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.
IEC 60794-2-20:2013 is a family specification covering multi-fibre optical cables for indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to cables covered by this standard. Annex B contains a Blank Detail Specification and general guidance in case the cables are intended to be used in installation governed by the MICE table of ISO/IEC 24702 (Industrial premises). This third edition cancels and replaces the second edition published in 2008 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - removal of Annex C; - reference to the most recent fibre standards; - reference to the new series IEC 60794-1-2X. Keywords: family specification covering multi-fibre optical cables for indoor use This publication is to be read in conjunction with IEC 60794-1-1:2011, IEC 60794-1-2:2013 and IEC 60794-2:2002.
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