Commercial electrical thermal imaging inspection by CTS Electrical
Preventative Maintenance

Find Hidden Electrical Faults Before Winter

Use thermal imaging to identify abnormal heat in live electrical equipment before it causes disruption, damage or an avoidable outage.

Non-Invasive Survey
Under-Load Inspection
Clear Thermal Report
NI-Wide Coverage
See What Ordinary Inspection Cannot

Heat Can Reveal a Developing Electrical Problem

Loose connections, overloaded components and deteriorating equipment can generate abnormal heat before there is an obvious visible sign. That heat can be captured while the system is operating under its normal load.

Thermal imaging gives facilities teams a clearer basis for preventative action. It complements your fixed wire testing and maintenance programme, helping you target further investigation where it matters most.

Live

Under-Load Survey

Visual

Thermal Evidence

Targeted

Remedial Priorities

Thermal camera being used on commercial electrical equipment

Condition-Led Maintenance

Prioritise attention using real temperature evidence from operating equipment.

What a Survey Can Reveal

Six Patterns Worth Investigating

A thermal image is evidence, not a diagnosis on its own. Our engineers interpret the pattern in the context of the equipment, load and surrounding conditions.

Loose Connections

Poor contact can create localised resistance and heat around terminals, joints or connection points.

Overloaded Circuits

Unexpected temperature rise may indicate that a circuit or component is carrying more demand than intended.

Load Imbalance

Comparing similar phases or components can highlight an unusual temperature difference that needs investigation.

Deteriorating Components

Contactors, breakers, fuses and other equipment may show abnormal heat as their condition changes.

Hidden Heat Build-Up

Thermal evidence can direct attention to an issue that has not yet produced visible damage.

Repeatable Evidence

Images, temperatures and locations create a practical record for maintenance planning and follow-up.

Thermal image of an electrical distribution board
When to Book

The Right Time Is Before the Failure

Thermal imaging is most useful when equipment is operating under a representative load. Consider a survey in these situations.

Before seasonal lighting or heating demand increases

After significant equipment, layout or load changes

Where breakers trip or faults keep returning

For critical boards where an outage would disrupt operations

When heat, odour or noise has been reported without a clear cause

As part of a planned condition-monitoring programme

The CTS Thermal Survey

From Thermal Image to Practical Action

The value is not just the image. It is the engineering context, reporting and response that follow it.

01

Plan

We agree the equipment, access and representative operating conditions.

02

Capture

The engineer records thermal images and supporting visual information.

03

Analyse

Temperature patterns are reviewed against load, equipment and site context.

04

Act

You receive clear priorities for investigation, repair or future monitoring.

CTS Electrical engineer inspecting commercial distribution equipment
Part of a Wider Safety System

Thermal Imaging Complements Your EICR

Thermography does not replace fixed wire inspection or electrical testing. Used together, these services provide a stronger view of installation condition, developing heat and the action needed to keep the site reliable.

Frequently Asked Questions

Clear Answers Before You Book

The survey is normally completed while the selected equipment is live and carrying a representative load. Any covers, access or follow-up work must still be handled through an appropriate safe system of work.

No. Thermal imaging and fixed wire testing answer different questions. Thermography highlights abnormal heat while an EICR assesses the condition and safety of the fixed installation.

The scope may include distribution boards, switchgear, control panels and other suitable electrical equipment. We confirm what can be surveyed safely before the visit.

The report identifies surveyed equipment, records relevant images and explains any temperature patterns that require investigation, repair or monitoring.

Yes. Our electrical team can investigate findings, quote for remedial work and update the maintenance record when repairs are complete.

Request a Quote

Book a Commercial Thermal Survey

Tell us about your premises and preferred timing. A CTS specialist will review your enquiry and contact you directly.

Speak to CTS

Commercial Support Across Northern Ireland

Talk directly to our Lisburn team about scope, access, testing or the best next step for your premises.

NICEIC and SparkSafe accreditations
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