GB/T 38539-2020 PDF in English
GB/T 38539-2020 (GB/T38539-2020, GBT 38539-2020, GBT38539-2020)
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Technical requirements for application of LED sports lighting
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Standards related to (historical): GB/T 38539-2020
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GB/T 38539-2020: PDF in English (GBT 38539-2020) GB/T 38539-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.160.01
P 31
Technical requirements for application of LED sports
lighting
ISSUED ON: MARCH 06, 2020
IMPLEMENTED ON: OCTOBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 General requirements ... 9
5 Specification classification requirements ... 9
6 Luminaire performance requirements ... 12
7 Driver performance requirements ... 17
8 Lighting control system performance requirements ... 19
Annex A (normative) Maintenance factor of luminaires ... 22
Annex B (normative) Requirements for lighting during UHDTV relay ... 24
Annex C (informative) Light distribution classification of luminaires ... 26
Annex D (informative) Projection distance recommendations for projectors .. 28
Annex E (normative) Calculation of chromaticity tolerances ... 29
Annex F (normative) Calculation and measurement of percent flicker ... 30
Annex G (informative) Intelligent lighting control system architecture for sports
venues ... 32
Annex H (informative) Communication protocol and configuration of intelligent
lighting control system for sports venues ... 33
Technical requirements for application of LED sports
lighting
1 Scope
This Standard specifies terms and definitions, general requirements,
specification classification requirements and performance requirements for
luminaires, driving power supplies and lighting control systems of LED for
stadium sports lighting.
This Standard is applicable to LED luminaires, driver and lighting control system
as well as their applications for stadium and auditorium lighting.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 7000.1, Luminaires - Part 1: General requirements and tests
GB 7000.7, Safety requirements for floodlights
GB 7000.218, Luminaires - Part 2-18: Particular requirements - Luminaries
for swimming pools and similar application
GB/T 7921-2008, Uniform color space and color difference formula
GB/T 9254, Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement
GB 17625.1-2012, Electromagnetic compatibility - Limits - Limits for
harmonic current emissions (equipment input current ≤16 A per phase)
GB/T 17626.5-2019, Electromagnetic compatibility - Testing and
measurement techniques - Surge immunity test
GB/T 17743, Limits and methods of measurement of radio disturbance
characteristics of electrical lighting and similar equipment
GB/T 18595, Equipment for general lighting purposes - EMC immunity
a visual phenomenon that causes uncomfortable feeling or reduces the ability
to observe details or objects due to the inappropriate brightness distribution or
brightness range in the field of view, or the existence of extreme contrast\
[JGJ/T 119-2008, definition 2.2.17]
3.6 colour rendering index
measurement of light source color rendering, expressed by the degree of
agreement between the color of the object under the measured light source and
the color of the object under the reference light source
[JGJ/T 119-2008, definition 2.3.28]
3.6.1 general colour rendering index; Ra
the average value of the color rendering index of the light source to the 1st ~ 8th
standard color samples specified by the International Commission on
Illumination (CIE)
3.6.2 special colour rendering index; Ri
the color rendering index of the light source for the 9th ~ 15th standard color
samples selected by the International Commission of Illumination (CIE)
NOTE: In this Standard, R9 refers to the color rendering index of the light source for the 9th
standard color sample selected by the International Commission on Illumination (CIE).
3.7 colour temperature
when the chromaticity of the light source is the same as the chromaticity of a
black body at a certain temperature, the absolute temperature of the black body
is the color temperature of the light source; color temperature is used to express
how warm (red) or cold (blue) a kind of lighting feels or the apparent feeling
[JGJ/T 119-2008, definition 2.3.21]
3.8 correlated colour temperature
when the chromaticity point of the light source is not on the black body locus,
and the chromaticity of the light source is close to the chromaticity of the
blackbody at a certain temperature, the absolute temperature of the blackbody
is the correlated color temperature of the light source
[JGJ/T 119-2008, definition 2.3.22]
3.9 chromaticity tolerances
characterize the deviation of each light source in a batch of light sources from
lower than 70% of the initial luminous flux or cannot be used normally TO the
installed quantity of this model of luminaires after installation and use
3.17 harmonic wave
the component whose number of times is greater than the fundamental
frequency in the Fourier series decomposition of a periodic non-sinusoidal
electricity in the power supply system
3.18 total harmonic distortion of voltage
the ratio of the effective value of all harmonic components of the voltage TO the
effective value of the fundamental component
3.19 total harmonic distortion of current
the ratio of the effective value of all harmonic components of the current TO the
effective value of the fundamental component
3.20 overshoot amplitude
the maximum instantaneous amplitude of the output voltage or current
exceeding the nominal value
NOTE: Overshoot refers to the phenomenon that the output DC voltage or current exceeds
the nominal value caused by the instantaneous change of a certain influence.
3.21 differential mode voltage
the voltage between any two of a set of specified live conductors
3.22 common mode voltage
the average value of the phase voltage between each conductor and a specified
reference point (usually ground or chassis)
3.23 failure rate of driver
proportion of failure of driver after 1000h
3.24 smart lighting control system
a control system that uses computer, network communication, automatic control
and other technologies, by analyzing and processing environmental information
and user needs, to implement specific control strategies, so as to perform
overall control and management of the lighting system to achieve the desired
lighting effect
NOTE: It is usually composed of control and management equipment, input equipment,
b) The driver for indoor lighting (including adapted lightning protection
device), under the experimental conditions of differential mode voltage of
1kV and common mode voltage of 2kV, shall be able to meet the
requirements of category b) products specified in GB/T 17626.5-2019.
7.4 Durability
7.4.1 When the maximum temperature of the housing does not exceed 75°C,
the life of the driver for LED lighting shall not be less than 50000h.
7.4.2 Under the working conditions specified in 7.1.2, the failure rate of driver
for LED lighting shall not exceed 0.5%.
7.4.3 The product shall be able to work normally after 500h durability test at
high temperature (85°C).
8 Lighting control system performance requirements
8.1 Basic requirements
8.1.1 It shall be able to perform single luminaire, group or zone control of lighting
fixtures according to functional requirements.
8.1.2 There shall be an open communication interface and protocol.
8.1.3 It shall be able to achieve control functions through data collection and
analysis, automatic function presets, in accordance with the following
regulations:
a) It shall be able to realize switch control according to the requirements;
b) In places where dimming is required, the illuminance (brightness) shall be
adjusted according to the set value;
c) In places where scene switching is required, the set scene mode shall be
able to be switched according to the stated requirements, and on-site
adjustments shall be possible.
8.1.4 When the control system fails, it shall be able to automatically send out
audible and visual alarm signals, and meet the following requirements:
a) It shall support the offline alarm of the control module and the gateway
module AND the feedback of the inconsistent control and status;
b) When a communication failure occurs, the system input and output
equipment shall be able to operate according to the preset program;
systems.
8.2.3 LED luminaires for natural lighting shall be equipped with a smart sensor
or an external sensor control interface that automatically adjusts the illuminance
according to natural light changes.
8.2.4 The LED venue lighting control system shall determine the network
structure of the control system according to the scale and needs of the
competition venue. And through the network integrated equipment
management system, it can collect and control the lighting operating status.
8.2.5 The architecture of the LED intelligent lighting control system shall refer
to Annex G to determine. The communication protocol and system configuration
shall refer to Annex H to determine.
8.3 Dimming requirements
8.3.1 When the control system is used for TV relay lighting, it is not advisable
to use dimming method for lighting scene changes. When using the dimming
method, the following requirements shall be met:
a) The upper limit of the luminous flux of the light source shall not be higher
than the rated luminous flux;
b) When adjusting the brightness or illuminance, the color temperature
deviation shall not exceed 200K;
c) The dimming shall meet the requirements for the stroboscopic limit;
d) The dimming shall be realized by adjusting the output current value.
8.3.2 It shall meet linear dimming requirements. The deviation of the actual
luminous flux output from the set value shall not exceed 10%.
8.3.3 The harmonic interference of dimming equipment to the power distribution
system shall be restricted and comply with relevant standards.
B.2 Camera glare and flicker requirements
B.2.1 Avoid direct glare from luminaires and reflected glare from glossy
surfaces into the camera lens.
B.2.2 The maximum glare index (GR) of all cameras shall not be greater than
40.
B.2.3 For super slow-motion playback, it shall be ensured that there is no flicker
phenomenon at least at 600fps.
B.3 Requirements for uniformity gradient of fixed camera and super slow-
motion playback vertical illumination
B.3.1 When the illuminance calculation and measurement grid is less than 5m,
it shall not be greater than 10% per 2m.
B.3.2 When the illuminance calculation and measurement grid is not less than
5m, it shall not be greater than 20% per 4m.
B.3.3 The coefficient of deviation (CV) shall not be greater than 0.13.
NOTE: CV is the ratio of the standard deviation of the illuminance value at all test points to
its average value.
B.4 Other requirements
B.4.1 The lighting level of the standby lighting shall not be lower than 50% of
the normal lighting. It shall be evenly distributed throughout the field.
B.4.2 For flying competitions, lighting of flight path and target shall be provided.
B.4.3 Field lighting shall avoid direct glare and the effects of reflected glare on
athletes from ice, water, snow and polished ground.
B.4.4 When indoor venues use large-area decorative lighting or decorative
lighting as the dominant light source, the competition light source shall not adopt
the basic colors of red, green and blue (RGB).
B.4.5 Outdoor venues shall be supplemented with lighting for shadow
boundaries and shadow areas near the finish line. Its correlated color
temperature shall match daylight.
B.4.6 Display lighting shall not interfere with TV relay lighting. If it is affected, it
shall be off during the broadcast of the game.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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