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Recent News

EWIS RAT Patented!

Lectromec recently received notification that the EWIS RAT and associated technologies have received a patent through the US Patent Office.

Lectromec looks forward to advancing these technologies to provide increased analysis capabilities for both new and existing aircraft systems.

NEW Arc Track Testers Now Available

Lectromec now has available the LEC1001 Six Station Wet Arc track test system. Click here to find out more.

Lectromec at the Aging Aircraft Conference

Lectromec presented a paper at the 2009 Aging Aircraft Conference on "Arcing Damage to Aircraft Components and Wire at a Distance". This will be posted on here within the next month.

ADMT

The ADMT, which is being developed by Lectromec in coordination with the FAA Technical Center, is focused on the types of damage that can be created in the case of an electrical arcing event with particular attention to aerospace applications. While electrical arcing and the subsequent damage have been a concern of the aviation industry for many years, this is the first attempt at the creation of software tool to model the damage and provide predictive analysis. This work, which started in 2007, is slated for completion in the first quarter of 2009.

The program was designed with four main goals in mind:

• Provide a fundamental understanding how damage occurs by quantifying the energy in the arc.
• Supplement and extend test data throughout the range of test parameters.
• Provide insight to how variation in test parameters will affect levels of damage.
• Show how mitigation techniques will effect arcing damage

Additionally, the results of the project were designed to provide data and guidance for certification, in particular FAR 25.1709.

The ADMT is built upon many months of testing performed both by Lectromec and the FAA Tech Center. All-in-all, over 1400 arcing tests have been integrated into the corresponding analyses. These tests were performed on a wide range of parameters included varying power sources and voltages, different circuit protection schemes, and various aerospace materials.

The ADMT further stretches capabilities by providing the user with multiple means of evaluating arcing damage. One such example of the uniqueness of the tool and the potential of the ADMT is the Arc Damage Investigation Mode. In this, the configuration of a system is entered with a known level of damage and the model will search to create a situation which match that level of damage given the damage thresholds defined by the user.

There are other modes of operation of the ADMT are not fully described here, but would likely prove useful to those interested in discovering the potential level of arcing damage of a wire bundle or harness to aircraft system or materials. This would be of particular usefulness to those seeking aircraft certification (or supplemental type certification) and require data to substantiate their EWIS design.

The ADMT was developed based on quantifying the energy released in the arc and can predict the level of damage based of circuit and material parameters. This tool, which is being integrated into the larger Electrical Wire Interconnection Systems Risk Assessment Tool (EWIS RAT(TM)), will provide more robust damage analysis capabilities to the extensive risk assessment technologies pioneered by Lectromec in the EWIS RAT(TM)