Thermal Imaging

 

What is thermal imaging used for?

Thermal imaging is a method of improving visibility of objects in a dark environment by detecting the objects’ infrared radiation and creating an image based on that information. Thermal imaging, near-infrared illumination, low-light imaging and are the three most commonly used night vision technologies.

ELECTRICAL INSPECTION AND TESTING
WHY DO I NEED TO CARRY OUT ELECTRICAL INSPECTIONS – THERMAL IMAGING?

The Electricity at Work Regulations of 1989 requests a “duty of care” on landlords and employers to maintain electrical systems to prevent danger. Thermal imaging is a widely used method as it can identify problems that the naked eye cant and it is non-invasive or intrusive. Thermal imaging can detect potential problems within the electrical distribution system without the need to isolate circuits. Images can be taken of key components captured in a thermal image and a digital image. Thermal imaging gives you the ability to carry out live testing whilst meting your obligations under legislation.

Thermal Imaging

By detecting anomalies often invisible to the naked eye, thermography allows corrective action to be taken before costly system failures occur. Thermal Imaging or Thermography is the process of using a special camera designed to look only for heat by way of infra red (IR) energy waves. Potential problems can often be found due to excess heat being released by an electrical system, even those which would normally produce some heat when performing at their optimum level.

If undetected these problems can lead to failure and can result in expensive production loss or downtime and, in the most extreme case, can lead to fire. A regular programme of thermal imaging as part of routine maintenance can highlight potential problems long before any event. As a result any required repairs can be planned for in terms of both time and budget. In short, it is an invaluable resource for predictive maintenance. Thermography has applications in many different areas which are listed below.

Thermography can detect the following in electrical systems:

  • Loose connections
  • Overloads
  • Phase imbalances
  • Corrosion
  • High resistance in fuses and switchgear

Thermography can detect the following in mechanical systems:

  • Motor overload
  • Worn Bearings
  • Boiler seal leakage
  • Insulation breakdown
  • Hydraulic, steam and hot water systems
  • Tank levels and insulation
  • Valves
  • Turbines

 

WHO SHOULD DO THE WORK?
This type of work must be carried out by a qualified and experienced test Engineer. All of our Engineers are fully qualified electricians who have experience of test and inspection, and hold Level 2 thermography certifications. Remember to ask contractors to provide evidence of qualifications before undergoing any works.

ETM are accredited specialists in the following areas, providing cost effective compliance services

Portable Appliance Testing (PAT) • Electrical Installation • Electrical Inspection • Fixed Wire Testing• Repairs and Remedial
• Electrical Compliance • Energy Monitoring • Thermal Imaging • Emergency Lighting Testing • Fire Alarm Testing • Fire Extinguisher • Lightning Protection •Legionnaires Testing

ETM Electrical Test Midlands offers a range of testing and certification services to support customers in managing compliance around electrical safety for new and existing installations.
For further information, call 01922 710014 or visit www.electricaltestmidlands.com for more advice

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