Page 144 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

C.7.6 Generation of the requisite field strength
C.7.6.1 Test method

C.7.6.1.1 Stripline test

According to ISO 11452-5.
C.7.6.1.2 BCI test

According to ISO 11452-4.

C.7.6.1.3 TEM cel test
According to ISO 11452-3.

C.7.6.1.4 Absorber line Chamber test
According to ISO 11452-2.

C.7.6.2 Characteristics of the test signal to be generated

C.7.6.2.1 Peak value of the modulated test field strength
The peak value of the modulated test field strength shall correspond to that of the

unmodulated test current or field strength, the actual value in mAmps or in volts/m
of which is defined in C.1.2.7.2.
C.7.6.2.2 Test signal waveform

The test signal shall be a radio-frequency sinusoidal wave, amplitude-modulated by
a sinusoidal 1 kHz wave at a modulation rate m of 0,8 ± 0,04.

C.7.6.2.3 Modulation rate
The modulation rate m is defined as follows:

m ≥ NUM > peak envelope value -minimum envelope value > DEN > peak envelope
value + minimum envelope value The envelope describes the curve formed by the

edges of the modulated carrier as seen on an oscillograph.
C.7.7 Inspection and monitoring equipment

For the purposes of monitoring the external part of the EPAC and of determining
whether the conditions laid down in C.4.6.2.2 have been met, use will be made of a
video camera or cameras.

C.8 ESD test

ESD test shall be performed according to EN 61000-4-2 at 4 kV for contact discharge
and 8 kV for air discharge with immunity criteria B.

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