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United Nations

ECE /TRANS/WP.29/ GRE/2018/40 edited

Description: _unlogo

Economic and Social Council

Distr.: General

9 August 2018

 

Original: English

Economic Commission for Europe

Inland Transport Committee

World Forum for Harmonization of Vehicle Regulations

Working Party on Lighting and Light-Signalling

Eightieth session

Geneva , 23-26 October 2018

Item 5 of the provisional agenda

UN Regulations Nos. 37 (Filament lamps), 99 (Gas discharge light sources), 128 (Light emitting diodes light sources) and the Consolidated Resolution on the common specification of light source categories

Proposal for amendment to version [ 4 ] of the Consolidated Resolution on the common specification of light source categories

Submitted by the Task Force on Substitutes and Retrofits (TF SR) [*]

The text reproduced below was prepared by the Task Force on Substitutes and Retrofits (TF SR) to modify GRE/2018/40, where the information for the 24V version was missing and to implement editorial corrections. GRE/2018/40 was adopted by GRE during its 80 th session as part of a package which also includes amendments to UN Regulation No. 128.
 



I. Proposal

Sheet PY21W/LED/1, amend to read:


" Category PY21W/LED Sheet PY21W / LED/1

The drawings are intended only to illustrate the essential dimensions (in mm) of the LED light source.

Figure 1

Main drawing

Table 1

Essential electrical and photometric characteristics of LED light sources

Dimensions in mm

LED light sources of normal production

Standard LED light source

min.

nom.

max.

nom.

e 2/

 

31.8

 

31.8

h 2/

 

9.0

 

9.0

2/

75°

90°

105°

90° 10°

Cap BAU15s-3(110°) in accordance with IEC Publication 60061 (sheet 7004-19A-1)

Electrical and photometric characteristics

5/

6/

5/

Rated values

Volts

12

24

12

Watts 3/

7

7

Test voltage

Volts

13.5

28.0

13.5

Objective values

Watts 3/

9 max.

10 max.

9 max.

Electrical current (in mA) 3/

(at 9-16V DC)

150 min.

750 max.

(at 16-32V DC)

75 min.

375 max .

(at 9-16V DC)

150 min.

750 max.

Luminous flux 3/, 4/ (in lm)

280 20 %

280 20 %

280 10 %

Luminous flux 3/ (in lm)

(at 9 V DC)

56 min.

(at 16 V DC)

30 min.

(at 9 V DC)

56 min.

1 The light emitted from the LED light source shall be amber.

2 To be checked by means of a "Box-System"; sheet PY21W/LED/2.

3 Operated in flashing mode for 30 minutes (frequency = 1.5 Hz, duty cycle 50 per cent ON, 50 per cent OFF) and measured in the ON-state of flashing mode after 30 minutes of operation.

4 The value measured at elevated ambient temperature of 80 C shall be at least 65% of this value.

5 In case of a failure of any of the light emitting elements, the LED light source shall either still comply to the requirements concerning luminous flux and luminous intensity distribution or stop emitting light whereby / in the latter case the electrical current draw, when operated between 12 V and 14 V, shall be less than 50 mA.

6 In case of a failure of any of the light emitting elements, the LED light source shall either still comply to the requirements concerning luminous flux and luminous intensity distribution or stop emitting light whereby / in the latter case the electrical current draw, when operated between 24 V and 28 V, shall be less than 25 mA.


II. Justification

Modifications due to missing information with respect to the 24V version:

-           Adding the minimum and maximum limits for the electrical current of the 24V version

-           Adding the minimum luminous flux limit of the 24V version at voltage drop level (16V)

-           Adding footnote 6 describing the failure behavior of the 24V version

Editiorial corrections:

-           Removing tolerances of angle , as these tolerances – different to the situation with the counterpart light source – are not needed anymore for the screen projection reqirements

-           Moving footnotes 2 and 3 to a more general position in table 1 for better readability

                   


[*] * In accordance with the programme of work of the Inland Transport Committee for 2018–2019 (ECE/TRANS/274, para. 123 and ECE/TRANS/2018/21/Add.1, cluster 3.1), the World Forum will develop, harmonize and update UN Regulations in order to enhance the performance of vehicles. The present document is submitted in conformity with that mandate