Electricity Asset Management Plan 2019-2029
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Vector Limited://
Network operating standards (EOS series)
These standards define protocols and procedures for operating and controlling Vector’s electricity network, including contingency plans. They also inform minimum requirements for network planning and design practices Design standards and their accompanying standard design drawings sets out the requirements for and the detailed design and installation of equipment. They also include the data capture requirements for our asset management systems. and plant in Vector’s network. Our design standards and standard designs has modularity and simplicity at its core to enable deployment at any site or situation. Design standards are listed in Appendix 2 in Section 7. Technical specifications specify the materials and equipment to be used on the electricity network and the quality and performance requirements with which the materials and equipment shall comply. Technical specifications are listed in Appendix 2 in Section 7. Australian and New Zealand standards as well as International Electrotechnical Commission (IEC) standards are referenced extensively in our standards and scopes of work. A full list of the standards that we reference is beyond the scope of this AMP.
Design and construction standards (ENG, END, EDE, ESE, CND and ESS series)
Technical specifications (ENS)
AS/NZ standards IEC standards
Table 3-3 Major asset standards
PROCESSES A process document is a detailed view of tasks to achieve a particular end. It includes business rules for the running of day to day operations and established protocols of a procedure or behaviour in any group or situation. In many cases these will include process flowcharts. We are reliant to a large extent on standards and specifications to guide use but we have a number of processes for which flowcharts are required: for example our engineering design manual contains the flow process from inception of a project to delivery and commissioning; our controlled document standard explains the flow process for a how a new standard or document is assigned a number; our process for the replacement of an 11 kV overhead automation devices describes the flow to determine protection and SCADA requirements, procurement, installation and protection settings updates. Not all of our standards and specifications include processes – they form part of the document as appropriate and where required. GUIDES A guide or guideline is a written instruction that shows or tells how something should be done, e.g. manuals, handbooks, guidelines, codes of practice. We make extensive use of manuals and guidelines for our network plant: manuals are delivered as part of the delivery and commissioning of the plant in both hard and soft copies. Hard copies are stored on site in dedicated shelves to be available for operating and maintenance personnel to refer to. Soft copies are stored in our structured software filing system. We also refer extensively to guides for our engineering designs and system modelling; examples are the AS/NZS overhead line design handbook that we refer to for the design of our overhead network and the extensive guide for our Digsilent subtransmission and distribution software analysis tool (for powerflows and fault levels). The EEA has issued and continues to revise and update a number of guides and we refer and use these guides extensively in the management of our assets. Examples are: guide on arc flash protection, guide to power system earthing etc. We refer and extensively use a number of New Zealand codes of practices, e.g. NZECP34, NZ Electrical code of practice for electrical safe distances. There are many other that we refer to in our asset management practices. 3.5 ASSET MANAGEMENT SYSTEM Our Asset Management System encompasses all practices associated with a co-ordinated approach to realise value across the full asset lifecycle, from planning to disposal; and consideration of the circular economy for new technology. This aims to create clear linkages from organisational strategic objectives that set clear Asset Management objectives, and enable effective Asset Management Plans to be created that, when delivered, achieve on the series of aligned objectives. Continuous improvements in our Asset Management System, with supporting risk, cost and performance monitoring, and data driven reporting, will ensure a full “Line of Sight” throughout the Asset Management governance structure, from organisational objectives to individual asset level performance. We continuously measure and review the progress against the stated objectives to ensure we remain on track and respond quickly to changes in our operating environment.
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