# The Meters (Certification) Regulations 1998, Paragraph 5

Extent: E+W+S

Where a transformer intended for use with a meter has been tested, a statement—
(1) that the transformer referred to in the report is accurately described and as to whether it is a new or used transformer;
(2) that the transformer has been examined and tested in accordance with Schedule 1 or, in the case of a current transformer, with Harmonisation Document 553 S2 approved by the European Committee for Electrotechnical Standardization on 9th March 1993, or, in the case of a voltage transformer, with Harmonisation Document 554 S1 approved by that Committee on 24th March 1992;
(3) that the uncertainty of measurement was not greater than plus or minus 0.1 per cent; and
(4) that no transformer error was greater than plus or minus 0.5 per cent. at any load from 5 per cent. to 120 per cent. of full load when connected to the maximum rated burden or, if known, the working burden.

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Source: https://www.legislation.gov.uk/uksi/1998/1566/schedule/2/paragraph/5 (the official version)
Page: https://openlegislation.uk/meters-certification-regulations-1998/schedule-2/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.