Virgin Media Project Lightning Developers Guide · PDF fileVirgin Media Project Lightning Developers Guide

Technical Information to support your on-site deployment.

This guide is intended to support your on site teams in the deployment of our minimum requirements for civils infrastructure and wiring required in each premise. All information within this guide is supplied for information

purposes only and does not constitute a change in terms of your agreed contract with Virgin Media.

This is a living document and if printed then all information should be treated as subject to change. If you are unsure of any aspect of this document then please refer to your Virgin Media site contact in the first instance for support.

Stay in touch, upload your new site requests and find our latest technical documentation at

www.virginmedia.com/developer

Online Version 1.4

New Build

How to install on site civils items like duct and

inspection chambers.

Fire stopping and LSZH guidance.

Internal wiring guides for all build types.

Details on our distribution cabinets

and what they look like.

Regional site contact details.

Guidance on our site feasibility drawings.Advice on using media plates

inside your properties.

3 – New Build Site Drawing GuidelinesA brief guide explaining the symbols on our site feasibility drawings.

4 – Chamber Sizes and Approved LidsAn overview of the Virgin Media approved chamber sizes and supplied range of frames and covers.

5 – Monobox Chamber AssemblyA guide to support the deployment of the Cubis Monobox Assembly.

6 – Modula Chamber AssemblyA guide to support the deployment of the Cubis Modula Assembly.

7 – Fortress Chamber AssemblyA guide to support the deployment of the Cubis Fortress Assembly.

8 – Ultima Chamber AssemblyA guide to support the deployment of the Cubis Ultima Assembly.

9 – Brick Built ChambersAn overview of the minimum standards expected for building brick chambers.

10 - Concrete Preformed ChambersAn overview of the minimum standards expected for pre-forming concrete chambers.

11 – Footway Chamber ReinforcementA brief guide explaining the minimum re-bar requirements for B125 class chambers.

12 – Carriageway Chamber ReinforcementA brief guide explaining the minimum re-bar requirements for D400 class chambers.

13 – Re-bar Shape CodesA brief guide of the basic re-bar shape codes for reinforced concrete chambers.

14 – FTTP and HFC Termination BoxAn overview of the build requirements for a footway termination box.

15 – Virgin Media NJUG RequirementsAn overview of the NJUG requirements and how Virgin Medias network should sit alongside other utilities.

16 – Duct Formation, Capacity and OccupationA brief guide explaining how our ducts are utilised and the importance of the correct trench formation.

17 – Typical Layout of Duct in TrenchesA brief guide explaining the minimum requirements for forming our duct in a trench.

18 – HFC Distribution CabinetsAn overview of our street cabinet range in an HFC build area.

19 – FTTP Distribution CabinetsAn overview of our street cabinet range in an FTTP build area.

20 – Nodal Cabinet Space RequirementsA brief guide explaining the minimum space required around one of our fibre cabinets.

21 – New Build Civils Duct ItemsAn overview of the duct items we supply to support our network build on your site.

22 – Pre Wire to Individual PointsA guide to show how to wire a new property to individual internal points.

23 – Pre Wire to an Internal Termination BoxA guide to show how to wire a new property to individual points from an internal termination point.

24 – Media Plate DeploymentA guide showing how to utilise a media plate for Virgin Media services.

25 – Individual MDU Pre WireA guide to show how to wire an apartment within a larger MDU.

26 – Large MDU Pre WireA brief guide explaining the cable requirements in a large MDU.

27 – Blown Fibre OverviewA brief guide to show what blown fibre is all about.

28 – Pre Wire for FTTPA guide to show how to wire a property to support local FTTP network build.

29 – FTTP Blown Fibre on a New Build siteA brief guide to show how blown fibre works on a new build site.

30 – LSZH and Fire Stopping GuidelinesA brief guide explaining LZSH and fire stopping considerations for new build properties.

31 – New Build ContactsFind your local New Build contact and get started with Virgin Media on your new site.

New Build Developers Guide

Contents

This guide is intended to support both your planning and delivery functions with technical information on our network build. If you have any queries about deployment of Virgin Media network on your site then please contact your local New Build Officer.

Chambers

Duct and Street Cabinets

Pre Wiring Guidance

Version 1.2 Revised 25/01/2017

Created By Stephen Scott

Authorised by Statutory and Standards

New Build Site Drawing Guidelines

© 2017 Virgin Media Ltd. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means (Electronic, Mechanical, Photocopying, Recording or otherwise) without the prior written expressed consent of the Company.

VMTD0001

Drawing owned and maintained by Virgin Media Technical Drawings. For any queries or feedback please contact

[email protected]

Drawing Symbols

Footway/Carriageway Chamber

Designation of chamber to be specified as per Virgin Media standards (FW4/FW6/CW1 etc.)

Works for developer will be highlighted blue and works for Virgin Media contractor will be red.

Swept Tee (Lateral Connection)

Tee s will be shown sweeping in the direction of the serving distribution cabinet as

shown in the examples above.

Distribution and Nodal Cabinets

Cabinets are highlighted as an inverted triangle. If a chamber is required for the cabinet build (non FTTP) then this will be

highlighted at the base of the cabinet in red to determine Virgin Media contractor works.

Off Site (Virgin Media) Works

Works to be completed by Virgin Media will be highlighted in red and will encompass all works external to a developers site allowing the Virgin Media network to reach the development.

On Site (Developers) Works

On Site works to be completed by developer will be highlighted in blue to show the variation to

Virgin Media works. This includes on site chamber construction as part of cabinet deployment.

Duct Arrangements

Duct routes are all shown as a single line, the number of ducts in the route will be signified by a way count for example a 2 way duct is

signified as 2W. For full details on duct arrangements please see drawing VMTD0017d.

2W

Direction of sweep

Chamber Dimensions

FW2 – 730 x 460 x 465FW3 – 750 x 600 x 600FW4 – 915 x 445 x 600

FW6 – 1310 x 610 x 750FW10 – 2320 x 740 x 750

CW1 – 600 x 600 x 900CW2 – 1200 x 675 x 900CW3 – 1800 x 675 x 900

Approx. brick built chamber dimensions. L x W x D. Dimensions correct as of January 2017, all dimensions in

millimetres. For full details on individual chamber specifications please refer to the individual drawing suitable for the chamber size you require in the Developers Guide.




Chamber Sizes and Approved Lids


VMTD0008


[email protected]

FW3

AX-S Concrete Infill

Cubis AX-S Concrete Infill covers are the sole approved footway cover used by Virgin Media.

AX-S Concrete Infill covers are rated to B125 load classification and meets the requirements of BS EN124: 1994 (B125). All concrete infill

lids are slip resistant and have no inherent scrap value.

FW4 AX-S Concrete Infill raising frame,

recommended for use with the Monobox Chamber Assembly

AX-S Recessed

FW3

FW4

Silent Knight and Inter-Ax2 Ductile Iron

CW1 CW2

Skid resistant D400 class/Group 4 carriageway frame and covers. Suitable for use in carriageway environments only.

Recessed covers are tested (unfilled) to the B125 load classification and can be filled with

any material to suit the surrounding area.

In line with industry specification, individual AX-S recessed covers will not weigh more

than 78Kg even when filled. This is to allow a single person to lift out the cover using the

lift and slide design.

Please discuss your chamber requirements with your local Virgin Media site contact before site works begin. Standard chamber lids can be sourced quickly but there may be a lead time on specialist covers/recessed covers.




Monobox© Chamber Assembly


VMTD0004

1. All dimensions in millimetres unless otherwise stated.2. Reinstatement to comply with the requirements of the NRSWA (subject to category).3. All duct ends to be finished with a bell mouth where possible or finished 50mm from edge of interior wall.4. The maximum number of duct entries into any single wall is 2. no.5. All materials and workmanship to be in accordance with the specification.6. Virgin Media supplied Cubis Footway covers and frames to be class B125 to BSEN124. A separate riser frame is suggested for this setup and should be utilised.7. Concrete base and surround (if required) to be low water/cement ratio (low slump) Grade C40/20 for non aggressive soil conditions, for other soil conditions see Eurocode 2 part 1 sections 3 and 6 recommendations and obtain Virgin Media Delivery Engineers approval prior to construction. The mix design shall take full account of ground sulphate content conditions and comply with table 6.1 of Eurocode 2.8. Concrete base slab to be placed, tamped and surface finished. Cubis pre formed chamber to be installed and levelled to suit before any cuts are made in the assembly.9. Duct entries vary in number, grouping and orientation. Duct entry positions should be agreed with the Virgin Media Build Engineer prior to construction..10. Draw lines shall be secured inside chambers by tying off to a suitable fixture or by tying to an approved batten.

11. Backfill to be type 1 as standard and compacted in layers (or lean mix concrete surround if poor soil conditions).12. Chamber frame and cover to be bedded with haunching mix (wet) or epoxy resin if required.


[email protected]

Virgin Media approved and supplied concrete inset chamber lid to B125 for either FW1 or FW2 assembly. Cubis recommends the use of the Riser Frame unit with

this assembly.

For the Monobox assembly, all core cuts must be at least 50mm from the base of the unit to maintain structural integrity.

50 Min. Duct core hole spacing should be no more than 50% of the largest duct size i.e. 50mm

for a 100mm duct utilised.

Maximum duct arrangement of 2W per face in no more than 2 faces per box. The FW2 size chamber is only

designed for turning cables and should more than one direction be

required then at least an FW3 or FW4 chamber should be utilised.

1037

50-100

Bedding and Haunching Mix

Base Course

Wearing Course

Type 1 or lean mix concrete

backfill in layers.

Duct ends to be finished no more than 50mm inside chamber

Duct entry holes in Monobox assemblies must be core drilled. Cubis recommend a

Bi-Metal hole saw be used with a slow speed high torque drill.

Please Note – Ducts should never enter through the bottom lip of the chamber as structural integrity will be comprimised.

Float finished concrete floor at base of chamber.

Monobox Chamber Dimensions

FW1 – 559 x 317 x 433 Inside, 832 x 592 x 433 OutsideFW2 – 741 x 411 x 503 Inside, 1037 x 707 x 503 Outside707

503

Riser frame is suggested for use with this chamber

assembly.

FW2 Monobox

FW2 Monobox




Modula© Chamber Assembly


VMTD0005

1. All dimensions in millimetres unless otherwise stated.2. Reinstatement to comply with the requirements of the NRSWA (subject to category).3. All duct ends to be finished with a bell mouth where possible or finished 50mm from edge of interior wall.4. All materials and workmanship to be in accordance with the specification.5. Virgin Media supplied Cubis Footway covers and frames are class B125 to BSEN124 and Saint Gobain carriageway are class D400.6. Concrete base (for carriageway chambers) and surround to be low water/cement ratio(low slump) Grade C40/20 for non aggressive soil conditions, for other soil conditions see Eurocode 2 part 1 sections 3 and 6 recommendations and obtain Virgin Media Delivery Engineers approval prior to construction. The mix design shall take full account of ground sulphate content conditions and comply with table 6.1 of Eurocode 2.7. Concrete base slab to be placed, tamped and surface finished. Cubis chamber rings to be installed and levelled to suit.8. Duct entries vary in number, grouping and orientation. Duct entry positions should be agreed with the Virgin Media Build Engineer prior to construction..9. Draw lines shall be secured inside chambers by tying off to a suitable fixture or by tying to an approved batten.10. Standard backfill requirements for an FW3 chamber shall be type 1 in all circumstances unless further support is required then concrete backfill is recommended. CW1 standard backfill shall be a concrete surround when used in a D400 category situation.11. For full build guidelines please refer to the Cubis Installation guide found on their website.


[email protected]

For the Modula assembly, all core locations must be located in the centre of any given ring to maintain structural integrity

of the frame.

Virgin Media approved and supplied chamber lid to

B125 for Footway applications and D400 for carriageway applications.

FW3 Assembly

Sump to be located off centre with fall to grating

in base of chamber

Modula Chamber Dimensions

FW3 – 750 x 600 x 600 Inside, 844 x 694 x 676 OutsideCW1 – 600 x 600 x 900 Inside, 694 x 694 x 940 Outside


Sump


Base Course

Wearing Course

694

694

Duct entry holes in Modula assemblies must be core drilled. Cubis recommend a Bi-Metal hole saw be used with a slow

speed high torque drill.

Please Note – Ducts should never enter through the bottom section or the top 2 sections without prior approval

from your Virgin Media site contact.

Ducts must not enter within 50mm of a corner

section.

50 min.

844

694

940CW1 Assembly

100 Min.

101


Base Course

Wearing Course

FW3 Assembly

CW1 Assembly

200 Min.

676

FW3 Assembly

Type 1 Backfill

200mm concrete surround (minimum)

50 min.




Fortress© Chamber Assembly


VMTD0006

1. All dimensions in millimetres unless otherwise stated.2. Reinstatement to comply with the requirements of the NRSWA (subject to category).3. All duct ends to be finished with a bell mouth where possible or finished 50mm from edge of interior wall.4. All materials and workmanship to be in accordance with the specification.5. Virgin Media supplied Cubis Footway covers and frames are class B125 to BSEN124 and Saint Gobain carriageway are class D400.6. Concrete base and surround to be low water/cement ratio(low slump) Grade C40/20 for non aggressive soil conditions, for other soil conditions see Eurocode 2 part 1 sections 3 and 6 recommendations and obtain Virgin Media Delivery Engineers approval prior to construction. The mix design shall take full account of ground sulphate content conditions and comply with table 6.1 of Eurocode 2.7. Concrete base slab to be placed, tamped and surface finished. Cubis chamber rings to be installed and levelled to suit. 8. Duct entries vary in number, grouping and orientation. Duct entry positions should be agreed with the Virgin Media Build Engineer prior to construction..9. Draw lines shall be secured inside chambers by tying off to a suitable fixture or by tying to an approved batten.10. Standard backfill requirements shall be type 1 in all circumstances unless further support is required then concrete backfill is recommended. For CW class chambers in a D400 category setting then concrete backfill is required.11. For full build guidelines please refer to the Cubis Installation guide found on their website.


[email protected]

For the Fortress assembly, all core locations must be

located as close to the centre of any given ring to

maintain structural integrity of the frame.

Virgin Media approved and supplied chamber lid to B125 for Footway applications and D400

for carriageway applications.

FW4 Assembly

Fortress Chamber Dimensions

FW4 – 915 x 445 x 672 Inside, 1023 x 575 x 672 Outside


Sump


Base Course

Wearing Course

672

1023

Please Note - Duct entry holes in Fortress assemblies must be core

drilled. Cubis recommend a Bi-Metal hole saw be used with a slow speed

high torque drill.

Ducts must not enter within 50mm of a corner section.

575

50 min.

575Sump

Maximum duct arrangement of 4w per wall in this assembly, any greater number of ducts will require a larger chamber.

Type 1 Backfill to suit surrounding environment

100 Min.




Ultima© Chamber Assembly


VMTD0007

1. All dimensions in millimetres unless otherwise stated.2. Reinstatement to comply with the requirements of the NRSWA (subject to category).3. All duct ends to be finished with a bell mouth where possible or finished 50mm from edge of interior wall.4. All materials and workmanship to be in accordance with the specification.5. Virgin Media supplied Cubis Footway covers and frames are class B125 to BSEN124 and Saint Gobain carriageway are class D400.6. Concrete base and surround to be low water/cement ratio(low slump) Grade C40/20 for non aggressive soil conditions, for other soil conditions see Eurocode 2 part 1 sections 3 and 6 recommendations and obtain Virgin Media Delivery Engineers approval prior to construction. The mix design shall take full account of ground sulphate content conditions and comply with table 6.1 of Eurocode 2.7. Concrete base slab to be placed, tamped and surface finished. Cubis chamber rings to be installed and levelled to suit. 8. Duct entries vary in number, grouping and orientation. Duct entry positions should be agreed with the Virgin Media Build Engineer prior to construction..9. Draw lines shall be secured inside chambers by tying off to a suitable fixture or by tying to an approved batten.10. Standard backfill requirements shall be type 1 in all circumstances unless further support is required then concrete backfill is recommended. For CW class chambers in a D400 category setting then concrete backfill is required.11. For full build guidelines please refer to the Cubis Installation guide found on their website.


[email protected]

For the Ultima assembly, all core locations must be located as close to the centre of any given ring to maintain structural integrity of the frame.

Virgin Media approved and supplied chamber lid to

B125 for Footway applications and D400 for carriageway applications.

FW6 Assembly

Ultima Chamber Dimensions

FW6 – 1310 x 610 x 806 Inside, 1408 x 708 x 806 OutsideFW10 - 2320 x 740 x 812 Inside, 2446 x 866 x 812 OutsideCW2 – 1200 x 675 x 900 Inside, 1326 x 801 x 900 OutsideCW3 – 1800 x 675 x 910 Inside, 1926 x 801 x 910 Outside



Base Course

Wearing Course

1310-2320

Please Note - Duct entry holes in Ultima assemblies must be core drilled. Cubis recommend a Bi-Metal hole saw be used with a slow speed high torque drill.

Ducts must not enter within 50mm of a corner section.

50 min.

Sump

FW6 Assembly

900-910

1310-2320

806-910

100 Min.

FW6/10 Assembly

CW2/3 Assembly

610-740

200 Min.

1200-1800

Sump




Brick Built Chambers


VMTD0002

1. All dimensions in millimetres unless otherwise stated.2. All concrete to be BS8110 (EN1992) grade C20/40.3. Concrete to be fully compacted.4. Trim ducts flush with inside face of wall.5. Cover and frame approved for B125 duty in Footway Scenarios and D400 in Carriageway.6. Frame to have bolting lugs and be bolted down on bedding with cover in place, to ensure there is no rocking.7. Capped lead outs to be provided as directed by the Virgin Media Delivery Engineer.8. Chamber depth to be increased with 450 cover at road crossings and decreased for 1 no. duct layer.9. Bricks to be class B Engineering bricks to BSEN771-1.10. Chamber for 2 no. to 4 no. ducts in any direction and for 1 no. duct layer on straight through main cable route.


[email protected]

IsometricPlan ViewB

A

B

A

Section B:B Section A:A225 Double Skin, 102.5 Single Skin

100 Min for all chamber

sizes

1500mm uPVC drain pipe and socket plug

to BS4660 for all chamber sizes.

Minimum depth 25mm cement sand screed

(1:3) with fall to grating.

Optional 50mm thick sand binding

254x254mm Galvanised Steel sump

grating.

Epoxy Resin or Haunching Mix (set 20mm Min) below

finished level for all chamber sizes

Galvanised step irons to be fitted in all footway boxes deeper than 700mm. Position on the end remote from any side entry duct or as directed by the Virgin Media Delivery Engineer, and

away from the sump.

Sump

Wall openings to be arranged on site and confirmed by the Virgin

Media Engineer.Virgin Media approved and supplied concrete inset chamber lid and

frame.

150mm Concrete base. Grade C20/40 with A393

mesh.Class 1 mortar to be used in English or

running bond for both single and double skin

builds.

250 Min for all

chamber sizes

25mm Duct separation

on all faces.

Opening to suit chamber size (see list)

225 Double Skin, 102.5 Single Skin

Depth to suit chamber size (see table)

Opening to suit chamber size (see list)

Chamber Openings and Build Types

FW2 – 730 x 460 x 465 - Single SkinFW3 – 750 x 600 x 600 - Single SkinFW4 – 915 x 445 x 600 - Single Skin

FW6 – 1310 x 610 x 750 - Single SkinFW10 – 2320 x 740 x 750 - Double Skin

CW1 – 600 x 600 x 900 - Double SkinCW2 – 1200 x 675 x 900 - Double SkinCW3 – 1800 x 675 x 900 - Double Skin




Concrete Preformed Chamber


VMTD0003

1. All dimensions in millimetres unless otherwise stated.2. Reinstatement to comply with the requirements of the NRSWA (subject to category).3. All covers shall have an approved BS standard kite mark to the approval of the Virgin Media Delivery Engineer.4. All duct ends to be flush with brick/concrete work and in line.5. All materials and workmanship to be in accordance with specification.6. All concrete to be in accordance with BS8110 (EN1992). Reinforced concrete to be minimum grade C40 and subject to the minimum requirements of BS8110 (EN1992). Concrete mix to chambers to be C32/40 with S.R.C used only as directed by the Virgin Media Delivery Engineer.7. Carriageway frames and covers to be class D400 to BSEN124.


[email protected]

Isometric

Plan View (Ducts Omitted for Clarity)

B

A

B

A

Section A:ASection B:B

Opening to suit chamber size (see table)

Wall size to suit

chamber

100 Min in all chamber sizes

Duct separation to be 25mm laterally

and vertically.Ends of ducts in walls of in-situ chambers to be

set flush with inside face of walls.

1500mm uPVC drain pipe and socket plug

to BS4660.

Minimum depth 25mm cement sand screed

(1:3) with fall to grating.Optional 50mm

thick sand binding

254x254mm Galvanised Steel

sump grating.

Epoxy Resin (set 20mm Min) below finished level.

Galvanised step irons to be fitted in all carriageway chambers, position on the end remote from any side entry duct or as directed by the Virgin Media Delivery Engineer,

and away from the sump.

Sump

Wall openings to be formed to suit duct entries. Voids to be sealed and surfaces

made good with class 1 mortar.

Ductile iron frame and cover approved and

supplied by Virgin Media.

For full details of steel reinforcement please refer

to document VMTD0010

Cast in-situ concrete chambers to be constructed

of class C32/40 concrete.

Opening to suit chamber size (see table)

Depth to suit chamber size

(see table)

Chamber Openings and Build Restrictions

CW1 - 600 x 600 x 900, 225 wall depthCW2 - 1200 x 675 x 900, 300 wall depthCW3 - 1800 x 675 x 900, 300 wall depth

For full specifications of re-bar formation, please refer to document VMTD0010.It is recommended that concrete mass chambers would not be used in a footway or class B environment so this guide only refers to carriageway designated chambers in

a class D environment. If further support is required for footway chambers then a concrete mass surround instead of type 1 or 2 backfill would be preferential to a

concrete footway chamber.




Footway Chamber Reinforcement


VMTD0009

1. All dimensions in millimetres unless otherwise stated.2. All reinforcement to be T10 bars at 175mm centres except for T25 bars for anchor irons.3. Covers to Reinforcement to be minimum 35mm.4. Lap length to be 40ø (all bars).5. All Reinforcement to be high yield (fy=460) deformed type 2.6. All Reinforcement to be T10 bars cut and bent in accordance with BS8666.7. Sump is to be displaced locally to suit Reinforcement.8. Reinforcement may be displaced to sit between ducts if ducts are cast into wall.9. T12 bars are to be placed on each face at 175mm centres over duct openings to suit.10. Step irons and anchor irons (bar marks 06 and 13 respectively) not shown for clarity.


[email protected]


B

B

A

Bar Schedule FW6

A

Section B:B Section A:A

01

Bar MarkType &

Size

No. Of

Members

Bars in Each

Member

Length of

Each Bar

Shape

Code

01 T10 1 25 725 20

02 T10 1 16 900 20

03 T10 1 5 1550 20

04 Step Irons 2

05 T10 1 8 1550 20

06 T25 1 4 500 20

Bar MarkType &

Size

No. Of

Members

Bars in Each

Member

Length of

Each Bar

Shape

Code

01 T10 1 35 725 20

02 T10 1 20 925 20

03 T10 1 5 2500 20

04 Step Irons 2

05 T10 1 8 2500 20

06 T25 1 4 500 20

Bar Schedule FW10

01

01

01

02

05

05

T10-03-175-Top

T10-02-175-Top

Example 40ø Contact Lap Splice




Carriageway Chamber Reinforcement


VMTD0010


[email protected]


B

B

A

T10-11-175 Link

Diagonal Steel bars at all cast outs (bar mark 14).

Bar MarkType &

Size

No. Of

Members

Bars in

Each

Member

Length of

Each Bar

Shape

CodeA* mm B* mm C* mm D* mm E/R* mm

01 T12 1 24 1375 37 925 480

02 T12 1 4 3800 38 900 2050 900

03 T12 1 6 3200 55 480 145 2050 145 500

04 T12 1 2 2050 20 2050

05 T12 1 2 1125 79 200 200

06 Step Irons 2

07 T12 1 24 1150 38 520 155 520

08 T12 1 8 2750 38 880 1050 880

09 T12 1 4 1050 20 1050

10 T12 1 12 2175 55 480 130 1050 130 500

11 T10 1 24 2000 82 705 130

12 T10 1 24 950 82 190 130

13 T25 1 4 500 20 500

14 T12 1 8 900 20 900

Bar Schedule

A

Section B:B Section A:A

T12-08-175 B

T12-03-175 T

T12-10-175 B

T10-12-175 Link

1. All dimensions in millimetres unless otherwise stated.2. All reinforcement to be T10 bars at 175mm centres except for T25 bars for anchor irons.3. Covers to Reinforcement to be minimum 35mm.4. Lap length to be 40ø (all bars).5. All Reinforcement to be high yield (fy=460) deformed type 2.6. All Reinforcement to be T10 bars cut and bent in accordance with BS8666.7. Sump is to be displaced locally to suit Reinforcement.8. Reinforcement may be displaced to sit between ducts if ducts are cast into wall.9. T12 bars are to be placed on each face at 175mm centres over duct openings to suit.10. Step irons and anchor irons (bar marks 06 and 13 respectively) not shown for clarity.





Re-Bar Shape Codes


VMTD0012


[email protected]

Shape Code 55

1. All dimensions in millimetres unless otherwise stated.2. All reinforcement to be T10 bars at 175mm centres except for T25 bars for anchor irons.3. Covers to Reinforcement to be minimum 35mm.4. Lap length to be 40ø (all bars).5. All Reinforcement to be high yield (fy=460) deformed type 2.6. All Reinforcement to be T10 bars cut and bent in accordance with BS8666.7. Any re-bar installation which deviates from the design standards in either VMTD0009 or VMTD0010 must be discussed with the local Virgin Media Delivery Engineer before any work takes place.


Shape Code 20

Shape Code 82

Shape Code 37

Shape Code 38

Shape Code 79

Example 40ø Non Contact Lap Splice




FTTP and HFC Termination Box


VMTD0011b


[email protected]

External Termination Box (ETB) All internal cabling to be coiled

in this assembly.

128mm

250mm

250mm

Pin Kerb

Highway or Footway finished to NRSWA

standards.

96mm Duct and Tee 54mm Duct with a incline toward the footway duct/Tee.

250mm min Cover.

Termination Box to be flush mounted to

exterior wall of property and level with the finished ground.

Core drilled hole between external and internal walls, preferably with a

uPVC duct to finish, minimum 15mm Diameter. Cored

hole should run at a slight downward angle to prevent moisture ingress.

Lean (20:1) Dry Mix Concrete or Type 1 compacted backfill (150

minimum surround to box).

1. All dimensions in Millimetres unless otherwise stated.2. Reinstatement to comply with requirements of the NRSWA (subject to category).3. The installed assembly complies with BSEN124 and should only be installed in line with these guidelines. Any deviation from this install example must be highlighted with the local Virgin Media Delivery Engineer.

Important Note: If internal wiring is complete before external civils infrastructure is deployed the Termination Box (Toby) should be located immediately opposite the Internal Back-box or below the External Termination Box (ETB). If the external civils infrastructure is complete first then consideration must be given to the placement of the Toby compared to the cable input point at the property.

uPVC duct must be cut back before pulling cables externally, this prevents damage to cable while trying to tidy at 2nd fix.

Care must be given to the location of Virgin Media and Openreach ETB s. A distance of at

least 250mm between core locations for external cabling must be provided to allow

adequate space for ETB s to be fitted.

250 Min.

Termination Box to be finished flush to ground level and backed

against the property external wall.

Only the final Tee in a duct route is required to be roped. Roping

every Tee will lead to blockages and should be avoided.

Version 1.3 Updated 03/03/2017



Virgin Media NJUG Requirements


VMTD0017c


[email protected]

450mm

Telecoms Duct (Openreach)

2m Wide Standard Footway

Footway Level

1. All measurements in millimetres unless otherwise stated.2. Utilities measurements are distance from outer footway limit with the carriageway.3. All measurements are minimum depth of cover requirements.4. Duct/cable routes are indicative and drawn on the basis that all utilities lead straight to the property and do not terminate in the footway with Cable TV being the exception.5. Measurements taken from NJUG Guidelines 2014.6. Please refer to VMTD0017d for full details of duct alignment and backfill requirements in a service trench.

LV Cable

Gas Tee from Main

Water Tee from Main

Virgin Media Swept Tee in Footway

LV

Ele

ctr

ic C

ab

les

600mm

HV

and L

V E

lectr

ic C

able

s

250mm

Vir

gin

Med

ia

Ga

s

Wate

r

Te

lecom

s

600mm 900mm 350mm

Carriageway Level

Ou

tsid

e S

top V

alv

eLa

mp S

tand

ard

NJUG Requirements for Utilities Layout in a 2m Footway

Duct must be laid in multiples of 2 with single rows laid centrally along the

uppermost route. Duct Configurations beyond this example must be discussed

with your Virgin Media site representative before deployment.

Tee s must always be installed on the upper most duct and the route closest to the property

being served.

Remember...Footway Cover – 250mm (260mm Scotland)

Carriageway Cover – 450mm




Duct Formation, Capacity and Occupation


VMTD0017a


[email protected]

1. All measurements in millimetres unless otherwise stated.2. The standard minimum distance between ducts and edge of trench wall of

25mm applies.

3. The Virgin Media Delivery Engineer must give approval for all concrete

backfill against structures before construction begins.

4. Ducts marked 1st are the first choice for Multi Pair Copper cable, Coaxial Cables and Fibre Trunk cables. Maximum 7 cables per duct.

5. Ducts marked 2nd are the second choice for Multi Pair Copper cable,

Coaxial Cables and Fibre Trunk cables. Maximum 7 cables per duct.6. Ducts marked Spare are last resort ducts or options for growth.

7. A minimum of 5 cables must be installed in a duct before the adjacent duct may be utilised.

8. Cables of different types in the same chamber shall be coded with coloured

tape (Fibre Optic – Yellow, Coaxial – Blue, Copper – No Tape)

9. Trunk fibre cables appearing in all cabling chambers shall be tagged with

the relevant Trunk Fibre Cable Identification No. using the correct markers/

tags.

10. Draw rope shall be installed in the duct after cabling unless the maximum

number of cables has already been installed.11. Draw rope shall be secured to step irons or cable brackets where fitted in

chambers else tied to other draw rope. Draw rope length in chamber not to

exceed 1m.

Customer Install Duct,

maximum 14 Drop Cables Property Boundary

side of Trench

Multi Ducts only for Fibre

Optic cables only, sequence

of utilisation as numbered.

Spare 1st

Kerb side

of Trench

Customer Swept

Tee Connection

Spare

Spare

Spare

1st

1st

1st

2nd

2nd

2nd




Typical Layout of Ducts in Trenches


VMTD0017d


[email protected]

Formation of footway

or carriageway to

NRSWA Standards

Finished Surface Level

Customer

Installation

Duct

Fibre Optic Warning Tape

(Provided by Virgin Media)

Backfill where necessary to

be Class 1A D.O.T Highway

Specification under

carriageways and arising

under footways

Multi Duct (Indicative)

Duct Bedding

and Surround

25 or 65 in sandy or

rocky conditions

Swept Tee to be

fitted to uppermost

duct route and

closest to the

property.

25 min.

25 min. Increasing to

50mm at Chamber walls.

1. All measurements in millimetres unless otherwise stated.

2. Reinstatement to comply with the requirements of the NRSWA (subject to category)

3. All duct to be Green, supplied and approved by Virgin Media.4. Swept Tee s must always be installed on the uppermost duct line closest to the

property.

5. A minimum clearance of 25mm must be left between all Duct routes and edge of

trench and base of backfill. Any deviation must be approved in advance with the

Virgin Media Delivery Engineer.

Preferred Options for Duct Configuration in

Footway and Highway Situations

All even numbers of duct in the same trench will be laid in pairs

stacked on top of each other, with the exception of some special

engineering difficulties which may require a different duct arrangement

(to be agreed in advance with the Virgin Media Engineer).

Odd number duct configurations will have the single duct laid nearest

the surface equispaced between the two lower ducts.

396

517 517

638 638759759

396

250 Min Cover

of upper duct.

267 146

Measurements relate to standard depths/

widths if trench is made up to the

specification highlighted here with a 25mm

bedding around ducts on all sides.

267267

267 267 267 267

25 Min.




HFC Distribution Cabinets


VMTD0031a


[email protected]

VMDD3/HP3 – 900 W x 940 H x 400 DDistribution Cabinet – 1 per 60 homes max.

VMT1 – 1800 W x 1500 H x 450 DMSAN (Multi Service Access Node) Cabinet – 1 Per 500 homes approx.

VMSD0 – 535 W x 600 H x 250 DDistribution Cabinet – 1 per 30 homes max.

VMDD1/HP1 – 1200 W x 1200 H x 400 DVMDD2/HP2 – 1500 W x 1200 H x 400 D

Distribution and Nodal Cabinets1 per 60 homes max.

VMSD1 – 535 W x 985 H x 315 DDistribution/Amplifier Cabinet

1 per 30 homes max.

1. All measurements in millimetres.2. This guide is representative of the cabinets utilised across the Virgin Media network, the description and number of homes served is indicative only to give an impression of what cabinets to expect based on the size of your site. Full confirmation of the cabinet types and positioning will be agreed at the planning stage.3. All cabinets are supplied with the standard Virgin Media cabinet colour of Goose Grey.4. Please refer to drawing VMTD0034 for obstruction limitations to consider around Virgin Media street cabinets.

Consideration must be given to the proposed location of our street cabinets on your site. For larger sites we may require to deploy

both an MSAN and an HP1 cabinet for both Fibre and Power. We will identify locations of cabinets on our site proposals and discuss all

locations with you and your on site teams before we deploy any cabinets.

1200

VMDD1 Example

VMT1 and VMHP1 Example

4001200

Cabinets are best sited against property gable ends or against retaining or

boundary walls where they are both protected from vehicle damage and as un-

obtrusive as visibly possible to your site.




FTTP Distribution Cabinets


VMTD0031b


[email protected]

VMDD3i – 900 W x 940 H x 400 DDistribution Cabinet

1 per 96 Homes (When used as L4)1 per 1024 Homes (When used as L3)

VMSD1i – 535 W x 985 H x 330 DDistribution Cabinet

1 per 48 Homes (when used as L4)1 per 512 Homes (When used as L3)

1. All measurements in millimetres.2. This guide is representative of the cabinets utilised across the Virgin Media network, the description and number of homes served is indicative only to give an impression of what cabinets to expect based on the size of your site. Full confirmation of the cabinet types and positioning will be agreed at the planning stage.3. All cabinets are supplied with the standard Virgin Media cabinet colour of Goose Grey.4. Please refer to drawing VMTD0034 for obstruction limitations to consider around Virgin Media street cabinets.5. Please refer to VMTD0031a for full details on the other cabinets in the VM range.

VMVH1 – 1800 W x 1700 H x 650 DNodal Cabinet (Virtual Hub)1 per 3000 Homes Approx.




Virgin Media Nodal Cabinet Space Requirements


VMTD0034


[email protected]

Access required to

left front side of

VMT1 power

compartment.

Roof portion of VMT1 cabinet

should not be obstructed. Full

access required for

maintenance and cooling.

Primary doors open outwards and no

obstructions must be placed in the

immediate footprint to the front of any

cabinet within the boundary of the

public footpath.

A minimum of 120mm must be left

between the back of any Virgin

Media cabinet and any new

construction (walls, buildings) post

cabinet construction.

120mm Min

600mm Min

600mm Min

500mm Min

320mm Min

320mm Min

Space between

VMT1 and VMHP1

must be kept free of

obstacles to within

the 120mm minimum

distance to the rear

of the cabinets.

500mm Min




New Build Civils Duct Items


VMTD0043


[email protected]

54/96mm Duct. Available in 3m (54mm) and 4m (96mm) lengths, used in all duct

configurations requiring 96mm duct runs.

54/96mm Slow Bend. Used to ease main ducting around bends and

obstacles. Also used to extend the main 96mm duct towards a building when terminating a Swept Tee in an MDU.

96mm to 54mm Swept Tee. A standard lateral connection size

where 54mm duct will feed a property from a 96mm main line duct.

End Cap. Available in 54mm (Yellow)

and 96mm (Red).

Slip Collar/Coupler. Available for both 96mm and 54mm duct connections, also

available as a 96/54mm reducer.

54/96mm Swept Tee. Used mainly for MDU installation

where larger duct capacity is required.

54/96mm 90° Bend. Used primarily in cabinet root base construction. These bends

should not be utilised for moving duct around obstacles due to the limitation on

cable bending radius. This piece can be used when bringing a duct into an MDU where

trunk cable is used and not drop cable.

Need Duct Items for your site? Contact your local Virgin Media representative to arrange a duct delivery direct to your holding yard. Please allow 7-10 days for delivery so try and give us as much notice as possible.

1. All measurements in millimetres unless otherwise stated.2. This guide is representative of the duct items utilised and provided by Virgin Media. Where the duct supplied does not meet your site requirements or you have special engineering requirements then please liaise with your Virgin Media site contact to discuss any issues.3. All duct is manufactured by Emtelle and provided in Green, this is to differentiate our network from other operators and is part of the NJUG standards set out for utilities colouring and usage. Virgin Media supplied duct is also stamped as property of Virgin Media.4. Do not use our duct to satisfy the build requirements of other operators, you will be asked to remove any duct used for purposes not within our network plan. On the contrary, do not use other operator duct to complete our on site network build either.

Duct54mm – 3m Lengths – VM SKU 1000758696mm – 4m Lengths – VM SKU 10007572

Bends/Collars54mm – 11.25° Bend – VM SKU 1000759054mm – 22.5° Bend – VM SKU 1000758954mm – 45° Bend – VM SKU 1000758854mm – 90° Bend – VM SKU 100758796mm – 11.25° Bend – VM SKU 1000757696mm – 22.5° Bend – VM SKU 1000757596mm - 45° Bend – VM SKU 1000757496mm – 90° Bend – VM SKU 100757354mm – Slip Collar/Coupler – VM SKU 1000759196mm – Slip Collar/Coupler – VM SKU 1000757896mm – Collar/Coupler – VM SKU 1000757796mm – Reducer (96mm to 54mm) – VM SKU 10007581

Split Duct96mm – Duct Inserts (for use with split duct repair kit) – VM SKU 1000758596mm – Duct Repair Kit 3m Length – VM SKU 1000758496mm – Split Swept Tee (96mm to 54mm) – VM SKU 10007580

Swept Tee s54mm to 54mm Swept Tee – VM SKU 1000759296mm to 54mm Swept Tee – VM SKU 1000757996mm to 96mm Swept Tee/Y Branch – VM SKU 10007582Footway Termination Box (New FTTP Version) – VM SKU 10011047Footway Termination Box (When 10011047 cant be used) – VM SKU 1000759454mm Duct Cap – VM SKU 1000759396mm Duct Cap – VM SKU 10007583

MiscellaneousDraw Rope 500m, 6mm Diameter – VM SKU 6020490Fibre Optic Marker Tape 365m – VM SKU 10007596

Marker tape and draw rope supplied by Virgin Media. Please ensure that both are used as

advised by your local Virgin Media site contact.

Termination boxes must be utilised for end of swept Tee routes. Each property must be fitted

with an appropriate box. End of line termination boxes must always be roped back to the nearest

chamber to prove an unblocked route and to ensure cable pulling is made easier.




New Home Pre-Wire to Individual Points


VMTD0044


[email protected]

RG6 Coaxial CableTriple shielded white Coaxial

cable, supplied by Virgin Media.

1 Pair Copper Telephone Cable

Master Phone SocketCopper phone wiring to be terminated

in a backbox and finished with a blanking plate, final phone socket connectivity provided at point of customer install by Virgin Media.

External Termination Box (ETB)All cables terminated back to this

location with 150mm tails and labelled.

Media Plate (Optional)Coaxial and copper cables to be coiled behind lower section of media plate. Lower panel to be reserved for Virgin Media use. Please refer to document

VMTD0048 for more details.

Single Gang Blanking PlateSingle gang flush mounted wall boxes to contain a 150mm Coaxial tail. Euro Module faceplates can

also be utilised for CATV locations if you have

other media considerations in your property.

All cable and single/double gang blanking plates supplied by Virgin Media. A minimum of 2 Coaxial sockets (master bedroom and living room) and 1 Telephone socket per property.

Further sockets can be agreed with local Virgin Media New Build teams. All cabling must be labelled at the termination box to highlight its destination. All CATV and Telco sockets must be installed within 1m of a power outlet. Individual cable lengths should not exceed 15m, please seek advice before wiring if this isn t possible. 150mm minimum tails to be left coiled in each back box. Cables must be separated from low voltage electrical cabling by at least 50mm. Our cable may only be installed

adjacent to LV power cabling where LV cables are installed in a separate conduit or are of a mineral insulation or armoured construction.

For guidance on LSZH cabling please refer to document VMTD0063.

Euro ModulesIf Euro Module faceplates are to be utilised then please consider at least 2 Euro Module slots per room for Virgin Media connectivity. Cables to be

coiled with a 150mm tail and faceplate to be

finished with blanking Euro modules.




New Home Pre-Wire to an Internal Termination Box


VMTD0047


[email protected]

RG6 Coaxial Cable (Recommended)Triple shielded white Coaxial cable, supplied by Virgin Media. RG6 cable used where no phone

socket is required in a room. This method is recommended as cable drum sizes are smaller

and easier to work.

External Termination Box (ETB)Single Siamese drop cable run from Internal Termination Box location

and coiled with a 150mm tail.

Media Plate (Optional)Coaxial and copper cables to be coiled

behind lower section of media plate. Lower panel to be reserved for Virgin Media use. Please refer to document VMTD0048 for

more details.Single Gang Blanking PlateSingle gang flush mounted wall boxes

to contain a 150mm Coaxial tail.

All cable supplied by Virgin Media. A minimum of 2 Coaxial sockets

(master bedroom and living room) per property. Further sockets can be agreed with local Virgin Media New Build teams.

All cabling must be labelled in the ITB to highlight its destination.

All CATV sockets must be installed within 1m of a power outlet.

Individual cable lengths should not exceed 15m, please seek advice before wiring if this isn t possible.

150mm minimum tails to be left coiled in each back box.

Cables must be separated from low voltage electrical cabling by at least 50mm. Our cable may only be installed adjacent to LV power cabling where LV cables are installed in a separate conduit or are of a mineral insulation or armoured construction.


Example Comm s or meter Cupboard

RG6 Siamese Cable (Optional)Triple shielded white Coaxial cable and 1pr Telco

cable, supplied by Virgin Media. We only recommend internal Siamese runs where

additional fixed phone sockets are required.

Extension Phone Socket (Optional)Telco cable from Siamese drop looped into

standalone Telco socket.

Master Phone SocketIncoming Telco from Siamese

terminated in Master socket, any returning telco cables from Internal

Siamese runs connected as extensions

through the Master socket.

Internal Termination Box (ITB)PVC termination box supplied by Virgin Media. All

internal wiring to be terminated back to this location. This must be located next to a dual 13A power socket

to allow mains power for our equipment.

Small (Krone 220A) - 170 x 120 x 80 HWD Medium (Krone 251A) - 210 x 160 x 90 HWD

Large (Krone250/7) - 236 x 176 x 98 HWD




New Build Home – Media Plate Deployment


VMTD0048


[email protected]

The DETA EuroModule compliant face plates are an easy fit option for any new build home. Available in a selection of

finished from White to Satin and Brushed Chrome finishes you will find a version to suit the finish of your new build home.

Virgin Media recommends the use of the DETA 1975 series of lounge plates which incorporate fixed 13A power sockets and

an option for up to 6 module spaces for expansion.

We advise that at least 2 EuroModule sockets are retained for use by Virgin Media in the lower part of the media plate and if

possible reserve the entire lower slot for our use.

RJ45 (Ethernet) EuroModuleIdeal if you are pre-wiring you house with Ethernet sockets

back to a patch panel in a comms or electrical cupboard.

HDMI EuroModuleA pass through face plate allowing you to have a fixed HDMI point, very useful

for prewiring to a wall mounted TV location. If using this module then

please ensure this is used in the upper row of the faceplate.

1pr Telco Cable

RG6 Coaxial Cable (Supplied by

Virgin Media)

This model of media plate allows 3 modules per row, we require at least 2 module spaces in the lower row which

we will supply brush plates for if required.

If you are connecting a phone extension through your media plate then we request you connect this in the lower row as well and punch down to a suitable RJ11

module. The 1pr extension cable should then be run back to the master phone socket location.

We do not authorise the use of Euro Modules as master phone sockets, please check with your Virgin Media

contact to confirm phone wiring options in your development.

HDMI modules are best connected in the upper plate or in a standalone back-box next to your media plate if you are also deploying a dual satellite feed. You might struggle to

fit an HDMI cable plus 2 coaxial feeds in one row.Example EuroModules...

Other TV and Data Cabling

RJ11 (Telephone) EuroModuleThis module allows the connection of a single phone socket as a extension only. We require

you fit a master Telephone socket for us at the main ingress point of the property, next to the BT

socket if applicable. Please discuss your on site Telephone requirements with your Virgin Media Site Engineer before deploying any final wiring.

Satellite/Terrestrial EuroModuleAvailable in varying colours, these 50x50mm module slots allow twin satellite cable connections as well as options for Terrestrial TV and

DAB connectivity from a fixed aerial.

Virgin Media Euro Module with In Line IsolatorOur branded Euro module outlet allows you to have a single fixed master Coaxial socket in a Euro module faceplate without the need for

additional wall-boxes. These units are supplied by Virgin Media, please specify in advance if

you require these.

This is intended as a guide for fitting Euro Module adapters and faceplates. Virgin Media don t supply these consumable items apart

from our own branded Euro Module.




Individual MDU Pre Wire


VMTD0049


[email protected]

RG6 Coaxial CableTriple shielded white Coaxial

cable, supplied by Virgin Media.

1 Pair Copper Telephone Cable

Master Phone Socket1pr cable to be terminated in a flush

mounted back box and finished with a

blanking plate.

Media Plate (Optional)Coaxial and copper cables to be coiled behind

lower section of media plate. Lower panel to be reserved for Virgin Media use. Please refer to

document VMTD0048 for more details.

Single Gang Blanking PlateSingle gang flush mounted wall boxes

to contain a 150mm Coaxial tail.

All cable supplied by Virgin Media. A minimum of 2 Coaxial sockets (master bedroom and living room) and 1 Telephone socket per property. Further

sockets can be agreed with local Virgin Media New Build teams. All cabling must be labelled at the termination box to highlight its destination. All CATV and Telco sockets must be installed within 1m of a power outlet. Individual cable lengths should not exceed 15m, please seek advice before wiring if this isnt possible. 150mm minimum tails to be left coiled in each back box. Cables must be separated from low voltage electrical cabling by at least 50mm. Our cable may only be installed

adjacent to LV power cabling where LV cables are installed in a separate conduit or are of a mineral insulation or armoured construction.


RG6 Siamese CableTwin core Coaxial and 1pr cable from central point in MDU run

back to central distribution point

in building (i.e. Lockbox)

Internal Termination Box (ITB)PVC termination box supplied by Virgin Media. All internal wiring to be terminated back to this location. This must be located next to a dual 13A power socket to allow mains power for our equipment.

Small (Krone 220A) - 170 x 120 x 80 HWD Medium (Krone 251A) - 210 x 160 x 90 HWD

Large (Krone250/7) - 236 x 176 x 98 HWD

Extension Phone Socket (Optional)

Euro ModulesIf Euro Module faceplates are to be utilised then please consider at least 2 Euro Module slots per room for Virgin Media connectivity. Cables to be

coiled with a 150mm tail and faceplate to be

finished with blanking Euro modules.




Large Multi Dwelling Unit Pre Wire


VMTD0051


[email protected]

Wall Mounted Distribution BoxesWe supply a range of powder coated galvanised steel distribution boxes for terminating drop cables in an MDU. Available in three

sizes depending upon the number of units being supplied

Small – 400 x 300 x 210 HWD – 16 UnitsMedium – 700 x 500 x 260 HWD – 32 UnitsLarge – 1000 x 800 x 300 HWD – 64 Units

`

If internal trunk cabling is to be utilised for a larger MDU then a separate grade of cable will be supplied which meets the fire regulations required. This can either be installed by your electricians or our cable teams depending on

what s easier for your site.

Primary Lockbox, either for terminating incoming external cabling or used as a primary connection point for the entire building if capacity suits the size of the cabinet.

The primary distribution cabinet should always be installed directly above or next to the incoming 96mm

duct feed, so there is no more than 3m distance between of external cable run within a building.

Secondary lockboxes, utilised for larger MDU s and spaced every 2-3 floors depending on capacity and

cable lengths. Individual drop cable lengths should not exceed

50m and this should be taken into consideration when planning for

our cable deployment in your building.

Internal RG6 Siamese cabling run from each primary connection point within each unit back to either a primary or

secondary distribution cabinet. Actual cabling termination points to be confirmed on site with the your Virgin Media

representative.

Primary or secondary Distribution box with feed to primary or external cabling

All cable supplied by Virgin Media. A minimum of 2 sockets (master bedroom and

living room) per unit. Further sockets can be agreed with local Virgin Media New Build teams.

All cabling must be labelled in the distribution cabinet to highlight its destination.

All sockets must be installed within 1m of a power outlet.



Cables must be separated from low voltage electrical cabling by at least 50mm. Our coaxial cable may only be installed adjacent to LV power cabling where LV cables are installed in a separate conduit or are of a mineral insulation or armoured construction.


Internal RG6 siamese cabling installed by the developer back to a pre agreed

termination point.




Blown Fibre Overview


VMTD0060


[email protected]

All internal wiring from either an Internal distribution point or in home wiring will be our standard range of blown fibre single micro tubes. With an OD of only 6mm they are easy to

install alongside existing cabling runs.

Our external trunk cabling will be delivered along reinforced blown fibre

micro duct bundles. These cables will be used between our technical sites and all

main fibre cabinets in the field.

Blown fibre tubing from distribution points to Internal MDU boxes will be rated to BS7629 for low smoke fire protection and suitable for internal use within a property. The type and number of blown tubes utilised will

depend upon the requirements of the building and what network architecture is being used.

VMVH1 Cabinet

VMDD3i Cabinet

VMSD1i Cabinet

Internal MDU Box

External/Internal Customer Termination Box

For standard build homes, each property will have a dedicated

blown fibre tube from the nearest serving cabinet directly to the

property ingress point.8mm OD blown fibre tube to ETB.

Please Note - Equipment and tubing images are examples, actual equipment may vary.

To VM Datacentre

Some New Build sites may only use DD3i or SD1i cabinets and not both, the DD3i supports up to 96 customers while the SD1i supports up to 48.

External Termination Box

Mul

ti pa

ir b

low

n fib

re t

ube

for

an

MDU

dep

loym

ent

Sing

le b

low

n fib

re m

icro

duc

t fo

r a s

ingl

e d

wel

ling




New Home Pre-Wire for FTTP


VMTD0050


[email protected]

Siamese Coax and Blown Fibre TubeTriple shielded black Coaxial cable with a siamese 6mm OD 3.5mm ID blown fibre tube, supplied by

Virgin Media. This new type of cable future proofs the property for further developments in Fibre To The Property technologies without the

need for further cabling.

External Termination Box (ETB)Siamese Coax Blown Fibre cable and a single RG59 Coax from Internal HDU

location and coiled with a 150mm tail.

Media Plate (Optional)Coaxial cable and blown fibre tubing to be coiled behind lower section of

media plate. Lower panel to be reserved for Virgin Media use.

Single or Double Gang Euro ModuleSingle or double gang (depending on your

requirements) flush mounted with blanking plates fitted. Internal RG59 and blown fibre tubing to be coiled inside standalone Euro

Module units with a 150mm tail.

All cable and blown fibre tubing supplied by Virgin Media.

A minimum of 2 sockets (master bedroom and living room) per property. Further sockets can be agreed with local Virgin Media New Build teams.

All cabling and tubing must be labelled in the ITB cupboard to highlight its destination.

All sockets must be installed within 1m of a power outlet.



Cables must be separated from low voltage electrical cabling by at least 50mm. Our coaxial cable may only be installed adjacent to LV power cabling where LV cables are installed in a separate conduit or are of a mineral insulation or armoured construction.

For future proofing of your property, we recommend CAT6 cable installation from each point back to the same location as the ITB.

Blown fibre tubing must be installed with no joints to allow future fibre installation. Care must be taken when installing to ensure no kinks or blockages are created.


Example Comm s or meter Cupboard

Internal Termination Box (ITB)PVC termination box supplied by Virgin Media.

All internal wiring to be terminated back to this location. This must be located next to a 13A power socket to allow mains power for

our equipment.

Additional Power!Not just electrical but have you considered

installing additional power sockets in the main hallway and/or upstairs landing?

Single gang sockets at a high level can be utilised for WiFi repeaters which run

through the power cabling in the house.

RG59 Coaxial (For Power Use)RG59 Coaxial +

6mm OD Blowing Tube




FTTP Blown Fibre on a New Build site


VMTD0062


[email protected]

Virgin Media on-site distribution cabinet and associated chamber constructed by our

contractors. We will either tie into the duct you have already laid on site or if we build first then we leave duct poke outs for your

ground-workers to connect to instead.

VMDD3i Cabinet

8mm Outside Diameter Blown fibre micro tube installed by Virgin Media

prior to a customer install.

Footway Chamber

Customers Premise

All on site 96/54mm duct and footway termination boxes installed by your

ground-worker to Virgin Media standards and as per the site design

agreed in advance of the site starting.

Once all PVC duct is installed, Virgin Media will pre pull individual blown fibre micro tubes from the

distribution cabinet to each termination box. Only at the point of customer install will a physical cable

be blown to the customers premise.

The blown fibre tubing pulled to the property will be coiled inside

the footway termination box against the property. When the customer is ready for install, we utilise a coupler and transfer the external blown fibre tube to a

thinner variant to take the blown fibre cable from the footway box to the external termination box (ETB).

Blown Fibre Duct Coupler (Located inside the Footway Termination Box)

All internal wiring completed by your on-site electricians, with cables coiled externally inside a wall mounted termination box (ETB). This box will be the junction between the internal wiring and

the external fibre drop cable.

Footway Termination Box

External Termination Box

For In Home wiring guidance for FTTP, please refer to document VMTD0050.

This guide is designed to show at a high level what the different responsibilities for installing Virgin Media Duct and blown fibre on a New Build site. For developers, this process is quite

similar to how we have asked you install our network for some time, albeit some of the materials such as Termination boxes will look slightly different. For FTTP, pre wiring the home now becomes a more important task and we ask you to consider future proofing your homes

as much as possible. Please refer to VMTD0050 for details on pre wiring.

Please Note – Equipment and tubing images are examples, actual equipment may vary.




LSZH and Fire Stopping Guidelines


VMTD0063


[email protected]

Notes

The clearest use for LSZH cables are confined spaces with large amounts of cabling such as service risers . LSZH cable will only be functional if all cabling in a specific route is LSZH rated. Installation at lower temperatures can be more difficult, the high additive loading in LSZH cabling jackets

reduces flexibility when the cables are cold. This increases the chances of material fracture if care is not given to the install of the cabling. LSZH cabling also has a lower friction coefficient and lubricant will often be required for complicated pulls or anything more than a straight through pull.

If a fire occurs in an open area in which smoke concentration is not sufficient to obscure escape routes , using an LSZH cable may not be beneficial.

LSZH cable is not provided as a standard measure, this must be requested before your project starts. Due to the lead time required from our manufacturer, we cannot supply this at short notice. (9 week lead time from Times Fiber).

All of our coaxial cable is rated to BS-EN 60332-1 (single wire) and BS-EN 60332-3 (bunched wire). For a cable to be classed as LSZH it must also meet the requirements of IEC 60754-1+2 (Test on gases evolved

during combustion of materials from cables) and IEC 61034 (Measurement of smoke density of cables burning under defined conditions) which our product ( SKU 10010319) meets.

LSZH cabling is approximately twice the cost of non LSZH cabling. Depending on the size of your development and the extent of works required, Virgin Media may require payment for LSZH cabling as part of the site agreement. Please discuss your requirements with your local New Build Officer before beginning works .

Working LSZH cabling is inherently difficult due to both the weight and workability of the material . The braiding is stiff and not as flexible as standard RG6 cabling. This makes cable pulling, especially in service risers, difficult without the aid of lubricant. The cable is also twice the weight of triple shielded RG6 cable meaning a single drum weighs in at 42Kg per 300m drum. Please bear this in mind as manual handling will require a 2 man operation as a minimum for pulling this cable.

References

NIST Technical Note 1291 Fire performance of wire and cable (1991) UL 1685 Standard for Safety for Vertical-Tray Fire-Propagation and Smoke-Release Test for Electrical and Optical-Fiber

Cables, Underwriters Laboratory, Northbrook, IL A. Beard, Flame Retardants Frequently Asked Questions, European Flame Retardants Association, Page 15, (2007) HM Government, Fire Safety (Building Regulations 2010), Volumes 1 and 2, 2013.

The requirement for low smoke zero halogen (LSZH) cabling in New Build properties, especially MDU s, has grown over the years with no real guidance

as to the necessity or installation options available. This brief guide is designed to advise of the basic requirements of fire protection of cable

routes and LSZH cable use in your development. Ultimately the decision is down to the developer as to which type of cabling is used, Virgin Media can support whatever your requirement is. Please discuss your needs with your

local Virgin Media contact before proceeding with any work on site.

Products containing halogenated polymers (such as PVC and FEP) are inherently flame resistant. When burned, the materials generate free radicals that slow down the combustion process by reacting with high energy free radicals . One of the products

of this process is halogen acid gas such as hydrochloric acid.The varying types of PVC coating types and their LSZH properties are...

XLP (cross linked polyethylene) <0.02With halogen free flame retardants <0.02With halogenated flame retardants 7-17EPR (Ethelyne propylene rubber) <0.02

With halogenated flame retardants 9-14PU (polyurethane) <0.02

PE (polyethylene) <0.02 – Virgin Media supplied LSZH JacketWith halogen free flame retardants <0.02

CSPE (chlorosulfonated polyethylene) 13-26CPE (chlorinated ployethylene) 14-28

PVC (polyvinyl cholride) 22-29 – Standard Cable JacketFEP (fluorinated ethylene propylene) 62-78

<0.02 generally considered zero halogen

Fire sealing is the most crucial element for protection of cable routes within a

building. All duct routes between floors must be sealed with an adequate fire

sealant such as FireBreak 55.

Duct sealing at a building point of entry remains the responsibility of Virgin Media. We utilise the TDUX inflatable duct seal system from Comtec©

to seal both residential and commercial ducts that terminate inside a building.

Consideration should be given to the type of fire stopping used, if there is a potential to upgrade

cabling in future (i.e. if not deploying Virgin Media or only using single wire CT100 systems) then a reusable fire stopping solution like the

Rockwool® Multi Cable Firestop is recommended alternative to putty/clay based stopping.

NorthRegional New Build ManagerJeff Hogan – [email protected] – 07816 167 052

New Build OfficerScotland East - Alan McLeod – [email protected] – 07985 805 965Scotland West - Paul McLeod – [email protected] – 07890 544 791Northern Ireland – Eileen Dempsey – [email protected] – 07973 935 126North East and Cumbria - Stephen Scott – [email protected] – 07581 195 829North West/Manchester - Gerard Keogh – [email protected] – 07855 806 462North West/Lancashire & Merseyside - Amanda Clare – [email protected] – 07890 534 852Yorkshire - Edwin McLean – [email protected] – 07989 335 827

Central and South WestRegional New Build ManagerAndrew Pritchard – [email protected] – 07771 600 669

New Build OfficerEast Mids - Liam Thompson – [email protected] – 07776 171 553West Mids (Birmingham Central, East and South East) - Rob Searcy – [email protected] – 07792 290 896West Mids (Birmingham North West and Black Country) - Dave Starkey – [email protected] – 07815 060 949South West - Phil Henderson – [email protected] – 07952 230 461Cheltenham/Gloucester and South Wales – Alyn Bevan – [email protected] – 07966 997434East Mids/North - Dan Murray – [email protected] – 07813 920 812East Mids/South - Duane Lewin – [email protected] – 07771 971 177

London, South Central and South EastRegional New Build ManagerAnne Marie Smith – [email protected] – 07966 833 255

New Build OfficerLondon West (National) - Paul Rosi – [email protected] – 07985 807 162London West (Regional) - James Ellery – [email protected] – 07792 180 133London East (National) - Chris Wood – [email protected] – 07890 526 790London East (Regional) – Devon Small – [email protected] – 07811 838 304East Anglia - Steve Hallam – [email protected] – 07816 141 714South Central (National) – Tom Cole – [email protected] – 07966 315 426South Central (Regional) - Tom Grant – [email protected] – 07816 662 132South East (National) - Neville Thorogood – [email protected] – 07985 803 663South East (Regional) - Mark Munday – [email protected] – 07816 141 790Herts/Beds (National) - Alex Bunch – [email protected] – 07580 708 398Herts/Beds (Regional) – Mel Herouvim – [email protected] – 07976 175 108

If you don t have an agreement in place with Virgin Media New Build then please refer to your regional contact.

Business DevelopmentJessica Valentine-Hagart – [email protected] – 07870 380 587Luke Pinder – [email protected] – 07583 685 415

Site ProgressNational New Build Site Progress Manager - Nathan Belfield – [email protected] – 07890 545 079

New Build ContactsHere are all your local New Build contacts, get in touch and we can discuss your site requirements.

If you cannot find a suitable contact then please liaise with our central admin team.

[email protected] – 0800 408 0088

virginmedia.com/developer

Documents

Virgin Media Project Lightning Developers Guide · PDF fileVirgin Media Project Lightning Developers Guide