Infrared Thermography Testing is a non-invasive diagnostic technique used to detect abnormal heat patterns in electrical and mechanical systems. It plays a critical role in preventing equipment failure, electrical fires, and unplanned downtime across marine, offshore, and industrial installations.
This method uses advanced thermal imaging to identify temperature variations in both low-voltage and high-voltage systems without interrupting operations, ensuring safe and continuous monitoring.
Codes and standards of Thermographic Survey are,
NFPA 70B 2023 edition
All electrical equipment must undergo an annual infrared inspection, according to with more frequent inspections required for equipment that needs immediate repair.
NETA
Offers recommendations for Delta T (temperature differential) criterion. A Delta T of more than 15°C (27°F) between comparable components under load, for instance, denotes a serious problem that needs to be addressed right away.
ISO 18434-1 and -2
International standards for thermography data gathering and picture interpretation for machine system diagnostics and condition monitoring.
ISO 18436-7
Thermographers must meet the qualifications and certification standards require at least Level 1 certification
Electrical thermal imaging services in UAE
Infrared thermography surveys inspect low and high voltage electrical installations. It determines temperature variations in industrial three-phase circuits. Technicians can identify performance abnormalities by examining thermal gradients. This advanced non-invasive technique detects heat outputs using thermal scanners, converting infrared radiation into visible light. All objects above absolute zero emit infrared energy, which is the basis of thermal imaging.
Transformers
Control panels
Switch gear
Electrical cabinets
Capacity bank
Electrical Panels
MDBs/SMDBs/DBs
Bus bars
Thermal imaging is a crucial component of industrial preventative maintenance plans. By enabling the detection of anomalous heat patterns, such as those caused by overloads or impending equipment breakdowns, thermal imaging can significantly improve operational efficiency and safety. Infrared thermography can be used to identify and address minor problems before they become disastrous. Numerous electrical problems that, if ignored, could lead to equipment failure or a more serious electrical hazard can be detected by thermal patterns of electrical equipment’s survey.
Frequently Asked Questions?
Why are Life Saving Appliance (LSA) and fire fighting equipment inspections mandatory on ships?
LSA and firefighting inspections are required by international law under SOLAS Chapter II-2 (Fire Protection, Detection and Extinction) and SOLAS Chapter III (Life-Saving Appliances and Arrangements). These regulations impose a legal duty on shipowners, operators, and masters to ensure all safety equipment is maintained in a state of full operational readiness at all times while the vessel is at sea or in port.
In any maritime emergency — fire, flooding, collision, or grounding — life saving and fire fighting equipment represents the final defense for every person onboard. Equipment that has not been properly serviced, tested, and certified is highly likely to fail at the critical moment it is most needed. Non-compliance can result in vessel detention by Port State Control, invalidation of P&I or H&M insurance, and criminal liability for the Master or responsible officer in the event of an incident.
How often must LSA and fire fighting equipment be inspected?
Inspection intervals are defined by SOLAS and supplemented by flag state and classification society requirements. The main intervals are:
Weekly (Crew-Performed):
- Visual check of all fire extinguishers — condition, pressure gauge, accessibility
- Test of fire detection and alarm systems
- Lifeboat/rescue boat engine test run (minimum 3 minutes in gear)
- Check of lifeboat general condition, gripes, and release gear
Monthly (Officer-Led):
- Full inventory check of all LSA — lifejackets, immersion suits, EPIRBs, SARTs
- Inspection of survival craft, rescue boats, and launching equipment
- Test of all fixed fire suppression system controls
- Check of all fire detection detectors and alarm panels
Annual (Approved Service Provider + Class):
- Full inspection and certification of all fire extinguishers
- CO2 system annual inspection with pressure checks
- Inspection and certification of lifejackets, immersion suits, SCBA, EEBD
- Calibration of gas detectors, pressure gauges and UTI meters
Five-Yearly (Maker-Approved + Class Witnessed):
- CO2 system cylinder hydrotesting
- Foam sample laboratory analysis
- Sprinkler and water mist system five-year survey
- Lifeboat falls wire renewal or end-for-end turning
What are the most common Port State Control (PSC) deficiencies related to fire and LSA equipment?
PSC inspections regularly identify the following deficiencies, many of which result in vessel detention:
- Expired annual service certificates for fire extinguishers or LSA
- Fire extinguishers not accessible, obscured, or missing seals/pins
- CO2 system weight loss beyond permitted tolerance (>5% of total charge)
- Lifeboat engine failure to start during test
- Worn, kinked, or expired falls wire on davit systems
- Immersion suits with cracked seals, broken zips, or expired pressure test dates
- Inflatable lifejacket cylinder not correctly fitted or expired
- SCBA units with low or expired air cylinders
- EEBD units with expired or near-expiry battery/cylinder
- Fire detection system faults showing on main panel — unresolved alarms
- Missing or expired pyrotechnics (flares) in lifeboats
- EPIRB or SART with expired battery or failed self-test
Maintaining a structured planned maintenance system (PMS) linked to your service provider’s schedule is the most effective way to avoid these deficiencies.
Who is authorized to inspect and certify LSA and firefighting equipment on a vessel?
SOLAS and IMO guidelines require that annual and five-yearly inspections of most LSA and fire fighting equipment are performed by qualified, approved service providers, not the ship’s crew alone. The specific requirements are:
- Fire extinguishers and fixed systems: Approved service companies holding the relevant manufacturer authorizations and class society endorsements
- Inflatable lifejackets and immersion suits: Class approved service stations for inflatable equipment
- SCBA and breathing apparatus: Class approved service stations for breathing apparatus inspection & service.
- CO2 fixed systems: Companies approved under classification body and technicians proficient on the make & model of the systens
- Lifeboat and davit systems: Maker & classification body approved service stations as required by MSC/Circ.1206/Rev.1
In all cases, the certifying technician must be able to demonstrate current approval status from the relevant classification society and/or equipment manufacturer. This is the certificate that PSC inspectors and Class surveyors will request.
In practice, most flag states delegate their statutory survey functions to recognized Classification Societies. For LSA and firefighting equipment, the Class surveyor may witness annual or five-yearly service inspections and sign off on service certificates as part of the vessel’s annual or renewal survey.
What types of fire extinguishers are carried on ships and offshore platforms?
The main types of portable and semi-portable fire extinguishers found onboard vessels and offshore installations are:
- Dry Powder (DP) Extinguishers: Available in 2 kg, 6 kg, 9 kg, 12 kg, 25 kg, and 50 kg sizes. Used for Class A (solid), Class B (liquid), and Class C (gas) fires. Extremely common on engine rooms, cargo decks, and machinery spaces.
- CO2 (Carbon Dioxide) Extinguishers: Available in 2 kg, 5 kg, and 10 kg sizes. Used primarily for electrical fires (Class E) and Class B fires. Found in electrical switchboard rooms, server rooms, and galleys.
- Foam Extinguishers (AFFF): Available in 9 litres, 45 litres, and 135 litres. Effective for Class A and Class B fires. Common in engine rooms, pump rooms, and cargo handling areas.
- Wet Chemical Extinguishers: Used specifically for Class F (cooking oil/fat) fires. Mandatory in commercial galley spaces on SOLAS vessels.
- Water Mist Extinguishers: Used for Class A and some electrical fires. Increasingly common as an environmentally clean alternative.
Each extinguisher type has specific inspection, testing, and refilling requirements, and must be appropriate for the fire risk in the space where it is located.