Proposal to transfer electrical safety provisions for trolleybuses (Annex 12) from UN R107 to UN R100. In 2006, the provisions of UN R36, UN R52, and UN R107 were merged through the 02 series of amendments to UN R107. In 2015, Annex 12 of UN R107 was amended to align additional safety prescriptions for electrical safety of trolleybuses with the corresponding electrical standards. However, UN R100 has evolved beyond its initial focus on battery electric vehicles and currently presents a more appropriate location for maintaining the trolleybus electrical safety provision of Annex 12. For the provisions of Annex 1 – Part 1 – Appendices 1, 2 and 3, where a list of characteristics of a trolleybus was added apart from the special environmental conditions, a reference will be inserted to Annex 6 – Part 1 and Annex 7 of UN Regulation No. 100. A corresponding proposal for amendments will be submitted as an official document to the Working Party on Passive Safety.
5. The expert from Belgium recalled the discussion at the previous GRSG session on ECE/TRANS/WP.29/GRSG/2016/5 and presented a detailed analysis on the compatibility or incompatibility of the scopes and technical provisions for trolleybuses of UN Regulations Nos. 100 and 107 (GRSG-111-21). As an outcome of this analysis, she recommended to fully align the provisions of the UN Regulations concerned. She added that the removal of the safety prescriptions for trolleybuses from UN Regulation No. 107 and their presence in UN Regulation No. 100 on electric power trained vehicles would avoid a double type approval process. She announced her intention to also submit the outcome of the analysis to the experts of the Working Party on Passive Safety (GRSP). GRSG welcomed the important work done by the Belgium delegation.
6. The expert from France preferred to keep the provisions for trolleybuses in UN Regulation No. 107. He added that a double type approval was only necessary for hybrid vehicles and that the provisions for trolleybuses in UN Regulation No. 107 were still necessary for trolleybuses with conventional propulsion systems. The expert from Switzerland endorsed that position. The expert from the Russian Federation raised a study reservation. The expert from OICA underlined the need to align the provisions for trolleybuses in UN Regulations (e.g. ‘isolation’ to be replaced by ‘insulation’).
7. Referring to the discussion of WP.29 at its June 2016 session (report ECE/TRANS/WP.29/1123, para. 30), GRSG agreed to also involve the experts from the Working Party on Lighting and Light-Signalling (GRE) and GRSP at their forthcoming sessions. GRSG agreed to take a final decision on this subject at its next session in April 2017 awaiting the outcome of the discussion in GRE and GRSP. For that purpose, the secretariat was invited to keep GRSG-111-21 on the agenda as a reference document.
6. The expert from Belgium presented ECE/TRANS/WP.29/GRSG/2016/5 proposing to remove the new safety prescriptions for trolleybuses from UN Regulation No. 107 and insert them into UN Regulation No. 100 on electric power trained vehicles. The expert from UK raised concerns about the differences in the scopes of both Regulations and their application to trolleybuses. GRSG noted the comments by the Working Party on Lighting and Light-Signalling (GRE) about possible alignments of UN Regulations Nos. 107 and 116 with UN Regulation No. 10 on electromagnetic-compatibility (GRSG-110-04). The expert from OICA introduced GRSG-110-08-Rev.1 on the applicability of UN Regulation No. 100 versus Annex 12 of UN Regulation No. 107 with respect to electrical safety provisions. The expert from France explained that the origin of the current problem of trolleybuses was linked to the application of the European Union (EU) legislation on whole vehicle type approval. The expert from Japan informed GRSG about the intention of the Chair of GRE to seek the advice of WP.29 on this subject at the forthcoming session in June 2016. The GRSG Chair questioned the need to also involve the experts of the Working Party on Passive Safety (GRSP) in charge of UN Regulation No. 100. A number of experts expressed their preference to keep the electric safety provisions within UN Regulation No. 107. Thus, GRSG agreed that the experts of the Working Parties concerned should work on a simple solution avoiding further burden for public transport operators. The expert from Belgium volunteered to conduct a more detailed analysis on the compatibility or incompatibility of the scopes and technical provisions for trolleybuses of UN Regulations Nos. 10, 100 and 107.
7. GRSG agreed to resume consideration of this subject at its next session in October 2016 awaiting the outcome of the analysis by Belgium. GRSG requested the secretariat to keep ECE/TRANS/WP.29/GRSG/2016/5 on the agenda as a reference document.
| GRSG-111-21 |