Figure 1 
Example of test set-up for substitution method - Injection on LV (or HV or AC) lines for ESAs with shielded power supply systems and inverter/charger device (dimensions in millimetres)

    Legend:        
1    ESA    
2    ground plane    
3    low relative permittivity support (er ≤ 1,4); thickness 50 mm    
4    ground straps    
5    LV harness    
6    HV lines (HV+, HV-)    
7    LV load simulator    
8    impedance matching network (optional) (see ISO 11452-1)  
9    LV AN    
10    HV AN  
11    LV supply lines    
12    HV supply lines  
13    LV power supply 12 V / 24 V / 48 V (should be placed on the bench)    
14    additional shielded box       
15    HV power supply (should be shielded if placed inside ALSE)
16    power line filter
17    fibre optic feed through
18    bulk head connector
19    stimulating and monitoring system
20    injection probe
21    high frequency equipment (generator and amplifier)
22    optical fibre
23    50 Ω load
24    AC lines
25    AMN for AC power mains
26    AC charging load simulator
27    AC power mains

 a0c0