Inspection, Testing & Commissioning
Thermographic Scanning of Electrical Panels in Bangladesh
A thermographic scan uses an infrared camera to find hot spots in live electrical equipment: loose terminations, overloaded cables, failing breakers and unbalanced phases. Because it works under normal load with no shutdown, it is the quickest way to find electrical fire risks across a factory, and auditors increasingly expect to see a recent report.
Quick facts
- Standards
- NFPA 70B, ISO 18434-1, BNBC 2020 Part 8
- Who needs it
- Audited factories, high-load sites, buildings with ageing panels or past electrical fires
- What you get
- Infrared and visible images of each finding, temperatures, severity grade and repair advice
- Instruments
- Fluke thermal imager, clamp meter for load current, arc-rated protective clothing
Scope
What’s included.
Everything below is done by our own engineers and installation team, so one company answers for the result.
- Transformer, HT and LT panel scans
- MDB, SDB, PFI and generator panel scans
- Bus duct and cable termination checks
- Load current recorded at each finding
- Severity grading by temperature rise
- Paired infrared and visible photographs
- Re-scan after repairs to confirm the fix
Why must the scan happen under load?
Heat comes from current flowing through resistance. A loose lug on an idle circuit is cold and invisible to the camera; the same lug at full production load may be close to failure. So we scan during normal operation, ideally at peak production, and record the load current at each finding. A hot spot at light load is more worrying than the same temperature at full load.
It also means panels are opened live. Our engineers follow a safe working procedure, wear arc-rated clothing, keep their distance and never touch live parts. Where a panel cannot be opened safely while energized, we record it as a limitation instead of skipping it silently, and suggest fitting an infrared window for future scans.
How are hot spots graded?
Each hot spot is graded by its temperature rise, either above a similar component under the same load, such as the other two phases, or above ambient. A small difference may only need monitoring; a larger one needs repair at the next planned shutdown; the worst need action at once. The report states the grading criteria used, so anyone can check the result.
Not every bright spot is a fault. Polished busbars reflect heat from elsewhere, and some components run warm by design. Reading the image correctly needs knowledge of both thermography and switchgear, so our reports give the likely cause and the repair for each finding, not just a temperature.
What happens after the scan?
A scan is only useful if the findings are fixed. Typical repairs are re-tightening or replacing terminations, rebalancing loads across phases, and replacing failing breakers or undersized cables. A re-scan under similar load then proves the fault has gone. NFPA 70B treats thermography as part of an ongoing maintenance program, so most sites repeat the scan every year.
How it’s done
How we deliver it, step by step.
- 01
Agree the timing
Scan scheduled for peak production, with your electrician present to open panels.
- 02
Scan every panel
From transformer to final SDBs, each panel scanned with its covers safely removed.
- 03
Record findings
Thermal and visible images, temperatures, load current and exact location captured for each finding.
- 04
Grade and report
Findings graded by severity, with the likely cause and recommended repair for each.
- 05
Re-scan repairs
Repaired items scanned again under load to confirm temperatures are back to normal.
Price guide
What sets the price.
Every site is different, so we price from a survey, not a rate card. These are the factors that move the number, and the written quote shows each one.
- Number of panels, bus ducts and transformers to scan
- Number of buildings and distance between panel rooms
- Scanning restricted to peak hours or night shifts
- Report format, such as findings marked on your SLD
- Follow-up repairs and re-scan visits
Service areas
Thermographic scan in Chattogram, Dhaka, Gazipur and Narayanganj.
Our engineers survey, install and maintain on site across these cities and the industrial zones around them. For a site elsewhere in Bangladesh, ask and we will tell you plainly whether we can cover it.
- Chattogram
- Dhaka
- Gazipur
- Narayanganj
Frequently asked questions
It depends mostly on how many panels, bus ducts and transformers need scanning and how spread out they are across the site. Restricting the scan to peak hours or night shifts can add time. Repairs found during the scan are quoted separately. We give a fixed quote once we know the panel count.
No. The scan has to be done with equipment running under load, because faults only heat up when current flows. Panel covers are removed live by trained staff in arc-rated protective clothing. Only the repairs that follow may need a short, planned shutdown of the affected circuit.
Yearly is a common baseline for factories, with more frequent scans for critical or heavily loaded equipment and for panels with past findings. NFPA 70B sets intervals based on equipment condition and criticality. Scan again after any repair, and after major load changes such as a new production line.
Auditors commonly ask for a recent thermographic report as evidence that electrical risks are being found and managed. They look for coverage of all main panels, clear images and locations, severity grading, and proof that serious findings were repaired and re-scanned. Our reports are laid out around those points.
Guides
Read before you buy.
Electrical safety
Electrical Fires and Thermographic Scanning: Find the Fault Before It Burns
About a third of fires in Bangladesh start with an electrical fault. How a thermographic scan finds hot spots in panels and cables before they ignite.
2 min read
ReadCompliance
Garment Factory Fire Safety: A Checklist Before Your Next Audit
The fire and electrical safety points auditors check in RMG factories, from detection and alarms to exits, fire doors and electrical testing.
2 min read
Read
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