UN R10 — Supplement 2 to the 07 series of amendments

In paragraph 6.9.1. and Annex 10, the starting profile of ISO 16750-2 now replaces test pulse 4 of ISO 7637-2:2004 for ESA immunity tests. Table 3a now gives the starting profile with immunity test level II for 12 V and 24 V systems and 10 pulses. The starting profile is tested to the functional status classification of ISO 16750-1; pulse 4 used the functional status of ISO 7637-2:2004. The starting profile applies only to ESAs that could be installed in vehicles with internal combustion engines started by a 12V/24V starter motor. References to ISO 7637-2:2011 in paragraphs 6.7.1. and 7.19.1. and in Annex 10 no longer give the year. The list of standards drops the 2004 edition of ISO 7637-2 and adds ISO 16750-1 (Fourth edition 2023) and ISO 16750-2 (Fifth edition 2023).

Tables 2a and 2b (paragraph 6.8.2.1.) and Tables 19a and 19b now give a frequency range for each ESA immunity test method. Before, these tables only split the band into 20 to 2,000 MHz and 2,000 to 6,000 MHz. Below 2 GHz, Stripline and BCI now cover 20 to 400 MHz, the TEM cell 20 to 200 MHz and ALSE 80 to 2,000 MHz. The reverberation chamber covers “LUF to 2,000 MHz”, and above 2 GHz, ALSE and the reverberation chamber cover 2,000 to 6,000 MHz. The test levels do not change. New paragraph 2.34. defines “Lowest usable frequency (LUF)” as the lowest frequency for which the field uniformity requirements are met.

For ESA measurements to Annex 18, paragraphs 7.12.2.1. and 7.12.2.2. now list the limit values for their two rated current ranges. Before, they only referred to IEC 61000-3-3 or IEC 61000-3-11, “paragraph 5”, and listed no values. In both paragraphs, the value of Pst must not be greater than 1.0, and the value of Plt must not be greater than 0.65. During a voltage change, d(t) must not exceed 3.3 per cent for more than 500 ms. The relative steady-state voltage change dc must not exceed 3.3 per cent, and the maximum relative voltage change dmax must not exceed 6 per cent. Paragraphs 7.4.2.1. and 7.4.2.2. for vehicles now also say “Clause 5” instead of “paragraph 5”.

Paragraphs 6.4.2.1. and 7.7.2.1. no longer say “rms” after the field strength and BCI current test levels. The test level values do not change. In Annex 6, paragraph 5.1.2., calibration for TLS must now use four horizontal field probes, not one field probe at the vehicle reference point. In Annex 6, Appendix 1, Figure 4, the key now names the antenna distance “D-bumper” instead of “D”. The figure now gives D-bumper with a tolerance of ±0.05, with dimensions in metres. The list of standards now gives the 2025 editions of ISO 11451-1, ISO 11451-2 and ISO 11452-1, not the 2015 editions.

The conducted disturbance tables for AC and DC power lines now give the quasi-peak limit and the average limit in separate columns. Before, one column “Limits and detector” gave both values. The limit values do not change. The tables of limit E (dBµV/m) at frequency F (MHz) for vehicles and ESAs now add “for a 120 kHz bandwidth”. The table for vehicle narrowband limits at 10 m also says that the limits must be measured with a 120 kHz bandwidth. In Annexes 5 and 8, the parameter tables no longer have peak detector columns and give only average detector values.

In Annex 4, paragraph 2.2., the requirement to keep the traction battery SOC between 20 and 80 per cent of the maximum SOC is deleted. The two sentences that set the charging current for AC and DC charging, if the current consumption can be adjusted, are also deleted. The sentence on the average state of charge for multiple batteries stays, now with “shall” instead of “must”. Former paragraphs 2.3. to 2.3.3. are now 2.2.1. to 2.2.1.3., and former paragraphs 2.4. to 2.4.4. are now 2.2.2. to 2.2.2.4. Paragraph 3.1. now refers to Figure 2 of the Appendix to this Annex, not to “the Figure of the appendix”.

Many paragraphs in the annexes now write “Annex”, “Appendix” and “Figure” with a capital letter. Several references to clauses of IEC standards now say “Clause”, and several references to Appendix 8 now say “paragraph”. In several paragraphs, “must” now reads “shall”. Several annex titles now spell out “electrical/electronic sub-assemblies (ESAs)” or add “(ESAs)”. The footnote on R.E.3 now refers to document ECE/TRANS/WP.29/78/Rev.8 instead of Rev.6. Paragraph 3.2.8. now says that replacement ESAs “do not need a type approval” instead of “need no type approval”.