Source: https://tendernation.io/opportunities/01a13b92-8c27-704a-82c6-540cefca27cf/1073434028-t1427-strategy-for-harmonising-automatic-current-limitation-across-el Open for bids GB open procedure Suitable for SMEs # 1073434028 T1427 Strategy for Harmonising Automatic Current Limitation Across Electric Rolling Stock in GB [Rail Safety Standards Board (RSSB)](https://tendernation.io/buyers/rail-safety-standards-board-rssb) Estimated value £180,000 Published 13 Oct 2026 Deadline 28 days left 16 Nov 2026 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender This research seeks to develop the evidence base required to inform the transition towards harmonised ACL characteristics across rolling stock operating on the GB network. It will confirm and refine the previously proposed target state for ACL harmonisation (that is BS EN 50388-1:2022 without UKSNC (Umin2 = 17.5 kV)), fully accounting for technical feasibility and economic viability, and develop a detailed pathway from current to target state for existing and future rolling stock. Specifically, the research will address the following objectives: 1.Confirm and detail the target state for ACL harmonisation and the rationale for its adoption: this includes accounting for wider system consequences and trade-offs, quantified associated benefits, costs and risks. 2.Define a transition pathway from current to target state: this includes specifying the ACL changes that are technically achievable and economically justified for existing rolling stock, the ACL requirements for future rolling stock, the role and deployment of dual trains, and the phasing required to reach the target state. For more information about this opportunity, please visit the eSourcing portal at: [delta-esourcing.com](https://www.delta-esourcing.com/tenders/UK-UK-London:-Research-services./E6E28TZ9KW) To respond to this opportunity, please click here: [delta-esourcing.com/respond/E6E28TZ9KW](https://www.delta-esourcing.com/respond/E6E28TZ9KW) ## CPV classification Research services Source Find a Tender (UK) · Notice 096546-2026 [View official notice](https://www.find-tender.service.gov.uk/Notice/096546-2026) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Rail Safety Standards Board (RSSB): past awards and live tenders](https://tendernation.io/buyers/rail-safety-standards-board-rssb) [Sector More Research & development tenders](https://tendernation.io/sectors/research-development) ## More tenders like this [1074279646 T1416 - Feasibility and impact of a full description of train path · RSSB · 22 days left · 10 Nov 2026](https://tendernation.io/opportunities/01a13b92-8e5c-7259-9232-d303f7b0dc18/1074279646-t1416-feasibility-and-impact-of-a-full-description-of-train-path) [1074032381 T1424 Passenger Rolling Stock Emergency Window Repair Procedures · Rail Safety Standards Board (RSSB) · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a1404a-e53c-7026-aba9-dd97adaf7592/1074032381-t1424-passenger-rolling-stock-emergency-window-repair-procedures) [Heaton Reception Road Enhancement · Northern Trains Limited · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a145df-117d-72ed-82eb-fa982f8ae9fe/heaton-reception-road-enhancement) [UK4 - Tender Notice Template for CSM & RIR Framework · Network Rail Infrastructure Limited · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a13be8-b09c-706c-b694-e9be74759aa2/uk4-tender-notice-template-for-csm-rir-framework) [Southern Track and Rail Systems Phase 3 · Thameslink Southern Great Northern Limited (TSGN) · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a13bea-1d62-710c-95ef-69faa8553e38/southern-track-and-rail-systems-phase-3) [Department for Transport Shared Research, Evaluation and Analysis · Department for Transport · 24 days left · 12 Nov 2026](https://tendernation.io/opportunities/01a13be1-27e5-7016-b54f-5667de1b58d4/department-for-transport-shared-research-evaluation-and-analysis)