UN R148 Supplement 3 (00 series) · UNECE Regulation No. 148 (ECE R148) — Uniform provisions concerning the approval of light-signalling devices (lamps) for power-driven vehicles and their trailers.
UN R148 — Supplement 3 to the 00 series of amendments
Supplement 2 → 3
- What changed
- Paragraph 4.6.1.4. no longer names direction indicator lamps of category 11, 11a, 11b, 11c and 12 as lamps that must comply with paragraph 5.6.3.
- Paragraphs 4.6.1.3. to 4.6.1.6. each add that the requirements of paragraph 4.6.1.1. are still applicable.
- Annex 3, paragraph 1.2. adds a check for reversing lamps if visual examination of a lamp appears to reveal substantial local variations of intensity.
- Why
- The added text in paragraphs 4.6.1.3. to 4.6.1.6. does not change the content or requirements of the Regulation. It is purely meant to clarify the failure provisions.
- Under UN Regulation No. 50, direction indicator lamps of categories 11 and 12 are no longer required to meet any n-1 failure requirements. This has applied since Supplement 17 to its original series of amendments.
- The updated Annex 3, paragraph 1.2. restores an extra requirement for reversing lamps that is missing in the original text of UN Regulation No. 148.
Q1What changed6 changes
Categories of direction indicator lamps in paragraph 4.6.1.4.
Paragraph 4.6.1.4. now says that the requirements of paragraph 4.6.1.2. do not apply to direction indicator lamps. Direction indicator lamps of category 1, 1a, 1b, 2a and 2b must comply with the requirements of paragraph 5.6.3. Before, the exemption named direction indicator lamps of category 1, 1a, 1b, 2a, 2b, 11, 11a, 11b, 11c and 12 that must meet paragraph 5.6.3. Categories 11, 11a, 11b, 11c and 12 are no longer named in this duty.
Paragraph 4.6.1.1. in the exemptions of paragraphs 4.6.1.3. to 4.6.1.6.
Paragraphs 4.6.1.3. to 4.6.1.5. each give a case where the requirements of paragraph 4.6.1.2. do not apply. Paragraph 4.6.1.6. gives a case where the requirements of paragraph 4.6.1.2.(b) do not apply. Each of these paragraphs now adds a sentence that starts with “However”. In paragraphs 4.6.1.3. to 4.6.1.5., the new sentence says that the requirements of paragraph 4.6.1.1. are still applicable. For stop- and position lamps for vehicles of category L, paragraph 4.6.1.6. now says that the requirements of paragraphs 4.6.1.1. and 4.6.1.2.(a) are still applicable.
Local variations of intensity in reversing lamps (Annex 3, para. 1.2.)
Annex 3, paragraph 1.2. has a new sentence for reversing lamps. For reversing lamps, if visual examination of a lamp appears to reveal substantial local variations of intensity, a check must be made. The check covers intensities measured between two of the directions of measurement referred to above. The check makes sure that no such intensity is below 50 per cent of the lower minimum intensity of the two prescribed for these directions. Before this supplement, paragraph 1.2. did not have this sentence.
Q2Why it changed
- Proposed by
- Informal Working Group on Simplification of Lighting and Light-Signalling Regulations
- Working party
- GRE, 83rd session (October 2020)
Reasons
The added text “However, …” in paragraphs 4.6.1.3. to 4.6.1.6. does not change the content or requirements of the Regulation. It is purely meant to clarify the failure provisions in the four exemptions of these paragraphs.
Sources (2)
“The added text “However, …” in the paragraphs 4.6.1.3. to 4.6.1.6. does not change the content/requirements of the regulation.”
“It is purely meant to clarify the requirements of failure provisions in the 4 exemptions as set forth in the paragraphs 4.6.1.3. to 4.6.1.6.”
In these cases the requirements of paragraph 4.6.1.2. are (partially) exempted, but the requirements of paragraph 4.6.1.1. are still applicable. It was considered that such a clarification would be useful.
Source
“Even though in these cases the requirements of paragraph 4.6.1.2. are (partially) exempted, the requirements of paragraph 4.6.1.1. are still applicable and it was considered that such a clarification would be useful.”
Paragraph 4.6.1.4. is also updated to correctly reflect the existing text of UN Regulations on light-signalling. Under UN Regulation No. 50, direction indicator lamps of categories 11 and 12 are no longer required to meet any n-1 failure requirements. This has applied since Supplement 17 to the original series of amendments to UN Regulation No. 50. Paragraph 7.5.1. of UN Regulation No. 50 states this.
Sources (3)
“paragraph 4.6.1.4. is also updated to correctly reflect the existing text of UN Regulations on light-signalling.”
“With Supplement 17 to the original series of amendments to UN Regulation No. 50, direction indicator lamps of categories 11 and 12 are no longer required to fulfill any n-1 failure requirements”
“as stated in paragraph 7.5.1. of UN Regulation No. 50.”
The updated Annex 3, paragraph 1.2. restores an extra requirement for reversing lamps that is missing in the original text of UN Regulation No. 148. This additional paragraph is taken from UN Regulation No. 23, Annex 3, paragraph 2.2.
Sources (2)
“The updated text of Annex 3, paragraph 1.2., restores an extra requirement for reversing lamps that is missing in the original text of UN Regulation No. 148.”
“This additional paragraph is taken from UN Regulation No. 23, Annex 3, paragraph 2.2.”
Document trail
- 2020-07RevisedECE/TRANS/WP.29/GRE/2020/9/Rev.1Revised proposal to correct and clarify the text of UN Regulation No. 148
- —Working party adoptsECE/TRANS/WP.29/GRE/83Session report, para. 8: GRE adopted the proposals
- 2020-12Sent to WP.29ECE/TRANS/WP.29/2021/45Text that GRE sent to WP.29 and AC.1
- 2021-03WP.29 adoptsECE/TRANS/WP.29/1157Adopted at the 183rd session (session report, para. 137)
- 2021-09-30In forceC.N.346.2021.TREATIES-XI.B.16.148UN depositary notification
Q3Who is affected
Vehicle manufacturer
- No direct action for this role.
Component supplier
- Review the failure design of direction indicator lamps of categories 11, 11a, 11b, 11c and 12 against paragraph 4.6.1.4.
- Design reversing lamps to pass the 50 per cent check if visual examination appears to reveal substantial local intensity variations.
Technical service / Approval authority
- Be ready to check reversing lamps where visual examination appears to reveal substantial local variations of intensity.
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ⓘ This report gives advice only. It is not legal or type-approval advice.