Page 135 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

type-approval is to be measured in accordance with the method described in C.6.
C.1.2.6.2 ESA narrow-band reference limits

C.1.2.6.2.1 If measurements are taken using the method described in C.6, in respect
of ESA antenna distance of (1,0 ± 0,05) m, the radiation reference limit will be 54-44

dB (microvolts/m) in the 30-75 MHz frequency band, this limit decreasing by the
frequency logarithm, and 44-55 dB (microvolts/m) in the 75400 MHz band, this limit
increasing by the frequency logarithm.

In the 400-1 000 MHz frequency band the limit remains constant at 55 dB (560
microvolts/m).

C.1.2.6.2.2 The measured values for the ESA submitted for competent type-approval,
expressed in dB (microvolts/m), shall be at 2 dB below the reference limits.
For conformity of production testing do not remove the 2 dB from the reference

limit.
C.1.2.7 Requirements concerning ESA immunity to electromagnetic radiation

C.1.2.7.1 Method of measurement
The immunity to electromagnetic radiation of the ESA submitted for component

type approval will be tested by means of one of the methods described in C.7.
C.1.2.7.2 ESA immunity reference limits

C.1.2.7.2.1 If measurements are taken using the methods described in C.7, the
immunity test reference levels will be 48 volts/m for the 150 mm stripline testing
method, 12 volts/m for the 800 mm stripline testing method, 60 volts/m for the

TEM cell testing method, 48 mA for the Bulk Current Injection (BCI) testing method
and 24 volts/m for the Absorber lined Chamber testing method.

C.1.2.7.2.2 The ESAs representative of the type submitted for testing may not
exhibit any malfunction which is able to cause any degradation on the direct control
of the EPAC perceptible to the driver or other road user if the EPAC is in the state
defined in Figure C.1 at a field strength or current expressed in appropriate linear

units 25 % above the reference limit.
C.2 Method of measuring broad-band electromagnetic radiation from EPA

C.2.1 Measuring equipment
A quasi-peak detector shall be used to measure broad-band electromagnetic
radiation.

Receivers with quasi-peak detectors shall be in accordance with EN 55016-1-1:2010,
Clause 4.
For time efficiency it is possible to use a peak detector. Any peak measurements
with results at or above the quasi-peak limit shall be re-measured using the

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