Conformity Magazine- May 2008 - (Page 41) ircraft constructed largely from composite materials offer significant improvements in operating cost, passenger comfort and environmental impact. These new technologies have necessitated a review of the way aircraft are tested to ensure survivability against lightning strikes. The Society of Aerospace Engineers (SAE) prepares technical input to support the Radio Technical Commission for Aeronautics (RTCA) and the European Organisation for Civil Aviation Equipment (EUROCAE). In December 2007, the latest revision of RTCA/DO-160 was released. The EUROCAE equivalent document ED14 has also been issued. DO-160 and ED14 revision F provide a generic basis for testing that is used by equipment manufacturers for their own standards. All the major airframe manufacturers issue standards for their new aircraft types which take into account not only new materials in the aircraft structure but also new technologies, such as electrical actuators, in-flight entertainment (IFE), fully automatic digital engine controllers (FADECs), etc. (see Figure 1). The DO-160 standard contains many chapters that relate to all aspects of testing. For the purpose of this article, we will focus only on those chapters related to impulse testing. This reduces our scope to the following sections: • DO-160 section 17 voltage spike • DO-160 section 19 induced signal susceptibility • DO-160 section 22 lightning-induced transient susceptibility • DO-160 section 25 electrostatic discharge (ESD) The major airframers (Boeing and Airbus) have test requirements based on DO-160 but with additions and variations to cover specific designs. For example, Boeing has issued a test document D6-16050 which specifically addresses test requirements for the 787 “Dreamliner.” Airbus ABD0100.1.2 is a document that reflects test requirements for the A380. The A350XWB is the subject of another document currently in preparation but based on the ABD0100.1.2 plus AMD-24C. Integration Impulse events are also a subject for military projects. In the field of military aviation, there are many standards in use at national level, including DEF-STAN 59-411 in the UK, GAM-EG13D in France, JDS-NDS0011B in Japan and a multitude of MIL-STDs from the United States. There are no global standards covering military testing, although the STANAG documents provide a degree of integration amongst NATO member states. A NEMP PULSE TEST INSTALLATIONS – Turnkey solution to RS105. Wide range of antenna sizes and high voltage pulse generators to produce RS105 specified 50 kV/m for almost any EUT size. Sets up in under 4 hours. Excellent field uniformity, reliability, and reproducibility. AVIONICS – Single / Multiple Stroke and Multiple Burst systems. Your complete solution to requirements of DO-160 Section 22, Boeing D6-16050, Airbus AMD07-025, and other manufacturer specs. Call us if you have Section 23 equipment requirements. CONDUCTED SUSCEPTIBILITY – modular system providing complete generator, coupling, calibration, and waveform verification solutions for the voltage spike, rectangular, and damped sine wave requirements of CS106, CS115, & CS116, DO-160 Sections 17 & 19, Airbus AMD 24C, and many more… MIL-STD-461F & DO-160F Pulsed Transient Test Solutions Look to HVT for turn key transient test solutions meeting the latest specifications. User Friendly, Repeatable, and Reliable. Contact us today to add some real firepower to your transient test arsenal. Tel: 703-365-2330 • www.hvtechnologies.com e-mail:emcsales@hvtechnologies.com http://www.hvtechnologies.com/firepower/firepower_ad.html http://www.hvtechnologies.com/firepower/firepower_ad.html
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