Recital 6

Commission Delegated Directive (EU) 2022/1631 of 12 May 2022 amending, for the purposes of adapting to scientific and technical progress, Annex IV to Directive 2011/65/EU of the European Parliament and of the Council as regards an exemption for the use of lead in bismuth strontium calcium copper oxide superconductor cables and wires and lead in their electrical connections (Text with EEA relevance) · European Union

(6) Lead-containing solders are used to connect the superconducting wires and cables to other EEE components. There is currently no lead-free alternative available on the market that would provide a sufficient level of reliability for applications, where properties such as ductility and low electrical resistivity at low temperatures are required.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-17 · Text as adopted (Official Journal); later amendments are not incorporated in this text.