main

Building in Kakkanad, Ernakulam, Kerala.

Location : Kakkanad

Lattitude : 10.0159° N

Summer

Dry Bulb Temperature : 95 Deg.F (35.0 Deg. C)

Mean Coincident Wet Bulb Temperature : 82 Deg F (27.7 Deg. C)

Kakkanad is typically Warm and humid and experiences rains through the months of June to

November wherein the temperature drops and Humidity touches 100%.

The Building has been designed in modern architectural Style using lot of glass, aluminium and façade

works. Being an Air conditioned building with most of the areas required to be utilized as part of daily

business transactions. Parking areas, and landscaped areas on the upper floors are excluded from

conditioned spaces.


5 | P a g e

ECBC Compliance - General

To comply with the Code, buildings shall

a) have an Energy Performance Index Ratio (EPI Ratio) as defined in §3.1.2 that is less than or equal

to 1 and,

b) meet all mandatory requirements mentioned under §4.2, §5.2 , §6.2, and §7.2.

§3.1.2 : The EPI Ratio of a building is the ratio of the EPI of the Proposed Building to the EPI of the

Standard Building:

�� = ��

��

where,

Proposed Building is consistent with the actual design of the building, and complies with all

the mandatory requirements of ECBC.

Standard Building is a standardized building that has the same building floor area, gross wall area

and gross roof area as the Proposed Building, complies with the mandatory requirements §4.2, §5.2 ,

§6.2, and §7.2, and minimally complies with prescriptive requirements of §4.3, §5.3, and §6.3 for

ECBC Buildings.

ECBC Compliance - General

A building shall be called ECBC compliant by complying with the mandatory provisions (§4.2-

Envelope, §5.2-HVAC, §6.2- SHW, §7.2 - Lighting, and §8.2 – Power) and either of the following:

a) Prescriptive Method (§4.3, §5.3, §7.3)

b) Whole Building Performance Method (Appendix B §10)

The Proposed Administrative Block of the South Indian Bank at Kakkanad is being evaluated using the

Prescriptive Method and Trade Off Method for Evaluation of Envelope.


6 | P a g e

ECBC Envelope

Fenestration

U-factors

U-factors shall be determined for the overall fenestration product (including the sash and frame) in

accordance with ISO-15099, as specified in Appendix C, by an accredited independent laboratory, and

labeled and certified by the manufacturer or other responsible party. U-factors for sloped glazing and

skylights shall be determined at a slope of 20 degrees above the horizontal. For unrated products, use

the default table in Appendix C§11

Solar Heat Gain Coefficient (SHGC)

SHGC shall be determined for the overall fenestration product (including the sash and frame) in

accordance with ISO-15099, as specified in Appendix C§11, by an accredited independent laboratory,

and labeled and certified by the manufacturer or other responsible party.

Exceptions:

a) Shading coefficient (SC) of the center glass alone multiplied by 0.86 is an acceptable alternate for

compliance with the SHGC requirements for the overall fenestration area

b) Solar heat gain coefficient (SHGC) of the glass alone is an acceptable alternate for compliance with

the SHGC requirements for the overall fenestration product

Air Leakage

Air leakage for glazed swinging entrance doors and revolving doors shall not exceed 5.0 l/s-m2. Air

leakage for other fenestration and doors shall not exceed 2.0 l/s-m2.

Opaque Construction

U-factors shall be determined from the default tables in Appendix C§11 or determined from data or

procedures contained in the ASHRAE Fundamentals, 2005.

Building Envelope Sealing

The following areas of the enclosed building envelope shall be sealed, caulked, gasketed, or weather-

stripped to minimize air leakage:

a) Joints around fenestration and door frames

b) Openings between walls and foundations and between walls and roof and wall panels

c) Openings at penetrations of utility services through, roofs, walls, and floors

d) Site-built fenestration and doors

e) Building assemblies used as ducts or plenums

f) All other openings in the building envelope

Overview of ECBC envelope:

The building envelope refers to the exterior façade, and is comprised of opaque components and

fenestration systems. Opaque components include walls, roofs, slabs on grade (in touch with ground),

basement walls, and opaque doors. Fenestration systems include windows, skylights, ventilators, and


7 | P a g e

doors that are more than one-half glazed. The envelope protects the building‘s interiors and

occupants from the weather conditions and shields them from other external factors e.g.: noise,

pollution, etc.

Envelope design strongly affects the visual and thermal comfort of the occupants, as well as

energy consumption in the building. The design of the building envelope is generally the responsibility

of the architect. The building designer is responsible for making sure that the building envelope is

energy efficient and complies with the mandatory and prescriptive requirements of the code.

From an energy efficiency point of view, the envelope design must take into consideration both

the external and internal heat loads, as well as daylighting benefits. External loads include mainly

solar heat gains through windows, heat losses across the envelope surfaces, and unwanted air

infiltration in the building; internal loads include heat released by the electric lighting systems,

equipment, and people working in the building space.

A well designed building envelope not only helps in complying with the Energy Conservation

Building Envelope (ECBC) but can also result in first cost savings by taking advantage of daylighting

and correct HVAC sizing. The building envelope and its components are key determinants of the

amount of heat gain and loss and wind that enters inside. The envelope protects the building‘s

interior and occupants from the weather conditions and other external elements.

Wall

Walls are a major part of the building. Envelope receives large amounts of solar radiation. The

heat storage capacity and heat conduction property of walls are prime factors to meeting the desired

thermal comfort conditions. The wall thickness, materials and finishes can be chosen based on the

heating and cooling needs of the building. Appropriate thermal insulation and air cavities in walls

reduce heat transmission into building which is the primary aim in a hot region.

The basic elements of the Wall system are:

1. Exterior cladding (natural or synthetic)

2. Drainage plane (s)

3. Air barrier system(s)

4. Vapor Retarder (s)

5. Insulating Element(s)

6. Structural elements

Thermal storage / thermal capacity:

Thermal capacity is the measure of the amount of energy required to raise the temperature of a

layer of material, it is a product of density multiplied by specific heat and volume of the construction

layer.

The main effect of heat storage within the building structure is to moderate fluctuation in the

indoor temperature. In a building system, we can understand thermal mass as the ability of a building

material to store heat energy to balance the fluctuations in the heat energy requirements or room

temperature in the building due to varying outside air temperature. The capacity to store heat

depends upon the mass and therefore on the density of the material as well as on its specific heat


8 | P a g e

capacity. Thus, high density materials such as concrete, bricks, stone are said to have high thermal

mass owing to their high capacity to store heat while lightweight materials such as wood or plastics

have low thermal mass. The heat storing capacities of the building materials help achieve thermal

comfort conditions by providing a time delay.

This thermal storage effect increases with increasing compactness, density and specific heat

capacity of materials.

Thermal performance of walls can be improved by following ways:

1. Increasing wall thickness

2. Providing air cavity between walls and hollow masonry blocks

3. Applying insulation on the external surface.

4. Applying light colored distemper on the exposed side of the wall.

Conductance:

Conductivity (K) is defined as the rate of heat flow through a unit area of unit thickness of the

material, by a unit temperature difference between the two sides. The unit is W/mK (Watt per metre

- degree Kelvin). The conductivity value varies from 0.03 W/mK for insulators to 400W/mK for metals.

Materials with lower conductivity are preferred, as they are better insulators and would reduce the

external heat gains from the envelope.

Walls-insulation:

Thermal insulation is of great value when a building requires mechanical heating or cooling

insulation helps reduce the space-conditioning loads. Location of insulation and its optimum thickness

are important. In hot climate, insulation is placed on the outer face (facing exterior) of the wall so

that thermal mass of the wall is likely coupled with the external source and strongly coupled with the

interior (Bansal, Hauser, Minke 1994).

Air Cavities:

Air cavities within walls or an attic space in the roof-ceiling combination reduce the solar heat gain

factor, thereby reducing space-conditioning loads. The performance improves if the void is ventilated.

Heat is transmitted through the air cavity by convection and radiation. A cavity represents a

resistance, which is not proportional to its thickness. For a thickness >20mm, the resistance to heat

flow remains nearly constant. Ventilated air does not reduce radiative heat transfer from roof to

ceiling. The radiative component of heat transfer may be reduced by using low emissivity or high

reflective coating (E.g.: aluminum foil) on either surface facing the cavity. With aluminium foil

attached to the top of ceiling, the resistance for downward heat flow increases to about 0.4 W/m2k

compared to 0.21 W/m2k in the absence of the foil (Bansal, Hauser, Minke, 1994).

Windows

Windows are very important components of the building envelope and in addition to providing

physical and visual connection to outside; they also allow heat and light inside and add beauty to the

building. Solar radiation coming in through windows provides natural lighting, natural air and heat

gain to the space inside, thus significantly impacting the energy usage of the building. The main


9 | P a g e

purpose of a building and its windows is to provide thermal and visual comfort to the occupants using

the minimum possible energy.

Proper location, sizing, and detailing of windows and shading form are important parts of the bio-

climatic design as they help to keep the sun and wind out of building or allow them when needed. The

location of openings for ventilation is determined by prevalent wind direction, openings at higher

levels naturally aid in venting out hot air. Size, shape and orientation of openings moderate air

velocity and flow in the room, a small inlet and a large outlet increase the velocity and distribution of

air flow through the room. When possible, the building should be so positioned at the site that it

takes advantage of prevailing winds. The prevailing wind direction is from the west/north-west. The

recommendation is IS: 3362-1977 code of practices for the design of windows for lighting and

ventilation. There should be sufficient air motion in hot-humid and warm-humid climates. In such

areas, fans are essential to provide comfortable air motion indoors, fenestrations having 15% -20% of

floor area are found adequate for both ventilation & day lighting in hot & dry, and hot & humid

regions. Natural light is also admitted into a building through glazed openings. Thus, fenestrations

design is primarily governed by requirements of heat gain and losses, ventilation and day lighting. The

important components of a window are the glazing systems and shading devices

Primary components of a window which have significant impact on energy and cost of the building for

which guidelines are provided in this section are as follows:

1. Window size, placement

2. Glazing

3. Frame

4. Shading (external & internal)

5. Window size & placement

Height of window head: The higher the window head, the deeper will be the penetration of daylight.

Sill height (height from floor to the bottom of the window):

• The optimum sill for good illumination as well for good ventilation should be between the

illumination workspace and head level of a person. Carrying out any task, the suitable work plane

levels are to be 1.0 to 0.3 m high respectively.

• Strip windows provide more uniform daylight

• Punched windows should be paired with work areas to avoid creating contrasts of light and dark

areas.

• Avoid big windows close to task areas since they can be source of thermal discomfort and might

also cause glare.

Also larger the windows, the more important glazing selection and shading effectiveness are to

control glare and heat gain.

Use separate apertures for view and daylight—for good day lighting and glare control separate the

view and light windows. Light window should have clear glass for maximum daylight penetration.

Tinted glass could be used below for glare control. The structure in between the two provides a visual

break and an opportunity to attach light shelf or shading device.

Glazing systems:


10 | P a g e

The most common glazing material used in openings is glass, although recently polycarbonate

sheets are being used for skylights. Before recent innovations in glass, films and coatings, a typical

residential window with one or two layers of glazing allowed roughly 75% -85% of the solar energy to

enter a building.

Internal shading devices such as curtains, or blinds could reflect back some of that energy outside

the building. The weak thermal characteristics of the windows became a prime target for research

and development. In an attempt to control the indoor air temperature of buildings windows admit

direct solar radiation and hence promote heat gain. This is desirable in cold climates, but is critical in

hot climates. The window size should be kept minimum in hot & dry regions. The primary properties

of glazing that impact energy are:

1. Visible reflectance (affecting heat and light reflection)

2. Thermal transmittance or U - value (affecting conduction heat gains)

3. Solar heat gain (affecting direct solar gain)

4. Spectral selectivity (affecting daylight and heat gain)

5. Glazing colour (affects the thermal and visual properties of glazing systems and thus energy usage)

Visible transmittance (VLT %) or Daylight Transmittance

This is the percentage of normally incident visible light transmitted through the glazing. Glazing

with a high visible transmittance is clearer in appearance and provide sufficient daylight and views.

Clear glass however, can create glare problem. Glazing with low visible transmittance give better glare

control, but offer minimal daylight integration and diminished views.

Visible reflectance or daylight reflectance

This is the percentage of incident light that is reflected back. Most manufacturers provide both

outside reflectance (exterior daytime view) and inside reflectance (interior mirror image at night).

Treatments such as metallic coating increase the reflectance. Reflective glazing reflects a large

portion of the solar radiation incident on it, thereby restricting heat gain inside the building, which is

advantageous.

Disadvantage is that these reflective glazing allows low visible transmittance and thus minimal

daylight integration.

Solar heat gain coefficient (SHGC)

These are the indicators of total solar heat gain through a glazing. SHGC is the ratio of the solar

heat gain entering the space through the fenestration area to the incident solar radiation. Solar heat

gains include directly transmitted solar heat and absorbed solar radiation, which is then re-radiated,

conducted or convected into the space. These indices are dimensionless numbers between 0 and 1

that indicate the total heat transfer of the sun’s radiation. These properties are widely used in cooling

load calculations. Glass with a lower SHGC or SC (Shading coefficient) helps in reducing cooling loads

in hot climate zones.

Building Envelope Trade Off Method


11 | P a g e

To comply with the Prescriptive Method of Section §4, the Building Envelope Trade-off Method is

being used in place of the prescriptive criteria of §4.3.1, §4.3.2 and §4.3.3. A building complies with

the Code using the Building Envelope Trade-off Method if the Envelope Performance Factor (EPF) of

the Proposed Building is less than or equal to the EPFof the Standard Building, calculated as per

§4.3.5.

The building envelope complies with the code if the Envelope Performance Factor (EPF) of the

Proposed Building is less than the EPF of the Standard Building, where the Standard Building exactly

complies with the prescriptive requirements of building envelope. This method shall not be used for

buildings with WWR>40%. Trade-off is not permitted for skylights. Skylights shall meet requirements

of 4.3.4. The envelope performance factor shall be calculated using the following equations.

This Site is in the Warm and Humid Climate Zone. hence Table 4-18 is being used.


12 | P a g e

Standard Building EPF Calculation

EPF of the Standard Building shall be calculated as follows:

(a) The Standard Building shall have the same building floor area, gross wall area and gross roof area

as the Proposed Building. For mixed-use building the space distribution between different typologies

shall be the same as the Proposed Design.

(b) The U-factor of each envelope component shall be equal to the criteria from §4 for each class of

construction.

(c) The SHGC of each window shall be equal to the criteria from §4.3.3.

(d) Shading devices shall not be considered for calculating EPF for Standard Building (i.e. SEF=1).


13 | P a g e


14 | P a g e

Proposed Building EPF Calculation

EPF of the Proposed Building shall be calculated using the values of the Coefficients proposed to be

used.


15 | P a g e

It is clearly seen that the Proposed Building has been provided with an Envelope that satisfies the

Energy Performance Factor expected in a Standard Building.

• U Value of the Glass is proposed at 2.8 using AIS Ecosense Marina Double Glazed Units with 6mm

Glass, 12mm Air Gap and 6mm Glass.

• U Value of the roof has been achieve at 0.6 using XPS Insulation 75mm on underdeck of Roof Slab,

coupled with 100mm RCC Slab, 1mm thick PVC membrane, 125mm thick cement concrete screed

using red brick bats as filler material finished with a top layer of 6mm thick white reflective ceramic

tiles.

• U factor for walls has been achieved using 18mm thick cement plaster on the Exterior face,

200mm thick AAC Blocks and 12mm thick cement plaster on the Interior face. In the areas, where the

Structured Glazing is proposed, an additional insulation using dry wall made from 12mm gypsum

board, 100mm PUF 48kg/cm2 density fixed to the wall and lintel. This renders the U value of the wall

at 0.63

• Shading factor due to the use of Aluminium Louvres in the Exterior face of the building has been

considered in the South and West Faces.

• Shading factor due to 1m projection has been considered in the East face also.

• The Trade Off method had been used to offset the U value not achieved in the Roof Assembly.

The Building is seen to be ECBC Compliant in Envelope using the Trade Off Method.


16 | P a g e

HVAC (Heating, Ventilation & Air-conditioning)

Heating, Ventilation and Air Conditioning (HVAC) refers to the equipment, distribution systems,

and terminals that provide, either collectively or individually, the heating, ventilation, or air-

conditioning requirement to a building or a portion of building.

HVAC systems also affect the health, comfort, and productivity of occupants. Issues like user

discomfort, improper ventilation, lack of air movement and poor indoor air quality, and poor acoustic

design are linked to HVAC system design and operation and can be improved.

The best HVAC design considers all the interrelated building systems while addressing indoor air

quality, thermal comfort, energy consumption, and environmental benefits. Optimizing both the

design and the benefits requires that the architect and mechanical system designer address these

issues early in the schematic design phase and continually revise subsequent decisions throughout

the remaining design process. It is also essential that a process be implemented to monitor proper

installation and operation of the HVAC system throughout construction.

HVAC Design Parameters

The design of the Air conditioning & ventilation system is based on the prevalent standards and codes

prescribed by ASHRAE, BIS, NBC & SMACNA.

Outdoor Design Conditions

Outdoor Design Conditions are based on Weather data published by IMD is considered and is as

follows:

Location : Kakkanad

Lattitude : 10.0159° N

Summer

Dry Bulb Temperature : 95 Deg.F (35.0 Deg. C)

Mean Coincident Wet Bulb Temperature : 82 Deg F (27.7 Deg. C)

Inside Design Conditions

• Dry Bulb Temperature : 24.0 Deg. C ±1 Deg. C

• Relative Humidity : Not exceeding 60%

Design Considerations & Assumptions

• Total Air Conditioned Area – 121409 Sq.ft

• Occupancy – 2763 Persons

• Outdoor Air – 5 CFM/Person + 0.06 CFM/Sq.Ft

• Floor gain – Ground Floor Only

• Roof/Ceiling gain – 11th

Floor Only

• Exposed Walls – 9’’ Brick with ½’’ Cement Plaster

• Glass – High Performance Glass

• Roof – 15 cm thick RCC Slab

• Heat Recovery System - Considered.


17 | P a g e

Lighting Load & Equipment Load

• Lighting Load – 1 watts per Sq.ft.

• Equipment Load – 246 KW

• U-Factor Considered

o Walls Non insulated - 0.3

o Walls Insulated - 0.15

o Roof Insulated - 0.12

o Exposed Glass - 0.8

AIR CONDITIONING SYSTEM

Considering the above design factors, the total cooling load works out to 360 TR. The air conditioning

system proposed is 3 Nos 175 TR high efficiency water cooled screw chillers (2 Working + 1 Stand by), Out

of which one chiller shall be with Variable Frequency Drive. Each space shall be provided with separate

AHUs/FCUs and can be controlled independently. For areas requiring 24 hour air conditioning, VRF system

is provided as a stand by.

Equipment Specifications

Water Cooled Chilling Machine

Performance rating of the water chilling machine shall be based on the following design parameters:

Type Water Cooled Screw

Chiller

Capacity 175 TR

Temperature of chilled water entering chiller (54° F ) 12.2° C

Temperature of chilled water leaving chiller (44.6° F) 7° C

Fouling factor for chiller in FPS unit 0.0001

Temperature of condenser water entering condenser (90° F) 32.2 °C

Temperature of condenser water leaving condenser (97.5° F) 36.4°C

Fouling factor for condenser in FPS unit 0.00025

Refrigerant HFC134a

COP at ARI conditions (100% load) 5.6 or above


18 | P a g e

Design parameter for selection of Air Handling Unit and its components shall be:

Type Double Skinned Floor/Ceiling

AHUs

Maximum face velocity across cooling coils 2.54 m/sec (500 fpm)

Maximum fan outlet velocity 9.14 m/sec (1800 fpm)

Fan Plug Fan

Motors IE-4 or above rated EC Motors

Motor Efficiency 70%

Design parameter for selection of Cooling Tower shall be:

Type Induced draft FRP

Capacity 175 TR

Water flow rate 612.5 US GPM

Entering water temp 97.5 Deg F

Leaving water temp 90 Deg F

Design wet bulb temp 82 Deg F

Fan type Axial flow

Type of motor IE-4 Rated TEFC sq.cage

induction motor.

Design parameter for selection of Primary Chilled Water Pumps shall be:

Type End suction back pull out Closed Coupled

Flow Rate 420 US GPM

Head 15 meters

Impeller Bronze / Stainless Steel

Shaft Stainless Steel


19 | P a g e

Motor TEFC Squirrel Cage Induction Motor

Speed 1450/2900 RPM

Design parameter for selection of Secondary Chilled Water Pumps shall be:


Flow Rate 420 US GPM

Head 28 meters




Speed 1450/2900 RPM

Design parameter for selection of Condenser Water Pumps shall be:


Flow Rate 612.5 US GPM

Head 23 meters




Speed 1450/2900 RPM

CAR PARK VENTILATION

The mechanical ventilation system is considered only for the basement. During normal mode, main fans

shall be designed for 6 ACPH and 12 ACPH in case of fire.

TOILET VENTILATION SYSTEM

12 ACPH has been considered for toilet exhaust.


20 | P a g e

ELECTRICAL LOAD DETAILS FOR AIR CONDITIONING

Sl.

No Description Water cooled system

1 Power consumption. (k.w)

Capacity Nos In Kw Total

1.1 Chillers (in TR)

(2W+1St.By)

175 2 0.62 217

1.2 Chilled water pump

(Primary) (in HP)

(2W+1St.By)

5 2 0.746 7.46

1.3 Chilled water pump

(Secondary) (in HP)

(2W+1St.By)

15 2 0.746 22.38

1.4 Condenser water pump (in

HP) (2W+1St.By)

20 2 0.746 29.84

1.5 Cooling tower (in HP) 10 2 0.746 14.92

1.6 AHU’s & FCU's (in KW) 1 Lot 125 125

1.7 Toilet Exhaust Fan (in KW) 5 1 1 5.00

1.8 Currency Chest Ventilation

Fan (in KW)

0.5 2 1 1.00

Total power consumption

(k.w)

422.6

Stand By:

1 VRF SYSTEM - 30 TR

(for ELV Rooms & CCTV

Room)

30 1 1.1 33.00

Normal Mode Fire Mode

2 Car Park Ventilation Nos Kw Total

Kw

Nos Kw Total

Kw

2.1 Jet Fans 10 0.24 2.4 10 1.2 12

2.2 Extract Fans 1 15 15 2 15 30

Total power consumption

(k.w)

17.4 42


21 | P a g e

Annual Power Consumption

Bank day Operational Hours - 9AM to 5 PM

Days of Operation - 300 Days

Considering an average of 60% Load the total power consumption is

422.6 x 8 x 300 x 0.6 = 608544 KW

Night Operational Load - 5 PM to 9 AM

Considering an average of 10% Load during night the total power consumption is

422.6 x 16 x 300 x0 .1 = 202848 KW

Total Annual Projected Power Consumption - 811392 KW


22 | P a g e

ELECTRICAL DESIGN REPORT A. General:

The electrical System for the proposed Building is designed by considering all the advanced facilities,

latest technologies, quality, aesthetics, reliability and energy efficiency.

100% Standby-supply is provided by installing adequate number of DG sets .UPS supply is considered

for IT load and emergency lighting in all floors to avoid the black out during the change over time

between KSEB and DG power supply.

B. Input Data:

Plumbing Load

• Domestic Water Supply Pump(7HP-2Nos) : 10.5 kW

• Flushing Water Supply Pump(6HP-2Nos) : 9.0 kW

• Rain water to Flush Tank Pump(5HP-2Nos) : 7.5 kW

• STP to RTT(0.5HP 2Nos) : 0.75 kW

• Bore Well to Sump(5HP 1No.) : 3.75 kW

• Open Well to Sump(1HP 2Nos) : 1.5 kW

• Basement Drain Pump(2HP 5Nos) : 7.5 kW

• Wet Well to STP(0.5HP 2Nos) : 0.75 kW

• STP 5.5 kW

Total Load : 46.75kW

HVAC Load

• Chiller(2W+1S) : 300 HP 360.0kW

• Chill Water pump primary(2W+1S) : 10 HP 14.92kW

• Chill Water pump secondary(2W+1S) : 20 HP 29.84kW

• Condenser water pump(2W+1S) : 30 HP 44.76kW

• Cooling Tower pump(2W+1S) : 15 HP 22.38kW

• AHU’s & FCU’s : 159.63 kW

• Toilet Exhaust Fan : 5.0kW

• Currency Chest ventilation fan : 1.0kW

• VRF System(Stand By) : 30 HP 33.0kW

Total Load : 670.53kW


23 | P a g e

Car Park Ventilation Load

• Jet Fans : 12.0Kw(Fire Mode)

• Extract Fan : 30.0Kw(Fire Mode)

Total Load : 42kW

Fire Fighting Load

• Main Pump : 100 HP

• Sprinkler Pump : 100 HP

• Jockey Pump : 7.5 HP

C. Light Load Calculation:

Sl.No

. Description Connected Load Grid (kW) Connected Load UPS (kW)

1 BASEMENT FLOOR – LIGHT LOAD 1.5 .5

2 GROUND FLOOR- LIGHT LOAD 3.5 2.2

3 FIRST FLOOR- LIGHT LOAD 1.5 .5

4 SECOND FLOOR- LIGHT LOAD 1.5 1

5 THIRD FLOOR- LIGHT LOAD 2.6 2.0

6 FOURTH FLOOR- LIGHT LOAD 1.5 1

7 FIFTH FLOOR- LIGHT LOAD 1.3 1

8 SIXTH FLOOR- LIGHT LOAD 4.2 2.0

9 SEVENTH FLOOR- LIGHT LOAD 4.5 2.0

10 EIGHTH FLOOR- LIGHT LOAD 2.0 2.0

11 NINTH FLOOR- LIGHT LOAD 2.7 2.0

12 TENTH FLOOR- LIGHT LOAD 2.5 2.0

13 ELEVENTH FLOOR- LIGHT LOAD 1.5 1.0

14 TERRACE FLOOR 0.5


24 | P a g e

15 SERVICE BLOCK 1.2 .5

16 FACADE LIGHTING 2.5

15 LANDSCAPE LIGHTS 2.0

TOTAL LOAD 37.0kW 19.7kW

D. Total Electrical Load Calculation:

Sl.No

. Description

Connected

Load Raw

Power (kW)

Connected

Load UPS

Power (kW)

Maximum

Demand Raw

Power(kVA)

Maximum

Demand

UPS

Power(kVA)

1 BASEMENT FLOOR - LIGHT & SMALL

POWER(L&SP) 15.0 2.0 11.0

1.7

2 GROUND FLOOR- L&SP 15.0 8.0+2.5 11.0 10.0+2.2

3 FIRST FLOOR- L&SP 3.0 2.5 2.2 2.2

4 SECOND FLOOR- L&SP 6.0 2.5 4.5 2.2

5 THIRD FLOOR- L&SP 13.5 19.5+2.5 10 20+2.2

6 FOURTH FLOOR- L&SP 10.0 2.5 7.5 2.2

7 FIFTH FLOOR- L&SP 6.0 2.5 4.5 2.2

8 SIXTH FLOOR- L&SP 27.5 37.5+2 20.0 37.0+1.6

9 SEVENTH FLOOR- L&SP 25.5 26.5+2 19.0 25.0+1.6

10 EIGHTH FLOOR- L&SP 21.0 36.0+2 15.5 37.0+1.6

11 NINTH FLOOR- L&SP 18.5 26+2 14.0 25.0+1.7

12 TENTH FLOOR- L&SP 20.5 30+2 15.0 20.0+1.7

13 ELEVENTH FLOOR- L&SP 5.0 2.0 3.7 1.7

14 KITCHEN LOAD 75.0

30.0

15 TERRACE FLOOR 2.0

1.5

17 SERVICE BLOCK 3.5 .7 2.0 .5

18 LIFT LOAD-5 NOS 60.0

50.0


25 | P a g e

19 HVAC LOAD 670.53

600.0

20 CARPARK VENTILATION 42.0

20.0

21 PUMP LOAD 46.75

20.0

22 MECHANICAL PARKING LOAD 115.0

30.0

23 Fire pump(main pump+sprinkler

pump+jockey pump)

100HP+100H

P+

7.5HP

- -

TOTAL LOAD 1201.00+

FIRE PUMP 213.2 891.4

200.0kVA

TOTAL 891.4+200 kVA 1091.4kVA

E. Equipments selected:

Transformer

2 No. of 11kV/415v 1000kVA Indoor dry Type Cast Resin K7 rated Transformer with On Load Tap

Changer.

Diesel Generator Set

3 Nos. of 415V, 3 Phase, 50 Hz, 650kVA DG sets with AMF,ALS and Auto Load Management.

UPS

3 Nos. 120kVA UPS in Redundant Parallel Architecture for IT load.

3 Nos. 15kVA UPS in Redundant Parallel Architecture for Emergency Lighting.

Solar PV System

100kW Grid Tied System

F. Power Distribution Arrangement:

Grid Power Supply

The power supply to the building has to be availed at 11kV as per the conditions of supply of Kerala State

Electricity Board(KSEB). The anticipated maximum demand is around 1100 kVA.


26 | P a g e

HT Power distribution Scheme

A separate dedicated 11kV feeder shall be extended to the premises from nearest substation and tapped

by installing a RMU. An outdoor type Bi-directional metering facility will be provided at this point as per

KSEB requirements. 11kV UG armoured Aluminium cable will be provided from this point to HT indoor

Multi Panel located in the Electrical room in the Ground Floor of Service Block. HV & LV switchgear

protection and tripping system shall have 24 volts DC power supply through dedicated sealed

maintenance free battery pack with battery charger.

G. Major Equipments:

Transformer

Transformers shall be copper wound with ECBC energy efficient standards and connections shall be delta

on high voltage side and star on low voltage side, with neutral terminal brought out for solid earthing

(grounding) corresponding to the vector symbol DYN-11. ON-load tap changer will be provided on HV

side, with standard tapping’s for variation (-) 10% to (+) 5% in steps of 1.25% each. Magnetic core shall

be made up of cold rolled grain oriented low loss steel stampings. Transformers shall be designed with

latest technology which shall have more efficiency with low losses.

Based on the load distribution, 2 Nos 1000 KVA K7 Rated Dry type cast resin transformer with On Load

Tap changer is proposed, which can be placed in the electrical room adjacent to HT panel room.


27 | P a g e

Standby Power

a) Diesel Generator

Stand by supply is considered by installing multiple Diesel Generating sets with auto mains failure, Auto

synchronization and auto load sharing facility for safe, reliable, energy efficient and economic operations.

The 3 Star Rated DG sets will be located in the Ground Floor of Service Block adjacent to Main Electrical

room.

The entire installation is provided with 100% standby power generated by 2 Nos. 650 KVA DG set and 3rd

one

will be kept as redundant. All lighting, power and HVAC System will be switched over to DG sets, using AMF

arrangement during power failure. Also option for manual operation is provided for switching off the

power for repair/ maintenance.

Residential type silencer shall be provided for each DG set. Independent exhaust pipe from each DG set shall

be taken through shafts/external wall to the terrace level of Service Block. DG sets shall be conforming to

latest CPCB norms with canopy. High Speed Diesel shall be stored in Day tanks and in few nos. of drums in

fuel storage room located at Service Block, as permitted statutorily. The gensets proposed are radiator

type.


28 | P a g e

b) UPS Power

UPS power shall be supplied on centralized basis to support IT loads/Emergency Lighting. UPS system for IT

loads shall be provided with 15 minutes battery backup with redundancy. Separate UPS is proposed for

Emergency lighting with 90Minutes battery backup as required by NBC for fire fighting services..

c) LT Switch Boards (Panel Boards)

Main Switch Boards and Sub Switch Boards shall incorporate Air Circuit Breaker/Moulded Case Circuit

Breakers. Final distribution boards shall incorporate miniature circuit breakers of 10 KA minimum

interrupting capacity (MCB) & residual current circuit breaker of 30 mA (RCCB).

Distribution boards shall be located in accessible positions to suit the area of each floor within the building.

All major equipments in Kitchen shall have RCCB protection. IP rated sockets will be provided for Kitchen

equipments as required.

H. Power Factor Improvement & Harmonic Mitigation

Automatic power factor compensating multiple capacitor units shall be provided, for maintenance of

average power factor of 0.99 to unity to have effective savings in energy cost. Switching arrangement with

APFC relay shall be provided to sense the power factor in the system and shall automatically switch

ON/OFF the capacitor units to achieve the preset power factor.

MV harmonic filters shall be used with harmonic-filter-duty power capacitors to mitigate harmonics,

improve power factor and avoid electrical resonance in MV electrical network.


29 | P a g e

I. Lighting System

The lighting system design of the project is done adopting a task oriented design approach in co-

ordination with the interior designer to assure that the lighting is located correctly with proper luminaire

selection. The wiring inside the building is planned and the layout prepared considering the above.

Essential flexibility shall be provided for effective controlling of light for better energy efficiency.

The lighting system in the common areas namely parking areas, lobby & staircase areas etc. are designed

by a luminous environment design approach. Certain lights in staircases, passages, parking and landscape

areas are proposed to be controlled in BMS and rest by standalone sensors. All toilets are provided with

standalone sensors for energy efficient control of lighting. Dimming equipment for lighting control shall

be provided for common areas.

Highly efficient LED luminaries are considered for lighting.

Lighting Design data

s.no Area Avg.Lux Level

1 Typical CM Cabin 315

2 Typical Work Station 318

3 Typical VC Room 450

4 Typical DGM Cabin 314

5 Typical Discussion Room 333

6 Typical Toilets 175

7 Parking Area 90

8 Lobby/Passage 200

Emergency Lighting Installation

Emergency lights shall be provided to achieve the following minimum coverage.


30 | P a g e

• Stairways, Work stations corridor, lift lobby, basement car parking and Service block shall be provided

through UPS supply having 90 minutes battery backup.

• Stair lights shall be with self contained maintenance free luminaries and back-up will be provided with

UPS power.

External Lighting:

External Lighting for the facility will consist of the following:

Security lighting 60 W, LED light fixtures installed on 6 meter poles shall be used.

Landscape Lighting shall consisting of LED Bollard, architectural light fixtures planned in accordance

with the landscape layout.

Building Illumination 80/120 W LED area light fixtures shall be planned at strategic locations, in

consultation with architects, for building illumination. Name Board / Logo Board may be wired through

an automatic timer switch.

The Main Block shall be protected by providing Structural lightning protection system as per IS/IEC-

62305. This system shall include air termination using copper coated steel conductor on top of the

building, additional conductor installed inside an RCC column and slab along with structural steel,

earth electrodes and its interconnection as per the requirement for creating a low impedance path to

the earth in the event

Where cables are laid close to other services it should have a minimum clearance of 50mm from other

services such as Telephone, Water and Sewer lines.

Solar Power Generation

The open space available on the terrace can be utilized for power generation by installing solar

Photovoltaic Panels. Approximately 100kW power generation is proposed with grid tied system.

Energy Conservation

The electrical system for the project is designed by giving due emphasis on energy efficiency.

• Highly efficient LED lights are proposed in all areas.

• Lighting control using BMS/stand alone sensors & dimmers are proposed for energy saving.


31 | P a g e

• Energy management using BMS is proposed to avoid wastage of energy.

• VFD for various motors/pumps to save energy.

• IE 3* rated motors as energy saving measure.

• Transformers and Generators shall be energy/fuel efficient.

• All switchgears selected shall be with low watt loss.

ELV SYSTEM

Building Management System

• Lighting control system in general areas( ON/OFF, Dimming) and on off control in workspaces

• A/C control system.

• Scheduling of pumps

• Monitoring of equipments like Transformer, D/G set, UPS etc.

• Remote monitoring for energy for effective load management


32 | P a g e

Lighting

Lighting alone accounts for almost 15% of the total energy consumption in India. Lighting is an

area that offers many energy efficiency opportunities in almost any building facility, existing or new.

Using efficient lighting equipment and controls is the best way to ensure lighting energy efficiency

while maintaining or even improving lighting conditions. For a lighting designer, an energy efficient

lighting design involves careful integration of many requirements and considerations such as building

orientation, interior building layout, task illumination, daylight strategies, glazing specification, choice

of lighting controls, etc.

Energy savings:

Several studies have recorded the energy savings due to daylight harvesting. Energy savings for

electric lighting in the range of 20-60% are common. Savings are very dependent on the type of space

the light harvesting control system is deployed in, and its usage. Clearly, savings can only accrue in

spaces with substantial daylight where electric lighting would have been otherwise used. Therefore

daylight harvesting works best in spaces with access to conventional or clerestory windows, skylights,

light tube groups, glass block walls, and other passive day lighting sources from sunlight; and where

electric lighting would otherwise be left on for long periods.

It is too simplistic to try to increase energy savings by increasing the size of windows. Daylight

over-illumination may cause glare for occupants, causing them to deploy blinds or other window

shading devices, and compromising the daylight harvesting system. Even partially deployed venetian

blinds can cut energy savings in half.

Impressive energy savings estimates may not be realized in practice due to poor system design,

calibration, or commissioning. Systems that dim or switch electric lighting in a distracting manner, or

that produce overall light levels that are perceived as too low, can be sabotaged by occupants. (For

example, simply taping over a sensor will create constant electric lighting at maximum output.)

The adoption of daylight harvesting technologies has been hampered by high costs and imperfect

performance of the technologies. However, studies have shown that by using daylight harvesting

technologies, owners can see an average annual energy savings of 24%.

Sustainability:

The green building-sustainable building movement encourages sustainable architecture design

and building practices. Various green building Eco label certification marks exist around the world and

these programs offer points for various building design features that promote sustainability, and

certification at various levels is awarded for reaching a given number of points. One of the principal

ways to gain points is through energy saving measures. Therefore, daylight harvesting is a common

feature of green buildings. Thus green building practices are increasing the production of daylight

harvesting components, leading to lower prices.

Many electric utilities provide financial incentives for their customers to save energy. One such

incentive is rebates on daylight harvesting systems, which also reduces payback periods.

Exterior Lighting Control

As per the Code:


33 | P a g e

Lighting for all exterior applications not exempted in Section 7.3.5 (of the Code) shall be controlled

by a photo sensor or astronomical switch that is capable of automatically turning off the exterior

lighting when daylight is available or the lighting is not required.

Exterior Building Grounds Lighting As per the Code:

Lighting for exterior building grounds luminaries which operate at greater than 100W shall contain

lamps having a minimum luminous efficacy of 60lm/W unless the Luminaire is controlled by a motion

sensor or exempt under Section 7.1 of ECBC.

Efficacy of Lamp (with or without ballast) is the lumens produced by a lamp/ballast system divided

by the total watts of input power (including the ballast), expressed in lumens per watt.

Lighting which is exempted under Section 7.1 of ECBC is mentioned below:

a) Emergency lighting that is automatically off during normal building operation and is powered by

battery, generator, or other alternate power source

b) Lighting in dwelling units

High-efficiency lighting components, such as T-8 fluorescent lamps and electronic high-frequency

ballasts, make a significant impact on lighting energy and its associated costs by reducing the kW

required for illuminating the buildings. Lighting controls, on the other hand, affect lighting energy by

directly reducing lighting’s time of use. Some lighting control techniques, such as using photocell

controls in building spaces that incorporate day lighting, not only reduce lighting time of use but also

decrease lighting power and may even reduce the average cost of electricity by eliminating some

lighting kW during peak demand periods.

Interior Lighting Power

For interior lighting power requirements, the installed lighting power used by luminaries, including

lamps, ballasts, current regulators, and central devices is first calculated using the procedure that will

be discussed under the head Luminaire Wattage. The calculated installed power is then compared

with the maximum permissible Interior Lighting Power Densities, specified for a number of building

types (Building Area Method) or building space functions (Space Function Method). These shall be


34 | P a g e

discussed in further details under their specific heads.

Building Area Method

This method is used to calculate total watts per square meter for the entire building based on its type.

In order to show compliance by this method, sum of the interior lighting power for all the areas in the

building should not exceed the total watts. The first step is to identify the allowed power lighting

density for appropriate building area types listed in Table 2 below. If more than one listed type

applies to the area, the more general building area type should be used. The second step is to

calculate the gross lighted floor area for each of the building area types (this can be done using the

building plans). Finally, the last step is to multiply the allowed watts per square meter listed for each

selected building type by the corresponding lighted floor areas to determine the allowed light power

allowance.

Total Area of the Building = 21286 sqm

Permissible Light Power Density (LPD) = 9.5 W/sqm

Total Permissible Wattage for Lighting in Interior Areas = 9.5 x 21286 w

= 202217 W

= 202 kW

Provisions for Lighting as per Report = 37 kW

Building Lighting Systems and Controls are Complying with the ECBC Requirements.


35 | P a g e

Installed Interior Lighting Power

As per the Code:

The installed interior lighting power calculated for compliance with the prescriptive requirements of

the ECBC shall include all power used by the luminaries, including lamps, ballasts, current regulators,

and control devices except as specifically exempted in Section 7.1 of the Code.

Exception to above:

If two or more independently operating lighting systems in a space are controlled to prevent

simultaneous user operation, the installed interior lighting power shall be based solely on the lighting

system with the highest power.

Luminaire Wattage

The ECBC requires that Luminaire wattage be incorporated into the installed interior lighting power

calculation as follows:

a. The wattage of incandescent luminaries with medium base sockets and not containing permanently

installed ballasts shall be the maximum labeled wattage of the luminaries

b. The wattage of luminaries containing permanently installed ballasts shall be the operating input

wattage of the specified lamp/ballast combination based on values from manufacturers’ catalogs or

values from independent testing laboratory reports

c. The wattage of all other miscellaneous Luminaire types not described in (a) or (b) shall be the

specified wattage of the luminaries

d. The wattage of lighting track, plug-in bus way, and flexible-lighting systems that allow the addition

and/ or relocation of luminaries without altering the wiring of the system shall be the larger of the

specified wattage of the luminaries included in the system or 135 W/m (45 W/ft). Systems with

integral overload protection, such as fuses or circuit breakers, shall be rated at 100% of the maximum

rated load of the limiting device

Exterior Lighting Power

Lighting power limits are specified for building exterior lighting applications in Table 4. The connected

lighting power for these applications must not exceed these allowed limits. In addition, trade-offs

between applications are not permitted.


36 | P a g e

Electrical Power

1. Maximum transformer losses shall not exceed as mentioned below

The Model of the 1000 KVa Transformer selected is confirming to the requirements of Table 7-1.

Hence the Project complies with the ECBC requirements for Electrical power

7.2.2 Energy Efficient Motors Motors shall comply with the following:

(a) Three phase induction motors shall conform to Indian Standard (IS) 12615 and shall fulfil the

following efficiency requirements:

i. ECBC Buildings shall have motors of IE 2 (high efficiency) class or a higher class

ii. ECBC+ Buildings shall have IE 3 (premium efficiency) class motors or higher class

iii. SuperECBC Buildings shall have IE 4 (super premium efficiency) class motors

(b) Motors of horsepower differing from those listed in the table shall have efficiency greater than

that of the next listed kW motor.

(c) Motor horsepower ratings shall not exceed 20% of the calculated maximum load being served.

(d) Motor nameplates shall list the nominal full-load motor efficiencies and the full-load power

factor.

All motors selected for the project as per the report, are IE 3 class efficiency or Higher. Motors are

found to comply with ECBC requirements

7.2.3 Diesel Generator (DG) Sets BEE star rated DG sets shall be used in all compliant buildings. DG sets in buildings greater

than 20,000 m2 BUA shall have:


37 | P a g e

(a) minimum 3 stars rating in ECBC Buildings

(b) minimum 4 stars rating in ECBC+ Buildings

(c) 5 stars rating in SuperECBC Buildings

3 Nos. of 415V, 3 Phase, 50 Hz, 650kVA DG sets with AMF,ALS and Auto Load Management. All DG

Sets are 3 Star Rated Sets confirming the ECBC Stipulations.

7.2.4 Check-Metering and Monitoring At Building mains, installed meters must be capable of monitoring Energy use (kWh), Energy

Demand (kW) and total Power Factor on an hourly basis. For sub-meters installed at building

services, the following metering requirements must be complied with:

(a) Services exceeding 1,000 kVA shall have permanently installed electrical metering to record

demand (kVA), energy (kWh), and total power factor on hourly basis. The metering shall also display

current (in each phase and the neutral), voltage (between phases and between each phase and

neutral), and total harmonic distortion (THD) as a percentage of total current.

(b) Services not exceeding 1,000 kVA but over 65 kVA shall have permanently installed electric

metering to record demand (kW), energy (kWh), and total power factor (or kVARh) on hourly basis.

(c) Services not exceeding 65 kVA shall have permanently installed electrical metering to record

energy (kWh) on hourly basis.

Sub-metering requirements for different services are outlined in Table 7-3.

All meters and Sub Meters are proposed for Services as per Table 7-3 requirements confirming the

ECBC Stipulations.

7.2.5 Power Factor Correction All 3 phase shall maintain their power factor at the point of connection as follows:

a. 0.97 for ECBC Building

b. 0.98 for ECBC+ building

c. 0.99 for Super ECBC building

A Capacitor Bank has been designed to assure Power Factor Correction and Maintain the Power

Factor more than 0.99, confirming the ECBC Stipulations.

7.2.6 Power Distribution Systems The power cabling shall be sized so that the distribution losses do not exceed


38 | P a g e

a. 3% of the total power usage in ECBC Buildings

b. 2% of the total power usage in ECBC+ Buildings

c. 1% of the total power usage in SuperECBC Buildings

All cabling systems and cable sizes are designed to keep losses less than 3% of the total usage,

thereby confirming the ECBC Stipulations.

7.2.7 Uninterruptible Power Supply (UPS) In all buildings, UPS shall meet or exceed the energy efficiency requirements listed in Table 7-5. Any

Standards and Labeling program by BEE shall take precedence over requirements listed in this

section

Most UPS proposed in the Project are less than 20 kVA and are designed for 95% efficiency at 100%

loading, thereby confirming the ECBC Stipulations.

7.2.8 Renewable Energy Systems All buildings shall have provisions for installation of renewable energy systems in the future

on rooftops or the site.

7.2.8.1 Renewable Energy Generating Zone (REGZ) (a) A dedicated REGZ equivalent to at least 25 % of roof area or area required for generation of

energy equivalent to 1% of total peak demand or connected load of the building, whichever is less,

shall be provided in all buildings.

(b) The REGZ shall be free of any obstructions within its boundaries and from shadows cast by

objects adjacent to the zone

(c) ECBC+ and SuperECBC building shall fulfil the additional requirements listed in Table 7-6 and

Table 7-7 respectively.

A dedicated 100 kWp Solar Power generation Plant is proposed on the Roof Top covering almost

50% Roof Area and feeding 10% of the Contract Demand thereby exceeding the ECBC Stipulations.

ECBCComplianceReport SIB Kakkanad

39 | P a g e

7.2.8.2 Main Electrical Service Panel Minimum rating shall be displayed on the main electrical service panel. Space shall be

reserved for the installation of a double pole circuit breaker for a future renewable electric

installation.

Rating shall be displayed on the Main Electrical Panel and the space for the Double Pole Circuit

Breaker are proposed to be provided as per the ECBC Stipulations.

7.2.8.3 Demarcation on Documents The following shall be indicated in design and construction documents:

(a) Location for inverters and metering equipment,

(b) Pathway for routing of conduit from the REGZ to the point of interconnection with the

electrical service,

(c) Routing of plumbing from the REGZ to the water-heating system and,

(d) Structural design loads for roof dead and live load.

Drawings and documents are proposed to be maintained as per the ECBC Stipulations.

All Mandatory and Prescriptive Compliances required in the Lighting and Controls Sections are

followed as per ECBC requirements.

ECBCComplianceReport SIB Kakkanad

40 | P a g e