Division 4.1.6.1 Voltage and frequency of the electricity supply United Kingdom Original text. Later amendments are not shown. 4.1.6.1.1Energy supply 4.1.6.1.2Energy recuperation Notes on Division 4 Textual amendments F1 Substituted by Commission Decision of 23 July 2012 amending Decisions 2002/731/EC, 2002/732/EC, 2002/733/EC, 2002/735/EC and 2006/66/EC and repealing Decision 2002/730/EC concerning technical specifications for interoperability (notified under document C(2012) 4982) (Text with EEA relevance) (2012/462/EU). ← Division 4.1.6 Division 4.1.6.1 Division 4.1.6.1.1 →