Thermography can tell a good story about the condition of your equipment. But first, you must pay attention to who, what, when, where, and why.
Who: The more trained a person is at conducting thermography, the more valuable the results will be. Since thermography is performed on live equipment, additional qualifications include training in NFPA-70E. Because you want someone capable of understanding the context of the scan, the ideal thermographer will be at least a journeyman electrician.
What: For a cost-effective thermography program, you must identify what equipment will be scanned in a given thermographic survey. Base your decision on such factors as:
- Elapsed time since last scan
- Trouble history of equipment
- Reported anomalies since last scan
When: What and when are iterations of each other. The same criteria for determining “what to scan” also apply to determining “when to scan.” Plus, you must apply additional criteria such as the recommended frequency and how much scanning time is available.
Where: This is similar to what, but instead of deciding what equipment to scan, you’re deciding where on that equipment to scan. Scanning a motor vent tells you one thing, while scanning its rear thrust bearing tells you another.
Why: Depending upon which problem(s) you’re trying to spot, you may scan one or both of the locations noted above.
That’s how to get a good story. So you better understand what’s being said, get qualified in thermographic analysis.
Source: Mark Lamendola | Mindconnection