Why You Must Make Electrical Infrared Inspection Part Of Your Maintenance Program

By Lisa Williamson


It is the duty and desire of electricians to have all components functioning in the most optimal level. Malfunction is often caused by damages, poor installation work, corrosion or even contamination. The most common sign of a problem in the system is excessive heat resulting from poor conductivity. If left unchecked, the results can range from unnecessary and costly power disruption to very catastrophic events such as electrocution and fires. Initially, more costly and time consuming physical inspection was the only dependable way to keep the system safe but engineers are now migrating to electrical infrared inspection method which has proven not only cheaper but more effective.

The general recommendation is that all parts of electrical system that are exposed to vibrations and or any other movements are inspected at least every six months while the rest are inspected on annual basis. For the system exposed to earthquakes, frozen winter conditions, very strong winds and tsunamis, there is a need for more frequent testing.

In normal distribution, infrared surveys should be conducted on annual basis and is considered part of a regular preventive and maintenance program. This form of testing makes it possible to inspect a large number of components within the shortest time possible locating the faulty items in the system that could not be located through the physical survey or testing.

The most common system components that are subject to periodic surveys include the bus ducts, the distribution panels, distribution centers, receptacle panels, the sub-feed panels, transformers, the switchgears, the lighting system, uninterruptible power supplies, the disconnects and several other related components. With infrared surveys, the faults, loose connections and any potential hazards in these components can easily be detected with the minimal time and cost.

This is the best way in terms of cost and time to inspect almost all electrical components. The most common components that need regular inspection include transformers, switchgear, bus ducts, power correcting banks, variable frequency drives, the disconnects, distribution centers and panels, sub-feed panels, the motor control centers, the uninterruptable power supplies, the lighting and the receptacle panels among several other components.

With the endorsement and approval from the InterNational Electrical Testing Association and the National Fire Protection Association and other related regulatory authorities, it is a mistake to continue depending on the manual method of testing.

There are several benefits that comes with infrared surveys among which include the ability to pinpoint the real hot spot, the reduced down time, elimination of unplanned power outages, ability to cut down on the cost of maintaining electrical system and minimization of possible hazards and related disasters. This all translates to an efficient and reliable electrical system with reduced cost of power supply.

Part of the decision to use this cutting edge infrared detection technology requires that the companies you choose for your inspection job are certified. They should have experienced engineers for the job with a proven work record. With the correct inspectors, you will be able to significantly reduce unscheduled power outages and increase energy efficiency, safety and dependability in general.




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