GB/T 39237-2020 in English

VALID

Technical requirements for application of LED nightscape lighting

Issued on:2020-11-19
Implemented on:2021-06-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $430.00
$418.00

Standard No:	GB/T 39237-2020
Document status:	VALID
Title in English:	Technical requirements for application of LED nightscape lighting
Title in Chinese:	LED夜景照明应用技术要求
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2020-11-19
Implemented on:	2021-06-01
ICS Classification:	91.160.20-Exterior building lighting
Chinese Classification:	P32-Building construction and decoration engineering
Professional Classification:	GB-National Standard
Related Keywords:	key technical indicators indicator category functional lighting requirements landscape technical requirements led night scene lighting energy efficiency requirements energy efficiency management requirements
Related Topics:	Application Technology led Technical Application Proof tin in the middle of the night GBT39237 GB/T 39237-2020

《GB/T 39237-2020LED夜景照明应用技术要求》由TC452（全国建筑节能标准化技术委员会）归口，主管部门为住房和城乡建设部。

Introduction

Interpretation of the core content of the standard

As my country's first national standard specifically for LED night scene lighting, this standard has established a complete technical system from lamp classification, performance indicators to system integration. For the first time, the standard differentiates the requirements for functional lighting and landscape lighting, and innovatively introduces advanced concepts such as dynamic dimming and energy efficiency grading.

Comparison of key technical indicators

Indicator category	Functional lighting requirements	Landscape lighting requirements	Test method
Luminous flux maintenance rate	3000h≥96%	3000h≥92%	GB/T 7921
Chroma deviation	Δuv≤0.0055	Δuv≤0.007	CIE1976 standard
Dimming range	20%-100%	0%-100%	Actual measurement

Key points for the implementation of key clauses

1. Luminaire safety requirements

Article 6.1.3 of the standard stipulates the classification of protection levels: outdoor lamps must reach IP54 or above, underground lamps require IP67, and paddling pool areas must meet IPX8. Special attention should be paid during implementation:

The anti-corrosion level should be improved in coastal areas
Anti-electric shock protection should be increased in crowded places
Isolation devices should be installed for high-temperature components

2. Energy efficiency management requirements

Article 6.6 of the standard formulates energy efficiency ladder indicators according to the type of lamps. Taking LED garden lights as an example:

Color temperature range	AC power supply (lm/W)	DC power supply (lm/W)
<3000K	80	90
3000-4000K	85	95

Analysis of Standard Evolution

Compared with previous standards, the main breakthroughs of GB/T 39237-2020 are:

Life cycle indicators: New durability parameters such as lumen maintenance rate and color drift
Intelligent control system: The application of protocols such as DMX512 and RDM is regulated for the first time
Ecological protection requirements: Introduce E0-E4 environmental zoning to limit the upward luminous flux ratio

Project implementation suggestions

Suggestions on typical problems in standard implementation:

Design stage: Perform environmental brightness zoning according to Appendix C and strictly control glare values
Selection stage: Prioritize floodlights that meet the energy efficiency requirements of Table 16
Acceptance stage: Focus on testing 6.4.3 color coordinate deviation and 7.3.8 current stability