Substation Wiremen

ISS Ltd.; Eccles, Kelso; On-site; GBP 45,000 - 62,000; Full time

Job summary

ISS Ltd. is recruiting a High Voltage Electrician/Wireman for contract work across major UK renewable energy projects. The role involves installation, maintenance, and repair of HV electrical systems, adhering to safety standards and project schedules.

You will interpret drawings, install containment systems, perform testing and inspections, and document reports. The position offers long-term opportunities with ongoing training in a safety-focused environment.

Qualifications

• JIB Graded Electrician status required.
• 18th Edition (BS 7671) qualification required.
• Proven experience in containment installation (tray, trunking, conduit, ladder rack).
• Experience with small wiring and multi-core cable works.
• Experience in testing and inspection of HV electrical systems.
• Strong understanding of safety protocols and HV standards.
• Ability to interpret technical drawings and specifications.

Responsibilities

• Installations & repairs on HV power distribution networks, signalling systems, SCADA and control systems.
• Ensure safety and compliance with regulations and company procedures.
• Perform fault finding and diagnostics through structured testing.
• Conduct functional and safety testing to verify performance and compliance with specs.
• Maintain installation reports, daily logs, test certificates, and maintenance docs.
• Collaborate with project managers, engineers and operatives for accurate delivery.
• Read wiring diagrams and project drawings to ensure compliant installations.
• Operate HV tools and testing instruments safely.

Skills

JIB Graded Electrician

18th Edition (BS 7671)

Containment installation

Small wiring and multi-core cable

Testing and inspection

Safety protocols

Interpreting drawings

Technical documentation

Job description

Are you a JIB‑graded Electrician or experienced Wireman with strong technical skills and a passion for high‑voltage work? Do you thrive on delivering high‑quality installations that keep critical infrastructure running safely and efficiently? Join us and play a key role in major UK renewable energy projects, helping to power a more sustainable future.

Employment Type: Contract

The Role

As a High Voltage Electrician/Wireman, you’ll be responsible for the installation, maintenance, and repair of High Voltage electrical systems. You’ll work to industry‑leading safety standards while supporting project teams to deliver high‑quality, compliant installations on time.

What You’ll Be Doing:

• Installations & Repairs: Carry out installations, maintenance, and repairs on HV power distribution networks, signalling systems, SCADA and control systems, and associated electrical infrastructure.
• Safety & Compliance: Work in accordance with all electrical regulations, site safety protocols, and company procedures. Promote a strong safety-first culture across the team.
• Fault Finding & Diagnostics : Identify and resolve electrical faults through structured troubleshooting and diagnostic testing.
• Testing & Inspection: Perform functional and safety testing on HV systems to verify performance, efficiency, and compliance with project specifications.
• Documentation & Reporting: Maintain accurate records including installation reports, daily logs, test certificates, and maintenance documentation.
• Collaboration: Work closely with project managers, engineers, and other operatives to ensure smooth project delivery and technical accuracy.
• Interpreting Specifications: Read and interpret drawings, wiring diagrams, schematics, and project documentation to ensure compliant installations.
• Tools & Equipment: Use, maintain, and safely operate specialist HV electrical tools, testing equipment, and instruments.
• Continuous Development: Stay up to date with new technologies, industry standards, and best practices with opportunities for training and further certification.

Essential Requirements

• JIB Graded Electrician status
• 18th Edition (BS 7671) qualification
• Proven experience in:
• Containment installation (tray, trunking, conduit, ladder rack)
• Small wiring and multi‑core cable works
• Testing and inspection
• Strong understanding of safety protocols and HV electrical standards
• Ability to interpret technical drawings and specifications

Why Join Us?

• Work across major national infrastructure and renewable energy projects
• Be part of a supportive, skilled, safety-focused team
• Long-term stability and opportunities for progression
• Access to ongoing training and certification pathways