1 Scope
This standard specifies the electromagnetic compatibility (EMC) test methods for the performance criteria, disturbance and immunity during the on-site testing of equipment installation.
This standard is applicable to the equipment whose electromagnetic compatibility must be measured in the place of equipment installation due to inconvenient transportation or specific environmental requirements.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. When this standard is published, the editions indicated are valid. All standards are subject to revision, and parties to agreements based on this code are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB 4824 Limits and methods of measurement of electromagnetic disturbance characteristics of industrial scientific and medical (ISM) radio frequency equipment
GB 9254 Information Technology Equipment-Radio Disturbance Characteristics-Limits and Methods of Measurement
GB/T 6113.1 Specifications for Radio Disturbance and Immunity Measuring Apparatus
GB/T 17626.2 Electromagnetic Compatibility (EMC)-Testing and Measurement Techniques-Electrostatic Discharge Immunity Test
GB/T 1762613 Electromagnetic Compatibility-Testing and Measurement Techniques-Radiated Radio-frequency Electromagnetic Field Immunity Test
GB/T 17626.4 Electromagnetic Compatibility-Testing and Measurement Techniques-Electrical Fast Transient/Burst Immunity Test
GB/T 17626.5 "Electromagnetic Compatibility-Testing and Measurement Techniques-Surge (Impact) Immunity Test"
GB/T 17626.6 Electromagnetic compatibility-Testing and measurement techniques-Immunity to conducted disturbances, induced by radio-frequency fields
GB/T 17626.8 "Electromagnetic Compatibility-Testing and Measurement Techniques-Power Frequency Magnetic Field Immunity Test"
GB/T 17626.11 "Electromagnetic Compatibility-Testing and Measurement Techniques-Voltage Dips,Short Interruptions and Voltage Variations Immunity Tests"
GB/T 17799.2 Electromagnetic Compatibility-Generic Standards--Immunity for Industrial Environments
IEC 61000-6-4 Electromagnetic Compatibility-Generic Standards-Disturbance Test for Industrial Environments
GB/T 17618 Information Technology Equipment-Immunity Characteristics-Limits and Methods of Measurement
3 Definitions and Abbreviations
3.1 Definitions
For the purpose of this standard, the following definitions apply.
3.1.1 Port
It refers to a particular interface between the specified equipment and the external electromagnetic environment.
3.1.2 Enclosure port
It refers to the physical boundary through which the electromagnetic field may radiate or irradiate.
3.1.3 Cable port
It refers to a port of the equipment, which is use for connecting with cables or wires, such as signal, control and power port.
3.1.4 Functional Earth port
It refers to an earth cable port other than signal, control and power port, which is connected to earth but not for the electrical safety.
3.1.5 Signal port
It refers to a port on conductor or cable, which is connected with instruments and intended for information loading and data transmission, such as data buses, communication networks, control network, etc.
3.1.6 Power port It refers to a port on conductor or cable, which is intended for loading primary electrical power for the normal operation (functioning) of instruments.
3.1.7 Comparison Signal Source (CSS) It is designed to verify the on-site characteristic of radiated emission test device and/or to quantify the antenna location for radiated emission testing. Other devices alike include: Comparison Noise Emitter (CNE), Comparison Signal Emitter (CSE), Emissions Reference Source (ERS), Emissions Reference Generator (ERG) and Reference Signal Generator (RSG). The CSS outputting comb frequency signals shall be adopted for on-site activities where the on-site ambient noise is high as it is easier to distinguish between its signal and noise signal.
3.1.8 Electromagnetic compatibility (EMC)
It refers to the ability of equipment or systems to normally operate in their electromagnetic environment without introducing unacceptable electromagnetic disturbances to the normal operation of anything in the environment, or without being disturbed by the radiated emission or conducted emission in the environment.
