OVERHEAD CONSTRUCTION MANUAL EARTHING CONCRETE POLE · OVERHEAD CONSTRUCTION MANUAL EARTHING CONCRETE POLE ... Transformer concrete pole common earth ... 1638 1622 1624/2 1586 TRANSFORMER

OVERHEAD CONSTRUCTION MANUAL

EARTHING CONCRETE POLE Go to SECTION INDEX Back to MAIN INDEX

DESCRIPTION PAGE PAGE

INDEX

C

24/8/07

24 1640 1

HARD COPYUNCONTROLLED

C. Noel

C.Avenell

B

Sh 1

CONSTRUCTION CONSTRUCTION

L. Burton

DESCRIPTION

EARTHING CONCRETE POLE

deep drilled

ECPT/COM

EA

EAR

ECPT/COM/DD

EADDC

EC/HVE

1638

1622

1586

CONSTRUCTION

TRANSFORMER CONCRETE POLE EARTHING

HV EARTHING CONCRETE POLE

Construction code guide - Transformer & OHEW

EA

EAR

Overhead earth wire common earth - New pole

HV earth

Transformer concrete pole common earth

Transformer concrete pole common earth

1849

EA

EAR

1850EC/OHX/COM Overhead earth wire common earth - Existing pole

EA

EAR

EA

EAR

EC/OHX/SEP

New pole

Overhead earth wire separate earth grading ring

Existing pole

Overhead earth wire separate earth grading ring

EC/OH/SEP

EC/OH/COM

1852/1

1852/2

1624/1

deep drilled

Transformer concrete pole common earth 1624/2

C 2.2.16

9.4.13

A ORIGINAL ISSUE

DRAWN

DATE

PASSED

APPROVED

Ergon Energy Corporation Ltd

ABN 50 087 646 062

OVERHEAD DISTRIBUTION

FILE: 5Page

L. Burton

EC/PT/COM/DD

EARTH TRANSFORMER

PT = Pole Transformer COM = Common

TYPE

DD = Deep drilled

(Omit where driven rods used)

SYSTEM

CONSTRUCTION CODE GUIDE

detail drawings in this manual.

appears on relevant construction

Code shown within dashed box

A

24 1638 11638

EXAMPLE:-

THREE PHASE TRANSFORMER EARTHING CONCRETE POLE - CONSTRUCTION CODE

EC = Earth Concrete Pole

EC/PT/COM/DD = Earth Concrete Pole, Pole transformer with common earth system (CMEN), deep drilled.

22.8.07HARD COPYUNCONTROLLED


C. Avenell

C. Noel

B 7.3.13

B

TRANSFORMER & OHEW

EARTH

COM = Common

SYSTEM

detail drawings in this manual.

appears on relevant construction

Code shown within dashed box

A

EXAMPLE:-

EC = Earth Concrete Pole

OVERHEAD EARTH WIRE CONCRETE POLE - CONSTRUCTION CODE

EC/OH/SEP

SEP = Separate

POLE TYPE

OH = Overhead New Pole

OHX = Overhead Existing Pole

EC/OH/SEP = Earth Concrete Pole, Overhead on New Pole with Separate Earthing System.

DRAWN

DATE

PASSED

APPROVED


A ORIGINAL ISSUE

ABN 50 087 646 062


Dwg ShFILE: 5

TRANSFORMER COMMON EARTH

MATERIAL

ASSY DESCRIPTION QTY

140-14

141-18 2

162424 1624 1

2080-1 Downlead cable / transformer earth HV

Earth butt concrete pole

1

1

1

19.9.07

L. Burton

Earth additional - deep drilled AR

MATERIAL - ADDITIONAL EARTH


124-1

12081-7

Cable insulated annealed Cu. 70mm†

DEEP DRILLED

Earth HV (35mm†) to concrete pole - deep drilled

2080-10


Lug, compression 70mm† M12


2.

NOTES:

1.Earthing to run in direction of mains.

B 27.2.14

C

C. Avenell

C. Noel

C 11.11.15

DO NOT ADD WATER.

at 20m, then the additional earthing must be spaced at least 40m.

depth of adjacent earthing electrode. For example if adjacent earthing is

4. The additional earthing if required must be spaced at least two times the

immediately with dry earth enhancing compound.

- The holes are to be refilled

- A drilling rig using nominal 75mm bit is required.

releases water content - similar to mud.

proportion of water so that when squeezed by hand it holds its form and

- Good moisture is defined as extracted bore hole soil containing adequate

minimum of 20m unless good moisture is reached.

- 35mm† bare copper cable deep drilled to a

3. H.V. & L.V. electrodes

- Concrete pole = 2.0m

- Bare earth cable = 2.0m

- Earth rod = 2.0m

manholes, pillars, pits etc:

Provide the following minimum separation to communications



- Earth rod = 0.3m

plastic sheathed / jacketed or in plastic conduit:

Provide the following minimum separation to communications cable

SEPARATION FROM COMMUNICATIONS:

and additional earthing added as necessary.

completion of work on site the installation shall be tested after 7 days

earthing is installed. Where specified resistance is not achieved prior to

Specified earth resistance may not be achieved for some days after

DEEP DRILLED EARTH TESTING:

For separation from other communications assets refer Standards Section.

1

A ORIGINAL ISSUE

DRAWN

DATE

PASSED

APPROVED


ABN 50 087 646 062


Dwg ShFILE: 5

L.V.

H.V.

f

f

TRANSFORMER COMMON EARTH

Caution tape

(Additional)

Construction Type

162424 1624 2

Assy 2080-10

F

141-18

140-14 and

Assy Selection

F

F

19.9.07

L. Burton

F

f

F

f

Additional earthing

if required

Assy 124-1

4.0m

F

ECPT/COM/DD

EADDC

DEEP DRILLED

Assy 2081-7

Assy 2080-1


Tank

To Transformer

Bushing

L.V. Neutral

To Transformer


1 ohm

Max.

CONNECTED

L.V. NEUTRAL

N

F

C. Avenell

C. Noel

Construction Code.

Dwg. 1248 Sh 3 for Additional Earthing

Refer EARTHING WOOD POLE folder,

Dwg. 1238 for Trench Sections


30 ohm

Max.

DISCONNECTED

L.V. NEUTRAL

N

2

Refer note 4

DRAWN

DATE

PASSED

APPROVED


A ORIGINAL ISSUE

ABN 50 087 646 062


Dwg ShFILE: 5

L. Burton 158624 1586 1

Pole

Conc.

F

Assy 2080-10

F

MATERIAL


Construction Type

EC / HVE

1Earth butt concrete pole

H.V. EARTH

H.V. CONNECTED

F

f

Caution tape

for Trench Sections

POLE folder, drg. 1238

Refer EARTHING WOOD

required, contact local Ergon branch.

If more than 4 additional earthrods

8.0m Min. (Double rod)

4.0m Min. (Single rod or Deep Drilled)

Earthing Construction Code

folder, drg. 1248 Sh 3 for Additional

Refer EARTHING WOOD POLE

2080-10

pole/base.

3 coils beneath

Minimum of


AR


104-1 Earth rod additional

30 ohm

Max.

104-5 AR

124-1 AR

Earth rod additional depth

Earth additional - deep drilled


C. Noel

C. Avenell

23.03.13HARD COPYUNCONTROLLED

A ORIGINAL ISSUE

DRAWN

DATE

PASSED

APPROVED


ABN 50 087 646 062


Dwg ShFILE: 5

f

F

f

F

f

NOTES:

1.

Earth rod additional


AR

AR

Caution tape

4.0m Min. (Single rod)


MATERIAL



ASSY

104-1

104-5

DESCRIPTION QTY

(Additional)

(Additional rod)

Assy selection 104-5 or 104-1 and 5



Additional earthing if required.

EA

EAR

Construction Type

184924 1849 1

4.0m

Assy 2080-10

F

F

Earth butt concrete pole 1

L. Burton

F

2082-3 1

2080-10

Assy 2082-3



drg. 1238 for Trench Sections


Construction Code

drg. 1248 Sh 3 for Additional Earthing


Earthing to run in direction of mains.

assets refer Standards Section.

For separation from other communications




- Earth rod = 2.0m

communications manholes, pillars, pits etc:

Provide the following minimum separation to

1 ohm

Max.

30 ohm

Max.

CONNECTED

L.V. NEUTRAL

DISCONNECTED

L.V. NEUTRAL

N N



- Earth rod = 0.3m

jacketed or in plastic conduit:

to communications cable plastic sheathed /

Provide the following minimum separation

Neutral bond I.P.C. 50/95mm† with 35mm† bonding lead

COMMON EARTH - NEW POLE

OVERHEAD EARTH WIRE7/3/13

C. Avenell

C. Noel

To LV Neutral2.Butt earth to be under precast base if used

3.

are not achieved by butt earth

Assy 2081-2 to be used if earthing values

Assy 2081-2 (Refer note 3)

F

equipment

or

Telstra pit

F

f2.0m min

RESISTANCE TO GROUND

OVERHEAD EARTH WIRE SYSTEM

EC/OH/COM

A ORIGINAL ISSUE

DRAWN

DATE

PASSED

APPROVED


ABN 50 087 646 062


Dwg ShFILE: 5

f

F

f

F

f

NOTES:

1.



AR

AR

Caution tape



MATERIAL



ASSY

104-1

104-5

DESCRIPTION QTY

(Additional)

(Additional rod)





EA

EAR

Construction Type

185024 1850 1

4.0m

F

1

L. Burton

F

2082-3 1

Assy 2082-3





Construction Code









- Earth rod = 2.0m



1 ohm

Max.

30 ohm

Max.

CONNECTED

L.V. NEUTRAL

DISCONNECTED

L.V. NEUTRAL

N N



- Earth rod = 0.3m




Neutral bond I.P.C. 50/95mm† with 35mm† bonding lead

OVERHEAD EARTH WIRE7/3/13

C. Avenell

C. Noel

To LV Neutral

F

equipment

or

Telstra pit

F

f2.0m min

EC/OHX/COM

Assy 2081-2

2081-2 Earth HV (35mm†) to concrete pole



COMMON EARTH - EXISTING POLE

DRAWN

DATE

PASSED

APPROVED


A ORIGINAL ISSUE

ABN 50 087 646 062


Dwg ShFILE: 5

F

f

NOTES:

1.



AR

AR

MATERIAL



ASSY

104-1

104-5

DESCRIPTION QTY

(Additional)

(Additional rod)

EA

EAR

Construction Type

185224 1852 1

1

L. Burton

2130-2 1





Construction Code







30 ohm

Max.

GRADING RING - NEW POLE

7/3/13

C. Avenell

C. Noel

equipment

or

Telstra pit

F

f2.0m Min

2080-10

Grading ring earth to concrete pole

Earth butt concrete pole





F

F1.0m

F1.0mF

Assy 2130-2F F

F

150

Pole

GRADING RING



CONNECTEDF



Assy 2080-10FEarth to be 150mm below ground level

30 ohm max connected

LC

Butt earth to be under precast base if used2.

1

OVERHEAD EARTH WIRE SEPARATE EARTH

- Grading earth cable = 2.0m


- Earth rod = 2.0m





- Earth rod = 0.3m




3.

are not achieved by butt earth.

Assy 2081-2 to be used if earthing valuesAssy 2081-2 (refer note 3)

F

EC/OH/SEP

Grading ring may be round or square

for ease of trenching

F

F1.0m

A ORIGINAL ISSUE

DRAWN

DATE

PASSED

APPROVED


ABN 50 087 646 062


Dwg ShFILE: 5

F

f

NOTES:

1.



AR

AR

MATERIAL



ASSY

104-1

104-5

DESCRIPTION QTY

(Additional)

(Additional rod)

EA

EAR

Construction Type

185224 1852 2

1

L. Burton

2130-2 1





Construction Code







30 ohm

Max.

7/3/13

C. Avenell

C. Noel

equipment

or

Telstra pit

F

f2.0m Min

EC/OHX/SEP

Grading ring earth to concrete pole

F

F1.0m

F1.0mF

Assy 2130-2F

F

F

150



CONNECTEDF



Assy 2081-2F

LC

2

2081-2 Earth HV (35mm†) to concrete pole

F

f1.0m Min

OVERHEAD EARTH WIRE SEPARATE EARTH

GRADING RING - EXISTING POLE

104-5 or 104-1 and 5

Assy selection

local Ergon branch.

earthrods reqd, contact

If more than 4 additional

Additional earthing if reqd.



- Earth rod = 2.0m





- Earth rod = 0.3m




Pole

GRADING RING

Earth to be 150mm below ground level

30 ohm max connected

Grading ring may be round or square

for ease of trenching

F

F1.0m

DRAWN

DATE

PASSED

APPROVED


A ORIGINAL ISSUE

ABN 50 087 646 062


Dwg ShFILE: 5

Documents

OVERHEAD CONSTRUCTION MANUAL EARTHING CONCRETE POLE · OVERHEAD CONSTRUCTION MANUAL EARTHING CONCRETE POLE ... Transformer concrete pole common earth ... 1638 1622 1624/2 1586 TRANSFORMER