UN R128: Proposal for Supplement [8]
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The current text of UN R128, Annex 4, paragraph 1.2. allows only for a decrease of luminous flux from 1 minute to 30 minutes. This has proven to be unnecessarily design restrictive as the drive electronics in a stabilized light source can lead to a slight increase in the luminous flux from 1 minute to 30 minutes. Therefore, this proposal would allow a limited increase of luminous flux from 1 minute to 30 minutes within the given minimum and maximum requirements. This proposal relates to document GRE/2018/48 retaining requirements for LR4 category light sources which would otherwise have been impacted by the present proposal.

Reference Number: GRE/2018/49
Origin: GTB
Date: 10 August 2018
Proposal Status: Formal GR review
Related Documents:
GRE/2018/48 | RE5: Proposal for amendment 3 to the Consolidated Resolution on the common specification of light source categories
GRE/2018/49/Corr.1 | UN R128: Correction to the proposal for Supplement [8]
WP.29/2019/19 | UN R128: Proposal for Supplement 9
Discussion(s):
Working Party on Lighting and Light-signalling | Session 80 | 23-26 Oct 2018

22. The expert of GTB introduced amendment proposals that modified light source category LR4 in UN Regulation No. 128 and in the Consolidated Resolution R.E.5 (ECE/TRANS/WP.29/GRE/2018/48, ECE/TRANS/WP.29/GRE/2018/49 and Add.1). GRE adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration at their March 2019 sessions as draft Supplement 9 to the original version of UN Regulation No. 128 and draft amendment 3 to R.E.5. GRE noted that both amendments are part of the same package and should enter into force on the same date.

81. WP.29 noted that GRE considered and adopted a set of amendment proposals on the use of LED substitute light sources for light-signalling applications and would continue considering LED substitutes for front-lighting applications. WP.29 was also informed that GRE had adopted new series of amendments to UN Regulations Nos. 10 (Electromagnetic compatibility) and 53 (Installation of lighting and light-signalling devices for L3 vehicles).

World Forum for the Harmonization of Vehicle Regulations | Session 176 | 12-16 Nov 2018

22. The expert of GTB introduced amendment proposals that modified light source category LR4 in UN Regulation No. 128 and in the Consolidated Resolution R.E.5 (ECE/TRANS/WP.29/GRE/2018/48, ECE/TRANS/WP.29/GRE/2018/49 and Add.1). GRE adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration at their March 2019 sessions as draft Supplement 9 to the original version of UN Regulation No. 128 and draft amendment 3 to R.E.5. GRE noted that both amendments are part of the same package and should enter into force on the same date.

81. WP.29 noted that GRE considered and adopted a set of amendment proposals on the use of LED substitute light sources for light-signalling applications and would continue considering LED substitutes for front-lighting applications. WP.29 was also informed that GRE had adopted new series of amendments to UN Regulations Nos. 10 (Electromagnetic compatibility) and 53 (Installation of lighting and light-signalling devices for L3 vehicles).