60793-1-33-2001
Fibres Optiques - Partie 1-33: Methodes De Mesures Et Procedures D?Essai - Resistance A La Corrosion Sous Contrainte (Edition 1.0; Together with the Other Standards in the IEC 60793-1-3X Series@ Cancels and Replaces the Second Edition of IEC 60793-1-3)

Optical Fibres - Part 1-33: Measurement Methods and Test Procedures - Stress Corrosion Susceptibility (Edition 1.0; Together with the Other Standards in the IEC 60793-1-3X Series@ Cancels and Replaces the Second Edition of IEC 60793-1-3)

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标准号

60793-1-33-2001

发布日期

2001年08月01日

实施日期

2017年08月18日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

IEC - International Electrotechnical Commission

引用标准

84

适用范围

Scope and object This part of IEC 60793 contains descriptions of the five main test methods concerning the determination of stress corrosion susceptibility parameters. The object of this standard is to establish uniform requirements for the mechanical characteristic stress corrosion susceptibility. Dynamic fatigue and static fatigue tests are used in practice to determine stress corrosion susceptibility parameters@ dynamic n-value and static n-value. Any fibre mechanical test should determine fracture stress and fatigue properties under conditions that model the practical application as close as possible. Some appropriate test methods are available: ?C A: Dynamic n value by axial tension; ?C B: Dynamic n value by two-point bending; ?C C: Static n value by axial tension; ?C D: Static n value by two-point bending; ?C E: Static n value by uniform bending. These methods are appropriate for types A1@ A2 and A3 multimode and type B1 single-mode fibres. Static and dynamic fatigue test methods show comparable results if both tests are performed in the same effective measuring time. For dynamic fatigue tests this means a measuring time which is (n + 1) times larger than the measuring time of static fatigue tests. When using static fatigue test methods@ it has been observed that for longer measuring times and consequently lower applied stress levels@ the n-value increases. The range of measuring times of the static fatigue tests@ given in this standard@ approaches the practical situation better than that of the dynamic fatigue tests@ which in general are performed in relatively short time-frames. These tests provide values of the stress corrosion parameter@ n@ that can be used for reliability calculations according to IEC 62048.