Switchgear Thermal Imaging for Data Centres

Non-invasive thermal imaging inspections for LV and HV switchgear in live data centre environments. Detect overheating breakers, failing contactors, and hidden faults before they cause downtime.

Why Switchgear Thermal Imaging Matters in Data Centres

Switchgear controls the distribution, protection, and isolation of every electrical circuit in a data centre. It sits between the incoming supply and the infrastructure it serves — UPS systems, PDUs, cooling, and server racks. When a component inside a switchgear panel fails, the impact cascades.

The problem is that switchgear faults develop silently. A breaker with degraded internal contacts. A contactor with rising resistance. A fuse holder running warm at the termination. Under partial load these anomalies won’t trip protection — but under peak demand they fail. Thermal imaging is the only non-invasive method that reveals these faults under real, loaded conditions.

– Failure Point
– Live Load Testing
– Report Turnaround

How Switchgear Inspections Work

All inspections are carried out on live, energised switchgear under real operating load — no shutdowns, no de-energisation, no disruption to operations. Panel covers are removed where safe and covered by Permit to Work.

Our Level II–III certified thermographers set all camera parameters (emissivity, ambient temperature, reflected temperature, distance, humidity) before any image capture — ensuring accurate, auditable data from every scan.

What's Included in Every Report

Every inspected component receives its own dedicated report page with a high-resolution thermogram, digital photograph, measured and ambient temperatures, delta T, BS7671 load-corrected temperature, fault severity grading, and maximum safe amps estimation. Trending data compares findings against previous inspections in both table and graphical format, with the last four historical thermograms included per component for condition monitoring.

Visual inspection notes are included to support BS7671 compliance, and all faults receive clear, prioritised remedial recommendations. Reports are uploaded to WEBCOR for instant client access on any device.

Partial discharge (PD) assessment is available on request for HV switchgear and critical LV infrastructure — providing a high-level overview of insulation condition alongside the thermal inspection.

Download: Sample Electrical Report (PDF)

Why Busbar Inspections Are Critical in Data Centres

– Busbars are the primary power distribution backbone in most data centre environments. They carry sustained high-current loads to switchgear, distribution boards, UPS systems and server racks — often running at or near rated capacity around the clock.
– Unlike cabled connections, busbar systems rely on bolted joints and mechanical connections that are subject to thermal cycling, vibration, and gradual loosening over time. A connection that was torqued correctly at installation can develop elevated resistance within 12–18 months under continuous load.
– The challenge is that these faults are completely invisible during visual inspection. The connection looks normal. The system operates normally. But the joint is running hot — and under full load, the temperature differential accelerates. By the time the fault manifests as a trip, arc flash, or failure, the damage is already done.
Thermographic inspection is the only non-invasive method that reveals these faults under real operating conditions — before they reach the failure threshold.

Real Scenario — Breaker Fault Caught Before Trip

During a scheduled inspection of an LV switchgear panel at a UK data centre, our engineer identified an MCCB running significantly hotter than adjacent breakers. The breaker had not tripped and showed no external signs of fault. Load correction confirmed it would exceed the serious severity threshold at rated capacity. It was replaced during scheduled maintenance — no emergency shutdown required.

Impact: Without thermography, this breaker would likely have tripped under peak load — disconnecting a critical circuit serving live server infrastructure.

Book a Switchgear Thermal Imaging Inspection

Get complete visibility inside every panel — before a hidden fault becomes an unplanned outage.

LV & HV switchgear Live load inspections UK-wide deployment 24–48 hour reporting

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