1. Slides on Drawing Lecture-1
Demonstration on drawing
‘Fittings and Fixture layouts’,
‘Conduit layouts’ and
‘Switchboard connection diagrams’
of simple architectural structures.

2. Electrical Design of a Civil Layout: Steps to be followed (0)
The input layout to the
Electrical Engineer to
perform Electrical
Design.
Door

3. Electrical Design of a Civil Layout: Steps to be followed (1)
Fittings &
Fixture Layout:
Demonstration of exact
location for different
fixtures to be used. 1 F1 C1
TS1
- -
TV1 F2 A4 2 A2 A1 A3
SS3
SS1
SS2
Let’s find out from the symbol sheet what different symbols represent and write it in your sheet

4. Electrical Design of a Civil Layout: Steps to be followed (2)
Conduit Layout:
Demonstration &
optimization of the
electrical connectivity
between source
of energy and loads. 1 2 F L S
- - C1 C2 C6 C4

5. Electrical Design of a Civil Layout: Steps to be followed (3)
SS1
SB 1 A2 A1 F1 R C1
TS1
SS2 A4
2x1.5mm2 A3 F2
SS3
SB 2
2x2.5mm2
Switchboard Connection
Diagram:
Demonstration of
detailed connections
between each and
every loads under
a particular switchboard.

6. Electrical Design of a Civil Layout: Steps to be followed (4)
Distribution Board
Connection Diagram:
Demonstration of detailed
connection between main
source of energy and
different switchboards with
proper safety equipments. )
SB 1
SB 2
SB 3 10 15 40

7. Fittings & Fixture Layout
Exact location (3D information) for different Fixtures are demonstrated.
The input information is the ‘Purpose of use’ of a particular area in civil layout (i.e. whether it’s a bedroom or a kitchen).
Sufficient amount of lighting, cooling and connectivity for external loads (i.e. 2/3 pin sockets) need to be provided.
Location of the switchboard is an important issue as well.
Keep the switch close to the entrance when people stay inside the room
For store and others you may keep it outside.

8. Conduit Layout
The target is to provide an optimum design from both economic and electrical point of view.
There are many scopes to improve this, so try to be innovative.
Calculate all the loads for the fixtures and find suitable wire to be used.
Choose appropriate conduit from tables.
Always remember that conduits are more expensive than wires. So the layout should focus more to optimize use of conduits, the length of conduits.
Try to avoid coarse wires if possible.

9. Switchboard Connection Diagram
Demonstration of each and every switchboard with connectivity to different loads through proper switching methods.
Explaining which outlet is governed by which switchboard.
Representation of exact wire size and numbers.
Representation of safety equipments (i.e. fuses & circuit breakers ) with proper ratings.

10. Distribution Board Connection Diagram
Demonstration of each and every switchboard with connectivity to the main Distribution Board.
It’s not necessary to draw conduits to each switchboard. In large designs, only one conduit may carry the wires for a group of swithcboards.
Demonstration of protective devices with proper current ratings.
Location of MDB/SDBs are significant issue.

11. Assignment 1
We’ll have to perform the electrical design of a single room which might be used as a store room.
4/16/2017

12. Fittings and Fixture Layout (Example 1)
LEGEND A1
Switchboard (Concealed)
Wall Bracket Light at Lintel Level 1

13. Conduit Layout (Example 1)
Why arrow? L
LEGEND
Switchboard (Concealed) C1 L
Wall outlet at Lintel Level 1
C1=2x1.5mm2

14. Switchboard Connection Diagram (Example 1)
SB 1
2x1.5mm2 A1

15. Assignment 2
Let’s add some additional fixtures so that the store of Assignment 1 can be used as living purpose as well.
4/16/2017

16. Fittings and Fixture Layout (Example 2)
LEGEND A1
Switchboard (Concealed) A2
Wall Bracket Light at Lintel Level 1 F1
Ceiling Fan
4/16/2017

17. Conduit Layout (Example 2)
LEGEND C1
Switchboard (Concealed) L
Wall outlet at Lintel Level L F C1 C3 F
Ceiling Fan outlet 1
C1=2x1.5mm2
C3=3x2x1.5mm2
4/16/2017

18. Switchboard Connection Diagram (Example 2)
SB 1 R
2x1.5mm2 A1 A2 F1

19. Assignment 3
Let’s modify the above room so that it can be used as a complete bed room.
4/16/2017

20. Fittings and Fixture Layout (Example 3)
LEGEND
Switchboard (Concealed)
- -
TV1 A1
TS1
Wall Bracket Light at Lintel Level A2
Fluorescent Wall Light Fitting 1
Ceiling Fan F1 ST
2-Pin 5A Socket at Table Height Level
ST1
2-Pin 5A Socket at Skirting Level for TV TS T1
- - TV
2-Pin TV Antenna Socket

21. Conduit Layout (Example 3)
LEGEND L
- -
Switchboard (Concealed) S C1 L
Wall outlet at Lintel Level C1 F
Ceiling Fan outlet L F C2
Socket outlet at Skirting Level C6 S 1 C2 T
Socket outlet at Table Height Level
- -
2-Pin TV Antenna Socket T L C1
C1=2x1.5mm2
C2=4x1.5mm2
C23=6x(2x1.5mm2)

22. Switchboard Connection Diagram (Example 3)
SB 1 R
2x1.5mm2
TS1
ST1 T1 A1 A2 F1

23. Assignment 4 Now, let’s perform electrical design for the
two-room layout shown below.
4/16/2017

24. Fittings and Fixture Layout (Example 4)
LEGEND F2
Switchboard (Concealed) A3 A4
Wall Bracket Light at Lintel Level
SS3 2
Fluorescent Wall Light Fitting
SS2 A1
Ceiling Fan
SS1 SS
2-Pin 5A Socket at Switchboard (SB) Level F1 1 A2
2-Pin 5A Socket at Skirting Level for TV TS
TS1
- -
TV1
- - TV
2-Pin TV Antenna Socket T1

25. Conduit Layout (Example 4)
LEGEND C1
Switchboard (Concealed) L F L C2 L
Wall outlet at Lintel Level C1 S 2 F
Ceiling Fan outlet S L S
Socket outlet at Skirting/SB Level C4 C2 S
C1=2x1.5mm2 1 L F C1
C23
C2=4x1.5mm2 C2
C4=2x2.5mm2
- - S L
C23=2x(6x1.5mm2) C1

26. Switchboard Connection Diagram (Example 4)
2x2.5mm2
SB 1
SB 2 R R
2x1.5mm2
SS1
SS2
TS1 T1 A1 A2 F1
SS3 A3 A4 F2

27. End of Slides on Drawing Lecture-1