L1-CHE-STD-011 1500VDC OVERHEAD WIRING …

1 Engineering Standard Electrical Networks L1-CHE-STD-011 1500 VDC OVERHEAD WIRING SYSTEM Version: 2 ELECTRICAL NETWORKS STANDARD 1500 VDC OVERHEAD WIRING SYSTEM MEST 000002-02 Version: 2 Effective from: 1st July 2018 L1-CHE-STD-011 Approving Manager: Chief Engineer Approval Date: 01/07/2018 Next Review Date: 01/07/2021 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 2 of 53 Approval Amendment Record Approval Date Version Description 02/05/2013 1 Initial Release under MTM.

2 Supersedes the following Standards: 1. VRIOGS Train OVERHEAD Design Standard, 2. PTC D001467 Train OVERHEAD Design Standards for The Electrification of New Routes - 1997 (Issue 5), 3. PTC D001468 Train OVERHEAD Design Standards for The Construction of New Railway OVERHEAD Works - 1997 (Issue 3), and 4. PTC D001469 Train OVERHEAD Design Standards for The Rehabilitation of Existing Routes - 1997 (Issue 3) 01/07/2018 2 Major re-write. Document previously titled OVERHEAD LINE ELECTRIFICATION ELECTRICAL NETWORKS STANDARD 1500 VDC OVERHEAD WIRING SYSTEM MEST 000002-02 Version: 2 Effective from: 1st July 2018 L1-CHE-STD-011 Approving Manager: Chief Engineer Approval Date: 01/07/2018 Next Review Date: 01/07/2021 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 3 of 53 PREFACE This Standard will be managed under the Engineering Standards Development Procedure (L1-CHE-PRO-032).

3 As documents are uncontrolled once printed, it is imperative to check the currency of the Document on The Depot or the MTM s Document Portal which is available externally at All MTM Standards and Specifications are periodically reviewed, and new editions are published which incorporate learnings and Technical Notes (formerly known as Design Practice Notes). Technical Notes are issued between editions which correct any errors or ambiguities contained in an MTM Standard/Specification.

4 Standards and Specifications may also be withdrawn and/or replaced. In the event of conflicts or discrepancies between different types of technical documents, refer to the order of precedence as defined in Chief Engineer s Guideline Engineering Standards Listing (L1-CHE-GDL-005). Note: Any clarification described in a Technical Note or Design Practice Note shall take precedence over the impacted clause or clauses in the associated MTM Standard/Specification. In the event a clause within a Standard/Specification is not achievable a waiver will need to be raised, please refer to the Engineering Waiver Procedure - L1-CHE-PRO-001.

5 Note: MTM does not have the authority to grant waivers on any Standards/Specifications or clauses within a Standard/Specification which relate to Government Regulations or Legislation, Electricity Safety Act, Electrical Safety Regulations (Energy Save Victoria), Disability Discrimination Act. ELECTRICAL NETWORKS STANDARD 1500 VDC OVERHEAD WIRING SYSTEM MEST 000002-02 Version: 2 Effective from: 1st July 2018 L1-CHE-STD-011 Approving Manager: Chief Engineer Approval Date: 01/07/2018 Next Review Date: 01/07/2021 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 4 of 53 Table of Contents 1 Purpose.

6 6 2 Scope .. 6 3 Abbreviations .. 6 4 Glossary of Terms .. 7 5 Definitions .. 11 6 References and Legislations .. 12 7 Related Documents .. 12 MTM References .. 12 Industry References and Legislation .. 14 Australian References .. 14 International References .. 15 8 Safety and Environmental .. 16 9 OHW Design Principles .. 17 10 1500V DC OHW Design Criteria .. 18 Mechanical and Electrical Clearances .. 18 Station 19 Separation of OVERHEAD WIRING Structures and Low Voltage Apparatus .. 19 Climatic conditions .. 19 Line speed.

7 20 Continuous Current Ratings .. 20 Sectionalising .. 20 Airgaps .. 21 Span lengths .. 23 Tension lengths .. 24 Tensioning equipment .. 25 OVERHEAD WIRING Conductors .. 25 Section Insulators .. 36 Points, Crossings and Turnouts .. 36 Yards and Sidings .. 36 Cables .. 37 Switches and Isolators .. 38 Insulation coordination .. 39 Earthing and bonding .. 39 Refurbished OHW .. 40 Staging OHW .. 43 ELECTRICAL NETWORKS STANDARD 1500 VDC OVERHEAD WIRING SYSTEM MEST 000002-02 Version: 2 Effective from: 1st July 2018 L1-CHE-STD-011 Approving Manager: Chief Engineer Approval Date: 01/07/2018 Next Review Date: 01/07/2021 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 5 of 53 11 OHW Structures and Support.

8 44 General 44 Gauge 44 Structural loading and deflection limits .. 45 Portals and two-track cantilevers .. 45 Drop verticals .. 46 Under-line bridges and viaducts .. 46 Over-line Bridges .. 46 Support and registration equipment .. 47 Connectors and fasteners .. 48 Small part Steel work .. 48 Pollution and Corrosion Protection .. 49 12 Design Documentation and Certification .. 50 General .. 50 Electrical Diagrams .. 50 Tension Length diagrams .. 50 Layout Plans .. 51 Profile Drawings .. 51 Cross Section Drawings.

9 52 Other OHW design information .. 52 ELECTRICAL NETWORKS STANDARD 1500 VDC OVERHEAD WIRING SYSTEM MEST 000002-02 Version: 2 Effective from: 1st July 2018 L1-CHE-STD-011 Approving Manager: Chief Engineer Approval Date: 01/07/2018 Next Review Date: 01/07/2021 PRINTOUT MAY NOT BE UP-TO-DATE; REFER TO METRO INTRANET FOR THE LATEST VERSION Page 6 of 53 1 Purpose To define the standards required for the design and construction of the traction WIRING , cables and related equipment for the Melbourne Metropolitan Railway. 2 Scope This standard applies to the design and construction of all new electrification projects for the Melbourne Metropolitan Railway Network.

10 This standard also applies to the upgrading of the existing traction WIRING , distribution lines, cables and related equipment. 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. MTM Head of Engineering - Electrical shall be consulted in cases where there are perceived to be uncertainties, conflicts or ambiguities as to the requirements or the intent of this standard.