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Results for: high voltage

Introduction to aircraft electrical power distribution systems

April 17, 2015 Omid Orfany

The trend in modern aircraft design is away from mechanical systems (hydraulics, pneumatics, etc.) and toward electrical components, or Aircraft Electrical Power Distribution Systems. There are several benefits of the modern design (particularly weight savings). However, as with any airplane design, no system can be fielded before it can be proven safe, reliable, and able […] Read more

MIL-HDBK-454 handbook guidelines for EWIS components

November 14, 2014 Carina Cannon

This article covers eight out of the 78 military guidelines from the General Guidelines for Electronic Equipment handbook (MIL-HDBK-454) applicable to wire system component testing, EWIS component selection, and good wiring practices. The handbook covers guidelines for the selection, handling, and application of electronic equipment on aircraft. Read more

Wire and Cable Certification Testing

Beyond the equipment, system level, and EWIS degradation testing services offered by Lectromec, we offer a wide range of wire and cable certification testing. The following is a listing of the wire certification tests that Lectromec offers at this time: Lectromec is expanding the information provided on each of these tests. This information includes test […] Read more

Arc Damage Modeling Tool

Summary of Arc Damage Modeling Tool Based on over 3,000 arc damage assessment tests, the Arc Damage Modeling Tool (ADMT) is the state-of-the-art for wire failure damage assessment The ADMT is capable of predicting the damage to both direct electrical arcing (direct contact) and indirect arcing (damage from the arc plume) Data generated can be […] Read more

Test Equipment

The design of specialized test equipment is a very delicate process requiring time, effort, and attention to details, which Lectromec’s staff is fully prepared to conduct. Test equipment designed and built by Lectromec can be found in the laboratories of a number of well-known and respected companies around the world. Lectromec has been designing high […] Read more

DelTest

Summary of the Lectromec DelTest™ Use in-situ or in lab as a non-destructive means of detecting wire insulation breaches in wiring harnesses Can be used with point-to-point testers to identify breaches (patented technology) Provides superior wire insulation breach detection than current technologies Introduction to the Lectromec DelTest™ The Lectromec DelTest™ is a patented technology that […] Read more

About

Lectromec, founded in 1984, is a Northern Virginia based laboratory and engineering firm specializing in full life cycle support for wire system component testing and system engineering services. We have worked with aerospace industry, foreign and domestic militaries, and governments to serve their electrical wiring interconnect system (EWIS) testing and risk assessment needs. This integration […] Read more

Considerations for Electrical Bonding

May 15, 2014 Michael Traskos

Electrical bonding is the practice of connecting equipment cases or structure to ground to prevent electric shock. This provides a return path for any stray voltage that the case may be exposed to via component failure (e.g. wire shorted against case). The reason why proper electrical bonding techniques are so important is that it protects […] Read more

270VDC arcing in aircraft wiring

April 15, 2014 Michael Traskos

In a recent presentation to the SAE at the biannual meeting, Lectromec presented a summary of the work that was performed by several companies and the Federal Aviation Administration (FAA) last summer. These tests were performed at the FAA’s Technical Center in Atlantic City on 270VDC in aircraft wiring. There were four test objectives: Perform […] Read more

7 considerations for aircraft wire separation

March 30, 2014 Michael Traskos

The development of a safe, reliable, and easy to maintain Electrical Wire Interconnection System (EWIS) is a challenging task. The considerations range from selecting each EWIS component, to matching the load and Electromagnetic Interference (EMI) requirements of the connected devices, to ensuring your design can maintain performance across multiple zone environments. EWIS design takes a […] Read more