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PAI - Positional Accuracy Improvement - Untied Utilities

united-utilities-logoCad-Capture was awarded a one year contract to re-align United Utilities’ electricity, clean water and waste water distribution networks in respect of the Ordnance Survey’s Positional Accuracy Improvement (PAI) programme. Completed on 31st March 2006, the Ordnance Survey’s PAI programme was developed to enable the capture of 1:2500 data to a greater absolute accuracy, resulting in an improved and more consistent accuracy standard of mapping for rural and semi-rural areas.

The impact of this programme is considerable, creating varying and inconsistent shifts, requiring Government Agencies, Utilities and Local Authorities etc to re-align digital assets or features currently referenced to pre-PAI background mapping. For example, in the case of a Utility, cables or pipes located underneath a pavement may appear to move to the middle of a road or to cross garden areas as a result of post-PAI mapping data being shifted by several metres.

With the increasing use of GPS positioning for surveying, Utilities are compelled to ensure that data sets are accurate as well as consistent with those utilised by stakeholders and other organisations in order to comply with regulatory requirements, improve safety standards and reduce the likelihood of an incident, as well as reduce operating costs...

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GIS Quality Assurance - United Utilities

united-utilities-logoResponding to the needs of an increasingly regulated and demanding utilities market, United Utilities embarked upon a major project to implement a fully integrated GIS model of their electricity distribution network serving over 2 million customers across the North West of England.

The GIS project was partly undertaken to help meet regulatory requirements for standards of service and to enable prompt and accurate identification of physical assets relating to specific customers so that fault identification and, where appropriate, compensation requirements could be achieved. Providing a comprehensive geographical representation of the entire network and modelling the connectivity between physical assets e.g. sub-stations, transformers, cables, joints and street furniture etc, the GIS model has enabled United Utilities to improve service delivery by helping response times of accurate, reliable and up-to-date information utilised by planning and operational staff, as well as field engineers via ruggedised laptop computers.

Comprising 12 million asset features, more than 100 million attributes and a further 2.4 million address features, the GIS model took over 2 years to complete at a total cost of £9.62M, incorporating 45,000 km of underground cables, 14,000 km of overhead lines and 18,000 substations.

Cad-Capture had previously established a close working relationship with United Utilities following the successful completion of the ESCAR project, involving the capture of 210,000 large format paper network records that were based on OS mapping and in multi colour format to represent the various network voltages. These paper records detailed the electricity distribution network, previously held at drawing offices in Manchester, Preston, Kendal and Carlisle. Seen as a ‘stepping stone’ to a fully integrated GIS model, the ESCAR project provided United Utilities with a seamless raster map base of the network within GIS...

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Network Amendments - United Utilities

united-utilities-logoCad-Capture has recently completed a project to develop an integrated Document Management and Workflow solution for capturing and recording amendments to United Utilities’s (UU) electricity network, on behalf of UU’s Asset Data Records (ADR) team. The ADR team are reliant on the submission of detailed ‘as laid’ information regarding the nature and location of on-site works undertaken by UU’s operational staff, engineers or contractors.

Each amendment is documented and a work packet, including the original work instruction, together with, for example, hand drawn sketches and annotations of changes made, submitted to the ADR team so that network changes can be committed to UU’s Geographical Information System (GIS). Based on DM, Workflow and BI components of Open Text’s LiveLink ECM - eDOCS™ content management suite, Cad-Capture’s solution takes control of the process by which minor amendments are recorded, providing team members with the ability to electronically define, manage and monitor the entire process in accordance with key performance criteria...

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Asset Record Scanning - ESCAR - Unitied Utilites

united-utilities-logoManaging records on a substantial electricity network is a complex undertaking. However United Utilities (UU) has taken a fresh approach and used new technology to improve its information resources. The Electronic Scanned Asset Record (ESCAR) project has enabled UU to reduce its costs, speed time to knowledge and provide a platform for future development.

A major UK multi-utility company, UU is responsible for electricity distribution to over 2 million homes and businesses in the North West of England. Details of UU’s electricity network are held on over 200,000 hard copy records stored at 4 drawing offices in Manchester, Preston, Kendal and Carlisle. Prior to implementing ESCAR, UU used a microfiche system to manage their cable network and plant records. The microfiche system had many disadvantages. Amendments to records were extremely time consuming. In addition, the system constantly need maintaining and parts were costly and diffi cult to maintain. By implementing ESCAR, UU would overcome many of the problems associated with the microfiche system and benefit in terms of improved accessibility to information, reduced costs and effective control over document revisions.

Because records were in constant use, document capture was carried out on-site at each of the 4 drawing offices, with Cad- Capture providing 6 large format colour scanners. The Colortrac GSX3800 was selected for its ability to scan at the required resolution with the necessary clarity and colour capability. On commencement of the project, 3 scanners were located at each of the Manchester and Preston offi ces, where the bulk of UU’s records were stored. On completion of the operation at Manchester and Preston, 2 scanners from each site were then relocated to the Kendal and Carlisle offices, where the remaining records were captured. On completion of the project, a scanner was left at each site for day-to-day business maintenance and resultant re-scans..

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Document Conversion - NORWEB

norweb-logoNorweb is an electricity and gas supply distribution company. A subsiduary of United Utilities, the business includes Norweb Energi, Norweb Telecom and Norweb Distribution. Norweb Distribution maintains a distribution network of around 14,000 kilometres of overhead lines, 45,000 kilometres of underground cables and 32,000 substations to supply electricity from power stations and the National Grid. Norweb Distribution is responsible for delivering 23,800 GWh of electricity annually to 2.2 million customer premises in the North West of England.

Headed by Alan Jones, the Grid and Primary Systems department is responsible for all 132kV and 33kV asset replacement project work within the North West of England. The department is divided into three functional sections; Major Asset Development, Major Asset Construction and Network Management. The work of the department involves system planning and design, the management of electrical and civil construction projects and the management of maintenance works on the system.

Bruce Taylor, Major Asset Development Team Leader based at Norweb’s Hathersage Road site in Manchester was facing a problem. All the drawings and records detailing Norweb installations throughout the area were stored in a number of electronic formats based around various out of date and unsupported legacy CAD systems as well as some in AutoCAD R12. Many of the drawings were diffi cult to use and there was no assurance that the Unix based CAD systems used to produce the drawings would be Y2K compliant. Norweb had no effective drawing management system in place and used a Sybase database as a drawing register. Added to this, they also had a considerable number of large format paper drawings and 70mm microfi lms that were required to be in electronic format if they were to be a useful resource.

Norweb took the decision to implement a comprehensive document management system throughout the Grid and Primary Systems department. The solution sought, involved the installation of a Motiva document management system to be supplied by EDC Photonic with all CAD stations operating AutoCAD14 and GTX rasterCAD. The project would also involve the installation of new hardware systems to replace the existing ageing equipment and the conversion of all the existing drawings regardless of their format to be compatible with the new system. The conversion of their existing drawing archive would enable them to progress from their present situation of having to use a variety of legacy systems for storage, retrieval and viewing of documents to a standard system for fi nding and viewing all documents. Norweb turned to Cad-Capture for document conversion services in order to achieve their aim of compatibility for their existing drawings.

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