Source: https://tendernation.io/opportunities/01a13bbf-a1aa-7343-a32d-7d6983a01af1/high-voltage-protection-testing awarded GB open procedure # High Voltage Protection Testing [Network Rail Infrastructure Ltd](https://tendernation.io/buyers/network-rail-infrastructure-ltd) Estimated value Not stated Published 17 Jul 2025 Deadline Rolling deadline ## Who can bid - Split into 2 lots You can usually bid for just the lots you can deliver. - Sets up a framework Winning a place does not guarantee work: contracts are awarded later as call-offs, and the list usually stays closed for years. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender The provision of testing resource able to absorb defined cyclical & reactive works, undertaking substation relay protection tests comprising of 1 Level A Protection Tester with required competency specific categories and one testing assistant per team both holding 1st aid for electrical accidents. This will be per lot. This test team will carry out Services in the following: - Feeder relay test (Electronic/ Electro-Mech): OC, EF & TLY, SIP - Rectifier & Transformer protection test (Electronic/Electro-Mech): Bulhholtz, OC & EF, biased differential (PTX) - Bus zone protection The Supplier will endeavour to correct, in the same visit, faults identified during the testing to ensure a good service on site. ## CPV classification Railway engineering services Electrical apparatus for switching or protecting electrical circuits Source Find a Tender (UK) · Notice ocds-h6vhtk-056169-2025-07-17T15:00:41+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-056169-2025-07-17T15:00:41+01:00) 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 Network Rail Infrastructure Ltd: past awards and live tenders](https://tendernation.io/buyers/network-rail-infrastructure-ltd) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Vacuum Pump Tritium Testing · UK Atomic Energy Authority · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a1464c-dd0c-72ed-b7bd-bac1e52155ab/vacuum-pump-tritium-testing) [Mechanical and Electrical Consultant Tender · University Hospitals of North Midlands NHS Trust · 36 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a145df-0fba-7085-98fc-1c9389531130/mechanical-and-electrical-consultant-tender) [Asbestos Surveys · Northamptonshire Partnership Homes · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a14571-3963-732e-a081-bef649a3206b/asbestos-surveys) [Design Lead for Christchurch Learning Centre School Satellite · Bournemouth, Christchurch and Poole Council · 30 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a14503-59e7-72ad-900a-82eaae1a3048/design-lead-for-christchurch-learning-centre-school-satellite) [Penistone Station - Independent Assessor · Barnsley Metropolitan Borough Council · 25 days left · 12 Nov 2026](https://tendernation.io/opportunities/01a14495-7973-71c1-9c37-1ba8178069cf/penistone-station-independent-assessor) [CA18575 - RFQ 2026/42 - Conservation Engineer for St Paul's Church The Crag Cemetery Rostrevor · Newry, Mourne and Down District Council (NMD) · 26 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a144b0-e0b5-70b1-a4eb-e5b6dc8d3bbe/ca18575-rfq-202642-conservation-engineer-for-st-pauls-church-the-crag-ceme)