YD/T 983-2013 (YD/T 983-2018 Newer Version) PDF English
YD/T 983-2013 (YD/T983-2013, YDT 983-2013, YDT983-2013)
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Limits and methods of measurement of electromagnetic compatibility of telecommunication power supply equipment
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Limits and methods of measurement of electromagnetic compatibility of telecommunicatin power supply equipment
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Newer version: YD/T 983-2018 Standards related to (historical): YD/T 983-2018
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YD/T 983-2013: PDF in English (YDT 983-2013) YD/T 983-2013
YD
TELECOMMUNICATION INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 33.100
L 06
Replacing YD/T 983-1998
Limits and methods of measurement of
electromagnetic compatibility of
telecommunication power supply equipment
ISSUED ON. APRIL 25, 2013
IMPLEMENTED ON. JUNE 1, 2013
Issued by. Ministry of Industry and Information Technology of the PRC
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope .. 4
2 Normative references ... 4
3 Terms, definitions and abbreviations ... 5
3.1 Terms and definitions .. 5
3.2 Abbreviations ... 6
4 Test conditions .. 7
4.1 General conditions ... 7
4.2 Test layouts ... 8
5 Performance evaluation methods ... 10
5.1 General ... 10
5.2 Methods applicable for the evaluation of ancillary equipment .. 10
6 Performance criteria ... 11
6.1 Determination criterion A ... 11
6.2 Determination criterion B ... 11
6.3 Determination criterion C ... 11
6.4 Special determination criteria ... 11
7 Applicability .. 12
7.1 Disturbance measurement ... 12
7.2 Immunity test ... 12
8 Disturbance measurement methods and limits ... 14
8.1 Conducted disturbance ... 14
8.2 Radiation disturbance .. 14
8.3 Harmonic current (AC power supply input port) ... 14
8.4 Voltage fluctuation and flicker (AC power supply input port) ... 14
9 Immunity test methods and levels ... 15
9.1 Telecommunication centers .. 15
9.2 Other-than-telecommunication centers .. 17
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard is developed and mainly referenced to GB 9254 “Limits and methods of
measurement of radio interference characteristics of information technology
equipment”, GB/T 17618 “Information technology equipment - Immunity characteristics
- Limits and methods of measurement”, GB 19286 “Electromagnetic compatibility
requirement and measurement methods for telecommunication network equipment”.
This Standard replaces YD/T 983-1998 “Limits and methods of measurement of
electromagnetic compatibility for telecommunication Power supply equipment” from
the date of implementation.
Compare with YD/T 983-1998, the main changes of this Standard are as follows.
- SPECIFY that the telecommunication power supply equipment in this Standard
does not include UPS (see Clause 1);
- ADD the frequency range of 1 GHz ~ 6 GHz for radiation disturbance test (see
8.2).
- MODIFY the classification and limits of harmonic current equipment (see 8.3);
- EXPAND the frequency range of radiated, radio-frequency, electromagnetic field
immunity to 2.7 GHz (see Clause 9);
- SPECIFY the immunity level of telecommunication power supply equipment in
telecommunication centers and other-than-telecommunication centers (see
Clause 9).
Attention is drawn to the possibility that some of the contents of this document may be
the subject of patent rights. The issuing agency of this document shall not be held
responsible for identifying any or all of such patent rights.
This Standard was proposed by and shall be under the jurisdiction of China
Communications Standards Association.
This Standard is drafted by Telecommunication Research Institute of the Ministry of
Industry and Information Technology of the People’s Republic of China.
Main drafters of this Standard. Tang Weisheng, Zhou Yi, Zhang Yunzhuan, Lu
Bingsong.
This Standard was first issued on October 28, 1998. This is the first revision.
Limits and methods of measurement of
electromagnetic compatibility of
telecommunication power supply equipment
1 Scope
This Standard specifies the electromagnetic compatibility requirements for
telecommunication power supply equipment (hereinafter referred to as TPE, excluding
UPS, generator and battery), including limits, performance criteria and measurement
methods, etc.
This Standard applies to the power supply equipment for telecommunication switching
equipment, telecommunication transmission equipment and wireless communication
equipment.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the dated edition cited applies. For undated
references, the latest edition of the referenced document (including all amendments)
applies.
GB 9254 Limits and methods of measurement of radio interference characteristics
of information technology equipment
GB 17625.1 Electromagnetic compatibility - Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per phase)
GB 17625.2 Electromagnetic compatibility (EMC) - Limits - Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems, for
equipment with rated current ≤16 A per phase and not subject to conditional
connection
GB/T 17626.2 Electromagnetic compatibility (EMC) - Testing and measurement
techniques - Electrostatic discharge immunity test
GB/T 17626.3 Electromagnetic compatibility - Testing and measurement techniques
- Radiated, radio-frequency, electromagnetic field immunity test
GB/T 17626.4 Electromagnetic compatibility - Testing and measurement techniques
EMC ElectroMagnetic Compatibility
EUT Equipment Under Test
TPE Telecommunication Power Supply Equipment
UPS Uninterrupted Power Supply
4 Test conditions
4.1 General conditions
The TPE shall be tested under normal test conditions. The test conditions shall be
recorded in the report.
Regardless whether the TPE requires special software or test fixtures to connect to
the host equipment, the test layout shall be as close to the normal or typical actual
operation state as possible.
The test conditions of the TPE shall be as close to the actual installation conditions as
possible, and the wiring shall be consistent with the actual process. If the TPE is to be
installed in a rack or an enclosure as specified by the manufacturer, unless otherwise
stated, the TPE shall be installed according to the method stated in the instructions or
the installation manual.
If the equipment is part of the system or is connected to the ancillary equipment, the
equipment shall be connected to the ancillary equipment of the minimum typical
configuration during the test, however, the port connected to the ancillary equipment
shall be activated.
If the equipment has a large number of ports, it shall select a sufficient number of ports
to ensure that the actual situation can be simulated and that different types of ports
can be tested.
If the TPE consists of multiple telecommunication power supply modules, each
telecommunication power supply module shall be tested.
Measures shall be taken to avoid the effects of immunity test signals on the measuring
equipment and test ancillary equipment (e.g. signal sources, ancillary equipment, etc.)
located inside/outside the test environment. Measures shall be taken to avoid the
effects of auxiliary test equipment located inside/outside the test environment on the
test result.
During the test, the mode of operation and configuration shall be accurately recorded
in the test report.
Unless otherwise specified in the product instructions, the TPE shall be connected to
the resistive load.
The signal or control port shall be properly connected with the necessary AE or nominal
resistance.
The test shall be carried out under the condition of inputting the nominal voltage to the
input port.
4.2.2 Immunity test conditions and layouts
All tests shall be carried out under normal installation conditions of the TPE. The
distribution of power supply lines and signal lines, grounding, interconnection of cables
and the physical layout of the test system shall simulate typical and actual application
state and shall comply with the product instructions.
For the TPE subjected to the immunity test, it shall be powered on and working in
normal mode. The test shall be carried out under conditions such as specified
configuration, typical load configuration (including hardware, software and operating
procedures) and full operation.
It shall choose a configuration that minimizes the immunity. It shall consider the
possible layouts within the range of normal use.
The test shall be carried out under the condition of inputting the nominal voltage to the
input port.
Unless otherwise specified in the product instructions, the TPE shall be connected to
the resistive load.
The signal or control port shall be properly connected with the necessary AE or nominal
resistance.
During the test, the TPE may operate at a state of small output power (50 % of output
power is recommended). The actual output power of the TPE in the test shall be stated
in the test report.
The immunity to conducted disturbances test shall be carried out on the power supply
input port, power supply output port, and one port of each type of control ports on the
TPE.
Power supply lines and control line of not more than 3 m (according to the product
instructions) require no immunity test. However, the cables connected to the external
network shall be tested.
Internal connection cables between units on the same TPE need not be tested.
To test the TPE's ability to withstand malfunctions and damage to work, the design
6 Performance criteria
The TPE port being monitored during the test may be divided into the following
categories.
a) Grade 2 power supply DC port. refers to the DC uninterruptible power supply port
(basic power supply DC port).
b) Grade 2 power supply AC port. refers to the AC uninterruptible power supply port
(basic power supply AC port).
c) Grade 3 power supply port. refers to the power supply device port (rack power
supply port) in the telecommunication equipment.
d) Control signal interface
6.1 Determination criterion A
a) During the EMC test of the equipment, the TPE output voltage shall be within the
normal working range.
b) During and after the test of the equipment, the TPE shall operate normally, and
there shall be no alarm, false alarm indication (power failure, protective failure,
etc.) or error display indication.
6.2 Determination criterion B
a) After the equipment is tested, the TPE shall work normally, and the output voltage
shall immediately be within the normal working range.
b) After the equipment is tested, the TPE shall work normally, and there shall be no
alarm, false alarm indication (power failure, protective failure, etc.) or error
display indication.
6.3 Determination criterion C
The equipment allows loss of monitoring and alarm functions, however, after the
equipment is tested, all functions shall be back to normal, and the output voltage shall
be within the normal working range.
6.4 Special determination criteria
Special determination criteria are applicable for the Grade 2 DC output port and Grade
2 AC output port.
6.4.1 Grade 2 DC output port
Immunity to conducted
disturbances, induced by radio-
frequency fields
9.2.5.2
8 Disturbance measurement methods and limits
8.1 Conducted disturbance
8.1.1 Signal line port
Measurement methods and limits are in accordance with the provisions of GB 9254.
8.1.2 Power supply port
Measurement methods and limits are in accordance with the provisions of GB 9254.
8.2 Radiation disturbance
Measurement methods and limits are in accordance with the provisions of GB 9254.
8.3 Harmonic current (AC power supply input port)
8.3.1 Measurement methods
For equipment with input current ≤ 16 A per phase, measure according to GB 17625.1.
For equip...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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