# Meters (Certification) Regulations (Northern Ireland) 1998, Paragraph 5

Extent: N.I.

Where a transformer intended for use with a meter has been tested, a statement shall be included in the report that—
(a) the transformer referred to in the report is accurately described and whether it is a new or used transformer;
(b) the transformer has been examined and tested in accordance with Schedule 1 or Harmonisation Documents 553 S2 and 554 S1 approved on 24th March 1992 by the European Committee for Electrotechnical Standardization;
(c) the uncertainty of measurement was not greater than plus or minus 0.1%;
(d) no transformer error was greater than plus or minus 0.5% at any load from 5% to 120% 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/nisr/1998/444/schedule/2/paragraph/5 (the official version)
Page: https://openlegislation.uk/meters-certification-regulations-northern-ireland-1998/schedule-2/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.