This part of IEC 60794 is a family specification covering buffered A4 fibres and cabled A4
fibres for indoor use. See IEC 60794-2-41 and IEC 60794–2-42 for blank detail specifications.
BS EN 60794-2-40:2008 Referenced Document
IEC 60189-1 Low-frequency cables and wires with PVC insulation and PVC sheath - Part 1: General test and measuring methods*, 2018-06-22 Update