Defines a test that determines the suitability of optical fibres (types A1a to A1d and B1 to B4) to withstand changes in temperature in actual use, storage and/or transport. The test permits the observation of effects of change of temperature over a given period (following the test Nb of IEC 60068-2-14).
Describes measuring methods which apply to environmental tests of optical fibres. The methods are to be used for inspection of optical fibres.
IEC 60793-1-52:2014 provides a practical method for evaluating fibre performance in a defined environment. The purpose of this standard is to define a test that determines the suitability of sub-category A1a to A1d multimode fibres and class B and C single-mode fibres to withstand the environmental condition of change in temperature which may occur in actual use, storage and/or transport. The test is primarily intended to permit the observation of effects of change of temperature over a given period. This procedure is conducted in accordance with IEC 60068-2-14, Test Nb. This second edition cancels and replaces the first edition, published in 2001, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - harmonizing the content with sectional specifications of relevant fibre types; - extending the applicability of the document to class C single-mode fibres. Keywords: sub-category A1a to A1d multimode fibres, class B and C single-mode fibres, change in temperature
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