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May 2014 Application Reference EN020001 Document Hinkley Point C Connection Project Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) of the Infrastructure Planning (Applications: Prescribed Forms and Procedure) Regulations 2009

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Page 1: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

May 2014Application Reference EN020001

Do

cum

ent

Hinkley Point C Connection Project

Design Drawings400kV Underground Cables

4.8.2

Regulation 5(2)(o) of the Infrastructure Planning(Applications: Prescribed Forms and Procedure)Regulations 2009

Page 2: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

5000 5000 6500

700

0-8

000

DOWN

DROPPERS

9000

-10

000

ELEVATION A - A

1:200

8000

92

00

~6

50

00

Mo

du

la

r B

uild

in

g fo

r

LV

AC

, C

om

ms e

tc

40

00

3000

19

00

0

50

00

A

PLAN

1:200

4500

DN

O S

up

ply

20

00

2000

50

00

50

00

3850

92

00

A

B

B

5000

ELEVATION B - B

1:200

FSL +6m

29000

5000 5000

5000

166

00

D/ES

SA

CSECSE

FSL +6m

2000

20

00

DNO

Supply

6500

15

00

25

00

2500

24

00

24

00

~39000

33

00

420

0

9000

Permanent Gate

Temporary Gate

FLTG

13

40

0

New Equipment

CSE - Cable Sealing End

SA - Surge Arrester

D/ES - Disconnector/Earth Switch

FLTG - Full Line Tension Gantry

- Equipment Foundations

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Notes

Key

Site Map

MMD-322069-E-DR-400UG-XX-0501

B

As Shown

SOUTH MENDIPS

400kV DOUBLE CIRCUIT

CABLE SEALING END COMPOUND

(T-PYLON) GENERAL ARRANGEMENT

PLAN AND ELEVATIONS

PINS SHEET 1 OF 70

13/NG/0201

SHT 1 OF 1

20897 EN020001

CAD

A1

1. For illustration purpose only.

2. Proposed arrangement shown for indicative purposes

only. Dimensions and design may vary depending on

site and installation conditions.

3. BYSTRUP FLT gantries structure based on drawing

number 23_13205_73 Revision D from LSTC.

4. Sensitive equipment to be installed at a minimum of

7.2m AOD according to Flood Risk Assessment:

10/J2M/2046932 P2 - ES Volume 5.23.3

5. Drawing only illustrates principal CSEC structures.

Provision for lighting and security to be designed as

requested. Permanent lighting to be for access only.

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 1 OF 70

10m20m0

1:200

A

July 2013Section 42 Submission

GJB

R

iv

e

r

A

x

e

M

5

Loxton

Biddisham

B

May 2014For DCO Submission

JH LD JB

Page 3: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

New Equipment

CSE - Cable Sealing End

SA - Surge Arrester

D/ES - Disconnector/Earth Switch

LTG - Low Tension Gantry

- Equipment Foundations

15

00

15000

24

00

9000 5000 6500

80

00-9

500

50

00

SA

~34000

~3

00

00

DN

O S

up

ply

Mo

du

la

r B

uild

in

g fo

r

LV

AC

, C

om

ms e

tc

40

00

3000

50

00

CSE

D/ES

AA

ELEVATION A - A

1:200

PLAN

1:200

12

00

0

Down

Dropper

50

00

20

00

2000

DNO Supply

See note 1

900

0-1

000

0

B

B

FSL +6m

FSL +6m

ELEVATION B - B

1:200

5000 50009000

130

00

- 1

40

00

12000

2500

6500

2000

25

00

15

00

20

00

LTG

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Site Map

MMD-322069-E-DR-400UG-XX-0511

B

As Shown

BRIDGWATER T - HORSEY LEVEL

400kV SINGLE CIRCUIT

CABLE SEALING END COMPOUND

TYPICAL GENERAL ARRANGEMENT

PLAN AND ELEVATIONS

PINS SHEET 2 OF 70

13/NG/0203

SHT 1 OF 1

20897 EN020001

ACAD

A1

10m 20m0

1:200

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 2 OF 70

A

July 2013Section 42 Submission

GJB

B

May 2014For DCO Submission

JH LD JB

1. For illustration purpose only.

2. Proposed arrangement shown for indicative purposes

only. Dimensions and design may vary depending on

site and installation conditions.

3. Sensitive equipment to be installed at a minimum of

7.6m AOD according to Flood Risk Assessment

10/J2M/2046931 P2 - ES Volume 5.23.1.

4. Drawing only illustrates principal CSEC structures.

Provision for lighting and security to be designed as

requested. Permanent lighting to be for access only.

Puriton

M5

Bridgwater

Page 4: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Typical Swathe for Open Cut Construction for

400kV Cabling Works

1:200

Subsoil

Stockpile

Subsoil

Stockpile

7m haul road

Construction Swathe Typically 100m (See Note 4)

Temporary

drain

Temporary

drain

Temporary

drain

Temporary

drain

Topsoil

Stockpile

Topsoil

Stockpile

Varies

Ca

ble

C

ircu

it 1

Ca

ble

C

ircu

it 2

Ground Level

Varies Varies

900

m

in.

Varie

s

Well compacted thermally suitable

indigenous backfill

Warning tape

Protective tile

Surrounding cement

bound sand

400kV cables

Cable & Wireless cable

in duct (I/D 100mm)

Pilot cable in duct

(I/D 100mm)

DTS cable in

carrier tube

Detail 1

Typical Direct Buried Cable Trench

1:25

Cross section A-A

Typical Direct Buried Cross Section

1:100

7m haul road

Varies

Varies Varies

Ground Level

Cable Circuit 2

Cable Circuit 1

90

0 m

in

Protective tile

400kV cable

Well compacted thermally suitable

indigenous backfill

Ground Level

Cross Section B-B

Typical Section View of Direct Buried Cables

1:50

Ha

ul R

oad

A A

Cable T

rench

B

B

Cab

le

C

ircuit 2

Cab

le

C

ircuit 1

Cable T

rench

Cable T

rench

Cable T

rench

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Key

MMD-322069-E-DR-400UG-XX-0600

C

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL DIRECT BURIED DETAILS

& CONSTRUCTION SWATHE

GENERAL ARRANGEMENT

PINS SHEET 3 OF 70

13/NG/0204

SHT 1 OF 1

20897 EN020001

CAD

A1

1. Proposed arrangement shown for indicative purpose

only. Dimensions and design may vary depending on

site and installation conditions.

2. Based on NGTS 2.5 installation conditions and the

ratings required by TGN(E) 26/ Issue 3 - Table G39

with both circuits in operation.

3. Circuit separation required to meet ratings at

obstructions with regular occurrence.

4. Construction swathe width may vary according to site

conditions.

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 3 OF 70

See Detail 1See Detail 1

Typical Plan View of Direct Buried Cables

1:200

Proposed direct buried cable alignment

Haul road

10m20m0

1:200

1:100

0 10m5m

2.5m5m0

1:50

1:25

0 2.5m1.250m

A

July 2013Section 42

GJB

B

Oct 2013For Information

GJB

CBS (Cement Bound Sand)

Well compacted thermally suitable

indigenous backfill

C

May 2014For DCO Submission

JH LD JB

Page 5: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Hau

l R

oa

dH

au

l R

oa

d

Cable C

ircuit 1

Cable C

rcuit 2

Cable trench

Cable trench

Cable trench

Existing Road

AA

Cable trench

B

B

Existing HedgerowHedgerow to be temporarily removed

Hedgerow to be temporarily removedExisting Hedgerow

Section A - A

Typical Ducted Cross Section

1:100

7m Haul Road

Cable Circuit 2

Cable Circuit 1

Ground level

Warning Tape

Protective tile

Varies

Varies

VariesVaries

Varies

Varies

Warning Tape

Protective tile

Existing Road

Existing hedgerows to be temporarily

removed if required

Reinforced concrete trench section

Section B - B

Typical Section View of Open Cut Road Crossing

1:50

Protective tile

Cement bound sand trench section

400kV cable

400kV cable in duct

Cement bound sand trench section

75

0 m

in

.

Ground level

Varies Varies

Warning tape

Cable duct

Well compacted thermally

suitable indigenous backfill

Protective tile

400kV cables

Reinforced concrete

2 layers of steel fabric

reinforcement

top and 1 layer bottom

Existing road Level

Pavement reinstatementSub-base

Va

ries

75

0 m

in.

Pilot cable in duct

Cable & Wireless

cable in duct

A

May 2014For DCO Submission

JAH LD JB

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0601

A

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL GENERAL ARRANGEMENT AT

OPEN CUT ROAD CROSSINGS

PINS SHEET 4 OF 70

13/NG/0205

SHT 1 OF 1

20897 EN020001

CAD

A1

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. Ground profiles are shown for illustrative purposes

only.

4. Proposed arrangement shown for indicative

purpose only. Dimensions and design may vary

depending on site and installation conditions.

Typical Plan View of Open Cut Road Crossing

1:200

Detail 1

Typical Ducted Cable Trench

1:25

See Detail 1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATIONS 5(2)(o))

SHEET 4 OF 70

10m20m0

1:200

1:100

0 10m5m

2.5m5m0

1:50

1:25

0 2.5m1.250m

Proposed direct buried cable alignment

Existing road

Proposed ducted cable alignment

Existing hedgerow

Existing hedgerow to be temporarily

removed If required

Reinforced Concrete

CBS (Cement bound sand)

Well compacted thermally suitable

indigenous backfill

Pavement reinstatement

Sub-base

Haul road

Page 6: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Cable trench

Culvert

Cable trench

A

B

Haul Road

Cable Circuit 2

Cable Circuit 1

B

Cable trench

Cable trench

Open D

itch

A

Section A - A

Typical Cable Duct Crossing

(See Note 6)

1:50

Varies2000 2000

Reinforced concrete trench section

Cement bound sand trench sectionCement bound sand trench section

Existing ditch

Ground Level

400kV cable in duct

Protective tile

Varies

(See note 6)

Va

rie

s

400kV cable

Culvert

7m Haul Road

Top of ditch

Bottom of ditch

Top of ditch

Bottom of ditch

VariesVaries

Va

rie

s

Varies

Cable Circuit 2 Cable Circuit 1

Varies

Varies Varies Varies Varies Varies Varies Varies Varies

Va

rie

s

Va

rie

s

(S

ee

n

ote

6

)

Warning tape

400kV Cables

Protective tile

Bottom of Ditch

2 layers of steel fabric reinforcement top and 1 layer bottom

Well compacted thermally

suitable indigenous backfill

Pilot cable in duct

Cable & Wireless

cable in duct

Cable duct

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0602

A

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL GENERAL ARRANGEMENT

AT DITCH CROSSING

PINS SHEET 5 OF 70

13/NG/0206

SHT 1 OF 1

20897 EN020001

CAD

A1

Typical Ducted Cross Section B - B

1:100

Proposed direct buried cable alignment

Proposed ducted cable alignment

Haul road

Water Course

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 5 OF 70

See Detail 1

Typical Plan View of Ditch Crossing

1:200

Detail 1

Typical Ducted Cable Trench Under Ditch

1:25

10m20m0

1:200

1:100

0 10m5m

2.5m5m0

1:50

1:25

0 2.5m1.250m

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. Ground profiles are shown for illustrative purposes

only.

4. Proposed arrangement shown for indicative purpose

only. Dimensions and design may vary depending on

site and installation conditions.

5. Additional reinforcements and high strength concrete

shall be used to increase the level of protection

offered by a standard ducted section due to the

reduced cover to the bottom of the drainage ditch.

6. Depth to be agreed with the relevant stakeholders.

Reinforced Concrete

CBS (Cement bound sand)

Well compacted thermally suitable

indigenous backfill

A

May 2014For DCO Submission

JH LD JB

Page 7: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Cable trench

Cable trench

Cable trench

Cable trench

Haul Road

B

A

A

Existing Utility

B

Cable Circuit 2

Cable Circuit 1

UT

LU

TL

UT

LU

TL

UT

LU

TL

UT

LU

TL

UT

LU

TL

UT

LU

TL

UT

L

Well compacted thermally

suitable indigenous backfill

400kV cable

Cement bound sand or reinforced concrete trench section

Ground Level

Utility

Va

rie

s

Va

rie

s

Protective tile

Cable section to be direct buried or

ducted, subject to utility depth and

construction methodology.

Cement bound sand trench section Cement bound sand trench section

7m haul road

Haul Road

Varies

Section A-A

Typical Utility Crossing - Above Existing Services

1:100

Section A-A

Typical Utility Crossing - Below Existing Services

1:100

Va

rie

s

Haul Road

Varies

Varies Varies

Varies Varies

7m haul road

Ground Level

Ground Level

Cable Circuit 2

Cable Circuit 2

Cable Circuit 1

Cable Circuit 1

Utility

Utility

90

0 m

in

.

Protective tile

400kV cable

Well compacted thermally suitable

indigenous backfill

Ground Level

Utility

Varie

s

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0603

A

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL SERVICES CROSSING DETAIL

& GENERAL ARRANGEMENT

PINS SHEET 6 OF 70

13/NG/0237

SHT 1 OF 1

20897 EN020001

CAD

A1

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. Existing ground profiles shown are for general

indication only.

4. Proposed arrangement shown for indicative purposes

only. Dimensions and design detail may vary

depending on site and installation conditions.

5. Spacing between utility and cable is subject to

agreement with the relevant utility provider at

individual locations.

Proposed direct buried cable alignment

Haul road

Existing UtilityUTL

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATIONS 5(2)(o))

SHEET 6 OF 70

Section B-B

Typical Utility Crossing - Below Existing Services

1:50

Section B-B

Typical Utility Crossing - Above Existing Services

1:50

Typical Plan View of Utility Crossing

1:200

10m20m0

1:200

1:100

0 10m5m

2.5m 5m0

1:50

See Detail 1

Sheet 3 of 70

Proposed direct buried or ducted

cable alignment

Reinforced Concrete

CBS (Cement Bound Sand)

Well compacted thermally suitable

indigenous backfill

A

May 2014For DCO Submission

JH LD JB

Page 8: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

B

B

H

a

u

l

R

o

a

d

C

C

Link box pillars

Link box pillars

Joint bay

C

a

b

l

e

C

i

r

c

u

i

t

2

C

a

b

l

e

C

i

r

c

u

i

t

1

A

A

Access gate

Access gate

Bonding cables

Bonding cables

Cable & Wireless

duct chambers

Cable & Wireless

duct chambers

D

D

E

E

V

a

r

i

e

s

V

a

r

i

e

s

V

a

r

i

e

s

Ground Level

Link Box Pillars

Fence

2000

15

00

1000

6000

Fence

Access gate

15

00

Well compacted thermally

suitable indigenous backfill

Warning Tape

Protection Tile

Cement bound

sand

Pilot cable

in duct

Cable &

Wireless

cable in duct

Ground Level

Ground Level

Fence Fence

Link box pillar

600

3000

15

00

13

00

1800 750 1800

10000 20002000

Typical cable trench profile view

15

00

Ground Level

Warning

Tape

Protection Tiles

Joint bay

base slab

Sump

Cable & Wireless Duct

Chamber Section D - D

1:20

1550

90

0

Sump with

grating

Cable & Wireless

Cable in duct

Cable

bearer

inserts

Fall to sump

Ground Level

Cable & Wireless Duct

Chamber Section E - E

1:20

850

Duct

Step irons

Ground Level

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0700

B

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL GENERAL ARRANGEMENT OF

JOINT BAY WITH LINK BOX PILLAR

PINS SHEET 7 OF 70

13/NG/0207

SHT 1 OF 1

20897 EN020001

CAD

A1

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. Existing ground profiles shown are for general

indication only.

4. Proposed arrangement shown for indicative

purpose only. Dimensions and design may vary

depending on site and installation conditions.

5. Cable & Wireless pulling chamber proposed as per

Cable & Wireless specification. Refer to

PDD-20897L2-REP-0005.

Typical cable trench layout showing

crossing points

1:200

Section C - C

Link Box Pillar Detail

1:25

Section A - A

Typical Joint Bay Cross Section

1:25

Section B - B

Link Box Pillar Detail

1:25

Haul road

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 7 OF 70

Typical Cable Trench Showing Crossing Points

Profile View

1:50

AA

10m20m0

1:200

2.5m5m0

1:50

1:25

0 2.5m1.250m

A

July 2013SECTION 42 SUBMISSION

JAH

Proposed direct buried cable alignment

Concrete

CBS (Cement bound sand)

Well compacted thermally suitable

indigenous backfill

Single sized granular material

Sub-base

B

May 2014For DCO Submission

JH LD JB

Page 9: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Link box pillars

Link box pillars

Joint bay

C

a

b

l

e

C

i

r

c

u

i

t

2

C

a

b

l

e

C

i

r

c

u

i

t

1

H

a

u

l

R

o

a

d

See note 4

Cable & Wireless

duct chambers

Cable & Wireless

duct chambers

DESCRIPTION SIZE WEIGHT

TRACTOR 5.2m LONG x 2.54m WIDE x 3m HIGH 8 TONNES

TRAILER 5.9m LONG x 4.4m WIDE x 2.5m HIGH 5 TONNES

TRAILER WITH CABLE DRUM AND CABLE 5.9m LONG x 4.4m WIDE x 5m (APPROX) HIGH 40 TONNES

CABLE GUIDE 5m LONG x 3m WIDE x 3m (APPROX) HIGH 2.5 TONNES

20m Temporary Hardstanding

7m

15m TURNING CIRCLE FOR TRACTOR

DRUM / TRAILER DETAILS

Te

mp

ora

ry

Ha

rd

sta

nd

in

g

Tractor

Drum

Trailer

Cable guide

Direction of cable release

MMD-322069-E-DR-400UG-XX-0701

B

As Shown

400kV UNDERGROUND

CABLE INSTALLATION

TYPICAL GENERAL ARRANGEMENT OF

CABLE PULLING LOCATION

PINS SHEET 8 OF 70

13/NG/0208

SHT 1 OF 1

20897 EN020001

CAD

A1

Typical Cable Trench Layout

1:200

1. Do not scale any items of information from this

drawing.

2. Hardstanding shall be capable of supporting

equipment/mobile plant.

3. Proposed arrangement shown for indicative

purposes only, dimensions and design may vary

depending on site and installation conditions.

4. Indicative location of trailer mounted cable drum.

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Key

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 8 OF 70

Proposed direct buried cable alignment

Haul road

Cable Pulling Arrangement

NTS

10m 20m0

1:200

A

July 2013Section 42 Submission

GJB

B

May 2014For DCO Submission

JH LD JB

Page 10: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Office T

raffic R

oute

Construction Traffic

One Way System

Heras Fence

Laydown

Area

Wheel Wash

Point

To/From Haul Road

To/From Haul Road

or Main Road

Pedestrian A

ccess R

oute

45m x 45m

12x Portakabins

View A

Elevation on View A

Security

Gate House

~100m

~1

00

m

2.4

m

T

o T

op

o

f F

en

ce

1.5

m

T

o T

op

o

f

S

oil B

un

d

Spoil

3m Wide Soil Bund

3m Wide Soil Bund

30x Car Parking Bays

5x Minibus

Parking Bays

Fuel Tank

Storage

Waste S

torage A

reas

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0800

B

NTS

TYPICAL 400kV COMPOUND -

GENERAL ARRANGEMENT

PINS SHEET 9 of 70

13/NG/0209

SHT 1 of 3

20897 EN020001

CAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 9 OF 70

1) Dimensions and layout arrangement shown is

indicative only. Design will vary according to the

construction contractors requirements, the available

area and the specific site constraints.

2) Portacabins will be single storey but may be raised to

take account of potential flood risk at certain locations.

Details to be agreed with relevant stakeholders.

3) Soil bund will be designed with suitable gaps/ drainage

pipes to allow water flow in flood conditions. Details to

be agreed with relevant stakeholders.

A

July 2013Section 42 Submission

JAH

Drawing to be read in conjunction with:

13/NG/0209 (Sheet 10 of 70) - Typical 400kV

Satellite Compound - General Arrangement

13/NG/0209 (Sheet 11 of 70) - Typical 400kV

Compound Including Test Equipment - General

Arrangement

Pedestrian Access

Soil Bund

Spoil

B

May 2014For DCO Submission

JAH LD JB

Page 11: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Office T

raffic R

oute

Construction Traffic

One Way System

30x Car Parking Bays

Laydown

Area

Wheel Wash

Point

To/From

Haul Road

20m x 20m

Pedestrian A

ccess R

oute

Security

Gate House

View A

Elevation on View A

Fuel Tank

Storage

~7

5m

Spoil

~85m

12x Portakabins

5x Minibus Parking Bays

To/From Haul Road

or Main Road

3m Wide Soil Bund

Waste S

torage A

reas

3m Wide Soil Bund

2.4

m

T

o T

op

o

f F

en

ce

1.5

m

T

o T

op

o

f

S

oil B

un

d

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0804

A

NTS

TYPICAL SITE LAYDOWN AREA

GENERAL ARRANGEMENT - 400kV

SATELLITE COMPOUND

(SHEET 2 OF 3)

PINS SHEET 10 of 70

13/NG/0209

SHT 2 of 3

20897 EN020001

CAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATIONS 5(2)(o))

SHEET 10 OF 70

Drawing to be read in conjunction with:

13/NG/0209 (Sheet 9 of 70) - Typical 400kV

Compound - General Arrangement

13/NG/0209 (Sheet 11 of 70) - Typical 400kV

Compound Including Test Equipment - General

Arrangement

Pedestrian Access

Soil Bund

Spoil

1) Dimensions and layout arrangement shown is

indicative only. Design will vary according to the

construction contractors requirements, the available

area and the specific site constraints.

2) Portacabins will be single storey but may be raised to

take account of potential flood risk at certain locations.

Details to be agreed with relevant stakeholders.

3) Soil bund will be designed with suitable gaps/ drainage

pipes to allow water flow in flood conditions. Details to

be agreed with relevant stakeholders.

A

May 2014For DCO Submission

JAH LD JB

Page 12: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Office T

raffic R

oute

Construction Traffic

One Way System

Heras Fence

Wheel Wash

Point

To/From Haul Road

View A

Elevation on View A

Security

Gate House

~115m

~1

10

m

Spoil

12x Portakabins

5x Minibus

Parking Bays

Pedestrian A

ccess R

oute

30x Car Parking Bays

Fuel Tank

Storage

4x HV Cabling

Test Equipment

To/From Haul Road

or Main Road

3m Wide Soil Bund

3m Wide Soil Bund

2.4

m

T

o T

op

o

f F

en

ce

1.5

m

T

o T

op

o

f

S

oil B

un

d

Waste S

torage A

reas

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-E-DR-400UG-XX-0802

A

NTS

TYPICAL 400kV COMPOUND

INCLUDING TEST EQUIPMENT -

GENERAL ARRANGEMENT

PINS 11 of 70

13/NG/0209

SHT 3 of 3

20897 EN020001

CAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 11 OF 70

Pedestrian Access

Soil Bund

Spoil

1) Dimensions and layout arrangement shown is

indicative only. Design will vary according to the

construction contractors requirements, the available

area and the specific site constraints.

2) Portacabins will be single storey but may be raised to

take account of potential flood risk at certain locations.

Details to be agreed with relevant stakeholders.

3) Soil bund will be designed with suitable gaps/ drainage

pipes to allow water flow in flood conditions. Details to

be agreed with relevant stakeholders.

Drawing to be read in conjunction with:

13/NG/0209 (Sheet 9 of 70) - Typical 400kV

Compound - General Arrangement

13/NG/0209 (Sheet 10 of 70) - Typical 400kV

Satellite Compound - General Arrangement

A

May 2014For DCO Submission

JAH LD JB

Page 13: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

2000 min.

2000 min.

Existing ground

level

Existing river profile

(see Note 5)

(TBC)

(TBC)

Proposed haul road

Parapet

Secured gated

access at both

ends of bridge

1

10

Proposed haul road

Clear span approx. 34000 (depends on crossing location)

Secured gated

access at both

ends of bridge

Potential for cladding or

painted colour scheme to suit

landscaping requirement

Locally sourced stone for

abutment cladding where

possible

1

10

Steps provided for Public

Right of Way. Alternative

access route around base

of ramp if steps are not

used.

60

0 m

in

.

(T

BC

)

205

0

(ap

prox.)

250

0

(a

pprox.)

14210

25

00

Trough

400 kV power

cables in trough

(CBS surround with

secured heavy duty

lids)

5200*

Grassed paving for

light maintenance

vehicle access

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Notes

MMD-322069-C-DR-400UG-XX-0900

A

AS SHOWN

RIVER AXE CABLE BRIDGE

ELEVATION AND CROSS SECTION

PINS SHEET 12 OF 70

13/NG/0244

SHT 1 OF 3

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 12 OF 70

1. All dimensions are in millimetres unless

otherwise stated.

2. This drawing to be read in conjunction with

Drawings Sheet 13 & 14 of 70.

3. Do not scale any items of information from this

drawing.

4. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. River Axe profile based on Topographic Survey

Drawing dated 12/04/2013 provided by National

Grid.

Elevation

1 : 100

Typical Section : Half-through Girder

(Cable and Light Vehicle Access Bridge)

1 : 50

* Minimum cable separation based on initial discussions subject to

design development

MMD-322069-C-DR-400UG-XX-0900

Grasscrete

Concrete

CBS (Cement Bound Sand)

Sub-base

2.5m 5m0

1:501:1000

0 100m50m

A

May 2014For DCO Submission

JAH LD JB

Page 14: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Existing river profile

Approx. 34000 (see Note 4)

33400 39580

1

10

50005000

1

10

Existing ground profile

Proposed ramp

Existing ground profile

Proposed ramp

Proposed River Axe

Cable Bridge

A

A

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

Site Map

REPRODUCED FROM ORDNANCE SURVEY MAPS.

BY PERMISSION OF THE ORDNANCE SURVEY ON

BEHALF OF THE CONTROLLER HER MAJESTY'S

STATIONERY OFFICE. © CROWN COPYRIGHT

ORDNANCE SURVEY. OS LICENCE NO. 100048471

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-C-DR-400UG-XX-0901

A

AS SHOWN

RIVER AXE CABLE BRIDGE

PLAN AND ELEVATION OF RAMP

PINS SHEET 13 OF 70

13/NG/0244

SHT 2 OF 3

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 13 OF 70

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. This drawing to be read in conjunction with

Drawings Sheet 12 & 14 of 70

4. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. River Axe profile based on Topographic Survey

Drawing dated 12/04/2013 provided by National

Grid.

Proposed Permanent Bridge Ramp Elevation

(Looking west)

1 : 200

Plan

1 : 500

Proposed River Axe cable bridge

structure

Proposed haul road

Proposed embankment

Proposed temporary bridge

LOXTON

WEBBINGTON

BIDDISHAM

M

5

10m20m0

1:200

25m50m0

1:500

MMD-322069-C-DR-400UG-XX-0901

A

May 2014For DCO Submission

JAH LD JB

Page 15: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

8000 (approx.)

20

50

Permanent River Axe Bridge

Top of river bank

Carriageway = 7356

Transom overall = 10980

Clear = 8621

12

00

Temporary River Axe Bridge

60

0

14210

min

.

(a

pp

ro

x.)

(a

pp

ro

x.)

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Notes

MMD-322069-C-DR-400UG-XX-0902

A

AS SHOWN

RIVER AXE CABLE BRIDGE

COMBINED CROSS SECTION

OF TEMPORARY AND

PERMANENT BRIDGES

PINS SHEET 14 OF 70

13/NG/0244

SHT 3 OF 3

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 14 OF 70

1. All dimensions are in millimetres unless

otherwise stated.

2. Do not scale any items of information from this

drawing.

3. This drawing to be read in conjunction with

Drawings Sheet 12 & 13 of 70.

4. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

Section A - A

1 : 50

2.5m 5m0

1:50

MMD-322069-C-DR-400UG-XX-0902

Grasscrete

Concrete

CBS (Cement Bound Sand)

Sub-base

A

May 2014For DCO Submission

JAH LD JB

Page 16: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

Mabey Universal Bridge up to 40500 (Variable to Suit Crossing)

60

0

(T

BC

)

Existing ground level

Proposed haul road

Proposed haul road

Indicative river profile

Temporary foundations

shown indicatively

min. 600 above max. flood level (TBC)

1

40

1

40

Bearing centres = 40373

Carriageway = 7356

Transom overall = 10980

8850

Clear = 8621

17

23

75

2

730

730

10

18

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

MMD-322069-C-DR-GEN-XX-0007

B

As Shown

TYPICAL TEMPORARY BRIDGE

PINS SHEET 15 of 70

13/NG/0225

SHT 1 OF 1

20897 EN020001

ACAD

A1

Elevation

1 : 100

Typical Section: Temporary Bridge Example

(2 lanes)

1 : 50

1. All dimensions are in millimetres unless otherwise

stated.

2. Do not scale any items of information from this

drawing.

3. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

4. Temporary bridge based on Mabey Universal

bridge information (received 21.05.2013)

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 15 OF 70

B

May 2014For DCO Submission

JAH LD JB

A

July 2013For Sec 42 Submission

JAH

Page 17: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

60

0

Approx. 8000

3000 x 1800

Box culvert

(internal dimensions)

Existing ground level

Existing watercourse profile

(see Note 5)

Granular backfill and

foundation

(shown indicatively)

Road level

Potential cladding or concrete

treatment to suit landscaping

requirements

(T

BC

)

Vehicle restraint systems (shown

indicatively)

Proposed ramp

5% max. (s

ee Note 7) 5% max. (see Note 7)

Wingwall

(shown indicatively)

13485

Existing

watercourse

Top of river bank

12820

Trough

400 kV power cables in

trough

(CBS surround with

secured heavy duty lids)

Grassed paving to carry

transformer transporter

loading

5200* min.

5000#

Box culvert

Wingwall

(shown indicatively)

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Key

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Notes

MMD-322069-C-DR-400UG-XX-0910

A

AS SHOWN

TOWERHEAD BROOK CABLE CROSSING

ELEVATION AND CROSS SECTION

(CULVERT OPTION)

PINS SHEET 16 OF 70

13/NG/0245

SHT 1 OF 2

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 16 OF 70

Elevation (Looking West)

1 : 50

Typical Section

(Combined Transformer Access and Cable Bridge)

1 : 50

* Minimum cable separation based on initial discussions subject to

design development

1. All dimensions are in millimetres unless

otherwise stated.

2. This drawing to be read in conjunction with

Drawing Sheet 17 of 70.

3. Do not scale any items of information from this

drawing.

4. All structural arrangements of crossing shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. Towerhead Brook profile based on Topographic

Survey Drawing dated 12/04/2013 provided by

National Grid.

6. Minimum requirement for slope transition to be

confirmed by transformer transporter.

7. Ramp: maximum gradient 5%, minimum

transition of 20m from 0 - 5%.

# Minimum construction/transformer access width based on initial

discussions subject to design development

2.5m5m0

1:50

MMD-322069-C-DR-400UG-XX-0910

Grasscrete

Concrete

CBS (Cement Bound Sand)

Sub-base

Existing watercourse

A

May 2014For DCO Submission

JAH LD JB

Page 18: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

8000 3870058700

Existing ground

profile

Proposed ramp

max. gradient 5%

(see Note 7)

Proposed haul

road

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

Site Map

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

REPRODUCED FROM ORDNANCE SURVEY MAPS.

BY PERMISSION OF THE ORDNANCE SURVEY ON

BEHALF OF THE CONTROLLER HER MAJESTY'S

STATIONERY OFFICE. © CROWN COPYRIGHT

ORDNANCE SURVEY. OS LICENCE NO. 100048471

MMD-322069-C-DR-400UG-XX-0911

A

AS SHOWN

TOWERHEAD BROOK CABLE CROSSING

PLAN AND ELEVATION OF RAMP

(CULVERT OPTION)

PINS SHEET 17 OF 70

13/NG/0245

SHT 2 OF 2

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 17 OF 70

1. All dimensions are in millimetres unless

otherwise stated.

2. Do not scale any items of information from this

drawing.

3. This drawing to be read in conjunction with

Drawing Sheet 16 of 70.

4. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. Towerhead Brook profile based on Topographic

Survey Drawing dated 12/04/2013 provided by

National Grid.

6. Minimum requirement for slope transition to be

confirmed by transformer transporter.

7. Ramp: maximum gradient 5%, minimum

transition of 20m from 0 - 5%.

Proposed Ramp Elevation

1 : 200

Plan

1 : 500

Proposed Towerhead Brook

bridge structure

Proposed haul road

Proposed embankment

BANWELL

SANDFORD

10m20m0

1:200

25m50m0

1:500

MMD-322069-C-DR-400UG-XX-0911

A

May 2014For DCO Submission

JAH LD JB

Page 19: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

60

0

TB

C

8000 (approx.)

Existing ground level

Existing watercourse profile (see

Note 5)

(TBC)

2000 min.

(TBC)

2000 min.

Locally sourced stone for

abutment cladding where

possible

Road level

Potential cladding or concrete

treatment to suit landscaping

requirements

Proposed ramp

Vehicle restraint systems (shown

indicatively)

5% max. (s

ee Note 7) 5% max. (see Note 7)

12820

11

00

Trough

400 kV power cables in

trough

(CBS surround with

secured heavy duty lids)

13285

Existing watercourse

Top of river bank

5200* min.

5000#

60

0

TB

C

Grassed paving to carry

transformer transporter

loading

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

Key

MMD-322069-C-DR-400UG-XX-0912

A

TOWERHEAD BROOK CABLE CROSSING

ELEVATION AND CROSS SECTION

(BRIDGE OPTION)

PINS SHEET 18 OF 70

13/NG/0246

SHT 1 OF 2

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 18 OF 70

Elevation (Looking West)

1 : 50

Typical Section

(Combined Transformer Access and Cable Bridge)

1 : 50

* Minimum cable separation based on initial discussions subject to

design development

1. All dimensions are in millimetres unless

otherwise stated.

2. This drawing to be read in conjunction with

Drawing Sheet 19 of 70

3. Do not scale any items of information from this

drawing.

4. All structural arrangements of crossing shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. Towerhead Brook profile based on Topographic

Survey Drawing dated 12/04/2013 provided by

National Grid.

6. Minimum requirement for slope transition to be

confirmed by transformer transporter.

7. Ramp: maximum gradient 5%, minimum

transition of 20m from 0 - 5%.

# Minimum construction/transformer access width based on initial

discussions subject to design development

2.5m5m0

1:50

MMD-322069-C-DR-400UG-XX-0912

Grasscrete

Concrete

CBS (Cement Bound Sand)

Sub-base

Existing watercourse

A

May 2014For DCO Submission

JAH LD JB

Page 20: Design Drawings 400kV Underground Cables - National … ·  · 2017-10-19Design Drawings 400kV Underground Cables 4.8.2 Regulation 5(2)(o) ... shall be used to increase the level

8000 3910059600

Existing ground

profile

Proposed ramp

max. gradient 5%

(see Note 7)

Proposed haul

road

NG INVESTMENT No. APPLICATION No.

NG DRAWING No. SCALE

ISSUE

TITLE:

ISSUE DATE COMMENTS CHK'D APP'DDRAWN

Notes

Key

Site Map

MMD DRAWING No.

COPYRIGHT NOT TO BE REPRODUCED WITHOUT THE WRITTEN PERMISSION OF THE NATIONAL GRID ELECTRICITY TRANSMISSION Plc

REPRODUCED FROM ORDNANCE SURVEY MAPS.

BY PERMISSION OF THE ORDNANCE SURVEY ON

BEHALF OF THE CONTROLLER HER MAJESTY'S

STATIONERY OFFICE. © CROWN COPYRIGHT

ORDNANCE SURVEY. OS LICENCE NO. 100048471

MMD-322069-C-DR-400UG-XX-0913

A

AS SHOWN

TOWERHEAD BROOK CABLE CROSSING

PLAN AND ELEVATION OF RAMP

(BRIDGE OPTION)

PINS SHEET 19 OF 70

13/NG/0246

SHT 2 of 2

20897 EN020001

ACAD

A1

NATIONAL GRID (HINKLEY POINT C CONNECTION PROJECT) ORDER

DESIGN DRAWINGS

(REGULATION 5(2)(o))

SHEET 19 OF 70

1. All dimensions are in millimetres unless

otherwise stated.

2. Do not scale any items of information from this

drawing.

3. This drawing to be read in conjunction with

Drawings Sheet 18 of 70.

4. All structural arrangements of bridge shown

indicatively, dimensions subject to 3rd party

discussions, on site survey results and design

development.

5. `Towerhead Brook profile based on Topographic

Survey Drawing dated 12/04/2013 provided by

National Grid.

6. Minimum requirement for slope transition to be

confirmed by transformer transporter.

7. Ramp: maximum gradient 5%, minimum

transition of 20m from 0 - 5%.

Proposed Ramp Elevation

1 : 200

Plan

1 : 500

Proposed Towerhead Brook

bridge structure

Proposed haul road

Proposed embankment

BANWELL

SANDFORD

10m20m0

1:200

25m50m0

1:500

MMD-322069-C-DR-400UG-XX-0913

A

May 2014For DCO Submission

JAH LD JB