ESTATES DEPARTMENT UNIVERSITY OF KENT DATA SPECIFICATION

Transcription

1 ESTATES DEPARTMENT UNIVERSITY OF KENT DATA SPECIFICATION Jan 2017 P.S.Czarnomski BSc(Hons)CEng MCIBSE MBIFM Director of Estates The University CANTERBURY Kent CT2 7NN

2 STRUCTURED WIRING SYSTEM CLAUSE DESCRIPTION PAGE No. 4.1 PREAMBLE 4.2 COMMSCOPE OVERVIEW 4.3 STANDARDS 4.4 CABLE TYPES 4.5 TERMINATION OF DATA CABLING 4.6 ROUTING OF CABLES 4.7 CABLE JOINTS 4.8 CABLE PROTECTION 4.9 FLOOR AND CEILING VOIDS 4.10 DATA PATCH PANELS 4.11 DATA OUTLETS 4.12 CABINETS 4.13 TRUNKING,TRAYWORK AND CONDUIT 4.14 EARTHING 4.15 LABELLING 4.16 TESTING 4.17 DOCUMENTATION 4.18 METHOD STATEMENT 4.19 FIBRE INSTALLATION 4.20 DATA INSTALLATION 4.21 DATA CABINET LAYOUT 2

3 4.1 PREAMBLE SECTION 4 This section covers the products and implementation techniques required for a successful installation of the structured wiring system for University of Kent. Media selection is defined by the required service. Category 6 performance cabling is required for all horizontal cabling to work area outlets. Category 6A shielded cabling is required for all WIFI high level outlets. 4.2 CommScope Overview Netconnect (formerly KRONE) is the brand name for the CommScope structured cabling offering, under which come a series of product sets; data, voice, fibre and warranties. Within the warranties section, there is a new warranty, which is specifically for the Horizontal Channel, and within this warranty there are a number of levels depending on the kind of application the end user wants to transmit over it. PLATFORM STANDARD COMMON APPLICATIONS BANDWIDTH Commscope NETCONNECT Cat 6 Commscope NETCONNECT Cat6A Commscope NETCONNECT BS EN Class E BS EN Class EA BS EN Optical Fibre OM3/OM4 Commscope BS EN Optical Fibre OS2 10Base-T 100Base-T 1000Base-T 155 ATM 10Base-FL 100Base-FX 1000Base-SX 10-GBASE-SR 10Base-FL 100Base-FX 1000Base-SX 10-GBASE-SR 10Base-FL 100Base-FX 1000Base-LX/LH 10-GBASE-LX4 10-GBASE-LR 10-GBASE-ER 250MHz 500MHz OM3 / OM4 OS2 All Commscope NETCONNECT (formerly KRONE) Category 6 Data Jacks and Data Accessories products are appropriate for use for the CommScope 25 performance level of warranty. All Commscope Fibre Optic cable shall be OM3 and OS2 performance depending on the application and distance required. 3

4 4.3 STANDARDS Contractors and Sub-Contractors will adhere to the following standards where applicable to the Structured Cabling System:- BS 6701: 2010 Telecommunications equipment and telecommunications cabling. Specification for installation, operation and maintenance BS 7671: AM1 Requirements for electrical installations. IEE Wiring Regulations. Seventeenth edition and Amendment1:2011 EN :2011 Information technology. Generic Cabling Systems EN :2007+A1:2010 Information technology. Generic cabling systems. Office premises EN :2007 +A2:2012 Information technology. Generic cabling systems. Data centres BS EN :2009 A2:2014 Information technology. Cabling installation. Specification and quality assurance BS EN :2009+A2:2014 Information technology. Cabling installation. Installation planning and practices inside buildings BS EN :2013 Installation technology. Cabling installation. Installation planning and practices outside buildings BS EN 50310:2016 Application of equipotential bonding and earthing in buildings with information technology equipment ISO/IEC Information Technology Implementation & Operation of Customer Premises Cabling: Part 1. Administration. Part 2. Planning & Installation. Part 3. Testing of Fibre Cabling. Part 4. Testing of Balanced Copper Cabling in Horizontal Sub- Systems All building work shall be in accordance with the current edition of the Building Regulations, 1985 and amendments thereto. All materials shall be of the respective kinds described in the Specification or, if not defined, shall comply with the appropriate British Standard. Methods of installation shall comply with the appropriate Codes of Practice and all workmanship shall be the normally accepted standard. Contractors should adhere to the following legislation: Control of Pollution Act 1974; the Construction Regulations 1961 and 1966; The Factories Act 1961; The Health and Safety at Work Act 1974 and the COSHH Regulations. 4

5 4.4 CABLE TYPES For installation of the structured cabling system, the following cables will be used, this will be selected to suit the performance level and jacket construction, as specified in the scope of works: - Copper Category 6 4PR LSZH UTP Horizontal Cable Performance exceeding Category 6 specifications up to 250MHz Ensures zero-bit errors, removing the need for Ethernet to re-transmit data packets and ensures data integrity Covered by the Commscope System Warranty Description Colour Part Number Cable Horizontal Category 6 LSZH, UTP 305m WeTote Box, Orange Orange Category 6a 4PR LSZH F/FTP Horizontal Cable Performance exceeding Category 6A specifications up to 500 MHz Ensures zero-bit errors, removing the need for Ethernet to re-transmit data packets and ensures data integrity Covered by the CommScope System Warranty Description Colour Part Number Cable Horizontal Category 6A FFTP LSZH, UTP 500m Reel WHITE

6 Fibre Commscope Fibre Cable 4, 8, 12, 16 or 24 fibre multimode and singlemode distribution cable. Loose Tube, internal/external grade. OM3 Aqua Sheath Colour OS2 Yellow Sheath Colour Covered by the Commscope System Warranty Description Commscope Int/Ext Tight Buffered or Loose Tube Cable Part Number Dependant on core count and fibre performance Fibre Patch Cords The following patch cords, as a minimum, shall be used within the communications room for all connections Fibre LC & SC Duplex Patch cords Designed to provide one-to-one connectivity from end to end. However, ensure that a cross over is provided in the link to guarantee that the equipment transmit to receive paths are maintained. LSOH sheaths listed. Guaranteed insertion loss better than 0.3dB. Covered by the Commscope System Warranty (X) Denotes Length -1 = 1mtr Description Pack Colour Part No. Qty LC to LC Duplex OM3 (PC) 1 Aqua (X) LC to LC Duplex 1m OS2 (PC) 1 Yellow (X) SC to SC Duplex 1m OM3 (PC) 1 Aqua (X) SC to SC Duplex 1m OS2 (PC) 1 Yellow (X) 6

7 Copper Patch Cords The following patch cords, as a minimum, shall be used within the communications room for all connections. Category 6 & Category 6A Slim-Line Patch Cord Guaranteed component performance. Superior cable flexibility from stranded cores. Boot maximises protection during MACs. Colour options aid circuit identification. Maximum density where space is restricted. Covered by the Commscope System Warranty Description Colour Part Number Category 6 Patch Cord UTP LSZH Blue Y X Red Y X Yellow Y X Green Y X Orange Y X Grey Y X Description Colour Part Number Category 6A Patch Cord LSZH White Y X Shielded Blue Y X Red Y X Yellow Y X Green Y X Grey Y X Y- X Length 0-1 1m 0-2 2m 0-3 3m 0-5 5m m 4.5 TERMINATION OF DATA CABLING All terminations will be made using an IDC punch tool fit for purpose. The incoming cables will have all 4-Pairs terminated at both patch panel and outlet in accordance with the TIA/EIA 568B specification: - PAIR RJ45 PIN No. CABLE COLOUR CODE white-blue 4...blue-white white-orange 2...orange-white white-green 6...green- white white-brown 8...brown-white To maintain transmission performance of the cabling system the twists in the cabling must be maintained as close to the point of termination with a maximum untwist of 13mm from the point of termination. The Contractor should also ensure that if introducing twists back into the wiring then only one twist might be performed. All works shall be carried out by a TE Connectivity approved contractor. The stripping of the cable sheath will be limited to the minimum amount required for a successful termination. Contractors shall design the system such that sufficient slack remains to enable re-termination of the outlets a minimum of twice and a limited scope for movement of the cabinets. Coils of excess cables underneath the cabinets are unacceptable. 7

8 4.6 ROUTING OF CABLES Copper data cables will be run internally. All routes and locations will be agreed with the appointed representative from University of Kent prior to installation. All Category 5e Horizontal Cabling will not exceed 90m in length. Ensure that the routes for all cables conform to the minimum segregation from other services as in the aforementioned standards. 4.7 CABLE JOINTS All data cables will be installed with no form of joint on the cable run between the patch panel and the outlet (Consolidation boxes will NOT be accepted). If cables are damaged along the run of cable then they must be removed and replaced with new cable. 4.8 CABLE PROTECTION Cables, which pass through the infrastructure of the building, will be suitably protected against damage. Through walls and floors this will involve an appropriate type of sleeve, through any form of metalwork or stiff plastic then a rubber grommet will be used. 4.9 FLOOR AND CEILING VOIDS The Contractor will be responsible for the removal and reinstatement to the original condition of any tiles and panels required performing the installation PATCH PANELS COPPER PATCH PANELS The installation of the system should be designed utilising the following CommScope NETCONNECT Patch Panel: - High density 19 1U unloaded patch panel to accept 24 STP CAT 6A modular jacks. Integral cable management and covered labelling field. Covered by the CommScope System Warranty Description Colour Part Number Patch Panel, 24 Port 1U, Modular, Unloaded Black PANEL JACKS The installation of the system should be designed utilising the following CommScope NETCONNECT Patch Panel JACKS: - NETCONNECT Category 6 UTP and Category 6A Shielded keystone SL jacks. EN50173 & ISO11801 Component and Permanent Link Compliant performance modular jacks. Covered by the CommScope System Warranty Description Colour Part Number Category 6 UTP SL Jack Black Category 6A Shielded SL AMP-TWIST XGA JACK Metallic

9 FIBRE PATCH PANELS Plastic fibre patch panel for use with standard cabling or blown fibre systems. This light-weight and robust panel has sliding tray for easy access and modular adapter plate configuration. An integral fibre management system removes the need for bunny clips or management stars. Description Pack Qty Colour Part No. 4 port LC duplex patch panel no pigtails MM 1 Grey port LC duplex patch panel no pigtails MM 1 Grey port LC duplex patch panel no pigtails MM 1 Grey port LC duplex patch panel no pigtails MM 1 Grey port LC duplex patch panel no pigtails MM 1 Grey port LC duplex patch panel no pigtails SM 1 Grey port LC duplex patch panel no pigtails SM 1 Grey port LC duplex patch panel no pigtails SM 1 Grey port LC duplex patch panel no pigtails SM 1 Grey port LC duplex patch panel no pigtails SM 1 Grey port SC duplex patch panel no pigtails MM 1 Grey port SC duplex patch panel no pigtails MM 1 Grey port SC duplex patch panel no pigtails MM 1 Grey port SC duplex patch panel no pigtails MM 1 Grey port SC duplex patch panel no pigtails SM 1 Grey port SC duplex patch panel no pigtails SM 1 Grey port SC duplex patch panel no pigtails SM 1 Grey port SC duplex patch panel no pigtails SM 1 Grey

10 4.11 DATA OUTLETS The same manufacturer must make the outlets and Patch Panels. Use as the installation dictates the following outlets jacks OUTLET JACKS NETCONNECT Category 6 UTP and Category 6A Shielded keystone SL jacks. EN50173 & ISO11801 Component and Permanent Link Compliant performance modular jacks. Covered by the CommScope System Warranty Description Colour Part Number Category 6 UTP SL Jack Black Category 6A Shielded SL AMP-TWIST XGA JACK Metallic SL JACK TERMINATION TOOL Termination of CommScope NETCONNECT modular jacks shall be completed using a hand tool which employs a fully repeatable, self centering, non-impact mechanical termination process. This process shall simultaneously cut and terminate all 8 conductors to the modular jack. Terminations must be made using the correct CommScope NETCONNECT termination tool. Covered by the CommScope System Warranty Description Colour Part Number SL Termination Tool Metallic Faceplates and adaptors UK LJ6C style faceplate are supplied unloaded and will accept Cat6 SL UTP and Cat6A SL Shielded jacks. Description Colour Part Number Single port LJ6C unloaded faceplate White Dual port LJ6C unloaded faceplate White Quad port LJ6C unloaded faceplate White Single shuttered LJ6C Angled Adapter White A faceplate housing the required number of outlets and/or blanks, secured to a standard wall mounted backbox or within dado or skirting trunking as specified in the Scope of Works. A mounting plate for floor boxes will be fitted. 10

11 4.12 CABINETS Floor Standing Cabinets A floor standing cabinet with dimensions of 800mm deep by 800mm wide by 42U high may be fitted with a plinth to allow access for the cables. The cabinet should have some provision for ventilation near the top. All cables should enter from the bottom. The cabinet will have hinged doors on the front, back and sides and these will be steel or equivalent (smoked glass / Perspex shall not be used). The cabinet shall be fitted with casters and adjustable feet. The location should be chosen such that access is available to at least the front and the back of the cabinet. Cable tray shall be fitted in floor standing cabinets to lead the cables up to the patch panels. If multiple cabinets are used as a single wiring centre they will be of the type that may be bolted together, side by side and all cage nuts must be fitted to accommodate the 1U equipment. A mains distribution system offering 8 to amp sockets must be provided in each cabinet. This will be by either a horizontal or vertical mounted panel, which will provide easy access for insertion and removal of all plugs without disturbing adjacent plugs. Wall Mounted Cabinets A wall-mounted system will be considered after consultation. A 600 by U cabinet will be considered as the minimum size for these cabinets unless local conditions make this impossible. The cabinet should be of a type allowing access to the rear of the equipment installed (typically by means of a hinged system or removable side panels). The cabinet will be secure, requiring a key for access to the equipment and wiring with-in. and all cage nuts must be fitted to accommodate the 1U equipment. A horizontally mounted mains distribution panel carrying at least 5*13 amp sockets will be provided in the cabinet. Mains Power Supply The cabinet shall have a dedicated mains supply, terminating in an un-switched fused spur. This will be utilised for the power distribution system with-in the cabinet TRUNKING, TRAYWORK AND CONDUIT All cables installed in new trunking and conduit must provide for 50% future expansion, traywork must allow for a 25% growth in cabling. Trunking will not be installed such that the lid of the trunking forms the lower surface. Cables should be enclosed within conduit or trunking where exposed. Each section of metal trunking and traywork will be bonded to the adjoining sections using a suitable earth cable/braid to meet the I.E.E. 17 th Edition regulations. PVC Trunking White PVC trunking will be installed as necessary, as follows: - Where cables are run in decorated areas Where cables require protection in an area Where surfaces are unsuitable for fixings Steel Trunking Steel trunking will be installed where necessary for the installation and the Contractor must ensure that the life expectancy will exceed 15 years in the environment in which it is to be installed. All angles fitted to the trunking will be gusset or radius type enabling the installation of the cables without exceeding the minimum bend radius. 11

12 Traywork Traywork will be installed where necessary for the installation and the Contractor must ensure that the life expectancy will exceed 15 years in the environment in which it is to be installed. All angles fitted to the trunking will be gusset or radius type enabling the installation of cables without exceeding the minimum bend radius. Fixings will be spaced in line with the weight, which it is to support, allowing for future expansion. See also best practice section EARTHING Each cabinet installed will be bonded with every other cabinet using an earth cable in accordance with I.E.E. 17 th Edition regulations. Each cabinet will then be earthed using an earth cable in accordance with I.E.E. 17 th Edition regulations, to a Telecoms Room Bus Bar, which will be earthed using an earth cable in accordance with I.E.E. 17 th Edition regulations to the Main Building Earth (MBE) All copper panels will be earthed at one side using a 2.5mm 2 earth cable. This will connect to the earth point of the cabinet in accordance with BS EN LABELLING All wiring panels on the University network are allocated unique identifiers by the networks group. Cable runs are identified by the cabinet number, wiring panel and port with-in that panel: for example RC1A24 is Rutherford College panel A port 24.The contractor will supply preprinted labels for insertion into the clear windows of the data outlets on request or the numbering system to use. Cabinet numbers to be issued by the University of Kent. Each patch panel and outlet will be labelled with laser printed labels, which will be fitted behind the label holder windows. Hand-written or dymo labels are unacceptable TESTING After the installation is complete within a communications room all cables will be tested as follows: - Testing will be performed using a recognised Level III, or higher, Cable Scanner. The scanner will have to be in good working order, with the latest software update and will be calibrated in keeping with the manufacturers guidelines, with a copy of the certificate provided in the documentation. The installed cable shall be tested using an approved tester complete with Permanent Link adapters. Category 6 Cabling A full test to BS EN Class E Permanent Link shall be carried out. All parameters of the test shall be included. The results shall be stored on the tester and shall include the graphical plot data. Category 6A Cabling A full test to BS EN Class EA Permanent Link shall be carried out. All parameters of the test shall be included. The results shall be stored on the tester and shall include the graphical plot data. Fibre Cabling Fibre Optic tests will be conducted in accordance with the manufacturers warranty requirements and ISO/IEC

13 4.16 TESTING cont. NEXT, Remote Wire Map Characteristic Impedance Length DC Loop Resistance Propagation Delay Return Loss (RL), Remote Delay Skew Attenuation Attenuation-to-Crosstalk Ratio (ACR), Remote Power Sum ACR, Remote ELFEXT, Remote Power Sum ELFEXT, Remote Power Sum NEXT, Remote However the Scanner will be set to test everything possible, ensuring that the main tests are set in accordance with the Permanent Link criteria and not the Channel specifications DOCUMENTATION The contractor will on completion of the works, prior to acceptance by University of Kent submits 2 copies of the following: - Descriptions of the installed cabling system components Description of termination practices and labelling scheme Users guide for active and passive elements of the system Logical schematics of the installation Guide to understanding the results Structured Cabling Test Results - Summary Sheet Structured Cabling Results - Full Test Records Floor Plans including Cable Routes and Outlet Locations Certification of Compliance to BS6701 Parts 1 & 2 25 year Warranty Commscope manufacturer s warranty. Note: this can only be offered by accredited Commscope installation partners. Any documentation over and above or enhanced than that mentioned here should be detailed clearly in the tender response METHOD STATEMENT The Data Contractor is required to produce a method statement and preliminary risk assessment at tender stage, demonstrating that all safety issues have been considered for the University s students and staff as well as the contractor s operatives. Non compliance of this requirement may render the tender invalid. This must be signed off by the University of Kent services engineer prior to any works being carried out associated with the data installation. 13

14 4.19 FIBRE INSTALLATION All proposed fibre cable and connectivity shall be TE Connectivity and approved by the Contract Administrator prior to installation. All fibres shall be terminated with pre-polished LightCrimp Plus technology presenting in LC connectors for Multimode and SC connectors for Singlemode. Pigtails are NOT accepted. All fibres shall be tested in accordance with the manufacturer s terms and conditions and covered by the TE25 system performance warranty DATA INSTALLATION All works shall be carried out by a COMMSCOPE approved contractor DATA CABINET LAYOUT FIBRE PATCH PANEL Cat 6 24 PORT PATCH PANEL 48 WAY SWITCH Cat PORT PORT PATCH PANEL PANEL Cat 6 24 PORT PATCH PANEL 48 WAY SWITCH Cat 6A 24 PORT PATCH PANEL All communications ducts must be installed as per the Builders Guide to telecommunications infrastructure and installation as per BT Openreach document. END OF SECTION IV 14

15 Containment Design Best Practice This document sets out to define the internal design requirements for data and telecom cable containment. The document is intended for use by installation and project teams and can be referenced in specifications and design briefs. It is the responsibility of the Main Contractor (project coordinator or project manager) to ensure that this best practice is followed and that all installations meet the minimum requirements of EN 50174:2 and EN 50173:3. Document History Author Karl Tryner Approved Version Date First Published: 1.0 Issue 07 April

16 Introduction This document sets out the design and installation requirements for containment reserved for copper and fibre cables. Correct installation procedures shall be adhered to, failure to do so will invalidate the manufacturer s warranty. Any variation to the requirements of this document shall be approved by the Client. Contents Section Title 1 General rules for containment 2 Trunking 3 False floor 4 Suspended ceiling 5 Vertical riser 16

17 1. General Rules for Containment 1. Cables shall not exceed 150mm in depth. If this cannot be achieved then special dispensation shall be sought from The Client. If The Client agree that the cable depth can be increased above 150mm then 8mm fire retardant (LPS1207) flooring sheets shall be installed in the bottom of the cable basket 2. Shall not be shared with other services i.e. mains, fire detection, BMS etc. 3. Shall not be used as a support for other systems i.e. strapping cables to outside of the containment, structural support for lighting pendants etc. 4. Data/telecom cables shall not be supported by any other Mechanical and Electrical fittings/supports. It is not acceptable to strap cables to HVAC ducting, BMS, cables, ceiling tile supports etc. 5. Cables shall not be stacked above the height of the cable basket side walls i.e. if the cable basket has side walls of 100mm then the cable depth shall not exceed 100mm. This also applies where the depth of cables has been increased above 150mm at the agreement of The Client. 6. All cable baskets and metal trunking shall be earth bonded in accordance with BS There shall be no discontinuation between sections of cable basket or trunking 8. All cable baskets and trunking shall be jointed together with the manufacturers fixings 9. All sections of containment, bends, joints, clamps, bonding etc. shall be from a single Manufacturer. It is not acceptable to mix and match containment products from different Manufacturers 10. Cable baskets and trunking shall have manufactured bends it is not acceptable to change direction by butting together two sections with no manufactured bend Cable basket external and internal bends shall be 200mm radius Cable basket right angle bends shall be 200mm radius 11. Cables entering a riser at low level shall immediately enter a wall mounted cable basket riser 12. Where cables penetrate walls or fire barriers the containment shall penetrate completely through 13. Fire barriers shall be sealed to the fire rating of the penetrated barrier 14. Where cable baskets cross power cables they shall be bridged at Where there are multiple tiers of cable basket/trays the most accessible position shall be reserved for data cable basket 16. Cable basket shall be marked with colour coded labels as reserved for data cabling only at 500mm centres 17. Tight/unnecessary bends in trunking/tray/basket shall be avoided. 17

18 18. Minimum cable bend radius to be adhered to at all times 19. Draw wires to be installed in all empty conduits. 20. Changes in cable containment i.e. basket to riser ladder, basket to conduit or copex etc. shall be within 150mm of each other 21. Changes in cable containment from vertical to horizontal and vice versa shall be within 150mm of each other 22. Cable baskets shall not be installed upside down 23. Cable baskets can be mounted with the base of the basket against walls but only where they form a riser i.e. vertically 24. Cable baskets mounted on walls in a horizontal aspect shall be mounted on cantilever wall brackets that keeps the base of the basket at 90 0 to the wall 25. Ensure that all containment meets the electrical separation distances specified within EN Trunking 1. Trunking may share services but it shall be multi compartment and the data/telecom cables shall not share services within their compartment 2. Dado level trunking system linking to the horizontal basket tray distribution shall only be accomplished by a vertical section of trunking from the dado section to the suspended ceiling/floor void 3. Each room shall have its own vertical section of trunking 4. Trunking shall not be fed by conduit drops 5. Trunking shall not be fed through the walls from adjoining rooms 6. Only metallic Trunking shall be used in ceiling voids 7. Where metallic trunking is used in ceiling voids is shall be installed on metallic cantilever wall or trapeze brackets 8. Trunking shall not be screwed to ceiling slab 9. Only metallic trunking shall be used in escape routes 18

19 3. False Floor 1. The minimum height from the top of a cable bundle to the underside of the false floor shall not be less than 50mm. 2. Where cable basket is used it shall be supported by 41mm Unistrut bars 3. Unistrut bar to extend a minimum of 50mm the width of the cable basket at each side 4. All cable containment shall be installed such that it facilitates the installation of all cables at the time of the main installation and at any future point. e.g. Tight/unnecessary bends in trunking/tray/basket shall be avoided. Minimum cable bend radius to be adhered to at all times Draw wires to be installed in all empty conduits. Where cables are installed within suspended floors the containment shall be accessible along the entirety of its length Cable baskets/trays or other services shall not be installed over the data containment. If there is a tiered basket system then the data basket shall be in the top most position 50mm 150mm 41mm Figure 1 Suspended floor cable tray 19

20 4. Suspended Ceiling 1. All cables to be installed at high level on suspended cable basket cable tray is not acceptable 2. High level cable basket to be suspended at a height of 200mm below all points of the ceiling slab 3. High level cable basket to be suspended at a height of 75mm above all points of the suspended ceiling 4. Unistrut bar to extend a minimum of 50mm the width of the cable basket at each side 5. Basket to be supported by trapezes constructed from a Unistrut bar and two off galvanised steel M10 threaded rods. It is important to note that once the cable basket enters a telecom room the threaded rods shall be A2 stainless steel 6. Threaded rods to be secured to the ceiling slab and shall be capable of holding the maximum number of cables plus a safety margin of 100% 7. Lighting and sprinkler systems shall not be impeded by basket work 8. Cable basket shall be installed such that cables can be placed onto the tray, not clipped to the underside. 9. At a minimum of every 6m along the length of the containment run a person shall be able to gain access to the containment 10. At every change in direction of the containment run a person shall be able to gain access to the containment 11. At every change in height of the containment run a person shall be able to gain access to the containment 12. Cable basket access hatches shall have a square aperture of 550 x 550mm 13. The containment run shall be in excess of 150mm from other containment and services on at least one side Cable basket shall be used along its entirety for bundle sizes of 7 or more cables. Where the cable basket meets trunking or copex vertical drops they shall be within 150mm of each other Cable bundles of 6 or less cables should be installed in cable basket but may be installed in copex. If copex is used then it shall be: o 32mm in diameter o Finish within 150mm on the trunking/copex vertical drop o Be glanded to the cable basket at the exit point 20

21 o Be glanded to the outlet with proprietary mini trunking clip or copex gland o Total copex run shall be 4m o All ceiling fixing SHALL be metallic and shall be at 1000mm centres. This includes the copex saddle and the screws/bolts/pins 75mm Cable bundle depth 150mm Cable Basket A2 Stainless Steel M10 Rod 75mm Suspended Ceiling 500mm 600mm Unistrut Figure 2 Suspended ceiling cable basket The Unistrut trapeze shall be spaced at a maximum of 1.5m centres. Cable Basket A2 Stainless Steel M10 Rod Suspended Ceiling Unistrut 150mm 1.5m Figure 3 Suspended ceiling cable basket side elevation 5. Vertical Risers 1. Vertical cable basket shall be supported by 41mm Unistrut bars 2. Vertical Unistrut bars to be spaced at 300mm centres 3. Vertical Unistrut bars to extend 50mm either side of the vertical cable basket 21

22 4. Vertical cable basket to step out from wall and finish 150mm off the wall at its lowest point 5. Lowest Unistrut bar to be within 50mm of the cable basket end 6. Vertical cable basket to finish 200mm from floor level 7. Highest Unistrut bar to be within 50mm of radius to horizontal cable basket 8. There shall be a cable basket with a radius of 200mm between the vertical and horizontal cable basket Vertical cable basket must be joined to horizontal cable basket with cable basket that has been cut and bent. The radius must be a minimum of 200mm Unistrut at 300mm Centres Cable basket to step out 100mm from wall to permit a 100mm band radius to horizontal cable entry Figure 4 Low level to high level containment 200mm A2 Stainless Steel M10 Rod Cable bundle depth 150mm Cable Basket Unistrut 41mm 300 to 600mm 500 to 800mm Radius 200mm Unistrut 300mm Unistrut Figure 5 Riser to high level containment side elevation 22

23 Cable Basket A2 Stainless Steel M10 Rod Unistrut 50mm Unistrut 1m 300mm Unistrut 50mm 50mm 1m Figure 6 Riser to high level containment front elevation 23