IEC 60794-2-20:2008 is a family specification covering multi-fibre optical distribution cables for indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to cables covered by this standard. The main changes from the previous edition include:
- cable crush to be measured both during and after load;
- cable torsion test length parameter correlated to cable outer diameter;
- cable description and construction blank detail specification annexes;
- MICE environment blank detail specification is addressed in Annex B.

This publication is to be read in conjunction with IEC 60794-1-1:2001, IEC 60794-1-2:2003 and IEC 60794-2:2002.