The Energy Efficiency Standards and Marking Methods of the Energy Conservation Label for Fixtures of Roadway Lighting was announced on November 30, 2017 and became effective on August 1, 2018
Energy Efficiency Standards and Marking Methods of the Energy Conservation Label for Fixtures of Roadway Lighting was announced with document number Neng-ji-zi No. 10605019340 on November 30, 2017 and became effective on August 1, 2018.
I. The applicable scope, energy efficiency test conditions and methods and energy efficiency value for certification of the energy conservation label for fixtures of roadway lighting should comply with the following regulations:
(1) Applicable scope:
Fixtures of roadway lighting that comply with the National Standards of the Republic of China (CNS): CNS 9118 “Fixtures of roadway lighting” or CNS 15233 “Fixtures of roadway lighting with light emitting diode lamps”
(2) Energy efficiency test conditions and methods:
The equipment used for testing the luminous efficacy of fixtures of roadway lighting is a goniophotometer. The test conditions and methods should comply with the International Commission on Illumination (CIE) standards: CIE 70. The spacing between test angles for candlepower distribution curve measurement should be below 2.5°. The luminous efficacy (lm/W) of fixtures of roadway lighting is calculated as follows: total output light intensity (lm) of fixtures divided by total input power (W) of fixtures.
(3) Energy efficiency standards for fixtures of roadway lighting:
1. The energy efficiency of fixtures of roadway lighting should comply with the following standards:
(1) The energy efficiency and specifications of fixtures of roadway lighting with light emitting diode (LED) lamps should comply with the following standards:
Classification of lighting fixtures | Standards |
Standards | Classification of color temperatureRemarks 1 | Initial luminous efficacy Remarks 2 (lm/W) | Lumen maintenance Remarks 3 (3,000 hours) | Others |
Full power | High color temperature | ≧140 | Must not be less than 95.0% | Power factor≧0.90; dustproof and waterproofRemarks 4:IP65 or IP66; uniformityRemarks 5≧0.33 simulated average illuminance≧7.0 lx |
Medium color temperature |
Low color temperature |
Remarks 1: The classification of color temperature is performed in accordance with CNS 15233.
Remarks 2: The initial luminous efficacy refers to the luminous efficacy value obtained after lighting fixtures are aged 1,000 hours.
Remarks 3: The lumen maintenance test is conducted in accordance with Section 6.10 of CNS 15233.
Remarks 4: The samples for dustproof and waterproof tests must be the same.
Remarks 5: Simulated illuminance uniformity = simulated minimum illuminance/simulated average illuminance.
(2) The energy efficiency and specifications of gas-discharge fixtures of roadway lighting should comply with the following standards:
Classification of lighting fixtures | Standards |
Power of lighting fixturesRemarks 1 | Classification of color temperature | Initial luminous efficacyRemarks 2 (lm/W) | Lumen maintenanceRemarks 3 (3,000 hours) | Others |
Full power | >3,500K | ≧85 | Must not be less than 85.0% | Power factor≧0.90; dustproof and waterproofRemarks 4:IP65 or IP66; simulated illuminance uniformityRemarks 5≧0.33 simulated average illuminance≧7.0 lx |
<3,500K | ≧90 |
Remarks 1: Power of lighting fixtures = power of light bulbs + power consumption of ballasts
Remarks 2: The initial luminous efficacy refers to the luminous efficacy value obtained after lighting fixtures are aged 100 hours.
Remarks 3: During the lumen maintenance test, gas-discharge lighting fixtures should be kept turning on under normal conditions after being aged. Measure their luminous lux using the equipment for candlepower distribution curve measurement after 3,000 hours (excluding the 100-hour aging time).
Remarks 4: The samples for dustproof and waterproof tests must be the same.
Remarks 5: Simulated illuminance uniformity = simulated minimum illuminance/simulated average illuminance
2. The simulation of the aforementioned illuminance uniformity should be conducted in accordance with the following methods:
(1) The simulation of illuminance uniformity should be conducted using DIALux 4.8 software or above. Import the file with the filename extension: IES obtained from the test using a goniophotometer into the DIALux software to simulate the illuminance distribution of lighting fixtures when they are used on roadways.
(2) The simulation of illuminance uniformity should be conducted by a testing agency after examining lighting fixtures. The simulation results should be attached to the examination report on the lighting fixtures, along with the IES file on the lighting fixtures, for verification.
(3) The report should show the following information: project date, list of lighting fixtures, photometric test results, illuminance curve data, iso-illuminance figures (illuminance), and parameter setting. It must also include simulated average illuminance and simulated illuminance uniformity values.
(4) In the report, simulation results of at least one set of parameters must comply with those of illuminance uniformity specified in the standards. The simulation report is as shown in Table 1.
Table 1. Roadway simulation report summary
Models of lighting fixtures
Rated luminous flux (lm)
Height of poles (Road condition I) (Road condition II) (Road condition …)
Roadway width
Spacing between poles
Ratio of spacing between poles to height of poles
Inclination of lighting fixtures
Simulated average illuminance (lx)
Simulated illuminance uniformity
Remarks 1: Applicable road conditions and lighting effects can be listed item by item based on the simulation results.
Remarks 2: Rounding to the first decimal point is adopted for calculation of simulated average illuminance.
Remarks 3: Simulated illuminance uniformity = simulated minimum illuminance/simulated average illuminance (Rounding to the second decimal point is adopted for calculation of simulated illuminance uniformity; rounding to the first decimal point is adopted for calculation of simulated minimum illuminance.)
(5) Simulated establishment parameters are as shown in Table 2.
Table 2. Conditions of simulated establishment parameters in the roadway simulation report
Rated luminous flux (lm) Maximum installation height of lighting fixtures (meter) Roadway width (meter) Spacing between two poles (___ times the height of poles)
< 4,500 4 4 4.5
4,501~9,000 5 5 4.5
5 6
6 5
6 6
9,001~13,500 7 7 4.5
7 8
8 7
8 8
> 13,501 9 9 4.5
9 10
10 9
10 10
(a) Maintenance coefficient of LED lighting fixtures: 0.7
(b) Maintenance coefficient of gas-discharge lighting fixtures: 0.6
(c) Number of lanes: 2
(d) Overlay: R3
(e) Uniformity and moisture content of asphalt mixtures of road pavements: W3
(f) Average age of observers: 23
(g) Type of illuminance: ME4a
(h) Grid point: 20x12
(i) Distance to working surface: the same as the installation height of lighting fixtures
(j) Number of lighting fixtures installed on each light pole: 1
(k) Longitudinal displacement: 0 meters
(l) Spacing between a light pole and a road: 0.5 meters
(m) Spacing between a light pole and a lighting fixture: 2 meters
(n) The way in which lighting fixtures are arranged: one-sided
(o) Inclination of lighting fixtures: angles customized by manufacturers (≦ 15°)
(p) The spacing between the installation height of lighting fixtures and two poles should be set as 1:4.5. The installation height of lighting fixtures can be increased at one’s discretion, but it has to be an integer, such as 8m, 9m, 10m, etc. The spacing between two light poles should be adjusted to 36m, 40.5m, 45m, etc. accordingly.
(IV) When applying for certification of the Energy Conservation Label for fixtures of roadway lighting, an applicant should submit a complete test report on said fixtures, showing that they comply with CNS 9118 “Fixtures of roadway lighting” or CNS 15233 “Fixtures of roadway lighting with light emitting diode lamps.”
(V) Regarding the application for certification of the Energy Conservation Label for fixtures of roadway lighting, the principles of recognizing safety series products make reference to Appendix A “Recognition principles and testing requirements for series type” of CNS 15233 “Fixtures of roadway lighting with light emitting diode lamps.” The series type is not recognized in terms of performance.
II. Attention should be paid to the following concerning the energy conservation label’s energy efficiency marking:
(I) The name and address of the user must be clearly marked on the product or package.
(II) If the user is an agent, the name and address of the manufacturer must be clearly marked on the product or package as well.
(III) The product catalog should display the color temperature, classification of lighting fixtures, rated luminous flux value, and rated luminous efficacy value.
(IV) Rounding to the nearest integer is adopted for calculation of the test value of the product’s luminous flux, which must not be less than 95% of the marked value of its rated luminous flux.
(V) Rounding to the first decimal point is adopted for calculation of the test value of the product’s luminous efficacy, which must be more than 95% of the marked value of its rated luminous efficacy.
(VI) Rounding to the first decimal point is adopted for calculation of the actual measured value of the product’s lumen maintenance.
(VII) Rounding to the second decimal point is adopted for calculation of the product’s illuminance uniformity.
(VIII) Rounding to the first decimal point is adopted for calculation of the product’s average illuminance.