# Commission Implementing Decision (EU) 2016/588 of 14 April 2016 on the approval of the technology used in 12 Volt efficient alternators as an innovative technology for reducing CO2 emissions from passenger cars pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council (Text with EEA relevance) (repealed), Division 3: MEASUREMENTS AND DETERMINATION OF THE EFFICIENCY

Extent: E+W+S+N.I.

The efficiency of the efficient alternator shall be determined in accordance with ISO 8854:2012, with the exception of the elements specified in the present paragraph.
The measurements shall be conducted at different operating points i, as defined in Table 1. The alternator current intensity is defined as half of the rated current for all operating points. For each speed the voltage and the output current of the alternator are to be kept constant, the voltage at 14,3 V.
Table 1
Operating points
Operating pointi
Holding time[s]
Rotational frequencyni [min– 1]
Frequencyhi
1
1 200
1 800
0,25
2
1 200
3 000
0,40
3
600
6 000
0,25
4
300
10 000
0,10
The efficiency shall be calculated in accordance with to Formula 1.

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Source: https://www.legislation.gov.uk/eudn/2016/588/annex/division/3 (the official version)
Page: https://openlegislation.uk/eu-decision-2016-588/annex/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.