electrical sub dwg1.4.5-layout1

450

500

7.3 One 16 A switched socket outlet shall be positioned as shown in Section B-B of the

The fitting shall have a minimum Ingress Protection rating of IP 55.

7.4 1200 mm fluorescent, double tube fitting (40 W rating) shall be positioned as shown.

7.2 DB shall be six-way. The main incoming supply shall be protected using a 32 A double Pole

7.1 A 25 mm PVC conduit with draw wire installed shall be provided from distribution board

5.2 Roof and floor slab shall be as specified by a Structural Engineer

5.4 Floor shall be screeded level with 50 mm thick 1:3 mix.

5.7 Floor slab in transformer bay shall carry a mass of 6 000 kg.

6.3 Two lifting slots 50 mm x 100 mm shall be provided in each section.

6.4 Each section shall not exceed a length of 600 mm.

Permanent vehicle access to substation, 10 000mm wide x 3000mm high

6.1 All trenching shall be covered with approved resocrete infill panels.

6.2 Recess around trench edges shall be 25 mm deep and 40 mm wide.

6.5 Pvc cable ducts in accordance with SANS 61 386-1 and SANS 61 386-24 shall be used

7.0 INSTALLATION WIRING

5.0 ROOF, WALLS AND SLAB

The recess shall be achieved using galvanized angle iron(refer to Trench recess and

under all hardened surfaces to boundary.

6.0 TRENCHING

5.1

shall be provided.

1.0 ACCESS TO SUBSTATION

7.5 The LV supply for DB shall, as far as possible, be provided by eThekwini Electricity.

7.6 The DB, all PVC piping, socket outlet and light switch shall be recessed within the

Two-way switching between transformer bay and M.V. switch room shall be provided.

6.6 Cable entry to be front entry to terminate onto road frontage as indicated.

5.6 Floor slab in MV switch room shall carry a mass of 1 000 kg per m of floor.

5.5 Floor to be level within +/- 1mm/m sq.

5.8 Where embankment's slope towards the building, the walls shall be waterproofed.

6.8 Number of ducts to be installed at cable entry are, 4 x ∅ 160mm and 2 x ∅ 100mm as indicated.

These ducts shall be capped to prevent any flow of ground water into trenches.

Din type fuse holder with neutral link, fused at 32Amp, 1x 16Amp fuse holder, fused at

drawing. The normal switched socket outlet shall be labeled "Use with portable

bricks an plaster.

11.0 CONSUMER BUS TRUNKING UNIT

11.1 One unit shall be built in as shown with the flange sides on the Consumer Meter room side.

11.2 Busbar trunking unit maybe positioned between a distance of 200 mm and 1200 mm from

11.3 Busbar trunking shall be positioned at a minimum height of

11.4 The current rating shall be as indicated in note 2 of the consumer bus trunking drawing.

drain detail' on drawing).

16Amp for the plug circuit, and 1 x 10Amp fused holder,fused at 10 Amp for light circuit.

1000mm above finished floor level.

The substation building shall be built using motar and clay bricks.

5.3 Internal roof slab and walls shall be plastered and painted white.

9.2 All vents on duct shall be covered with 10mm hot-dip galvanized wire mesh or

9.0 VENTILATION

Galvanised cable tray in transformer bay to be installed by contractor after transformer

similar (not gauze),on inside.

9.1 The transformer bays shall be vented as indicated.

has been positioned. The cable rack shall be a 600 mm wide heavy duty tray. The position,

Length and route shall be agreed upon between the Consumer's contractor and the local

eThekwini Depot Superintended or Clerk of Works.

10.0 CABLE TRAY

(DB) to the cable trench.

2.0 MEDIUM VOLTAGE SWITCH ROOM

Size: 3 800 mm (Length) x 2 050 mm (width) x 3 100 mm (Height).

8.3 All doors shall open outwards. Open door retainers shall be fitted to hold the doors

locking bolt of the barrel bolt and three pointlocking mechanism of the doors when in

8.4 Galvanised steel pipes shall be embedded into the concrete floor to accept the floor

8.2 D3 - Centre opening bottom-vented double door in two equal halves , shall have a clear

8.0 DOORS

8.5 All doors shall be adequately bonded and earthed via a flexible braided earth conductor.

8.6 Padlocks (SS) shall be fitted to medium voltage switch room door D4, transfomer bay

the closed position.

opening of 2 000 mm wide x 2 400 mm high and shall be manufactured as per drawing.

door D3 (obtainable from eThekwini Electricity's Customer Services Division).

in the open position.

The minimum cross sectional area of the earth conductor shall be less than 2,5 mm. This

earth conductor shall be be connected to the main substation earth bar which is housed

within the cable trench . The earth conductor shall be drawn trough a 20 mm PVC conduit.

This conduit shall be recessed within the concrete floor.

SPECIFICATIONS:

3.0 TRANSFORMER BAY

Size: 3900 mm (Length)x 2 300 mm (width) x 3 100 mm (Height).

9.3 In transformer bay if cross ventilation is not possible through D3 door and rear

ventilation,a mechanical fan (conection driven) shall be mounted on the wall of the

9.4 The mechanical fan and any associated equipment shall either be manufactured of 3CR12

steel,or stainless steel (marine grade 316) or hot-dip galvanized mild steel for heavy

2

substation.

duty application.

adjacent wall.

earth leakage."

4.0 METER PANEL

8.1 D4 Single door , shall have a clear opening of 900 mm wide x 2 400 mm high,and shall

be manufactured as per drawing MRD.

6.7 All trenches shall slope towards a drain outlet pipe.The slope shall be at least 1/30

gradient. The drain outlet pipe shall be connected to the storm water system in

accordance with the National Building Regulations and Municipal By-laws. The direction

of drainage shall be in accordance with the Storm Water Engineers detail.

4 x Ø160mm PVC DUCTS

2 x Ø110mm PVC DUCT

refer to note 6.8

light fitting

2way light

switch

2way light

switch

DB (refer to note 7.6)

light fitting

CB

CB

300

30

0600 w

ide,

900 deep

30

0

300

300

300

vented

refer to note 7

TRENCH DRAINAGE POINT

(SEE NOTE 6.7)

600 wide,

900 deep

D

D4

D3

scale : 1:50

PLAN VIEW



refer to note 6.8

220

900 220 1260 7852000

2734 3347

220 2734 3347 220

6081

22

022

0

D

36

15

100

220

696 220

6522

6081

600

440

0

115

10

00

17

77

23

24

CU

TF

IEL

D P

LA

CE

W

E

S

T

R

I

D

I

N

G

R

O

W

SITE PLAN - 1:1000

W

E

S

T

R

I

D

I

N

G

R

O

W

PR

OP

OS

ED

S

UB

ST

AT

IO

N

1x b

ulk w

ate

r m

ete

r &

fire

ho

se

re

els

tw

in

b

oo

ste

r co

nn

ectio

n

po

st b

oxe

s

sto

rm

wa

te

r g

rid

gm

33

34

35

37

36

38

40

39

41

42

41

23

32

16

23

22

21

20

19

18

17

15

14

13

31

30

29

28

27

26

25

24

12

11

10

97

86

5

PROPOSED SUBSTATION

scale : 1:30

DOOR - D4

scale : 1:30

DOOR - D3

40

25

NGL

34

10

scale : 1:50

SECTIONAL ELEVATION A-A

GRD FLR

90

0

20

0

100.000

SUBSTATION

LEVEL

103.410

ROOF

LEVEL

90

0

859

shown dotted behind

stormwater pipe connected

to stormwater drainage

(direction of drainage to engineer`s

details (refer to note 6.7)

vented - (See note 9)

BUS COUPLING

TO ENGINEER

SPECIFICATION

TO BASEMENTPANEL

24402018

600

90

0



refer to note 6.8

115

115

90

0

scale : 1:50

SECTIONAL ELEVATION B-B

NGL

16 A switched

(refer to note 7.3)

31

00

1911 1354

50

0

15

00

socket outlet see

NGL

LIGHT FITTING

shown dotted beyond

4xØ160mm pvc ducts

2xØ100mm pvc ducts

(refer to note 6.8)

904 115115

(refer to note 7.6)

DB

TYPICAL DETAILS FOR DOORS

Scale - 1:30

Section X-X

Scale - 1:40

100.000

SUBSTATION

LEVEL

103.410

ROOF

LEVEL

scale : 1:50

SECTION CC

34

10

LIGHT FITTING

20

0

NGL

1800

GROUND FLOORMETER ROOM

15

00

BUS COUPLING

RISING MAIN BUS COUPLER



refer to note 6.8

152

50

0

MAIN CIRCUIT BREAKER

CIRCUIT BREAKERTERMINATION

SECTORIALCONDUCTORS

TUFFNOL SUPPORT INSULATOR

MAIN LV PANEL

2mm MILD STEELENCLOSURE

WATER PROOFSEAL

VOID PENETRATION

TERMINATIONHATCH

HEAT SHRINKINSULATED

MUNICIPAL SIDETERMINATION ENDS

FIRST FLOOR

CONCRETE SLAB

TERMINATIONCONSUMER SIDE

98.200

SUBSTATION

LEVEL

18

00

scale : 1:50

X

D3

X

ONE COURSE

BRICKWORK

BELOW

INTERNAL

FLOOR

FRONT ELEVATION

CABINET HOOKS ON SIDES OF DOORS

SUBSTATION

LEVEL

ROOF

LEVEL

X

BACK ELEVATION

scale : 1:50

METER ROOM DOOR

2000

1700

SECTION D-D

BUS COUPLING

RISING MAIN BUS COUPLER

150

250

1800

scale : 1:50



refer to note 6.8

1500

DB

1500

(refer to note 7.6)

1802

320 Smith Street1102 Mercury HouseDurban4000Telephone: 031 3012253Email: ugesiafricaconsulting.co.zaWebsite: www.ugesiafrica.co.za

Consultant Signature:___

Client Signature:__

Client:

Project By:

Title:

Sub-Station LayoutLevel:

GroundRevision:

Rev 01Scale:

As ShownDwg. No:

Drawn By:

ATANG MAPHELAChecked By:

Zaid AllyDate:

15-07-2016Sheet No.:

01 of 01

Rev. No: Description Of Project Date

BLUE HORIZONPTN 179(OF 136) OF THE FARMRIDING NO:151523A CUTFIELD PLACE , SHERWOOD

BH-S/S-2016-05

electrical sub dwg1.4.5-layout1

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