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
![](https://tenetconsult.wpenginepowered.com/wp-content/uploads/2020/07/tram.jpg)
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