Our Top Infrared FAQs!

Real applications of Infrared!

How long does an Infrared Scan take?

Typically 4-6 hours (depending on the gear and size of facility). Obviously every facility is different, and every scan is unique. The actual process of the scanning is very short (it is similar to filming something with a video camera). Once the panels or area to be scanned is accessible, it only takes seconds to capture it.

Accessing the actual components or objects to be scanned is where the majority of the time is spent. Many components are encased in metal panels or cabinets which may require disassembly or removal to allow the thermographer a clear view of the items of interest. In order to maximize impact and minimize exposure to inadvertent system damage, thermographers tend to evaluate and shoot the most critical gear first. This keeps the process manageable and effective

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Are there dangers associated with an Infrared Scan?

Answer:

Yes. Infrared imaging is a very complex and highly technical non-destructive examination technique that requires strict adherence to electrical safety precautions and site specific safety procedures.

We can not stress the importance of having a qualified and knowledgeable electrician opening energized gear during an electrical system inspection. The many hazards present include (but are not limited to): electrocution, shock hazards, arc flash, lacerations, etc.

Certified thermographers are highly trained in electrical safety; however they are not as familiar with your facility as you are. So please help them remain safe by alerting them to any site specific dangers that could harm them or assisting personnel.

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Will the thermographer touch or operate my equipment?

Answer:

No. Typically the Thermographer is there to shoot your gear only. Please do not expect the thermographer to aid the electrician in any way, because he/she will have his/her hands full (literally) handling the sensitive infrared detection systems.

It is important to note that most critical switchgear have interlocks that prevent accidental exposure to the energized components.

Sometimes these panels require several hands to operate correctly, so it is always a good idea to have a back-up electrician available should the primary electrician need help.

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How will the results of the Infrared Scan be given to me?

Answer:

A detailed report is typically provided discussing the infrared analysis that will include the thermal and digital images of equipment where indications were found. Each indication will have comments and recommendations to help correct the discrepancy.

These reports vary by thermographer; therefore we suggest that you evaluate a sample report before going forward. The reports should have the following items:
- Color Infrared Picture,
- Color Digital Picture,
- Recommendation on how to fix the issue,
- List of scanned equipment,
- A Summary letter detailing the results of the inspection.

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Do I need to shutdown equipment for the Infrared Scan?

Answer:

On the contrary. Only equipment energized and loaded at the time of the infrared scan can be effectively evaluated. One of the many advantages of infrared technology is that it is conducted without disrupting electrical service or operations.

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How often should I have my equipment scanned?

Answer:

This depends on how critical the equipment and the operations it supports, however today's companies typically should have their system scanned yearly.

We recommend this because today's operations are much more susceptible to electrical issues and need better preventative maintenance.
- Heavy mechanical and electrical systems in manufacturing,
- Life Safety issues (such as hospitals or nursing homes),
- Equipment or processes sensitive to electrical surges (highly computerized processes, expensive computer controlled processes, robotics, etc.),
- Up 24/7 (such as data call centers, data centers, etc.),
- Emergency Electrical Backup System (diesel generators, batteries, etc.).

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Will the thermographer re-scan my equipment after I fix it?

Answer:

Yes. The intent of this service is to help you repair issues found during an infrared scan, and performing a re-scan of the indications is critical in determining the status of repairs.

When requesting a re-scan make sure you do the following:
-Please repair all indications in the report prior to the request, this allows the thermographer to maximize the use of their resources and minimize interruptions to your operations.
-Please read the recommendations and follow them closely when performing the repairs. This will help ensure a much higher chance for success. Contact the thermographer if you have questions.
-Please be flexible, the service is extremely popular, so availability is sometimes limited in certain areas.

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What will the thermographer scan? Do I need to supply a list?

Answer:

The thermographer can and will scan a wide variety of items and components. What will be scanned depends on your particular need. For example, there are thermography applications for:
- Research and Development purposes,
- Electrical and Mechanical systems and equipment (most common),
- Integrated Pest Control,
- General Building inspections (heat/cooling loss, structural, water issues, mold, etc.),
- Roof inspections,
- Industry specific inspections (such as Electrical Utilities, Petrochemical Facilities, Mining Industry, etc),
- Residential Home inspections,
- The list goes on and on.

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Can Infrared equipment see through metal, glass, and walls?

Answer:

Infrared thermography is often confused with x-ray or radiographic equipment; Hollywood movies don't often portray the technology accurately either.

In essence, Infrared Cameras are a passive visual capture device. They have sensors that "see and record" light waves that human eyes can't see

Therefore, they cannot see through metal, glass, and walls. They can only "see and record" the infrared energy emitted from the surface of materials. This information is still very valuable however because they are sensitive enough to often detect problems inside a component by the amount of energy (heat) is being transmitted through the material.

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What safety precautions should I take during an Infrared Scan?

Answer:

In short, you are responsible for all safety precautions needed to perform an infrared scan safely. The thermographer is a vendor, and just like all contractors or vendors, ultimate responsibility falls under you.

What types of precautions are unique for thermographers? For starters, they are likely dealing with live electrical equipment, confined spaces, hieghts (roof inspections), bulky PPE (Personal Protective Equipment), while carrying a very sensitive camera.

A good conversation with the thermographer about inherent dangers in your plant is key for the initial walkthrough; we also recommend that the thermographer is always escorted by a plant employee to help ensure safety. Feel free to use our free Infrared QuickStart package to help prepare yourself for the upcoming infrared inspection. It contains great information for setting up and accomplishing an infrared scan safely.

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Answer:

Of course! While we are more than happy to assist you, most questions should be directed to the thermographer that you are working with. If you have questions concerning the general process of selecting a thermographer, quote process, or about our website, you can contact us anytime with our contact form.

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