28
Rated power frequency
magnetic field
IEC 61000-4-8
30 A/m
50 or 60 Hz
Table 3. Fields near the radio-frequency wireless communication devices
Test frequency
(MHz)
Band
(MHz)
Immunity test level
Professional medical environment
385
380
–
390
Pulse modulation 18 Hz, 27 V/m
450
430
–470
FM, ±5 kHz deviation, 1 kHz sine, 28 V/m
710
704–787
Pulse modulation 217 Hz, 9 V/m
745
780
810
800–960
Pulse modulation 18 Hz, 28 V/m
870
930
1720
1700–1990
Pulse modulation 217 Hz, 28 V/m
1845
1970
2450
2400–2570
Pulse modulation 217 Hz, 28 V/m
5240
5100–5800
Pulse modulation 217 Hz, 9 V/m
5500
5785
Table 4. Input AC power supply ports
Phenomenon
Basic EMC standards
Immunity test level
Professional medical environment
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV
100kHz repetition frequency
Line-to-line surge
IEC 61000-4-5
±0.5 kV, ±1 kV
Line-to-ground surge
IEC 61000-4-5
±0.5 kV, ±1 kV, ±2 kV
Conducted
disturbances induced
by radio-frequency
fields
IEC 61000-4-6
3 V, 0.15
–80 MHz
6 V in ISM bands between 0.15 MHz and 80 MHz
80% AM at 1 kHz
Voltage dips
IEC 61000-4-11
0% U
T
; 0.5 cycle
At 0º, 45º, 90º, 135º, 180º,
225º, 270º, and 315º
0% U
T
; 1 cycle
and
70% U
T
; 25/30 cycles
Single phase: at 0º
Voltage interruptions
IEC 61000-4-11
0% U
T;
250/300 cycles