Thermography
All bodies at temperatures above absolute zero radiate heat from their surfaces in proportion to the temperature of the body. Such radiant heat, invisible to the naked eye can be detected using a suitable camera to produce thermal images.
These images are converted to radiometric images and show the variation and distribution of temperature of the object viewed. These show heat distribution as coloured contours.
These isothermal bands represent higher temperatures as paler colours, i.e. white, yellow etc. and cooler temperatures at the opposite end of the spectrum, i.e. blue, violets etc.
The practical uses of this technique are as a diagnostic measure for the inspection of electrical and mechanical equipment and processes to give early warning of fault conditions characterised by overheating or variations of temperature.
In the normal course of events, plant is surveyed whilst operating at normal load and in the event of a thermal anomaly or defect being found, recordings are made for post survey analysis.
Our Service
When initiating a new thermal predictive maintenance program we work with our clients to determine an appropriate list of site critical assets. These general include site control panels and electrical distribution systems although it is not uncommon to include mechanical components in the route. Once the scope has been established we will then gather relevant asset details to enable us to build the monitoring route.
Our surveying engineer will then attend site to an agreed schedule taking repeat measurements each visit.
Prior to leaving site our engineer will debrief site teams with any immediate findings and remedial actions required. We then follow up with our full written report and recommendations within three days of completing the survey.
In addition to thermal related faults our engineers will also report on any peripheral defects noted during the survey.
Full site specific method statements and risk assessments are provided prior to attending site and once initial inductions are completed our engineers are self-sufficient when on site so will not drain valuable site resources.
Survey costs are determined by the number of assets in each survey and the time required to complete the survey. Contact us to discuss how we can help you to improve the reliability of your assets and reduce your maintenance costs.