IEC 61300-2-46:2019 RLV包含官方IEC国际标准及其红线版本。Redline版本不是官方文档，它只有英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61300-2-46:2019描述了一种测试，以确定光纤设备是否适合承受实际使用、储存和/或运输中可能发生的高湿度和温度变化的环境条件。该测试主要旨在确定光纤组件在高湿度条件下的适用性——结合循环温度变化，通常会在被测设备（DUT）表面产生冷凝。吸收水分会导致膨胀，从而破坏功能效用，导致物理强度损失，并导致其他重要机械性能的变化。也可能发生光学性质的退化。尽管不一定是模拟热带试验，但该试验可用于确定绝缘材料或覆盖材料的吸湿性。这第二版取消并取代了2006年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)完成修订以符合IEC 60068-2-30； b)增加详细说明条款4，一般说明； c)增加具体实施方式条款5，装置； d)添加详细说明条款6，程序。 关键词:光纤器件承受环境条件的适用性

IEC 61300-2-46:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61300-2-46:2019 describes a test to determine the suitability of a fibre optic device to withstand the environmental condition of high humidity and change of temperature which can occur in actual use, storage and/or transport. The test is primarily intended to determine the suitability of fibre optic components under conditions of high humidity – combined with cyclic temperature changes and, in general, producing condensation on the surface of the device under test (DUT). Absorption of moisture can result in swelling that would destroy functional utility, cause loss of physical strength, and cause changes in other important mechanical properties. Degradation of optical properties can also occur. Although not necessarily intended as a simulated tropical test, this test can, nevertheless, be useful in determining moisture absorption of insulating or covering materials. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) complete revision to harmonize with IEC 60068-2-30;
b) addition of detail description Clause 4, General description;
c) addition of detail description Clause 5, Apparatus;
d) addition of detail description Clause 6, Procedure.
Keywords: suitability of fibre optic devices to withstand the environmental condition