ELECTROMAGNETIC COMPATIBILITY (EMC) - LIMITS - SIGNALLING ON LOW-VOLTAGE ELECTRICAL INSTALLATIONS - EMISSION LEVELS, FREQUENCY BANDS AND ELECTROMAGNETIC DISTURBANCE LEVELS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 General
4 Definitions
5 Frequency bands (ITU region 1 only)
6 Transmitter output signal voltage
7 Disturbance and interference limits
8 Test conditions
9 Inadvertent operation
Annexes
A Measurement of output signal levels and conducted
interference levels (3kHz to 30 MHz)
B Basis of the artificial mains network for the measurement
of output signals at frequencies below 9 kHz
Figures
1 Measurement of output levels in the band 3 kHz to 9kHz
(differential mode)
2 Measurement of output levels in the band 3 kHz to 9kHz
(common mode)
3 Measurement of spectral bandwidth
4 Measuring arrangement for equipment whose operation is
dependent on the transmitter being in circuit
5 Artificial mains network 3kHz to 9kHz
6 Idealized equivalent circuit model - DUT port impedance
Tables
1 Limits of mains terminal interference voltage in the
frequency range 0.15 MHz to 30 MHz
2 Limits of radiated interference field strength in the
frequency range 30 MHz to 1000 MHz at a test distance of
10 m
3 Limits of disturbance
Applicable to electrical equipment using signals in the frequency range 3 kHz to 525 kHz for transmission of information on low-voltage electrical installation, either on the public supply system or on customers' premises. Defines frequency bands for different applications (where appropriate) limits for terminal output voltage in the operating band, together with limits for conducted and radiated disturbance. Also describes measurement methods.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 77B |
