Tenet developed the concept design, from an overseas consultant, into a design acceptable to British standards and managed assembly of the distribution and UPS panels to provide trackside services and local control for the new tramstops.
Tram Network
Introduction
Detailed design and construction support for trackside services for a trail of a new tram network in a major UK city.
Services Provided
- Taking an overseas concept design and bringing into compliance with British standards and best practices
- Substantiation of the existing design concept
- Complex protection and selectivity scheme requiring full selectivity on a TT network
- Development of UPS system to ensure local tram controls operate in power fluctuations
- Construction details of the UPS and distribution panels
- Panel Specifications and Vendor Liaison
Challenges
Required by the client on a ‘Fast Track’ basis, Tenet mobilised, undertook design (including design meeting), prepared specifications and drawings, approached appropriate vendors, compiled a cost estimate, supported assembly and had delivered to site in 8 weeks
Technically, there were a number of novel challenges:
- Original design was for a three phase system, a three phase UPS would not physically fit in the space envelope
- Original concept to overseas practices, incongruent to those adopted in the UK
- Isolated earth to avoid step voltages on tram network
- Liaison with vendors to ensure components were readily available from stock with no lead times
- Going from concept to site delivery in 8 weeks
Summary
- Tenet responded to demanding timescales to provide actual built distribution panels for a novel scope of works and delivered solutions to resolve resilience and capacity issues
- By engaging personnel from outside of the nuclear sector, Tenet provided resource with a diverse skills portfolio to meet the presented challenges. Tenet successfully compiled a detailed understanding of the client’s requirements against the operational constraints
- Comprehensive operational understanding presented Tenet with an opportunity to form innovative solutions to modify the existing proposals into buildable solutions
- By engaging with Tenet, the client was provided with a design which utilised standard ‘Commercial Off The Shelf’ systems and components which could be deployed in a modular format across all the proposed tram stops
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