Project Reflection Report

Description

You are required to provide a discussion on your own performance and behaviours
you exercised throughout your project. Your aim will be to take a critical look at the outcomes from
your project and to analyse them and make recommendations for potential future improvements – project report attached.

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5
6
7
8
OFF SITE
ON SITE
3c 6mm² Cu/PVC/SWA/PVC
BY POC
ENC
CLIENT
Insulated Gland (no earth
connection permitted)
3c 6mm² Cu/PVC/SWA/PVC
BY POC
14.3
15.3
N/A
%
PLOT 5602
1.7
0.13
4.12
LV TAILS BY OTHERS
AWA’s to be earthed at
customer’s LV switchboard
LV PANEL BY OTHERS
TEMPORARY BUILDER’S
SUPPLY – 384.6kVA 3ɸ
1No. MPAN TO BE PROVIDED
BY POWER ON
3c 185 LVWF 5m 112.08kVA
PME
POINT
FLAT 5606-00-06
4.11kVA 1Ø
FLAT 5605-00-01
4.11kVA 1Ø
FLAT 5605-00-02
3.42kVA 1Ø
FLAT 5605-00-03
3.42kVA 1Ø
FLAT 5605-00-04
2.74kVA 1Ø
PLOT 5605
12.6
0.02
0.71
FLAT 5605-00-05
2.74kVA 1Ø
M
SEP
1c 35 Plain Concentric
7m 2.74kVA
1c 35 Plain Concentric
7m 2.74kVA
1c 35 Plain Concentric
7m 3.42kVA
1c 35 Plain Concentric
7m 3.42kVA
1c 35 Plain Concentric
8m 4.11kVA
70mm2 Cu
6491X G/Y PVC
1c 35 Plain Concentric
8m 4.11kVA
100A FUSED
1c 35 Plain Concentric
7m 3.42kVA
MSDB
21 WAYS
2J
PME
POINT
1c 35 Plain Concentric
7m 3.42kVA
5606
MSDB #1
PLOT 5605 RISER ROOM
M
SEP
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
SEP
100A
(100A FUSED)
M
100A
(100A FUSED)
SEP
100A
(100A FUSED)
M
100A
(100A FUSED)
3No. 1 Bed Flats – 8.22kVA
18No. 2 Bed Flats – 61.56kVA
16No. 3 Bed Flats – 65.76kVA
Plot 5606 Landlord – 40.32kVA
6No. 1 Bed Flats – 16.44kVA
21No. 2 Bed Flats – 71.82kVA
18No. 3 Bed Flats – 73.98kVA
Plot 5601 Landlord – 61.57kVA
PME
POINT
MSDB
24 WAYS
2J
100A FUSED
70mm2 Cu
6491X G/Y PVC
3c 300 LVWF 65m
223.81kVA
3c 300 LVWF 250m 275kVA
3c 300 LVWF 40m 275kVA
G
%
16No. 1 Bed Flats – 43.84kVA
10No. 2 Bed Flats – 34.20kVA
18No. 3 Bed Flats – 73.98kVA
Plot 5605 Landlord – 35.1kVA
5605
MSDB #1
PME
POINT
SEE SHEET 2 FOR
DOWNSTREAM LV
INTERNALS
MSDB
21 WAYS
2J
100A FUSED
70mm2 Cu
6491X G/Y PVC
1
J
K
3c 185 LVWF
9m 203.92kVA
3c 300 LVWF
1m 203.92kVA
3c 300 LVWF 53m 209.4kVA
0
FLAT 5603-00-02
6.84kVA 1Ø
Drawing Title
3c 95 LVWF 1m
5604
MSDB #1
TH
DR
Date
Drwn Chkd
3c 95 LVWF 38m 10.96kVA
3c 95 LVWF 7m 17.8kVA
3c 95 LVWF 10m 31.48kVA
3c 95 LVWF 10m 45.16kVA
3c 95 LVWF 10m 58.84kVA
3c 95 LVWF 10m 72.52kVA
3c 95 LVWF 10m 86.2kVA
PME
POINT
MSDB
21 WAYS
2J
100A FUSED
70mm2 Cu
6491X G/Y PVC
3c 95 LVWF 58m 99.88kVA
3c 300 LVWF 1m 99.88kVA
ON SITE
OFF SITE
ELECTRICAL DESIGN
I
All Utilities. One Provider
DOVECOTE COURT
POTTERS MARSTON HALL
LEICESTERSHIRE, LE9 3JR
TELEPHONE: 03453 223322
[email protected]
3c 300 LVWF 25m 213.94kVA
ON SITE
OFF SITE
ON SITE
OFF SITE
Electricity
Client
ACB BONDING ARRANGEMENT
SCALE: NTS
TRANSFORMER
RTU CONNECTION DETAILS
SITE LOCATION PLAN
SCALE: NTS
CUSTOMER
OWNED PANEL
NEUTRAL/ EARTH
LINK CONNECTED
Single RMU, FPI(s)
Description of Substation Requirements
1 x RMU with either 1, 2, or 3 automated switches/CB.
1, 2 or 3 FPIs.
Transformer LV way monitoring.
Power Network Equipment to be Installed
1 x RMU with either 1, 2, or 3 automated switches/CB.
Cable Troll FPI(s) (if more than 2 FPIs required).
RTU
RMU
ARMOUR ISOLATED FROM
EARTH BAR
EARTH CONNECTED TO
EARTH BAR
ARMOUR CONNECTED
TO EARTH BAR
Comms
Device
*Not Shown
in diagram*
1 x RTU Wall/Floor Mounting Bracket:
66920P or 66921X
RTU
1 x RTU: Lucy Gemini 3 -14463F, or
Remsdaq CallistoNX – 14461L
FPI
Project Name
NOTE: INSULATING SCREENS – AWA WIRES TO BE CUT FLUSH WITH THE OUTER CABLE INSULATION AND FULLY TAPED TO FORM AN INSULATED END
5
6
7
8
9
10
11
12
13
1 x GPRS/3G/4G Router: 66954Q
Construction Engineer/Project Manager Mobile
Mobile
TOUFIQUL HAQ
GARETH WILLIAMS
Orig. Size
VARIES
Network Operator Ref.
14
J
K
IF IN DOUBT – ASK
Design Engineer
Existing Cabletroll FPI(s): 14731H
Gas
EASTWICK & SWEETWATER PHASE 2
3 x Umbilical Cable 6m: 66923N
1 x GPRS /3G/4G Aerial: 66955Y
Heat
WATERDEN ROAD
EAST WICK, HACKNEY WICK
LONDON
E20 3AS
Scale
NEUTRAL/EARTH LINK
DIS-CONNECTED
(T-T SYSTEM)
Fibre
Site Address
FPI
Comms
Device
Wastewater
PLACES FOR PEOPLE DEVELOPMENTS
Items to be Ordered
L1
L2
L3
N
FPI
4
Water
1c Cu CABLES + EARTH
L1
L2
L3
N
H
SEE SHEET 2 FOR
DOWNSTREAM LV
INTERNALS
70mm2 Cu
6491X G/Y PVC
HV/ LV EARTH
3
31/05/23
28No. 2 Bed Flats – 95.76kVA
Plot 5604 Landlord – 18.3kVA
CUSTOMER TO
INSTALL OWN
EARTHING SYSTEM
2
DR
Amendment
%
E
1
SR
3c 95 LVWF 20m 114.06kVA
ENC
ENC shall be adopting all work from the outgoing HV terminals of the UK Power
Networks (LPN) RMU up to the supply exit point for each supply.
L
04/08/23
PLOT 5604
114.06kVA 3Ø
160A
160A
PLOT 5605 RISER ROOM
SEP
100A
(100A FUSED)
M
100A
(100A FUSED)
SEP
PLOT 5604
9.3
0.02
0.77
FLAT 5603-00-01
6.84kVA 1Ø
M
100A
(100A FUSED)
100A
(100A FUSED)
M
SEP
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
FLAT 5603-00-03
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
FLAT 5603-00-04
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
SEP
100A
(100A FUSED)
M
1c 35 Plain Concentric
7m 6.84kVA
1c 35 Plain Concentric
7m 6.84kVA
FLAT 5603-00-05
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
Adoption Information
Substation to have 24hr unrestricted pedestrian & vehicular access for UK Power
Networks (LPN) & ENC authorised staff via dual locking access arrangements.
UK Power Networks (LPN)
UK Power Networks (LPN) shall be adopting the new loop connected RMU and HV
cable from the HV point of connection up to the outgoing HV terminals of the
RMU.
FLAT 5603-00-06
6.84kVA 1Ø
100A
(100A FUSED)
M
SEP
100A
(100A FUSED)
SEP
FLAT 5603-00-07
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
M
100A
(100A FUSED)
100A
(100A FUSED)
M
SEP
FLAT 5603-00-08
6.84kVA 1Ø
100A
(100A FUSED)
FLAT 5603-00-09
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
FLAT 5603-00-10
6.84kVA 1Ø
100A
(100A FUSED)
FLAT 5603-00-11
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
100A
(100A FUSED)
SEP
FLAT 5603-00-12
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
100A
(100A FUSED)
M
1c 35 Plain Concentric
7m 5.48kVA
FOR THE TBS ACB, THE NEUTRAL AND EARTH SHALL BE LINKED
WITHIN THE LV CABINET, AFTER WHICH, THEY MUST BE
MAINTAINED SEPARATE BY THE CUSTOMER IN ACCORDANCE WITH
THE LATEST EDITION OF THE BS7671 & BUILDING REGULATIONS
PART P.
FLAT 5603-00-13
6.84kVA 1Ø
1c 35 Plain Concentric
7m 6.84kVA
M
SEP
3c 185 LVWF 13m 197.12kVA
OFF SITE
ON SITE
I
FLAT 5607-00-01
5.48kVA 1Ø
100A
(100A FUSED)
TEMPORARY BUILDER’S SUPPLY WILL BE PROVIDED WITH TT
SUPPLIES AND THE CUSTOMER IS RESPONSIBLE FOR INSTALLING
THEIR OWN EARTHING SYSTEM IN ACCORDANCE WITH BS7671 AND
BUILDING REGULATIONS PART P.
3c 185 LVWF 15m 188.86kVA
5606-00-01 PLOT REMOVED & 56002-00-05
PLOT ADDED
ORIGINAL ISSUE: APPROVED FOR
CONSTRUCTION
Rev
100A
(100A FUSED)
FLAT 5607-00-02
5.48kVA 1Ø
3c 185 LVWF 13m 182.02kVA
%
1c 35 Plain Concentric
7m 5.48kVA
H
3c 185 LVWF 27m 175.86kVA
FURTHEST HOUSE
1.8
0.13
2.14
LV POINT OF CONNECTION
EAST WICK AND SWEETWATER (PHASE 1)
ENC REF: N0020195-1
POWER ON REF: P-0094770-0001
1No. STRAIGHT JOINTS TO BE CARRIED OUT BY POWER ON ONTO EXISTING 3c
300 LVWF LV CABLE. POWER ON TO UNDERTAKE FINAL CLOSING JOINTING.
THIS CONNECTION IS TO ALLOW FOR 275kVA LV BACKFEED BETWEEN PHASE 1
& PHASE 2 DEVELOPMENTS.
PLOT 5605
187.12kVA 3Ø
3c 185 LVWF 37m 187.12kVA
PME SHALL BE OFFERED ON THIS SITE (EXCEPT TBS) AT THE INTAKE
POSITIONS AS DETAILED ON THIS DRAWING. THEREAFTER ALL
SUPPLIES SHALL BE CONSIDERED TN-S DERIVED FROM A PME
SYSTEM.
600
F
SEE SHEET 2 FOR
DOWNSTREAM LV
INTERNALS
5601
MSDB #1
160A
200A
PLOT 5601 RISER ROOM
FLAT 5606-00-05
3.42kVA 1Ø
160A
160A
FLAT 5606-00-04
3.42kVA 1Ø
1c 35 Plain Concentric
7m 3.42kVA
PME AVAILABILITY
FLAT 5606-00-03
3.42kVA 1Ø
M
SEP
%
PLOT 5601
223.81kVA 3Ø
EXISTING 3c 300 LVWF ENC LV NETWORK
(PHASE 1 – P-0094770/N0020195-1)
%
PLOT 5606
175.86kVA 3Ø
350
100A FUSED
70mm2 Cu
6491X G/Y PVC
%
1c 35 Plain Concentric
7m 2.74kVA
Supply Exit Points are labeled “SEP”on this drawing.
FLAT 5606-00-02
2.74kVA 1Ø
160A
160A
SEE SHEET 2 FOR
DOWNSTREAM LV
INTERNALS
PLOT 5606 RISER ROOM
PLOT 5606
4.1
0.06
2.67
The supply exit points for [13No.] 4 bed townhouses (Flats 5603-00-01/13)
supplies shall be the outgoing terminals of 100A MK4 cutouts with 100A fuse
within each unit on the ground floor.
E
MSDB
24 WAYS
2J
OFF SITE
ON SITE
G
3c 300 LVWF 250m 223.81kVA
SEE SHEET 2 FOR
DOWNSTREAM LV
INTERNALS
5602
MSDB #1
3c 95 LVWF 195m 112.08kVA
The supply exit points for externally fed ground floor flats (Flats 5605-00-01/05
& 5606-00-01/06) supplies shall be the outgoing terminals of 100A MK4 cutouts
with 100A fuse within each unit on the ground floor.
FURTHEST HOUSE
3.0
0.08
2.21
Recommended positions of
mains and cables in carriageway
PLOT 5602
112.08kVA 3Ø
PLOT 5601
2.4
0.10
4.69
The supply exit points for [2No.] 3 bed townhouses (Flats 5607-00-01/02)
supplies shall be the outgoing terminals of 100A MK4 cutouts with 100A fuse
within each unit on the ground floor.
Recommended positions of
mains and cables in footway
%
D
19No. 1 Bed Flats – 52.06kVA
12No. 2 Bed Flats – 41.04kVA
Plot 5602 Landlord -18.98kVA
The supply exit points for each Plot (5601, 5602, 5604, 5605, 5606) Landlord
supplies shall be the outgoing terminals of 100A MK4 cutouts with Redlinks
within their respective riser rooms on ground floor.
F
Carriageway
750
CU
ACB EXIT
Insulated Gland
No Earth Connection
Permitted.
SEP
7
430
Elec LV
6
690
Elec HV
5
960
600
4
1255
750
3
1720
1550
600
2
NJUG SEPARATION DIAGRAM
Lamp Standard
Cable TV
12c 2.5Cu/PVC/SWA
Max. 10m cable length
Insulated Gland (no earth
connection permitted)
TX BLADES
1
C
LEGAL BOUNDARIES
Gas
METERING CTs:
500kVA/800A ACB – CT RATIO 800/5
CU
Auxilliary socket &
light See drawing
P-0101875-DWG-020
EARTH ROD
Water 900
Transformer mounted 800A
ACB to ENC specification
MIC/MEC – 946.35kVA/0kVA
PRESSURE END (HV/LV SERVICE/LV MAINS)
Telecomm
M
UKPN
ENC
2c 2.5mm2 SWA
JOINT (HV/LV SERVICE/LV MAINS)
900
4
CB
Earthed Gland
Emergency: 1221.35kVA
12.5A
Water
TX BLADES
1-3
VRN2A
Eastwick & Sweetwater
Phase 2 Substation
1250kVA
11/0.433kV
Dyn11 KNAN
7.5A 10A
B
600
Auxilliary socket &
light See drawing
POC-SS-0005 &
POC-PC-0001
2c 2.5mm2 SWA
CLIENT OWNED LV SWITCHROOM FOR
TEMPORARY BUILDER’S SUPPLIES
The supply exit points for each Plot (5601, 5602, 5604, 5605, 5606) Residential
units shall be the outgoing terminals of 100A MK4 cut outs with 80A fuse. Group
metered location shall be within the riser room of each respective floor level.
384.6kVA/0kVA
MIC/MEC
02
ACTUATOR
RTU
5A
250
Eastwick & Sweetwater
Phase 2 TBS
500kVA
11/0.433kV
Dyn11 ONAN
01
ACTUATOR
A
TERMINATION
OFF SITE
ON SITE
Supply Exit Points & Metering
UKPN
ENC
LV SERVICE CABLE (& LAID SERVICE)
Gas
CB
Earthed Gland
CUSTOMER’S LV TAILS REQUIREMENTS:
1) ACB WILL NOT ACCEPT MULTI-CORE CABLES
2) MAX 630mm2 1c Cu/AWA, 2No. CABLES PER PHASE AND 1No. NEUTRAL (12 SIZED)
3) 1No. SEPARATE G/Y PVC EARTH CONDUCTOR (CPC)
4) NO FACILITY FOR EARTHED GLAND AT SUBSTATION (WOODEN COMPRESSION BLOCK ONLY)
5) C8B4 LUGS REQUIRED IN ACB PILLAR (SINGLE HOLE LUGS NOT PERMITTED)
6) LOAD TO BE BALANCED ACROSS ALL THREE PHASES SO FAR AS REASONABLY PRACTICABLE
7) LARGE AMOUNTS OF HARMONIC DISTORTION NOT PERMITTED FOR CONNECTION, I.E. THAT WOULD REQUIRE LARGER THAN HALF SIZED NEUTRAL.
8) LV CABLES TO COMPLY WITH BS7671 INCLUDING THE FOLLOWING:
a) EARTH LOOP IMPEDANCE AT (UNEARTHED) SUBSTATION END OF CABLES SUFFICIENTLY LOW TO ACHIEVE MAX 5 SECOND DISCONNECTION OF ACB
WITH SETTINGS AS SHOWN ABOVE
b) WHERE SUBSTATION ACB IS USED TO PROVIDE BOTH OVERLOAD AND SHORT CIRCUIT PROTECTION THE LV CABLES MUST BE SIZED TO CARRY
OVERLOADS UP TO THE ACB SETTINGS – NOT JUST TRANSFORMER FULL LOAD CURRENT (FLC) OR AUTHORISED SUPPLY CAPACITY (ASC)
c) WHERE THE CUSTOMER’S MAIN INCOMING CIRCUIT BREAKER OR FUSES PROVIDE OVERLOAD PROTECTION THEN SMALLER CABLES MAY BE USED
(REFER BS 7671 CLAUSE 433). IN THIS CASE THE CUSTOMERS DESIGNER MUST STILL CHECK THAT THE CABLES ARE ADEQUATELY RATED FOR THE SHORT
CIRCUIT PROTECTION AFFORDED BY THE SUBSTATION ACB SETTINGS GIVEN ABOVE
Electric Vehicle Charging Points have not been declared on this site.
VRN2A
RTU
)
EASTWICK AND SWEETWATER PHASE 2
Way Fuse Feeder Name
1
400A PLOT 5605
2
400A FLATS 5605-01/5, FLATS 5606-01/6, PLOT 5606
3
400A BACKFEED TO PHASE 1 SUBSTATION
4
400A PLOT 5601
5
400A PLOT 5602
6
400A FLATS 5603-01/13, FLATS 5607-01/2, PLOT 5604
7
N/A N/A
GRID REF: TQ 37484 84813
32A FUSED
Meter not to be
within DNO
substation
ACTUATOR
32A FUSED
Off
4
0.1 with i2t on
830A
3,235A
Above settings assume
standard “long term
rating” plug used.
tsd (s)
Overload trip current
Earth fault 5 sec trip current
Notes
Volt drop, Prospective Short Circuit Current (Ph-N), and ELI have been calculated
for all key points on the system with the results included on the schematic
diagram.
EARTHING REQUIREMENT AT CUSTOMER’S
INTAKE POINT:
WHERE THE CUSTOMER IS INSTALLING A SEPARATE EARTH
MAT, A MEANS FOR DISCONNECTING IT MUST BE PROVIDED
TO FACILITATE MEASURING THE RESISTANCE. THIS MUST BE
PROVIDED IN AN ACCESSIBLE POSITION (IN ACCORDANCE
WITH THE CURRENT EDITION OF THE BS7671 WIRING
REGULATIONS AND THE BUILDING REGULATIONS PART P ELECTRICAL SAFETY).
1
4
Ir (xIn)
Isd (xIr)
Ii (xIn)
tr (s)
02
50/5
100/5
160A
160A
Masterpact NT08H2
with Micrologic 5.0E
control unit
ACB Type
01
ACTUATOR
NON-METALLIC, WEATHERPROOF &
LOCKABLE ENCLOSURE BY POWER ON
The MIC/MEC for the Plot 5601 Landlord Supply is assessed at 61.57kVA/0kVA.
The MIC/MEC for the Plot 5602 Landlord Supply is assessed at 18.98kVA/0kVA.
The MIC/MEC for the Plot 5604 Landlord Supply is assessed at 18.30kVA/0kVA.
The MIC/MEC for the Plot 5605 Landlord Supply is assessed at 35.10kVA/0kVA.
The MIC/MEC for the Plot 5606 Landlord Supply is assessed at 40.32kVA/0kVA.
UKPN RTU
REQUIRES 230V
SUPPLY. THIS SHALL
BE SUPPLIED FROM
THE AUXILLIARY LV
SUPPLY FROM THE LV
PILLAR
GRID REF: TQ 37378 84962
CT Ratio
600
STANDARD ACB PROTECTION SETTINGS TO GRADE WITH
STANDARD ENC TLF SETTINGS
Transformer Rating
500kVA
(
Cable TV
UKPN RTU
REQUIRES 230V
SUPPLY. THIS SHALL
BE SUPPLIED FROM
THE AUXILLIARY LV
SUPPLY FROM THE LV
PILLAR
LV MAINS CABLE (& LAID LV)
Elec HV
12.5A
)
EARTH BONDING
450
7.5A 10A
EASTWICK AND SWEETWATER PHASE 2 (TBS)
Way Fuse Feeder Name
1-3 800A TEMPORARY BUILDER’S SUPPLY
2
N/A N/A
Electric Vehicle Charging Points
E
5A
TFL Protection (UKPN)
Transformer Size 11kV (kVA)
315 500 800 1000 1250
5A 10A 15A
Elec LV
50/5
100/5
(
CONTROL / SIGNAL CABLE
PLOT 5602 RISER ROOM
47No. 1Bed Flats
is assessed at 2.74kVA each.
94No. 2Bed Flats
is assessed at 3.42kVA each.
54No. 3Bed Flats
is assessed at 4.11kVA each.
2No. 3Bed Townhouses is assessed at 5.48kVA each.
13No. 4Bed Townhouses is assessed at 6.84kVA each.
HV CABLE (& LAID HV)
LIVE LV CABLE
Elec LV Alternative pos’n
CT Ratio
All mains have been sized to comply with cable thermal constraints on the basis
of Summer Sustained ratings ducted.
D
TFL Protection (UKPN)
Transformer Size 11kV (kVA)
315 500 800 1000 1250
5A 10A 15A
The MIC/MEC for the Temporary Builder’s Supplies shall be 384.6kVA/0kVA.
)
OFF SITE
ON SITE
BRICK BUILT SUBSTATION ROOM INTEGRAL TO
THE CUSTOMER’S BUILDING, BY OTHERS.
OFF SITE
ON SITE
TOWARDS SUBSTATION
TC(L6174)
EXISTING 11kV Triplex 300mm2 SAC/XLPE/115 AWS UKPN HV NETWORK
(
OFF SITE
ON SITE
C
16
Telecomm
EXISTING 11kV Triplex 300mm2 SAC/XLPE/115 AWS UKPN HV NETWORK
Boundary
EXISTING 11kV Triplex 300mm2 SAC/XLPE/115 AWS UKPN HV NETWORK
Supply Capacity / Load Calculation Basis
The ADMD for
The ADMD for
The ADMD for
The ADMD for
The ADMD for
HV POINT OF CONNECTION
UKPN REF: 8200019568
2No. STRAIGHT JOINTS TO BE CARRIED OUT BY UKPN ONTO EXISTING 11kV 300mm2 AL XLPE/TRIPLEX HV CABLE.
2No. 11kV 300mm2 AL XLPE/TRIPLEX CABLE LAID TO THIS POINT BY POWER ON.
UKPN TO UNDERTAKE FINAL CLOSING JOINTING .
Outside Stop Valve
TOWARDS FEEDER
ND3 FROM MSS KYGB
Embedded generation requiring G98 or G99 compliance has not been declared.
B
15
14
13
HV POINT OF CONNECTION (TBS)
UKPN REF: 8200019568
2No. STRAIGHT JOINTS TO BE CARRIED OUT BY POWER ON ONTO EXISTING 11kV 300mm2 AL XLPE/TRIPLEX HV CABLE.
2No. 11kV 300mm2 AL XLPE/TRIPLEX CABLE LAID TO THIS POINT BY POWER ON.
POWER ON TO UNDERTAKE FINAL CLOSING JOINTING .
11kV Triplex 300mm2 SAC/XLPE/115 AWS 65m
Embedded Generation
12
STAND-ALONE GRP ENCLOSURE BY POWER ON
Disturbing loads has not been declared.
11
10
LEGEND
ELECTRICAL DESIGN
SCALE: NTS
Disturbing Loads
9
11kV Triplex 300mm2 SAC/XLPE/115 AWS 65m
4
3
11kV Triplex 300mm2 SAC/XLPE/115 AWS 55m
A
2
11kV Triplex 300mm2 SAC/XLPE/115 AWS 55m
1
N0023531-1
15
07825 798 416
07815 516 041
A1
Sheet
1/2
Contract Drawing No.
P-0101875/DWG/001
16
L
1
2
5
4
3
ELECTRICAL DESIGN – LV INTERNALS
A
SCALE: NTS
6
7
8
9
All mains have been sized to comply with cable thermal constraints on the basis
of Summer Sustained ratings ducted.
Disturbing Loads
12
Volt drop, Prospective Short Circuit Current (Ph-N), and ELI have been calculated
for all key points on the system with the results included on the schematic
diagram.
The supply exit points for [13No.] 4 bed townhouses (Flats 5603-00-01/13)
supplies shall be the outgoing terminals of 100A MK4 cutouts with 100A fuse
within each unit on the ground floor.
Embedded generation requiring G98 or G99 compliance has not been declared.
Supply Exit Points are labeled “SEP”on this drawing.
Electric Vehicle Charging Points have not been declared on this site.
PME AVAILABILITY
The MIC/MEC for the Temporary Builder’s Supplies shall be 384.6kVA/0kVA.
B
15
14
16
LEGEND
(
)
HV CABLE (& LAID HV)
(
)
LV MAINS CABLE (& LAID LV)
(
)
LV SERVICE CABLE (& LAID SERVICE)
Adoption Information
Substation to have 24hr unrestricted pedestrian & vehicular access for UK
Power Networks (LPN) & ENC authorised staff via dual locking access
arrangements.
Electric Vehicle Charging Points
Supply Capacity / Load Calculation Basis
13
FOR THE TBS ACB, THE NEUTRAL AND EARTH SHALL BE LINKED
WITHIN THE LV CABINET, AFTER WHICH, THEY MUST BE
MAINTAINED SEPARATE BY THE CUSTOMER IN ACCORDANCE WITH
THE LATEST EDITION OF THE BS7671 & BUILDING REGULATIONS
PART P.
The supply exit points for [2No.] 3 bed townhouses (Flats 5607-00-01/02)
supplies shall be the outgoing terminals of 100A MK4 cutouts with 100A fuse
within each unit on the ground floor.
Disturbing loads has not been declared.
Embedded Generation
11
10
A
LIVE LV CABLE
CONTROL / SIGNAL CABLE
B
EARTH BONDING
Supply Exit Points & Metering
The ADMD for
The ADMD for
The ADMD for
The ADMD for
The ADMD for
47No. 1Bed Flats
is assessed at 2.74kVA each.
94No. 2Bed Flats
is assessed at 3.42kVA each.
54No. 3Bed Flats
is assessed at 4.11kVA each.
2No. 3Bed Townhouses is assessed at 5.48kVA each.
13No. 4Bed Townhouses is assessed at 6.84kVA each.
The supply exit points for each Plot (5601, 5602, 5604, 5605, 5606) Residential
units shall be the outgoing terminals of 100A MK4 cut outs with 80A fuse. Group
metered location shall be within the riser room of each respective floor level.
The supply exit points for each Plot (5601, 5602, 5604, 5605, 5606) Landlord
supplies shall be the outgoing terminals of 100A MK4 cutouts with Redlinks
within their respective riser rooms on ground floor.
The supply exit points for externally fed ground floor flats (Flats 5605-00-01/05
& 5606-00-01/06) supplies shall be the outgoing terminals of 100A MK4 cutouts
with 100A fuse within each unit on the ground floor.
The MIC/MEC for the Plot 5601 Landlord Supply is assessed at 61.57kVA/0kVA.
The MIC/MEC for the Plot 5602 Landlord Supply is assessed at 18.98kVA/0kVA.
The MIC/MEC for the Plot 5604 Landlord Supply is assessed at 18.30kVA/0kVA.
The MIC/MEC for the Plot 5605 Landlord Supply is assessed at 35.10kVA/0kVA.
The MIC/MEC for the Plot 5606 Landlord Supply is assessed at 40.32kVA/0kVA.
C
PME SHALL BE OFFERED ON THIS SITE (EXCEPT TBS) AT THE INTAKE
POSITIONS AS DETAILED ON THIS DRAWING. THEREAFTER ALL
SUPPLIES SHALL BE CONSIDERED TN-S DERIVED FROM A PME
SYSTEM.
UK Power Networks (LPN)
UK Power Networks (LPN) shall be adopting the new loop connected RMU and HV
cable from the HV point of connection up to the outgoing HV terminals of the
RMU.
TEMPORARY BUILDER’S SUPPLY WILL BE PROVIDED WITH TT
SUPPLIES AND THE CUSTOMER IS RESPONSIBLE FOR INSTALLING
THEIR OWN EARTHING SYSTEM IN ACCORDANCE WITH BS7671 AND
BUILDING REGULATIONS PART P.
ENC
ENC shall be adopting all work from the outgoing HV terminals of the UK Power
Networks (LPN) RMU up to the supply exit point for each supply.
TERMINATION
JOINT (HV/LV SERVICE/LV MAINS)
PRESSURE END (HV/LV SERVICE/LV MAINS)
EARTH ROD
C
LEGAL BOUNDARIES
NJUG SEPARATION DIAGRAM
Lamp Standard
1720
1550
1255
960
M
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
M
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
PLOTS
5604-04-01
5604-04-02
5604-04-03
5604-04-04
5604-04-05
5604-04-06
%
5605 MSDB #2
8.2
0.03
0.93
M
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
N/E LINK
OUT
100A FUSED
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
MSDB
12 WAYS
1J
N/E LINK
OUT
SEE SHEET 1 FOR
UPSTREAM LV
DISTRIBUTION
5601 MSDB #1
2.4
0.10
4.69
1
0
LEVEL 5
M
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
MSDB
24 WAYS
2J
M
Group
M Metering M
Position
4 WAY
M RED LINKS M
3c 35 Split Conc LS0H
6m 35.1kVA
N/E LINK
IN
PME
POINT
100A FUSED
5604 MSDB #1
9.3
0.02
0.77
MSDB
24 WAYS
2J
M
PLOT 5604 LANDLORD
7.7
0.03
%
0.80
SEE SHEET 1 FOR
UPSTREAM LV
DISTRIBUTION
5605 MSDB #1
12.6
0.02
0.71
3
4
5
6
7
8
9
10
N/E LINK
IN
Cable TV
Gas
600
750
750
Water 900
Telecomm
Water
Elec LV
600
600
Telecomm
900
Gas
Wastewater
Fibre
Heat
Gas
J
Site Address
WATERDEN ROAD
EAST WICK, HACKNEY WICK
LONDON
E20 3AS
K
IF IN DOUBT – ASK
M
5606
MSDB #1
MSDB
24 WAYS
2J
H
I
3c 35 Split Conc LS0H
6m 40.32kVA
SEE SHEET 1 FOR
UPSTREAM LV
DISTRIBUTION
11
Drwn Chkd
EASTWICK & SWEETWATER PHASE 2
Design Engineer
100A FUSED
Mobile
TOUFIQUL HAQ
07825 798 416
Construction Engineer/Project Manager Mobile
5605 MSDB #1
4.1
0.06
2.67
%
PLOT 5606 LANDLORD
3.3
0.07
%
2.74
GARETH WILLIAMS
Scale
Orig. Size
VARIES
N0023531-1
2
Date
PLACES FOR PEOPLE DEVELOPMENTS
Project Name
70mm2 Cu
6491X G/Y PVC
%
DR
M
Network Operator Ref.
1
Elec HV
350
600
600
Cable TV
Client
Water
Plot 5606 Landlord
40.32kVA 3Ø
PME
POINT
PLOT 5605 LANDLORD
7.7
0.03
%
0.77
TH
ELECTRICAL DESIGN
Electricity
Group
M Metering M
Position
8 WAY
M RED LINKS M
100A FUSED
70mm2 Cu
6491X G/Y PVC
4No. 1c 35 Split Conc LS0H
4No. 2 Bed Flats = 13.68kVA
%
M
5605
MSDB #1
31/05/23
DOVECOTE COURT
POTTERS MARSTON HALL
LEICESTERSHIRE, LE9 3JR
TELEPHONE: 03453 223322
[email protected]
PLOTS
5606-01-01
5606-01-02
5606-01-03
5606-01-04
5606-01-05
5606-01-06
5606-01-07
5606-01-08
160A
160A
M
70mm2 Cu
6491X G/Y PVC
SEE SHEET 1 FOR
UPSTREAM LV
DISTRIBUTION
M
Plot 5605 Landlord
35.1kVA 3Ø
DR
All Utilities. One Provider
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
8No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
4No. 2 Bed Flats + 3No. 3 Bed Flats = 28.75kVA
GROUND LEVEL
3c 35 Split Conc LS0H
6m 18.3kVA
PME
POINT
PLOT 5602 LANDLORD
1.6
0.14
%
4.15
PLOTS
5604-00-01
5604-00-02
5604-00-03
5604-00-04
SR
M
8No. 1c 35 Split Conc LS0H 3No. 1 Bed Flats +
2No. 2 Bed Flats + 3No. 3 Bed Flats = 27.39kVA
Plot 5604 Landlord
18.3kVA 3Ø
5604
MSDB #1
M
04/08/23
Amendment
Drawing Title
8No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
4No. 2 Bed Flats + 3No. 3 Bed Flats = 28.75kVA
100A
RED LINK
Group
M Metering M
Position
5 WAY
M RED LINKS M
4c 95 Plain Concentric LS0H
12m 78.04kVA
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
LEVEL 1
Group
M Metering M
Position
6 WAY
M RED LINKS M
N/E LINK
IN
LEVEL 2
M
PLOTS
5605-01-01
5605-01-02
5605-01-03
5605-01-04
5605-01-05
5605-01-06
5605-01-07
5605-01-08
160A
160A
M
4No. 1c 35 Split Conc LS0H
3No. 1 Bed Flats + 2No. 2 Bed Flats = 15.06kVA
%
M
5606-00-01 PLOT REMOVED & 56002-00-05
PLOT ADDED
ORIGINAL ISSUE: APPROVED FOR
CONSTRUCTION
Rev
PLOTS
5606-02-01
5606-02-02
5606-02-03
5606-02-04
5606-02-05
5606-02-06
5606-02-07
5606-02-08
8No. 1c 35 Split Conc LS0H 3No. 1 Bed Flats +
2No. 2 Bed Flats + 3No. 3 Bed Flats = 27.39kVA
M
100A FUSED
5602 MSDB #1
1.7
0.13
4.12
4c 95 Plain Concentric LS0H
12m 97.24kVA
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
PLOTS
5604-01-01
5604-01-02
5604-01-03
5604-01-04
5604-01-05
5604-01-06
160A
160A
GROUND LEVEL
MSDB
24 WAYS
2J
70mm2 Cu
6491X G/Y PVC
SEE SHEET 1 FOR
UPSTREAM LV
DISTRIBUTION
M
M
5602
MSDB #1
PME
POINT
PLOT 5601 LANDLORD
2.1
0.11
%
4.80
PLOTS
5602-00-01
5602-00-02
5602-00-03
5602-00-04
5602-00-05
3c 35 Split Conc LS0H
6m 18.98kVA
N/E LINK
IN
PLOTS
5606-03-01
5606-03-02
5606-03-03
5606-03-04
5606-03-05
5606-03-06
5606-03-07
5606-03-08
8No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
4No. 2 Bed Flats + 3No. 3 Bed Flats = 28.75kVA
PLOTS
5605-02-01
5605-02-02
5605-02-03
5605-02-04
5605-02-05
5605-02-06
5605-02-07
5605-02-08
6No. 1c 35 Split Conc LS0H
6No. 2 Bed Flats = 20.52kVA
Plot 5602 Landlord
18.98kVA 3Ø
160A
160A
Group
M Metering M
Position
5 WAY
M RED LINKS M
5No. 1c 35 Split Conc LS0H
3No. 2 Bed Flats + 2No. 3 Bed Flats = 18.48kVA
%
M
Group
M Metering M
Position
7 WAY
M RED LINKS M
100A FUSED
70mm2 Cu
6491X G/Y PVC
L
GROUND LEVEL
MSDB
24 WAYS
2J
M
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
LEVEL 1
M
100A
RED LINK
PME
POINT
M
100A
RED LINK
160A
200A
GROUND LEVEL
3c 35 Split Conc LS0H
6m 61.57kVA
M
M
7No. 1c 35 Split Conc LS0H 4No. 1 Bed Flats +
3No. 2 Bed Flats = 21.22kVA
Plot 5601 Landlord
61.57kVA 3Ø
M
6No. 1c 35 Split Conc LS0H
6No. 2 Bed Flats = 20.52kVA
PLOTS
5602-01-01
5602-01-02
5602-01-03
5602-01-04
5602-01-05
5602-01-06
5602-01-07
7No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 3No. 3 Bed Flats = 25.33kVA
PLOTS
5601-00-01
5601-00-02
5601-00-03
5601-00-04
5601-00-05
7No. 1c 35 Split Conc LS0H
3No. 2 Bed Flats + 4No. 3 Bed Flats = 26.7kVA
STUD NEEDS TO
BE REMOVED
PLOTS
5605-03-01
5605-03-02
5605-03-03
5605-03-04
5605-03-05
5605-03-06
5605-03-07
5605-03-08
LEVEL 2
M
Group
M Metering M
Position
7 WAY
M RED LINKS M
GROUND LEVEL
Group
M Metering M
Position
7 WAY
M RED LINKS M
MSDB
24 WAYS
1J
8No. 1c 35 Split Conc LS0H 3No. 1 Bed Flats +
2No. 2 Bed Flats + 3No. 3 Bed Flats = 27.39kVA
PLOTS
5604-02-01
5604-02-02
5604-02-03
5604-02-04
5604-02-05
5604-02-06
LEVEL 1
M
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
100A FUSED
6No. 1c 35 Split Conc LS0H
6No. 2 Bed Flats = 20.52kVA
4c 95 Plain Concentric LS0H
9m 41.04kVA
M
LEVEL 1
LEVEL 1
M
5601
MSDB #1
MSDB
12 WAYS
1J
7No. 1c 35 Split Conc LS0H 4No. 1 Bed Flats +
3No. 2 Bed Flats = 21.22kVA
PLOTS
5601-01-01
5601-01-02
5601-01-03
5601-01-04
5601-01-05
5601-01-06
5601-01-07
N/E LINK
IN
LEVEL 2
M
Group
M Metering M
Position
7 WAY
M RED LINKS M
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
STUD NEEDS TO
BE REMOVED
PLOTS
5602-02-01
5602-02-02
5602-02-03
5602-02-04
5602-02-05
5602-02-06
5602-02-07
4c 95 Plain Concentric LS0H
9m 35.6kVA
LEVEL 2
4c 95 Plain Concentric LS0H
12m 93.1kVA
LEVEL 2
M
M
5604
MSDB #2
G
M
5606
MSDB #2
100A FUSED
6No. 1c 35 Split Conc LS0H 4No. 1 Bed Flats +
2No. 2 Bed Flats = 17.8kVA
STUD NEEDS TO
BE REMOVED
PLOTS
5601-02-01
5601-02-02
5601-02-03
5601-02-04
5601-02-05
5601-02-06
5601-02-07
PLOTS
5604-03-01
5604-03-02
5604-03-03
5604-03-04
5604-03-05
5604-03-06
F
PLOTS
5606-04-01
5606-04-02
5606-04-03
5606-04-04
5606-04-05
5606-04-06
5606-04-07
%
LEVEL 3
M
5602
MSDB #2
7No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 3No. 3 Bed Flats = 25.33kVA
K
N/E LINK
OUT
8No. 1c 35 Split Conc LS0H 3No. 1 Bed Flats +
2No. 2 Bed Flats + 3No. 3 Bed Flats = 27.39kVA
STUD NEEDS TO
BE REMOVED
%
100A
RED LINK
N/E LINK
OUT
%
5604 MSDB #2
8.2
0.03
0.86
400A FUSE USED AS SOLID LINK
M
Group
M Metering M
Position
7 WAY
M RED LINKS M
PLOTS
5602-03-01
5602-03-02
5602-03-03
5602-03-04
5602-03-05
5602-03-06
LEVEL 3
M
400A FUSE USED AS SOLID LINK
5602 MSDB #2
1.7
0.14
4.20
LEVEL 3
LEVEL 3
PLOTS
5601-03-01
5601-03-02
5601-03-03
5601-03-04
5601-03-05
5601-03-06
5601-03-07
6No. 1c 35 Split Conc LS0H
6No. 2 Bed Flats = 20.52kVA
100A FUSED
J
M
Group
M Metering M
Position
8 WAY
M RED LINKS M
LEVEL 3
6No. 1c 35 Split Conc LS0H 4No. 1 Bed Flats +
2No. 2 Bed Flats = 17.8kVA
7No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 3No. 3 Bed Flats = 25.33kVA
I
5606 MSDB #2
3.4
0.07
2.84
100A FUSED
7No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 3No. 3 Bed Flats = 25.33kVA
STUD NEEDS TO
BE REMOVED
H
PLOTS
5605-04-01
5605-04-02
5605-04-03
5605-04-04
5605-04-05
5605-04-06
5605-04-07
5605-04-08
M
MSDB
30 WAYS
1J
%
6No. 1c 35 Split Conc LS0H
3No. 2 Bed Flats + 3No. 3 Bed Flats = 22.59kVA
%
5605
MSDB #2
PLOTS
5606-05-01
5606-05-02
5606-05-03
5606-05-04
5606-05-05
5606-05-06
100A
RED LINK
M
Group
M Metering M
Position
7 WAY
M RED LINKS M
MSDB
30 WAYS
1J
%
FURTHEST FLAT
4.9
0.05
1.27
E
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
400A FUSE USED AS SOLID LINK
M
5601
MSDB #2
PLOTS
5602-04-01
5602-04-02
5602-04-03
5602-04-04
5602-04-05
5602-04-06
Recommended positions of
mains and cables in carriageway
M
6No. 1c 35 Split Conc LS0H 2No. 1 Bed Flats +
1No. 2 Bed Flats + 3No. 3 Bed Flats = 21.23kVA
LEVEL 4
%
FURTHEST FLAT
1.5
0.16
4.61
LEVEL 4
400A FUSE USED AS SOLID LINK
LEVEL 4
G
N/E LINK
OUT
PLOTS
5601-04-01
5601-04-02
5601-04-03
5601-04-04
5601-04-05
5601-04-06
5601-04-07
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
PLOT 5604 – 28No. Flats (Group
Metering within Riser)
LEVEL 4
6No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 2No. 3 Bed Flats = 21.22kVA
M
400A FUSE USED AS SOLID LINK
PLOT 5602 – 31No. Flats (Group
Metering within Riser)
FURTHEST FLAT
2.6
0.09
3.25
D
SITE LOCATION PLAN
SCALE: NTS
PLOT 5606 – 37No. Flats (Group
Metering within Riser)
PLOTS
5605-05-01
5605-05-02
5605-05-03
5605-05-04
5605-05-05
5605-05-06
LEVEL 5
M
Group
M Metering M
Position
6 WAY
M RED LINKS M
LEVEL 4
LEVEL 5
M
Carriageway
Recommended positions of
mains and cables in footway
6No. 1c 35 Split Conc LS0H 2No. 1 Bed Flats +
1No. 2 Bed Flats + 3No. 3 Bed Flats = 21.23kVA
PLOTS
5601-05-01
5601-05-02
5601-05-03
5601-05-04
5601-05-05
5601-05-06
5601 MSDB #2
2.1
0.11
4.90
%
M
6No. 1c 35 Split Conc LS0H 1No. 1 Bed Flats +
3No. 2 Bed Flats + 2No. 3 Bed Flats = 21.22kVA
F
PLOTS
5605-06-01
5605-06-02
5605-06-03
5605-06-04
5605-06-05
5605-06-06
Elec HV
450
FURTHEST FLAT
4.9
0.05
1.33
Elec LV Alternative pos’n
PLOTS
5601-06-01
5601-06-02
5601-06-03
5601-06-04
5601-06-05
5601-06-06
%
LEVEL 6
E
PLOT 5605 – 44No. Flats (Group
Metering within Riser)
LEVEL 6
FURTHEST FLAT
1.8
0.13
5.30
Outside Stop Valve
PLOT 5601 – 45No. Flats (Group
Metering within Riser)
Elec LV
D
430
250
Boundary
690
12
13
14
15
07815 516 041
A1
Sheet
2/2
Contract Drawing No.
P-0101875/DWG/001
16
L
1
3
2
5
4
6
7
CADWELD
8
450
CADWELD
A
150
NOTES:
600
A
1. HV EARTH MAT
450
INSTALL 3No. 1200mm (3600mm DEPTH) EARTH ROD AT EACH CORNER OF SUBSTATION PLINTH. AS
INDICATED CONNECT RODS USING 120mm² BARE COPPER EARTHING CONDUCTOR. TOPS OF EARTH RODS
600mm DEEP. CONDUCTOR LAID IN PRE EXCAVATED TRENCH NO LESS THAN 600mm DEEP AND 450mm FROM
THE FOOTINGS.
HV EARTH MAT MUST BE BELOW 10 OHMS BEFORE CABLES CONNECTED.
B
SECTION A-A
(NOT TO SCALE)
IF NECESSARY LAY ADDITIONAL 120mm² BARE COPPER ALONG HV CABLE TRENCH TO ACHIEVE IMPROVED
RESISTANCE TO EARTH VALUE. THIS CONDUCTOR MUST BE SEPARATED BY AT LEAST 9.0m FROM ANY LV
NEUTRAL EARTHING ELECTRODES AND LAID AT LEAST 200mm UNDERNEATH AN HV CABLE (OR IF NOT
POSSIBLE ALONGSIDE THE HV CABLE).
Typical
Transformer
Outline
LV EARTH MAT MUST BE CONNECTED DIRECTLY
TO THE NEUTRAL BAR. THE HV STEELWORK
MUST BE CONNECTED TO THE 6-WAY EARTH
BAR. SEE EARTH BAR DETAILS BELOW.
MOUND OF CONDUCRETE COVERING EARTH
CONDUCTOR
EARTH CONNECTION TO REINFORCING BAR.
EARTH CONDUCTORS TO BE CADWELDED TO
REINFORCEMENT EARTH CONNECTION BAR
450
450
75
THE CABLE PIT WILL BE LEFT UNFILLED AND COVERED WITH GRP GRATINGS.
℄
50mm x 6mm 6-WAY EARTH BAR IN TRANSFORMER PIT.
EXACT POSITION TO BE CONFIRMED DURING INSTALLATION.
B
120mm² BARE COPPER EARTH CONDUCTOR COVERED WITH
150x75mm MOUND OF CONDUCRETE
2. LV NEUTRAL EARTH MAT
A
CONNECT LV NEUTRAL BAR AT THE TRANSFORMER MOUNTER FUSE CABINET (TMFC) TO FIRST EARTH ROD
USING 70mm² 6491X PVC INSULATED STRANDED COPPER EARTH CONDUCTOR. MINIMUM DISTANCE FROM
ANY CONDUCTING METAL ASSOCIATED WITH THE HV EARTH MAT TO BE 9.0m.
A
C
CADWELD
THE BARE EARTH CONDUCTOR AND THE TOPS OF THE EARTH RODS ARE TO BE COVERED IN CONDUCRETE
AFTER INSTALLATION TO BOTH IMPROVE THE EARTH VALUE AND PREVENT INTERFERENCE TO OR THEFT OF
THE EARTHING CONDUCTORS. CONDUCRETE SHALL BE INSTALLED IN ACCORDANCE WITH AN APPROVED
METHOD STATEMENT. IN BRIEF, THE POWDERED CONDUCRETE IS POURED DIRECTLY FROM THE BAGS ONTO
THE EARTH WIRE FORMING A MOUND (AS SHOWN IN SECTION A-A) AND COVERING ALL THE EXPOSED COPPER
INCLUDING THE TOPS OF THE EARTH RODS. THE GROUND IS THEN BACKFILLED IN THE NORMAL WAY. THE
RECOMMENDED PPE, EYE PROTECTION, GLOVES AND RESPIRATOR SHALL BE USED AT ALL TIMES IN
ACCORDANCE WITH COSHH DATA REFERENCE SHEET.
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