Lightning tests in accordance with DO160 G - section 22
Objectives
- Understand and assimilate the nature of direct and indirect effects lightning on aircraft.
- Specify and implement lightning tests on equipment.
- Define and size effective protection against the indirect effects of lightning.
Who should attend
Aeronautical engineers and technicians involved in lightning testing. Project managers and designers of on-board equipment for aircraft.
Prerequisites
Hold an engineering or technician diploma (or equivalent) in the following fields: electrical/ electronic/electrotechnical.
Technical and teaching resources
Presentation aids for lectures, case, demonstration models, test equipment for practical training courses
Sanction of training
Certificate of completion
Methods of assessment
QUIZ evaluation questionnaire
Presentation
The electrical and electronic equipment used civil and military aeronautics is subject to severe constraints due to the effects of lightning. The concept of the "more electric" aircraft and the massive use of composite structures mean that new reflexes need to be adopted in the design of protection systems.
The aim of this course is to illustrate the changes and guide you step by step through four stages:
- Understanding lightning phenomena, couplings and effects (direct and indirect),
- The global presentation of regulatory requirements linked to certification, and how they are taken into account in standards,
- Test implementation,
- Protection sizing and design rules.
This course includes an experimental part, with a laboratory setting to enable direct confrontation with the problem for a better understanding.
Program
1 - Describe the lightning environment and its effects on aircraft
The thunderstorm phenomenon - Analysis a lightning strike sequence - The quantities and levels associated with the lightning phenomenon (ARP 5412) - The risk of lightning strikes - Direct and indirect effects of lightning on an aircraft - Lightning coupling in an aircraft (coupling in the structure and in the cables) - The consequences of using composite material structures
2 - Taking regulatory and standard requirements into account
- Overview of regulatory requirements (FAR, JAR, CS ...) -Environmental specifications and key documents for a QTP
3 - Implementing tests
Overview of direct lightning tests (DO 160 section 23, ARP 5416,...) - Indirect effects (DO 160 G section 22 ) : Standardized wave and what they represent; Sequences: Single/Multiple stroke and Multiple burst; Different types of tests: Pin injection / Cable Bundle injection; Applicable waveforms and associated levels; Test methods; New features of the DO 160 G and future DO-160 H indirect lightning (Airbus ABD, Boeing D6-16050, Airbus Helicopter SPX902...).
4 - Mastering protection sizing and design rules
Protection technologies - Sizing and installing lightning protection: Methods; Criteria; Pitfalls to avoid - Setting the scene (pin-to-case lightning)