LIGHTNING DIRECT EFFECTS TESTING

Our flexible facility boasts a number of bespoke current generators that can be sequenced and adjusted to suit particular test requirements. Large test objects can be accommodated inside the laboratory's light-tight acoustically shielded test chamber.

 

 

 Abank ResistorStack
 Chamber Switch

 

 

 

We can generate the full range of lightning direct effect test current waveforms, and combinations thereof, as defined in EUROCAE ED84-A and SAE ARP 5412. For details, please see the figures and tables below. 

 

 

 

Standard lightning direct-effects test current waveform parameters (reproduced from EUROCAE ED-84A) - see below for key specifications

 

 

Waveform    
Description
Parameters
A

First Return Stroke

Peak Current: 200kA ± 10%
Action Integral: 2MJ/Ω ± 20%
Duration: ≤500μs

B

Intermediate Current

Average Current: 2kA ± 10%
Charge Transfer: 10C ± 10%
Duration: ≤5ms

C

Continuing Current

Average DC Current: 200A-800A
Charge Transfer: 200C± 10%
Duration: 0.25s - 1s

D

Subsequent Return Stroke

Peak Current: 100kA ± 10%
Action Integral: 0.25MJ/Ω ± 20%
Duration: ≤500μs

 

 

 

 

 

 

Examples of measured test waveforms: