UNCONTROLLED COPY 0 I ("'') 0 0 I en en w w A - B 1'-------1- c - I I I 2 I 3 I 4 I 5 I 6 INDEX DESCRIPTION DRAWING DESCRIPTION ASSEMBLY NUMBER DRAWING NOTES .................................................................................................. EESS-10031-02 ASSEMBLY DETAILS OVERVIEW ......................................................................................... EESS-10031-03 • EARTH GRID CONNECTION ............................................... ASSY 40A .......... EESS-10031-40 A EARTHING ASSEMBLY • EARTH GRID I RISER CONNECTION .................................... ASSY 40B .......... EESS-10031-40 • EARTH GRID - PLAN ................................................................ EESS-10031-05 • EARTH ROD CONNECTION ................................................ ASSY 41A .......... EESS-10031-41 - SECTION A ....................................................... EESS-10031-06 • OPERATOR EARTH MAT CONNECTION ................................... ASSY 41B .......... EESS-10031-41 • POWER TRANSFORMER - PLAN ................................................................ EESS-10031-07 • COVERED GNIYE STRANDED COPPER CONDUCTOR TEE ................ ASSY 42A .......... EESS-10031-42 - SECTION A ........................................................... EESS-10031-08 • FIXING EARTH RISER TO CONCRETE ................................... ASSY 43A .......... EESS-10031-43 • CIRCUIT BREAKER .................................................................................. EESS-10031-09 • FIXING EARTH RISER TO CONCRETE - MECHANICAL PROTECTION ... ASSY 43B .......... EESS-10031-43 • CURRENT TRANSFORMER ........................................................................... EESS-10031-10 • FIXING COVERED GNIYE STRANDED COPPER TO STEEL ............. ASSY 44A .......... EESS-10031-44 • VOLT AGE TRANSFORMER ........................................................................... EESS-10031-11 • FLAT I STRANDED COPPER BOLTED CONNECTION ..................... ASSY 44B .......... EESS-10031-44 • ISOLA TOR ........................................................................................... EESS-10031-12 • 2 HOLE LUG EARTH CONNECTION - SINGLE ............................. ASSY 45A .......... EESS-10031-45 • EARTH SWITCH ..................................................................................... EESS-10031-13 • 2 HOLE LUG EARTH CONNECTION - DOUBLE ............................ ASSY 45B .......... EESS-10031-45 • CB, CT ISOLA TOR & EARTHSWITCH - DEAD TANK ............................................................. . • BUS SUPPORT ...................................................................................... EESS-10031-15 • 1 HOLE LUG EARTH CONNECTION - SINGLE ............................. ASSY 45C .......... EESS-10031-45 • 1 HOLE LUG EARTH CONNECTION - DOUBLE ............................. ASSY 45D .......... EESS-10031-45 • CABLE POTHEAD .................................................................................... EESS-10031-16 • FLAT COPPER STRAP - CROSS CONNECTION .......................... ASSY 46A .......... EESS-10031-46 B • SURGE ARRESTER ................................................................................... EESS-10031-17 • FLAT COPPER STRAP - TEE CONNECTION .............................. ASSY 46B .......... EESS-10031-46 • CAPACITOR BANK .................................................................................................... . • FLAT COPPER STRAP -LAP CONNECTION .............................. ASSY 47A .......... EESS-10031-47 • REACTOR .............................................................................................................. . • FLAT COPPER STRAP -BOLTED CONNECTION ......................... ASSY 47B .......... EESS-10031-47 • PAD MOUNT STATION SERVICE TRANSFORMER ................................................................. . • FIXING FLAT COPPER STRAP TO CONCRETE ........................... ASSY 48A .......... EESS-10031-48 • CONCRETE POLE ..................................................................................... EESS-10031-21 • FIXING FLAT COPPER STRAP TO STEEL ............................... ASSY 48B .......... EESS-10031-48 • LIGHTNING MAST .................................................................................. EESS-10031-22 • FIXING FLAT COPPER STRAP WITH LV STANDOFF INSULATOR ..... ASSY 49A .......... EESS-10031-49 • SWITCHYARD LIGI:II ................................................................................ EESS-10031-23 • CONCRETE POLE FERRULE EARTH CONNECTION ......................... ASSY 49B .......... EESS-10031-49 • CABLE PIT & CABLE TRENCH .................................................................... EESS-10031-24 • POWER TRANSFORMER MAIN STRAP .................................... ASSY SOA .......... EESS-10031-50 • FENCE & GATE ..................................................................................... EESS-10031-25 • POWER TRANSFORMER EARTH CONNECTION ........................... ASSY SOB .......... EESS-10031-50 • FENCE EARTH BREAK .............................................................................. EESS-10031-26 • POWER TRANSFORMER LV NEUTRAL BUSH CONNECTION ............. ASSY 51 A .......... EESS-10031-51 • STRAIN EARTHWIRE - OPGW .................................................................... EESS-10031-27 • POWER TRANSFORMER LV NEUTRAL CT CONNECTION ................. ASSY 51B .......... EESS-10031-51 • SUBSTATION BUILDING -CONCRETE REINFORCING GRADING RING ......................................... .. • POWER TRANSFORMER LV CABLE BOX CONNECTION .................. ASSY 52 A .......... EESS-10031-53 c - DOORS, WINDOWS, HAND RAILS .................................................... . - CABLE TRAY, PANELS, SECONDARY EQUIPMENT ................................. . - INDOOR SWITCHGEAR ............................................................... . • CONTROL CUBICLE I MARSHALLING BOX CONNECTION .............. ASSY 52B .......... EESS-10031-53 • COPPER PED SADDLE ...................................................... ASSY 53 .......... EESS-10031-54 • STRUCTURE INCORPERATED PED SADDLE ............................... ASSY 54 .......... EESS-10031-54 • SURGE ARRESTER TEST CONNECTION ................................. ASSY 55 A .......... EESS-10031-55 • TRENCH COVER CONNECTION .............................................. ASSY 55B .......... EESS-10031-55 • FENCE I GATE CONNECTIONS ............................................. ASSY 56 A .......... EESS-10031-56 ; I • FENCE BARD ED WIRE CONNECTION ....................................... ASSY 56B .......... EESS-10031-56 • CONCRETE REINFORCING GRADING RING CONNECTION .......................................................... .. f-i • • METALLIC DOOR, WINDOW FRAME & HANDRAIL CONNECTIONS ............................................. .. i ! t LEGEND NUMERIC VALUE DENOTES::;:::::-- VALUE DENOTES • CABLE TRAY CONNECTIONS ........................................................................................ . • PANEL & SECONDARY SYSTEM ENCLOSURE CONNECTIONS ................................................... . • INDOOR SWITCHGEAR CONNECTIONS .............................................................................. . • CONTROL I PROTECTION CABLE SCREEN EARTH CONNECTION .............................................. .. • POWER CABLE SCREEN I SHEATH EARTH CONNECTIONS ...................................................... . 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Substation Standard Earthing Index ESS10031...UNCONTROLLED COPY I (I I N 1 I 2 I 3 I 4 I 5 I 6 0 EARTHING CONDUCTORS AND CURRENT RATING I BARE STRANDED COPPER CONDUCTOR 6. STRANDED
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DESCRIPTION DRAWING DESCRIPTION ASSEMBLY NUMBER DRAWING
• CB, CT ISOLA TOR & EARTHSWITCH - DEAD TANK ............................................................. . • BUS SUPPORT ...................................................................................... EESS-10031-15
• PAD MOUNT STATION SERVICE TRANSFORMER ................................................................. . • FIXING FLAT COPPER STRAP TO CONCRETE ........................... ASSY 48A .......... EESS-10031-48
• CONCRETE POLE ..................................................................................... EESS-10031-21 • FIXING FLAT COPPER STRAP TO STEEL ............................... ASSY 48B .......... EESS-10031-48
• INDOOR SWITCHGEAR CONNECTIONS .............................................................................. . • CONTROL I PROTECTION CABLE SCREEN EARTH CONNECTION .............................................. ..
• POWER CABLE SCREEN I SHEATH EARTH CONNECTIONS ...................................................... . I I l
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0 EARTHING CONDUCTORS AND CURRENT RATING
I BARE STRANDED COPPER CONDUCTOR 6. STRANDED CONDUCTOR JOINTS
* T""" * GREEN/GREEN YELLOW PVC INSULATED COPPER CONDUCTOR ABOVE GROUND - EXOTHERMIC WELDING IS PREFERRED, HOWEVER COMPRESSION JOINTS USING SUIT ABLE ("'') * ANNEALED COPPER STRAP HYGROUND 'C' TYPE CRIMP OR EQUIVALENT CONNECTOR IS ACCEPTABLE.
0 CURRENT RATING kA/1.5s BELOW GROUND - EXOTHERMIC WELDING OR COMPRESSION JOINT TO IEEE STD 837 2002 SHALL BE USED.
0 INSULA TED BARE 7. PREPARATION OF CONNECTIONS
T""" STRANDED CONDUCTOR FINAL TEMP 160• FINAL TEMP 25o• EARTH TERMINALS SHALL BE STRIPPED OF PAINT AND CLEANED OF CONTAMINATION. JOINT SURFACES I
en A 70mm2 19/2.14 7.43 9.31 SHALL BE GREASED PRIOR TO BOLTING TOGETHER. A
en 120mm2 19/2.75 12.35 15.4 7 8. PROTECTION FROM MECHANICAL DAMAGE
w 150mm2 19/3.00 14.64 18.35 STRUCTURE/EQUIPMENT EARTH TAIL RISERS EXITING THE GROUND ARE TO BE CHASED THROUGH A RECESS
w FORMED IN THE CONCRETE FOUNDATION SPECIFICALLY FOR THIS PURPOSE. WHERE A RECESS IS NOT 185mm2 37/2.50 19.89 24.92 AVAILABLE, THE CONDUCTOR SHALL BE PROTECTED BY A SUIT ABLE METALLIC CONDUIT FROM 100mm BELOW
240mm2 37/2.75 24.04 GROUND LEVEL TO THE TOP OF THE FOUNDATION.
30.12 9. INTERSECTION WITH METAL SERVICES SUCH AS METAL SHEATHED CABLES AND PIPE
- 300mm2 37/3.00 28.52 35.74 METAL SERVICES SHALL BE PROTECTED FROM ELECTROLYTIC CORROSION BY WRAPPING METAL SURFACES r-FLAT COPPER STRAP WITH AN IMPREGNABLE TAPE SUCH AS 'DENSO' FOR A LENGTH OF 1m EITHER SIDE OF THE INTERSECTION.
TO PREVENT POTENTIAL ARCING DURING EARTH FAULTS, THE MINIMUM DISTANCE BETWEEN EARTHING 25mm x 2.5mm N/A 8.56 CONDUCTORS AND METAL SERVICES SHALL BE 150mm.
20mm x 4.0mm N/A 10.95 10. CONDUCTOR CORROSION PREVENTION
31.5mm x 4.0mm N/A 17.25 UNDERGROUND CONDUCTORS SHALL BE BACK FILLED WITH SUIT ABLE MATERIAL HAVING A pH LEVEL BETWEEN 6 AND 10 AND SHALL SURROUND THE CONDUCTOR BY AT LEAST 150mm. FINE SOILS SUCH AS
40mm x 4.0mm N/A 21.91 NEUTRAL CLAY, BENTONITE OR LOAM ARE ACCEPTABLE. GRAVEL, SAND AND PUMICE SHOULD BE AVOIDED. 8 1. FASTENINGS BARE COPPER CONDUCTOR OR STRAP SHALL BE KEPT CLEAR OF THE STRUCTURE BY USE OF UV 8
BOLTED EARTHING CONDUCTOR CONNECTIONS TO STATION EQUIPMENT OR STRUCTURES SHALL BE MADE STABILISED NYLON OR PVC SPACERS BETWEEN IT AND THE STRUCTURE AT THE FASTENING POINT.
WITH STAINLESS STEEL BOLTS, STAINLESS STEEL FLAT 12 PER BOL Tl AND SPRING 11 PER BOL Tl WASHERS BARE COPPER CONDUCTORS IN CONTACT WITH GAL VAN IS ED STRUCTURES SHALL BE TINNED. AND A STAINLESS STEEL NUT. BOLTED CONNECTIONS SHALL NOT BE USED BELOW GROUND LEVEL. 11. FIRE PREVENTION TWO EARTH CONNECTIONS ARE REQUIRED FOR ALL SUPPORT STRUCTURES OF EQUIPMENT THAT IS LIKELY EARTHING CONDUCTORS SHALL BE INSTALLED IN SUCH A WAY THAT TEMPERATURE RISE RESULTING TO BE A SOURCE OF FAULTS. THE CONNECTIONS MUST BE MECHANICALLY SOUND AND BE ABOVE GROUND FROM EARTH FAULT CURRENTS FLOWING THROUGH THE CONDUCTOR WILL NOT CREATE A FIRE HAZARD. LEVEL SUCH THAT IT CAN BE INSPECTED. THE CONNECTIONS SHOULD BE MADE ON OPPOSING SIDES OF A MIMINUM DISTANCE OF 1m SHALL BE MAINTAINED BETWEEN EARTHING CONDUCTORS AND THE EQUIPMENT AND MADE OFF IN OPPOSITE DIRECTIONS. EQUIPMENT EARTHING TERMINALS SHALL HAVE FLAMMABLE MATERIALS. r------ TWO HOLES DRILLED VERTICALLY AND 50mm BETWEEN CENTRES. r-TWO-BOLT CONNECTIONS SHALL BE USED FOR: 12. INSTALLATION f--/
- POWER TRANSFORMERS, METAL-ENCLOSED SWITCHBOARDS, GIS, CB, DISCONNECTORS, EARTHING SWITCHES, - COPPER EARTHING CONDUCTORS ARE TO BE LAID AND ALL UNDERGROUND JOINTS ARE TO BE CT, VT, REACTORS & CAPACITOR BANKS, INSTALLED BY A SUITABLY TRAINED AND QUALIFIED PERSON.
- STRUCTURES OF CIRCUIT BREAKERS, DISCONNECTORS, EARTHING SWITCHES, CT's, VT's, CABLE TERMINATIONS, - ALL JOINTS ARE TO BE INSPECTED BY THE PRINCIPAL'S SUPERINTENDENT PRIOR TO BACKFILLING REACTORS,CAPACITOR BANKS BUS SUPPORT INSULATORS & SURGE ARRESTERS, OF TRENCHES.
- METALLIC TRANSMISSION LINE TOWERS, LIGHTING STANDARDS, LIGHTNING MASTS & MODULAR BUILDINGS. - COPPER EARTHING CONDUCTORS ARE TO BE LAID AT A NOMINAL DEPTH OF 500mm BELOW
EARTHING CONNECTIONS SHOULD NOT BE MADE DIRECTLY TO A PAINTED SURFACE UNLESS IT HAS BEEN GROUND LEVEL OR, WHERE LAID UNDER A DEEPER FOUNDATION, TO BE CLEAR OF THE CONCRETE. SUITABLY TREATED TO ENSURE A CORROSION FREE LOW RESISTANCE CONNECTION.
c -WHERE CONDUCTORS ARE LAID ADJACENT TO FOUNDATIONS,THE NEAREST EDGE OF THE CONDUCTOR c 2. BRAZING ALLOY TRENCH SHALL BE A MINIMUM OF 400mm CLEAR OF THE FOUNDATION.
BRAZED JOINTS ON COPPER STRAPS SHALL BE SILVER SOLDERED JOINTS USING CIG SILVER BRAZING - ALL EARTH TAIL RISERS FROM THE GROUND SHALL BE INSTALLED WITH A MINIMUM PROJECTION OF ALLOY COMWELD SBA 102, 2% Ag, Cu, P ALLOY TO AS1167 OR APPROVED EQUIVALENT. ZINC BEARING 500mm ABOVE THE TOP OF THE FOUNDATION HOLDING DOWN BOLTS UNLESS STATED OTHERWISE. ALLOY SHALL NOT BE USED. - EARTH TAIL RISERS TO CONCRETE POLES SHALL BE LEFT A MIMIMUM OF 1000mm FROM THE CENTRE
3. GREASE OF THE POLE WITH A MINIMUM OF 2000mm OF CONDUCTOR LEFT ABOVE GROUND LEVEL. ;
' BRAZED JOINT AND EQUIPMENT CONNECTION FACES SHALL BE COATED WITH A NON-DRYING, WATER - WHERE TWO 121 EARTH TAIL RISERS FROM THE SAME FOUNDATION CONNECT TO THE ONE GRID MEMBER, I REPELLENT AND CORROSION INHIBITING GREASE. SUIT ABLE GREASES ARE 'ALVINIA ALV300' AND 'SECUROL'. THE TAILS AND CONNECTION POINT TO THE GRID MEMBER SHALL BE INSTALLED A MIMIMUM OF - 1000mm APART. r-j
4. EXOTHERMIC WELDING - ALL BENDS IN STRANDED EARTH TAIL CONDUCTORS SHOULD HAVE A RADIUS NO LESS THAN 30mm. •
IN ORDER TO ACHIEVE A SATISFACTORY JOINT, MOULDS AND CHARGES MUST BE COMPATIBLE, SUITABLE THIS IS ESPECIALLY CRITICAL WHEN INSTALLING SURGE DIVERTER TAILS. i FOR THE CONDUCTOR AND SOURCED FROM A REPUTABLE SUPPLIER. !
- INSTALLED EARTH RODS SHALL CONSIST OF TWO 1211.5m RODS , ONE 111 DRIVE POINT AND ONE 111 t 5. BOLTED JOINTS COUPLER ASSEMBLED TO FORM ONE CONTINUOUS 3.0m ROD. COPPER CLAD RODS ARE NOT TO BE
BOLTED JOINTS ARE ONLY PERMITTED IN SMALL SUBSTATIONS WHERE THE FORESEEABLE EARTH FAULT BENT OVER AND THE TOP OF THE ROD, WHEN INSTALLED, SHALL FINISH LEVEL WITH THE EARTH GRID. I CURRENT WILL BE LOW OR AS TEST DISCONNECTION POINTS IN AN EARTHING SYSTEM WHICH HAS I BRAZED JOINTS. BOLTED JOINTS SHALL NOT BE USED BELOW GROUND. l •
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I ITEM DESCRIPTION STOCK CODE ITEM DESCRIPTION STOCK CODE ITEM DESCRIPTION STOCK CODE en BARE HARD DRAWN COPPER 19/2.14 170mm2) COMPRESSION 70mm2 - 70mm2 EARTH ROD 13mm DIA EARTH ROD COPPER CLAD 1.5m LENGTH en STRANDED
1912.75 1120mm2) CONNECTIONS
70mm2 - 120mm2 COMPONENTS
w CONDUCTOR HARD DRAWN COPPER COUPLING, TO SUIT ABOVE
w HARD DRAWN COPPER 19/3.00 (150mm2) 70mm2 - 150mm2 DRIVING POINT, TO SUIT ABOVE
HARD DRAWN COPPER 37/2.50 1185mm2) 70mm2 - 185mm2 OPERATOR 1500mm x 900mm GALVANISED MILD STEEL - -EARTH MAT DULMISON - CAT No. EARTHMAT, OR EQUIVALENT HARD DRAWN COPPER 3712.75 1240mm2) 70mm2 - 240mm2
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DESCRIPTION EARTH GRID I RISER CONNECTION
FIXING EARTH RISER TO CONCRETE - MECHANICAL PROTECTION
LINE STYLE DESCRIPTION --------- EARTH GRID CONDUCTOR
EARTH RISER CONDUCTOR
-·-·-·-·- FLAT COPPER EARTH STRAP
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ASSY DESCRIPTION 40B EARTH GRID I RISER CONNECTION
42A COVERED GNIYE STRANDED COPPER TEE
43A FIXING EARTH RISER TO CONCRETE
44A FIXING COVERED GNIYE STRANDED COPPER TO STEEL
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NOTES:
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45A 2 HOLE LUG EARTH - SINGLE
CONNECTION 3 1. THE EARTHING IS DIAGRAMATIC ONLY. ACTUAL EQUIPMENT AND STRUCTURE MAY VARY.
45B 2 HOLE LUG EARTH - DOUBLE
CONNECTION 2 2. PED SADDLE ONLY REQUIRED IF CT IS NOT ADJACENT TO CB STRUCTURE.
' ASSY 52B I ASSY 52B II !SEE NOTE 41 !SEE NOTE 41 II
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~F=~,~~~~~~~~==~~~~~~~~ \ASSY 42A ~ 'V\ASSY 42A
f--ASSY 44A
ASSY 52B ~ -,....-...--ASSY 44A
ASSY 45B-:
/ x._ASSY 43A ASSY 43A~ ~
. . . b . • 11 . . .b . . . . . • .I
' ll . . FINISHED SURFACE LEVEL
40B
FRONT VIEW CAPACITOR VOLTAGE TRANSFORMER EARTHING ASSEMBLY
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44A FIXING COVERED GNIYE STRANDED AS REQ COPPER TO STEEL
_,_,_,_,_ EARTH BRAID
NOTES: 45A 2 HOLE LUG EARTH CONNECTION 1
- SINGLE
45B 2 HOLE LUG EARTH CONNECTION 6 - DOUBLE
1. THE EARTHING IS DIAGRAMA TIC ONLY. ACTUAL EQUIPMENT AND STRUCTURE MAY VARY.
45D 1 HOLE LUG EARTH CONNECTION 1 - DOUBLE
52B CUBICLE I MARSHALLING BOX 1 CONNECTION
53 COPPER PED SADDLE
t• EARTH SWITCH t•
BLADES
ISOLA TOR EARTHING~ REFER 9117976-12 •
2
i AUX. CONTACTS EARTH ATTACHMENT POINT MECH BOX EARTH ATTACHMENT POINT (AS REQUIRED) DRIVE ROD
• 1-o EARTH ATTACHMENT _.T .. r-e-·
SADDLE'-......!" ·v PED
POINT ASSY
PED SADDLE
... ....
.
I ,. ASSY 53---I
STRUCTURE EARTH ATTACHMENT POINT
GROUND LEVEL
STRUCTURE, EARTH TAIL ""
EARTH GRID
I
___ .__ ....
TRUCTURE EARTH ATTACHMENT POINT
~OPERATOR EARTH MAT
I ........-STRUCTURE ~ EARTH TAIL
------·-------------SCHEMA TIC
(STRUCTURE EARTHING INCLUDED FOR INDEPENDENT EARTH SWITCH!
/
ASSY 40B
o . . '*
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SIDE VIEW (ISOLATOR OMITTED)
.
..-ASSY 44A
ASS~\ 40B \
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ASSY 52B
ASSY 43A
FRONT VIEW EARTH SWITCH EARTHING ASSEMBLY
6
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\ASSY 42A
~ASSY 44A
r--ASSY 53
r--ASSY 45B
b.,
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ASSY DESCRIPTION 40B EARTH GRID I RISER CONNECTION
43A
45A
FIXING EARTH RISER TO CONCRETE
2 HOLE LUG EARTH CONNECTION - SINGLE
2
QTY 2
2
2
STRUCTURE EARTH ATTACHMENT POINT
STRUCTURE EARTH ATTACHMENT POINT
GROUND LEVEL
STRUCTURE-....._ EARTH TAIL ""
EARTH GRID
I _.....-STRUCTURE f' EARTH TAIL
SCHEMA TIC
I (I I 3
LEGEND
LINE STYLE DESCRIPTION --------- EARTH GRID CONDUCTOR
EARTH RISER CONDUCTOR
NOTES:
I
1. THE EARTHING IS DIAGRAMATIC ONLY. ACTUAL EQUIPMENT AND STRUCTURE MAY VARY.
2. FOR INDIVIDUAL SUPPORT ONLY ONE EARTH CONNECTION IS REQUIRED.
I I
ASSY 45A~ :r---ASSY 45A
I
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SIDE VIEW
4 I 5 I 6
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SS Y 4 3A
ASSY 4SA-il-~t'l· r.v. SEE NOTE 2.
0 ~·--=f~IIASSY 45A
ASSY 43A/
I _/ASSY 40B
---------------------------------~--------SECTION
(A\IL_ __ ~~~------------~~----~1
I 1--ASSY 45A
I I .\ ASSY 43AX 1\
FRONT VIEW BUS SUPPORT EARTHING ASSEMBLY
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ERGONENERG~~~~~AciiONSTANDARD EESS-10031-15 R; i BUS SUPPORT i
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REVISION CONTROL
~ ~ ~ !i olJ ~~ ~ CORPORATION LTD ABNSOD87846062 ~ I 8:~ J -t!)q ~ <~.:~ce::E: l
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LIGHTNING MAST EARTHING ASSEMBLY I l •
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MATERIAL
ASSY DESCRIPTION 40A EARTH GRID CONNECTION
40B EARTH GRID I RISER CONNECTION
43A FIXING EARTH RISER TO CONCRETE
SSB TRENCH COVER CONNECTION
LEGEND
LINE STYLE DESCRIPTION EARTH GRID CONDUCTOR
EARTH RISER CONDUCTOR
COVER EARTH CONDUCTOR
I I
I 2
QTY AS REQ
AS REQ
AS REQ
AS REQ
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CABLE PI & CABLE TRENCH Bus. Rsq. Approved Dais
EARTHING ASSEMBLY I 2 I 3 I 4 I 5
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MATERIAL
ASSY DESCRIPTION 40B EARTH GRID I RISER CONNECTION
41A EARTH ROD CONNECTION
44A FIXING COVERED GIY STRANDED COPPER TO STEEL
45A 2 HOLE LUG EARTH CONNECTION - SINGLE
45B 2 HOLE LUG EARTH CONNECTION - DOUBLE
56 A FENCE I GATE CONNECTION
56B FENCE BARBED WIRE CONNECTION
LEGEND
LINE STYLE DESCRIPTION EARTH GRID CONDUCTOR
EARTH RISER CONDUCTOR
EARTH RISER BRAID
I 2 I
QTY ,8 ~ ~
2
AS REQ I FENCE I AS REa
AS REQ
~SA\
6
3
AS REQ
NOTES: OUTSIDE INSIDE
SUBSTATION YARD SUBSTATION YARD
1. GRADIENT RING AROUND SUBSTATION TO EXTEND 1000mm BEYOND SUBSTATION FENCE. REFER EESS-10031-05.
2. GATE GRADIENT RING TO EXTEND 1000mm BEYOND MAXIMUM REACH OF GATE IF OPENING OUTWARDS.
3. FENCE BARBED WIRE CONNECTIONS REQUIRED WHERE POSTS ARE NON-METALLIC. CONNECTIONS TO BE PROVIDED AT GATES,AT EACH CORNER,AT APPROX.50M INTERVALS AND AT 1M EITHER SIDE WHERE OVERHEAD HV CONDUCTORS CROSS THE FENCE.
4.INDEPENDENT GATE POSTS TO BE BONDED BELOW GROUND.
5. INDEPENDENT FENCE POSTS TO BE EARTHED WITH EARTH RODS AT EACH CORNER,AT APPROXIMATELY SOM INTERVALS AND WHERE OVERHEAD HV CONDUCTORS CROSS THE FENCE.
1000 ASSY 45A
FINISHED SURFACE LEVEL
•
3
ASSY 45B\ ASSY 56A
I
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ASSY 40B
SECTION A
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ASSY 56A I
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FRONT VIEW FENCE & GATE NOT CONNECTED TO EARTH GRID IlNDE PENDENT!
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EESS-10031-25 OA Scalo NTS =. 26
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N ~ 100mm TREA TEO PINE PALINGS ~ I
T""" BETWEEN PALINGS ("'') TO EXCEED 10mm
n KOPPER 0 ~ - SOmm DIA NEW STEEL
LOG POST ~
J-~
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ANTI-CLIMBING. ~.AI~ I ~ BARBED WIRE TO u
T""" :5 MA HH EXISTING FENCES ~
~ ~ FIX TO NEW POST I REFER DETAIL A POST & BACKSTAY RAIL SAWN A h. /PALING A >- MAX
j A en ~
~ 1\ 45° ON TOP
"' ~ INSULATORS 100mm DIA TREATED 1;1 ~ LFUPPLIED BY en wa CONNECT EXISTING
~ KOPPER LOG POST
Uw CUSTOMER'S FENCE = ERGDN GY2
w i5"' ERGON NEW POST ~ ERGON ~.,
SUBSTATION SUBSTATION oi!i CONNECT EXISTING w z~ FENCE L-= FENCE CUSTOMER'S FENCE -, ~- TD NEW POST ex O.w ~, 3 X 100 X 38 I
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NOTES: TYPE A 1. FIX PINE RAILS TO KOPPERS LOG POSTS WITH 10mm TYPE (
SIMILAR FENCE PANEL HEIGHT DIA GAL VANISED CUP HEAD BOLTS & WASHER. RURAL - FOR USE AT RURAL PROPERTIES
2. FIX PALINGS TO RAILS WITH 45 x 4 SCREWS AS ~ 100mm TREA TEO PINE PALINGS ~ RECOMMENDED BY MANUFACTURER.
GAP BETWEEN PALINGS r----- ~ NOT TO EXCEED 10mm r-
~
~ ~ ~ f--/
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REFER DETAIL A ERG ON ~., SUBSTATION
~ SUBSTATION CUSTOMER
oi!i FENCE - FENCE FENCE z~
:i~ c ex CONNECT EXISTING ~" "'"'"' ""'"'"< c
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ilJI I f.,:: - ... :l'~· ANCHOR BLOCK r-j ·u lJ U'· U:'·'· u-;, • ''Ll I ~ ~ f ~ ~ i ~ T T !
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DISSIMILAR FENCE PANEL HEIGHT CHAIN MESH FENCE PANEL I l •
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EARTH BONDING LEAD -THE POLE,OR TO THE DEADEND AT THE OPPOSITE SIDE OF POLE, TO CONTINUE ALONG THE LINE. CONNECTED TO POLE FERRULE
c OPGW BENDING RADIUS TO BE NOT LESS THAN 500 USING M12 STAINLESS STEEL c SET SCREW & SPRING WASHER. PACK OUT WITH STAINLESS STEEL FLAT WASHER TO ENSURE SOUND ELECTRICAL CONTACT AREA WITH POLE FERRULE. ;
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EARTH STRANDED HD COPPER CONDUCTOR
ASSEMBLY 40A EARTH GRID CONNECTION
CONNECTION EXOTHERMIC OR APPROVED COMPRESSION CONNECTION
3
EARTH GRID STRANDED HO BARE COPPER CONDUCTOR
4 5
MATERIAL REFER TO MATERIALS LIST 1911976-03! AND MATERIALS LIST 1911976-04) FOR MATERIAL TYPE, QUANTITIES AND STOCK CODES.
EARTH GRID STRANOEO HO BARE COPPER CONDUCTOR
EARTH R"'"''_.-STRANDED GREEN/YELLOW
PVC COVERED COPPER CONDUCTOR
CONNECTION EXOTHERMIC OR APPROVED COMPRESSION CONNECTION
ASSEMBLy 40B EARTH GRID I RISER CONNECTION
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MATERIAL REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR MATERIAL TYPE, QUANTITIES AND STOCK CODES.
ASSEMBLY 41A
EARTH GRID STRANDED HD BARE COPPER CONDUCTOR
EARTH ROD CONNECTION
p
t---_____ CON NE (T]O N EXOTHERMIC OR APPROVED COMPRESSION CONNECTION
-._____EARTH ROD
t---_____EARTH ROD COUPLING
-._____EARTH ROD
I--DRIVING POINT
(I 3
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OPERATOR EARTH MAT
1\
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70mm2 EARTH RISER"\.~ STRANDED GREEN/YELLOW '-. I
PVC COVERED COPPER CONDUCTOR f _, I ~
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ASSEMBLY 41B OPERATOR EARTH MAT CONNECTION
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T""" ('I) REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR
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NOTE ALL HOLES MADE INTO STEEL WORK ARE REQUIRED TO BE PAINTED BY AN ETCHING PAINT IN ORDER TO PROTECT THE STEEL; FROM CORROSION.
STAINLESS STEEL SADDLE
POP RIVET-........._ /I THRUSS HEAD MONEL ~
EARTH RISER ASSY 408
STAINLESS STEEL SADDLE
POP RIVET-........._ /I THRUSS HEAD MONEL ~
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NOTE BOLT LENGTH TO SUIT.
.. ,, I II I \1 I "" I I
OPTIONAL ARRANGEMENT
FLAT COPPER STRAP
BRAZED CONNECTION
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MATERIAL REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR MATERIAL TYPE, QUANTITIES AND STOCK CODES.
NOTES 1. DIMENSIONS ARE A RECOMMENDED MINIMUM.
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MATERIAL REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR MATERIAL TYPE, QUANTITIES AND STOCK CODES.
NOTE IF BOX NOT REQUIRED,PVC COVERED STRANDED COPPER CONDUCTOR MAY BE REPLACED BY FLAT COPPER STRAP.
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AT COPPER STRAP LV
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MATERIAL REFER TO MATERIALS LIST !911976-031 AND MATERIALS LIST !911976-041 FOR MATERIAL TYPE, QUANTITIES AND STOCK CODES. FULL DESIGN FAULT CURRENT SHOULD BE USED WHEN DETERMINING FLAT COPPER STRAP SIZE. REFER CURRENT RATING TABLE !911976-021.
NOTES 1. FLAT COPPER STRAP SURFACES THAT ARE IN CONTACT WITH GALANISED SURFACES MUST BE TINNED.
2. ALL HOLES MADE INTO STEEL WORK ARE REQUIRED TO BE PAINTED BY AN ETCHING PAINT IN ORDER TO PROTECT THE STEEL FROM CORROSION.
ASSEMBLY 53
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