Rail electrical work offers steady contracts, pay rates of £35–£90+/hr, and a clear career progression from station fit-outs to traction power. This guide covers PTS, Sentinel, OLEC, BS EN 50110, and how to get started.
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Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.
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The rail sector offers a steady stream of electrical work that, while less glamorous than offshore or nuclear, provides excellent pay rates, long-term contracts, and a genuinely interesting range of technical challenges. Network Rail's CP7 (Control Period 7) runs from 2024 to 2029 and commits to billions of pounds of infrastructure enhancement and maintenance — meaning rail electrical work will be in demand for years to come.
Rail electrical work spans station fit-outs, depot electrical installations, signalling power supplies, traction power infrastructure, platform lighting, and communications systems. The unifying requirement is access to the railway environment, which demands the Personal Track Safety (PTS) card and registration on the Sentinel competency management system. Beyond that, specialist roles require OLEC qualification and deep knowledge of electrical switching under BS EN 50110.
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The Personal Track Safety (PTS) card is the baseline access requirement for working on or near the operational railway. It is not a standalone card but a competency recorded on the Sentinel smartcard. Without a valid PTS record on Sentinel, you cannot access Network Rail infrastructure.
OLEC (Overhead Line Electrical Competency) is required for anyone working on or near 25kV AC overhead line equipment on the GB main line network. The overhead line system carries 25kV AC at up to 300A — contact or an unsafe approach is invariably fatal. The clearance rules (safe working distances from live OLE) are strictly enforced.
Working in the vicinity of OLE without direct contact. Awareness of OLE clearances. Required by civil engineers, structural workers, and others who may work near but not on OLE.
Direct work on overhead line equipment — maintenance, inspection, repair. Full understanding of traction supply switching, earthing procedures, and OLE safety rules. Required for most traction power electrical work.
Senior electrical engineers and Designated Responsible Engineers (DRE). Responsible for safety of OLE working parties. Involved in switching authority and management of complex traction power outages.
Sentinel is Network Rail's competency and identity management system, operated by RSSB (Rail Safety and Standards Board). All rail infrastructure workers requiring track access or railway-specific competencies must be registered on Sentinel.
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BS EN 50110-1 (Operation of electrical installations) is the European standard governing safe operation — including switching — of electrical installations. On the railway, electrical switching involves traction supply isolations (switching out 25kV AC overhead line sections), station distribution switching, and signalling power switching.
The standard requires that switching operations are planned, that only authorised persons carry out switching, that isolation is verified by test, and that appropriate earthing is applied before work begins. Network Rail implements these principles through its Group Standard GS/RT8000 (Rule Book) and supporting electrification and plant standards.
For station and depot LV electrical work, BS EN 50110 principles are implemented through normal permit to work and isolation procedures, consistent with BS 7671 and the Electricity at Work Regulations 1989.
Elec-Mate's EIC and test record tools are ideal for station fit-out and depot electrical work documentation.
Try it free for 7 daysThe rail sector offers diverse electrical work opportunities, requiring different competency levels:
Rail electrical pay reflects the specialist training requirements and the antisocial hours involved in night-time maintenance work:
The career path typically runs: domestic or commercial LV electrician → obtain PTS and Sentinel registration → station fit-out / depot electrical work → signalling power or traction substation auxiliary → OLEC 2 training (sponsored by contractor) → traction power electrician → OLEC 3 / DRE level.
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