High-Voltage Substation Upgrades: Planning and Safe Execution
Industrial sites with ageing HV infrastructure face unique challenges. We outline the planning steps and safe systems of work that keep projects on track.
// The Challenge
High-voltage substation equipment has a finite service life. Switchgear manufactured in the 1970s and 1980s is now reaching end-of-life across a large number of North West industrial sites, and the risks of running ageing HV infrastructure beyond its design life are both financial and safety-critical.
Safe Systems of Work
Every HV project requires a comprehensive Electrical Safety Management System, site-specific risk assessments and method statements. Our engineers hold HV authorisation to UK Power Networks and Electricity North West standards and are experienced in safe isolation, earthing and working procedures on live HV systems.
“There is no such thing as routine on a high-voltage site. Every isolation, every piece of earthing equipment and every person on that substation floor is part of a controlled safe system — no exceptions.”
— Con-Tec HV Authorised Person
Minimising Production Downtime
For manufacturing and process facilities, substation downtime has a direct cost. We use temporary power arrangements, phased switching programmes and out-of-hours working to minimise impact on production. Early engagement with your site's operational team is essential.
Plan Ahead, Not Under Pressure
If your substation contains oil-filled switchgear, ageing ring main units or obsolete protection relays, now is the time to plan — not when a fault forces the issue. Con-Tec can carry out a condition assessment and produce a capital expenditure roadmap to help you manage the upgrade over a planned timescale.
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