+ All Categories
Home > Documents > EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a...

EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a...

Date post: 07-Jul-2020
Category:
Upload: others
View: 3 times
Download: 0 times
Share this document with a friend
30
For internal circulation of BSNL only E4 E4-E5 CIVIL E5 CIVIL (TECHNICAL) (TECHNICAL) Electrical Services Planning Electrical Services Planning
Transcript
Page 1: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

For internal circulation of BSNL only

E4E4--E5 CIVIL E5 CIVIL

(TECHNICAL) (TECHNICAL)

Electrical Services PlanningElectrical Services Planning

Page 2: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

WELCOME

• This is a presentation for the E4-E5 Civil Technical

Module for the Topic: Electrical Services Planning.

• Eligibility: Those who have got the Up-gradation to from

E4 to E5.

• This presentation is last updated on 27-04-2011.

• You can also visit the Digital library of BSNL to see this

topic.

For internal circulation of BSNL only

Page 3: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

For internal circulation of BSNL only

AGENDA

Various Electrical Services provided in Telecom

Installations.

Precautions in planning by Architects to

incorporate the various provisions of Electrical

Services

Page 4: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Electrical Services Planning

• As per departmental practice, a requisition is made by

user to the Architect for preparing the preliminary

drawings.

• The Architect unit is supposed to provide suitable space

for various electrical services.

• At this stage electrical personnel should interact with

architect and ensure that all their requirements are met.

For internal circulation of BSNL only

Page 5: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Electrical Services

The various Electrical services to be provided in Telecom

buildings are as under:

1. Sub-Station 2. Engine Room

3. A/C Plant 4. Lifts

5. Fire Detection 6. Fire Fighting

7. Telephones Conduits

8. Main Board/Rising Main for Electrical Distribution for L&P

9. LT Electrical Panels

10. Power Distribution with the help of Cables/Ducts in buildings

11. El and Fans 12. Compound Lighting

13. Water Supply Pumps 14. Lightening Conductors

15. Miscellaneous

For internal circulation of BSNL only

Page 6: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Sub-Station

• The internal partitions of the Sub-station should

be finalized taking special care that the HT Panel,

the transformers and LT Panels can be properly

accommodated with required clearances.

• These spaces should be so allocated that there is

least cris-crossing of cables/ducts, (ref. sketch 1)

For internal circulation of BSNL only

Page 7: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Sub-Station

Rolling Shutters

• Rolling shutters of about 2.4. mtrs. in height and

2.2 mtrs. in width are normally adequate except

in cases it is proposed to install transformers of

capacities higher than 500 KVA.

For internal circulation of BSNL only

Page 8: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Sub-Station

Ventilation

• Efforts should be to get permanent type of ventilation in

the sub station area which can be attained by providing

grills/louvers at lower level on the internal walls and at

higher level on the external walls.

• Concrete jallies can be provided in place of present

practice of providing closed and openable type ventilators.

• For fire protection it is essential that HT Panels and

Transformers are housed in enclosed spaces.

• In case of transformers we can have the partition walls

upto a level of 9 ft. leaving some space on top for

ventilation.For internal circulation of BSNL only

Page 9: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Sub-Station

Ramp/Platform

• In some cases where road level is lower than the sub-

station room level ramp/platform is provided for

transportation of transformers etc.

For internal circulation of BSNL only

Page 10: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Sub-Station

Earthing

• In the beginning itself we should interact with

Architect and see that some kachha space is

provided near the substation.

For internal circulation of BSNL only

Page 11: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Engine Room

• It should be checked that the space provided is

suitable for installing 2 number of Engine

Alternators.

• The exact space requirements will depend upon

the size of the Engine to be installed.

For internal circulation of BSNL only

Page 12: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Engine Room

Ventilation

• Most of the points mentioned in case of

substation are applicable here also.

• The openings for inlet of fresh air should

normally at lower level and their area should be

about 1 & 1/2 times the radiator area.

For internal circulation of BSNL only

Page 13: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Engine Room

Door Sizes :

• Same as in case of Substations.

Earthing:

• Same as in case of Substations.

Ramp/Platform:

• Same as in case of Substations.

For internal circulation of BSNL only

Page 14: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Air Conditioning

• The switch room and A/C Package Room should

be so located that maximum throw required is not

more than 11 meters.

• All A/C spaces should be close to each other to

reduce dueling.

For internal circulation of BSNL only

Page 15: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Air Conditioning

Condenser space:

• We should have balcony for installing condensers

adjacent to the package room.

• However, it should be ensured in the preliminary

drawings. (Ref. Sketch 2).

• This arrangement reduces the cost substantially

as the length of refrigerant lines is reduced.

For internal circulation of BSNL only

Page 16: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Lifts• The number of lifts should be worked out on an approximate

basis and the number of lift wells provided by the Architect

should be checked.

• From service point of view it is important that all the lifts are

housed in one lobby.

• The Lift well dimension should be adequate for required size

of lift.

• The machine room ventilation should be carefully planned

We should insist for permanent type of ventilation as no

persons attends the machine room. (Sketch-3)

For internal circulation of BSNL only

Page 17: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Lifts

• Lift machine room ventilation should be carefully planned

keeping all aspects mentioned in case of Substation in

view.

• Provide permanent type of ventilation as no persons

attends the machine room is ventilated with the help of

windows and open able/ fixed type ventilators. These do

not serve the purpose. (Sketch-3)

For internal circulation of BSNL only

Page 18: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Main Board, Fire Detection & Telephone Risers

• For housing the above items risers are required.

• Efforts should be make to get them properly

integrated into the building drawings.

• A recommended solution is given in Sketch 4.

For internal circulation of BSNL only

Page 19: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Fire Fighting

• For fire fighting we require an underground Tank, a pump

room and space for hydrant pipes and landing valves and

hose reels besides yard Hydrants.

• In the beginning itself these aspect should be examined and

decided. Ultimate height of the building to be considered

even though initially we may be constructing only partly (Ref.

sketch 5).

• A fire control room should also be planned near the

entrance.

For internal circulation of BSNL only

Page 20: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Water Supply Pumps

• Same as in case of Fire Fighting Pumps.

For internal circulation of BSNL only

Page 21: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Cable Trays/Ducts

• The method of taking power from substation/engines

to various points like power room. A/C package room,

should be examined.

• In case it is decided to have ducts, the same should

be marked in the drawing after deciding route

judiciously.

• Cutouts, their locations and sizes should be worked

out.

For internal circulation of BSNL only

Page 22: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Compound Lighting

• Pipes for crossing roads should be left.

• Also location of poles can enhance the beauty

of building if Architects are also involved in

finalization of their location.

For internal circulation of BSNL only

Page 23: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Lightening Conductor

• The Earthing locations should be identified in the

layout drawing.

• Efforts should be made that these do not come in

the main elevations.

For internal circulation of BSNL only

Page 24: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Exhaust Fans

• Exhaust fans are normally installed in Substation

Room, Engine Room, Toilets, Power Room,

Battery room, Machine room and Basements.

• It can be appreciated that exhaust fan will be of

no use if it is installed over a window. It will only

short cycle the air and the room will remain

unventilated.

For internal circulation of BSNL only

Page 25: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Ventilation of Power Room and Battery Room

• As in case of Sub-station and Engine Rooms we

should try to ensure cross ventilation in these

rooms by providing openings on the opposite wall

at a lower level.

• Sometimes, providing a gap between the floor and

door bottom can also add to effective ventilation.

For internal circulation of BSNL only

Page 26: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Layout of Sub-Station

For internal circulation of BSNL only

Page 27: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Details of A.C. Condensers

For internal circulation of BSNL only

Page 28: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Ventilation of Machine Room

For internal circulation of BSNL only

Page 29: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

Electrical Risers

For internal circulation of BSNL only

Page 30: EE44-E5 CIVIL E5 CIVIL (TECHNICAL)training.bsnl.co.in/DIGITAL_LIBRARY_SOURCE... · • This is a presentation for the E4-E5 Civil Technical Module for the Topic: Electrical Services

For internal circulation of BSNL only


Recommended