MCST LIGHTING AND POWER DESIGN AND CONSTRUCTION

Transcription

1 Engineering Standard- Design Structures & Facilities MCST Version: 3 Issued: May 2016 Owner: Chief Engineer Approved By: Phil Ellingworth Chief Engineer PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION

2 Approval Amendment Record Approval Date Version Description Initial Release under MTM. Supersedes the following Standards: 19/02/ /08/ /05/ VRIOGS Lighting and Power Design and Construction Standard, 2. PTC Lighting & Power Design Standards PTC Rail Electrical Infrastructure - Lighting & Power Construction Standard (Issue One), and 4. PTC Earthing of Concrete Poles Policy and Application Guidelines. Updated cross reference to Standard Drawings to correct document numbers. Corporate document number amended from L1-SDD-STD-008 to. Drawing numbers amended to reference correct drawings. Document content not reviewed under this revision. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 1 of 23

3 MCST Table of Contents 1. Purpose Scope Abbreviation Definitions References & Legislations General MTM References Rail Industry References and Legislation Australian References and Legislation International References Related Documents Safety and Environmental General The Protection of Personnel The Protection of Structures Policy Framework Low Voltage Supply to Railway Assets Earthing of Equipment Specific Requirements Free Standing Stations and Platforms Stations and Platforms Integral to a Major Facility Underground Stations and Platforms Earthing of Concrete Poles Provision of RCD General Operational Control Systems Station Building and Car Park Lighting PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 2 of 23

4 MCST Station Lighting and Station Environs Lighting Lighting to Station Offices, Signal Boxes and Staff Areas Lighting and Railway Signals Lighting Control Emergency Lighting Containment of Lighting Maintenance of the Lighting Installation Lighting of Train Stabling Areas Specific Design and Construction Requirements General Main Switches Switchboards and Distribution Boards Circuit Breakers Circuit Protection Circuits and Cables Final Sub-Circuits Emergency Lighting Test Switch External GPO Luminaires, Light Fittings and Pumps Photo Electric Cells Lighting Support Poles Alarms and Indications Underground Stations High Voltage Supply to Railway Assets Appendices PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 3 of 23

5 1. Purpose 1.1 To define the standards required for the lighting and power design and construction for the metropolitan railway facilities. 1.2 This MTM Standard is needed to address the specific conditions applying to the metropolitan railway which is powered by 1500 V DC and to meet MTM contractual obligations to the State. 1.3 The lighting and power electrical installation adjacent to the railway traction system is susceptible to stray currents with the potential for damage to earthing conductors by excessive direct current flows and corrosion through electrolytic action. The design and construction of the lighting and power installation must be such as to protect persons and assets. 1.4 MTM has established a range of electrical equipment under its asset management system which suits its purposes. It is required that only equipment approved by MTM is used in the electrical installations. 2. Scope 2.1 This Standard applies to the design and construction of all new lighting and power electrical installations for the metropolitan railway facilities 2.2 The Standard applies to the design and construction of modifications/upgrades to the lighting and power installations on the metropolitan railway facilities. 2.3 The Standard applies to works on the Infrastructure Lease and to works undertaken on other land which are intended to expand or enhance the provision of passenger services and to form part of the Infrastructure Lease. 3. Abbreviation CER Communication Equipment Rooms GPO General Purpose Outlet as defined in AS/NZS 3000 MEN Multiple Earth Neutral as defined in AS/NZS 3000 MTM Metro Trains Melbourne OCS Operational Control Systems RCD Residual Current Device in accordance with AS/NZS 3190 PE Cell Photo electric cell used to control the switching of lighting SPOT Single Person Operated Train PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 4 of 23

6 4. Definitions Shall Should Infrastructure Lease Is used as the descriptive word to express a requirement that is mandatory to achieve conformance to the standard. Is used as the descriptive word to express a requirement that is recommended in order to achieve compliance to the standard. Should can also be used if a requirement is a design goal but not a mandatory requirement. Is defined as the meaning in the Franchise Agreement. 5. References & Legislations 5.1 General Lighting and power installations shall be designed and constructed in accordance with this Standard Document and relevant MTM Standard Documents and Australian Standards and codes This MTM Standard Supersedes the following Standards: VRIOGS Lighting and Power Design and Construction Standard, PTC Lighting & Power Design Standards PTC Rail Electrical Infrastructure - Lighting & Power Construction Standard (Issue One), and PTC Earthing of Concrete Poles Policy and Application Guidelines Where new materials, equipment or systems are to be introduced with the design and construction of the lighting and power electrical installation, the materials, equipment or systems shall be subject to MTM Type Approval on the metropolitan train network in accordance with L1-CHE-PRO-004 Type Approval Procedure. 5.2 MTM References Document Number MCST MEST L1-CHE-STD-001 L0-SQE-PLA-005 L1-CHE-PRO-004 Title MTM Standard Metropolitan Railway Stations MTM Standard - Train Maintenance Buildings Electrical Systems Earthing and Bonding MTM Requirements Metropolitan Train Stabling Environmental Management Plan Type Approval Procedure PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 5 of 23

7 5.3 Rail Industry References and Legislation Document Number VRIOGS Title Communications Equipment Room Brief 5.4 Australian References and Legislation Document Number AS/NZS 3000 AS/NZS 3190 Title Wiring Rules 2007 Electrical Installations Approval and Test Specification Residual Current Devices AS/NZS Low Voltage Switchgear and Controlgear N/A Electrical Safety (Installations) Regulations 2009 AS/NZS 3760 Electrical Testing and Tagging 5.5 International References Nil 6. Related Documents MCMF Lighting & Power Functional Requirements Form STD_B0104 Standard Drawing - Concrete Pole Earthing Typical Arrangement STD_B0105 STD_B0106 Standard Drawing - Pole Numbering For Station Platform and Car Park Lighting Standard Drawing - Platform Lighting Poles Lettering Details 7. Safety and Environmental 7.1 General Safety and risk assessments shall be undertaken for the electrical installation, addressing all areas of specification, design, construction, operation and maintenance The design, construction and operation of the lighting and power installation shall comply with the MTM Environmental Management Plan. 7.2 The Protection of Personnel Personnel shall not be capable of contacting any object at other than earth potential Failure of any aspect of the lighting and power supply system shall not present a hazard to personnel in the building or surrounds. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 6 of 23

8 7.2.3 To reduce the possible exposure of persons to rail to earth potentials, a distance of at least 2.0 metres shall be maintained between metallic items connected to the low voltage earth and the rails and rolling stock which are at rail potential. 7.3 The Protection of Structures Stray currents from the traction power system may be in the order of several hundred amps with the potential to destroy cables of the lighting and power system. The details of this MTM Standard are to be followed to mitigate against stray direct current flowing in earth and neutral conductors of the lighting and power supply system Wherever practical, the earth stake or mat of the lighting and power supply system shall be constructed remotely to the rail tracks but within the Infrastructure Lease. The earth stake or mat shall be at least 3.0 metres from the nearest running rail Earth mats shall be of copper and welded into a continuous electrical grid Lighting and power circuits and equipment attached to the lighting and power system shall be a minimum of 2.0 metres from rail and structures and fittings of the overhead traction wiring system. Lighting and power cables may be run in conduit below rail tracks in conduit a minimum of 1200 mm below top of rail. 8. Policy Framework 8.1 The lighting and power installation shall comply with AS 3000 Wiring Rules and the requirement of Energy Safe Victoria. 8.2 The lighting and power installation shall comply with this MTM Standard for the protection of the installation from stray currents, compliance with contractual commitments and the use of materials, equipment and systems. 9. Low Voltage Supply to Railway Assets 9.1 Aerial or underground cable supply from an electricity provider shall be installed in accordance with the appropriate standards. 9.2 The low voltage supply will be a single, two or three phase supply as required for the electrical load of the installation with the neutral earthed as part of the multiple earth neutral system. 9.3 A main earth shall be provided within the Infrastructure Lease for the electrical installation of the building or structure, connected to the earth bar and the neutral conductor of the main switch board. 9.4 For the earthing of circuits, sub circuits and electrical apparatus, earth conductors shall be provided between the earth bar at the main switch board and distribution and other switch boards as necessary. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 7 of 23

9 10. Earthing of Equipment Specific Requirements 10.1 Free Standing Stations and Platforms Free standing stations and platforms which are typical of the railway stations in the suburban area shall have the earthing system designed and constructed as follows: The main earth shall be at the incoming supply to the main distribution board for the installation Each circuit from the main distribution board shall be provided with an earth which shall be connected to the distribution boards and electrical equipment in accordance with AS 3000 Wiring Rules Stations with two or more single face platforms shall have the earth conductor from the main distribution board taken to the distribution boards on the other platforms Free standing platform lighting poles are at earth potential as mounted in ground or on structure. The light fittings are to be attached to the poles and earthed by the earth cable from the distribution board An earth connection shall be made to water and gas piping in accordance with AS/NZS 3000 Wiring Rules Under no circumstances are the low voltage lighting and power installation at a station and the structures supporting the overhead wiring to be electrically connected As a general principle, apparatus supplied at low voltage and all low voltage cables shall be separated from overhead wiring support structures with a distance of a minimum of two metres between the low voltage apparatus, any conducting materials supporting the low voltage apparatus and the overhead structures Areas not accessible to the public and where the conductive material connected to the low voltage earth is in close proximity to overhead structures such as applies with overhead structures through station roofing and verandas, the distance between the roofing material and the overhead structure may be reduced to 50mm. The form of construction shall ensure that the roofing material and structure cannot be connected together with a metallic or conductive material Where it is necessary for low voltage apparatus and cables to be in physical contact with overhead wiring support structures, the apparatus and cables shall be insulated to a level of 3000V to protect the low voltage installation in the event of the failure of the traction supply insulation. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 8 of 23

10 10.2 Stations and Platforms Integral to a Major Facility Stations and platforms that are integral to other buildings such as major shopping centres are to have the earthing system designed and constructed as follows: The main earth shall be at the incoming supply to the main distribution board for the installation. The main earth stake or mat shall be remote to the rail tracks. Each circuit from the main distribution board shall be provided with an earth which shall be connected to the distribution boards and electrical equipment in accordance with AS 3000 Wiring Rules Stations with two or more single face platforms shall have the earth conductor from the main distribution board taken to the distribution boards on the other platforms An earth connection is to be made to water and gas piping in accordance with AS 3000 Wiring Rules All of the lighting and power installation is to be isolated from the traction wiring system. Traction overhead wiring masts and structures are not to be used for the support of lighting and power cables or any low voltage apparatus Underground Stations and Platforms The earthing arrangements at underground stations and platforms shall be in accordance with the particular design of the installation. The principles of protection of persons and protection of assets from electrolytic corrosion are to apply. 11. Earthing of Concrete Poles 11.1 Concrete poles shall be earthed 11.2 Concrete poles supporting light fittings in car parks and other areas in the station environs shall be earthed by an underground conductor which is connected to the earth at the distribution board and to the earth stake or mat of the supply The earthing arrangement for concrete poles shall be as per Standard Drawing STD_B Provision of RCD 12.1 General The provision of Residual Current Devices (RCD) is to be in accordance with AS/NZS 3000 Wiring Rules. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 9 of 23

11 12.2 Operational Control Systems RCDs may not be required for essential supplies to Operational Control Systems (OCS). For a particular installation, the circuits not fitted with RCDs are to be clearly identified and specified in the Lighting & Power Functional Requirements Form (MCMF ) For OCS equipment, the OCS racks are to be supplied by circuits not fitted with RCDs. The individual field devices such as passenger information displays, clocks and SPOT Equipment shall be fitted with RCDs For RCDs in Communication Equipment Rooms (CER) refer to VRIOGS Communications Equipment Room Brief Station Building and Car Park Lighting All lighting circuits shall be fitted with RCD. The lighting to station rooms and offices, public areas, pedestrian approaches to stations including over and under passes and car parks shall be supplied from multiple circuits to protect against the loss of a circuit placing the area into darkness To facilitate the routine testing of RCD, lighting circuits are to be fitted with a test point at the switchboard which will enable tests to be performed in accordance with AS/NZS The diversification of supply to each individual area of a station shall comply with the following: a. Each area shall be provided with supplies from a minimum of two circuits b. The loss of a phase or a sub circuit shall not remove all lighting from an area c. Within station rooms and offices and public areas, the loss of a lighting circuit or one phase supplying the lighting circuit or circuits shall not result in the average level of illumination of the area being less than 50 per cent of that level applying with the lighting in a normal condition. d. For pedestrian approaches to stations and station car parks, the loss of a lighting circuit or one phase supplying the lighting circuit or circuits shall not result in the average level of illumination of the area being less than 30 per cent of that level applying with the lighting in a normal condition. e. With the loss of a circuit or a phase, the lighting uniformity shall be not less than 0.3. f. The lighting levels shall be measured within each area to demonstrate compliance with this clause. The lighting level measurements are to be at one metre above the surface. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 10 of 23

12 13. Station Lighting and Station Environs Lighting 13.1 The illumination levels for lighting of the public areas at stations are specified in the Franchise Agreement. The design and construction shall conform to the Franchise Agreement. Refer to Appendix A for lighting requirements New lighting installations shall be white light using Metal Halide fittings. Under verandas fluorescent fittings may be used. The details of the lighting requirements shall be as specified in the Lighting & Power Functional Requirements Form (MCMF ) Free standing poles supporting lights on station platforms and in car parks are labelled for identification and maintenance purposes. Station platform lighting poles are fitted with a unique number and car park lighting poles are fitted with a number and letter. The labelling is to be fitted to the poles at a height of 2.4 metres above ground or platform surface level Station platform lighting pole numbering and car park pole numbering shall conform with Standard Drawings STD_B0105 and STD_B Lighting to Station Offices, Signal Boxes and Staff Areas 14.1 Lighting to station offices, signal boxes, amenities, change rooms and toilets shall be designed and constructed in conformance with Australian Standards The lighting design and construction shall provide for the use of screen based equipment. The locations of the screen based equipment shall be as stated in the Lighting & Power Functional Requirements Form (MCMF ). 15. Lighting and Railway Signals 15.1 Station and station environs lighting shall be designed recognising that the lighting is in a railway environment and the safe working of trains requires signals to be clearly sighted by train drivers Lighting shall not block the view of signals, produce glare or otherwise affect the ready sighting of signals. 16. Lighting Control 16.1 The design and construction of the lighting shall incorporate final circuits that enable switching of the lighting in areas of the station by manual and automatic means. Separate circuits shall be provided for: each platform, waiting rooms, booking lobbies, concourses and toilets offices, amenities and change rooms Footbridges and associated pathways subways and associated pathways car parks station environs security lighting PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 11 of 23

13 16.2 A minimum of two circuits shall be provided for the lighting to each area of the station and environs accessible by the public and railway customers Platform lighting shall be controlled automatically to ensure that lighting is available in accordance with the Franchise Agreement, 30 minutes before and after the operation of scheduled services each day The control shall be a combination of synchronised time clock switches and photo electric cells to ensure that lighting is operational in darkness and energy use is minimised in hours of daylight The lighting to waiting rooms, booking lobbies, concourses and toilets shall be under the control of station staff. At unstaffed stations, the lighting to the concourse and waiting areas is to be controlled by the time clock switches and the photo electric cells The lighting of foot bridges and associated pathways shall be controlled as for the station platforms. Where the foot bridges and associated pathways are accessible to the general public, the control system shall ensure that the lighting is operational during darkness Where subways and associated pathways are illuminated by natural light, the lighting shall be controlled as for station platforms. In locations that natural light is insufficient to provide a safe and open standard of amenity in a subway, lighting shall be provided. Where the subways and associated pathways are accessible to the general public, the control system shall ensure that the lighting is operational during darkness The lighting of car parks shall be controlled as for the station platforms. Foot paths integral to or adjacent to the car parks available to the public shall be illuminated during darkness Lighting in the station environs provided for security purposes shall be operational as given in the Lighting & Power Functional Requirements Form (MCMF ) The detailed and special requirements for lighting to all areas shall be as detailed in the Lighting & Power Functional Requirements Form (MCMF ). 17. Emergency Lighting 17.1 Emergency lighting within the station buildings shall be installed in accordance with the relevant standard Emergency supply may be provided to the station lighting and power installation. Where such a supply is proposed it shall be stated in the Lighting & Power Functional Requirements Form (MCMF ). 18. Containment of Lighting 18.1 External lighting shall be designed and constructed to ensure that the illumination is placed to the specified areas. Spill lighting shall be managed through fitting orientation, shields and the like. Spill lighting shall not be on land outside of the Infrastructure Lease. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 12 of 23

14 19. Maintenance of the Lighting Installation 19.1 All circuits to the exterior to the station building supplying platform, foot bridges, subways, path ways and car park lighting shall be provided with isolating and control switches to facilitate maintenance. The isolating and control switches shall be located within the station building in a secure location. The switches shall be lockable The design and construction shall provide for the maintenance of the low voltage installation including access to all apparatus. The means of accessing luminaires is to be specifically stated with any specialised equipment required for access being detailed The lighting and power installation shall be designed such that maintenance personnel can safely and efficiently perform routine maintenance and fault repairs fully in compliance with the relevant legislation, regulations and codes without disruption to train services and with minimal inconvenience to passengers. 20. Lighting of Train Stabling Areas 20.1 The lighting of train stabling areas shall be in accordance with the MTM Requirements Metropolitan Train Stabling Light fittings should be installed on the structures supporting the traction wiring. The fittings and associated cabling shall be insulated from the structures to an insulation level of 3kV to protect the lighting installation in the event of a traction supply fault energising the structure. Insulation shall be provided by porcelain or similar insulation with proven design for external use As the design requires, additional structures or poles shall be provided for the mounting of the lighting fittings To facilitate the maintenance of the lighting and the traction wiring, the traction wiring sectionalising and the lighting circuit switching shall be coordinated. The circuitry supplying the lights shall be designed and installed such that all the light fittings within a group of 3 sidings shall be capable of isolation as a unit. 21. Specific Design and Construction Requirements 21.1 General MTM has specific requirements for electrical equipment used in lighting and power installations. These requirements are in accordance with AS 3000 Wiring Rules, more stringent that the Wiring Rules or specify specific equipment Main Switches The main switch to an installation shall be presented through the main switch compartment escutcheon door. The door shall be capable of being opened with the power on The main switch shall be capable of being locked in the OFF position. The lock shall be an integral part of the switch design and construction by the OEM. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 13 of 23

15 Where surge arresters are required to be fitted to the incoming cables from the supply company, the main switch and the surge arresters shall be housed in a segregated compartment of the main switch board The requirement for surge arresters shall be as stated in the Lighting & Power Functional Requirements Form (MCMF ) Switchboards and Distribution Boards The terms switchboards and distribution boards are used in this section as having the same meaning Switchboards shall generally not be located in areas accessible to the public. Where it is necessary that a switchboard is located in a public area, the switchboard shall be securely locked. The location of switchboards shall be as stated in the Lighting & Power Functional Requirements Form (MCMF ) Switchboards shall be designed and manufactured from suitable materials appropriate to the location. The exterior materials of out door switchboards and switchboards exposed to moisture shall be stainless steel and with corrosion resistant fittings All switchboards shall be designed and constructed to enable additional circuits to be supplied from the switchboard. The switchboard shall provide for an additional 30% of circuits to be added in the future. Space shall be allowed for future circuit breakers to be installed and neutral and earth bars shall be fitted in the switchboard for the ultimate number of circuits Switchboards, including cable entry points shall be sealed to prevent the entry of dust and moisture. Out door switchboards shall be rated as IP Switchboards and distribution boards at each location shall be labelled with a unique identifier which shall give the point of supply and the phases for the switchboard. The arrangement is described at Appendix B Circuit Breakers Circuit breakers shall comply with AS Main circuit breakers shall have a minimum fault capacity of 10kA or greater as required for the installation All circuit breakers shall have a minimum fault capacity of 10 ka Miniature circuit breakers of Terasaki manufacture shall be used. The circuit breakers shall be utilisation category B Main circuit breakers and circuit breakers supplying distribution boards shall be capable of being locked in the open position The mounting of circuit breakers shall be such as to ensure that the ON/OFF status and the rating of the circuit breakers are clearly visible with covers or escutcheons in place. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 14 of 23

16 21.5 Circuit Protection Circuits shall be protected in accordance with the requirements of AS 3000 Wiring Rules Protection shall be designed to discriminate fault currents and limit the loss of supply to the minimum number of circuits consistent with the protection of the electrical installation Circuits and Cables All circuits shall be labelled with a unique identifier which shall give the switchboard from which it is supplied and the phase(s). The principles are shown at Appendix B Only the use of multi stranded copper cables is permitted. The minimum size cable to be used is 1.5 sq mm The size of cables shall be determined in accordance with AS 3000 Wiring Rules. The design and construction as at the time of installation is to be taken as 70% of the full load on each cable. The cables shall be sized for 100% load Neutral cables shall be of the same cross sectional area as the phase conductors of the circuit Joints in cables are not permitted Cables shall not be direct buried in plaster or concrete. If a cable run is required in plaster or concrete the cable is to be enclosed in conduit Cables in public areas and in areas likely to be subject to vandalism shall be in metal conduit or similar robust protection. Cables and conduits shall not be run on the surfaces of station buildings in sight of rail passengers and the general public Final Sub-Circuits Each sub-circuit shall be uniquely identified and labelled at the switchboard and the GPO, fixed appliance or load The maximum number of GPOs for each sub-circuit shall be 80% of that number permitted in accordance with AS 3000, Wiring Rules Each special purpose outlet whether single or multi-phase and each supply to a fixed appliance shall be on a separate sub-circuit Emergency Lighting Test Switch Test switch(es) shall be provided at each switchboard as necessary to remove the supply from battery powered emergency luminaires to test the operation and battery performance of the devices. The test switch(es) shall automatically revert to normal after a period no greater than 10 minutes. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 15 of 23

17 21.9 External GPO Where an external GPO is required at a station it shall be of Clipsal manufacture, 230V, 10A, flat pin with screwed fitting, part number 56C310. The provision of external GPOs shall be as stated in the Lighting & Power Functional Requirements Form (MCMF ) Luminaires, Light Fittings and Pumps A standard range of luminaires and light fittings has been established by MTM. Details are at Appendix C. Where a device other than the approved standard device is required, the details will be as stated in the Lighting & Power Functional Requirements Form (MCMF ) Luminaires on station platforms including luminaires mounted under verandas shall be a minimum of 2.4 metres from the platform coping (edge) All external luminaires shall be fitted with an inline protection device Photo Electric Cells PE cells installed for the control of lighting circuits shall be located in a secure and accessible location and mounted at a height of not more than 2.4 metres above the surrounding ground or accessible area Lighting Support Poles Lighting support poles within the station environs shall be located to provide the specified lighting level and at a minimum distance of 6.4 metres from all high voltage aerial conductors, including traction supply and overhead conductors Lighting support poles on station platforms with a maximum height above the platform surface of 6.0 metres may be at a distance of less than 6.4 metres from the traction overhead wiring Alarms and Indications Where it is necessary to install pumps for drainage and sewage management, the pumps shall be provided with alarms and indications that provide the status of the devices. Healthy status and fault status shall be indicated Stations fitted with generators for the maintenance of essential electrical supplies shall be provided with alarms and indications including generator operating and failure to start on demand All alarms and indications shall be provided in the station office in ready view of staff. Alarms and indications shall be provided at the devices as required for safe attention to the devices by maintenance personnel Where specified in the Lighting and Power Functional Requirements Form (MCMF ), the controls, alarms and indications shall be connected to and operate with a Metro Trains supervisory control and data acquisition system. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 16 of 23

18 22. Underground Stations 22.1 All electrical work proposed in underground stations shall be specifically detailed in the Lighting & Power Functional Requirements Form (MCMF ) The lighting and power design and construction in underground situations shall be free from combustible insulating materials All materials shall be specifically approved prior to construction in accordance with Type Approval Procedure. 23. High Voltage Supply to Railway Assets 23.1 The supply to lighting and power installations shall normally be at low voltage. Should it be necessary to supply an installation at high voltage, the following shall apply Aerial or underground cable supply from an electricity provider shall be installed in accordance with the appropriate standards with the exception that the earthing of the system shall be as stated following Aerial Supply The aerial supply shall be a three wire supply only without an earth being provided by the electricity provider On the Infrastructure lease, the earth side of the insulators on the mast or supporting structure of the aerial conductors shall be earthed by connection to an earth stake or mat. If an earth mat is required it shall be constructed as a single electrically continuous unit The earth stake or mat shall be the only earth for any system connected to it. The earth stake or mat may be used to earth other high, medium, low and extra low voltage systems If supplies other than the incoming aerial supply are to be earthed to the earth stake or mat, the neutral of the supplies shall be connected to the earth stake or mat Underground Cable Supply The earthing arrangement shall be agreed with the electricity provider and documented in the Lighting & Power Functional Requirements Form (MCMF ) With the electricity provider requiring the cable screen to be earthed at the supply end, the sheath shall be terminated and insulated at the Infrastructure Lease end to prevent contact with earth or other potentials. The insulation level shall be that applicable to the voltage rating of the cable With the electricity provider requiring the cable screen to be isolated at the supply end, the sheath shall be terminated and insulated at the supply end to prevent contact with earth or other potentials. The insulation level shall be that applicable to the voltage rating of the cable. The screen shall be connected to an earth stake or mat constructed on the Infrastructure Lease The earth stake or mat shall be the only earth for any system connected to it. The earth stake or mat may be used to earth other high, medium, low and extra low voltage systems. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 17 of 23

19 24. Appendices Appendix A: Lighting Level Requirements Appendix B: Switchboard and Circuit Identification Appendix C: MTM Standard Luminaires, Light Fittings and Pumps PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 18 of 23

20 Appendix A: Lighting Level Requirements The table below details the lighting level requirements as stated in the Franchise Agreement Train, Schedule 10. Category Required white light lighting (Metal Halide) standard Mean EH (Lux) Required lighting standard for all other existing lighting installed Mean EH (Lux) Uniformity Enclosed Stations Platforms Yellow Line (edge or at coping) Entry Waiting Areas Safety Zone 250 Not applicable 0.7 Toilets Areas with automatic ticket machines Ramps Walkways Open Stations Platforms Yellow Line (edge or at coping) Covered areas at platform Covered areas External to buildings Covered areas at Entry Covered areas with automatic ticket machines Entry Waiting Areas PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 19 of 23

21 Category Required white light lighting (Metal Halide) standard Mean EH (Lux) Required lighting standard for all other existing lighting installed Mean EH (Lux) Uniformity Safety Zone 250 Not applicable 0.7 Toilets Subways - premium Subways non-premium Covered Ramps Open Ramps Pathways Enclosed Walkway general Footbridge open Footbridge - enclosed Other Station Areas Car Park Open Car Park Enclosed DDA Car Park Space Open DDA Car Park Space Enclosed Train Sidings / Stabling Not applicable Note: Lighting levels are measured one metre above surface. PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 20 of 23

22 Appendix B: Switchboard and Circuit Identification Switchboards are identified by the supply to the boards in a hierarchy that leads to the point of supply to the installation. Single low voltage supply to a location The incoming low voltage supply is to the main switch on switchboard DB1. Sub switchboards are designate by the circuit on DB1 from which they are supplied. A 3 phase switchboard fed from circuit 1 of DB1 is designated DB1/1 A single phase sub circuit supplied by circuit breaker 2 of the red phase of switchboard DB1/1 is designated DB1/1/2R. A single phase circuit fed from circuit breaker 5 of the red phase of DB1 is designated DB1/5R. A GPO fed from circuit breaker 4 of the white phase of DB1/1 will be labelled DB1/1/4W. Multiple low voltage supplies to a location A location with a second or more incoming supplies such as an emergency, back up or supply to third parties at a station shall have each incoming supply labelled as below. The switchboard of the primary low voltage supply is to be designated DB1. The second and further supplies are to be designated DB2, DB3 as appropriate. Identification of the sub switchboards and circuits shall follow the principles above. Additional switchboard identification Switchboards shall be designated as detailed above. It is appropriate to add a description to the switchboard especially in large and multiple use locations. Examples may be: DB1 Station Services, DB2 Emergency Supply, DB2/2 Retail Kiosk, PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 21 of 23

23 SWITCHBOARD AND CIRCUIT IDENTIFICATION TYPICAL ARRANGEMENT - SINGLE SUPPLY DB1 R R R R R Y Y Y Y Y B B B B B MAIN SWITCH BOARD DISTRIBUTION BOARD DB1 / 5R SINGLE PHASE CIRCUIT SUPPLIED FROM CIRCUIT BREAKER 5 OF THE RED PHASE DB1/1 R R R Y Y Y B B B SUB SWITCHBOARD 1 DB1 / 1 / 2R SINGLE PHASE CIRCUIT SUPPLIED FROM CIRCUIT BREAKER 2 OF THE RED PHASE TYPICAL ARRANGEMENT - MULTIPLE SUPPLIES TO A LOCATION DESIGNATED MAIN SUPPLY - IDENTIFICATION AS ABOVE DB2 R R R Y Y Y B B B MAIN SWITCHBOARD SECOND SUPPLY DB2 / 3B SINGLE PHASE CIRCUIT SUPPLIED FROM CIRCUIT BREAKER 3 OF THE BLUE PHASE DB2/1 R R R R Y Y Y Y B B B B SUB SWITCHBOARD 1 DB2 / 1 / 4Y SINGLE PHASE CIRCUIT SUPPLIED FROM CIRCUIT BREAKER 4 OF THE YELLOW PHASE PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 22 of 23

24 Appendix C: MTM Approved Luminaires, Light Fittings and Pumps Car Park Lights Sylvania Roadster - Metal Halide or High Pressure Sodium 150/250 / 400 watt. IP 65 rated. Fore Court lighting WE-EF/Eagle Lighting - with Cosmoplois lamp 60 / 140 watt IP 66 rated or Sylvania -Urban. IP 65 rated 42 watt lamp Osram/Sylvania/Philips Recessed linear under platform canopy light LED lighting Electrical Distributor - CUSTOM - This product is custom made, flush mounted. T8 LAMPS Osram/Sylvania/Philips IP 65 rated Frosted polycarbonate diffuser. Also available from Mlight. Subway Lighting Pierlite - Vandalux surface mounted Fluorescent fitting. IP 65 rated. T8 lamps Osram/Sylvania/Philips. Platform pole Light Ruud Lighting /Advanced lighting Metal Halide 350 watt Venture lamp.ip 65 rated. Pathway lighting Sylvania -Urban.IP 65 rated 42 watt lamp Osram/Sylvania/Philips Internal Down Lights Must be IP 65 rated, that is the complete fitting. Platform Poles Lanez Engineering steel pole mounted at 6 metres above ground as per drawing ref S&F - L&P 0001 Car Poles Coslee Pole &Fabrication /11.5/14 steel poles. Also mid hinge poles. Concrete poles - Rocla 10/11/14 metres. Siding Yard lighting Sylvania Roadster / Sylfloods- High Pressure Sodium 150/250 / 400 watt. IP 65 rated. Pumps Flygt Pumps PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 23 of 23