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FAQ's (Frequently Asked Questions)
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Q: How do I gage the severity of my electrical problems that are found during my infrared inspection? I have had 3 different IR consulting companies do my inspection over the last few years and they all have different temperature severity scales.
A: There are about as many different temperature scales for determining the severity of problems as there are IR companies. Some companies will measure the temperature of a problem condition and provide you with the "maximum" temperature of the component as it was found and a "Delta T" difference between either a "Reference Phase" or use "Ambient" as a reference. In which ever case it is they should at least specify what they are using as the reference (although many do not).
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Example 1 |
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92 C Greater |
165 F Greater |
Critical, Repair immediately (overtime) replace component, inspect surrounding components. Repair while IR camera is still available to inspect after. |
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50 C to 92 C |
90 F to 165 F |
Serious, Repair immediate future (1-2 days). Replace component and inspect the surrounding components for probable damage. |
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25 C to 50 C |
45 F to 90 F |
Intermediate, Repair in the near future (1-4 weeks). Watch load and change accordingly. Inspect for physical damage. There is probability of damage in the component, but not in surrounding components. |
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0.55 C to 25 C |
1 F to 45 F |
Minor, Repair in regular maintenance schedule little probability of physical damage. |
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Example 2 |
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83 C Greater |
150 F Greater |
Extremely Critical |
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66 C to 83 C |
120 F to 150 |
Very Critical |
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52 C to 66 C |
95 F to 120 F |
Critical |
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0 C to 52 C |
0 F to 95 F |
Significant |
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Example 3 |
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16 C Greater |
28 F Greater |
Major deficiency; repair immediately |
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4 C to 15 C |
7.2 F to 27 F |
deficiently; repair as time permits |
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1 C to 3 C |
0.55 F to 5.4 F |
Possible deficiency and warrant investigation |
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