IEC 60825-2:2021 激光产品的安全第2部分:光纤通信系统的安全

标准编号：IEC 60825-2:2021

中文名称：激光产品的安全第2部分:光纤通信系统的安全

英文名称：Safety of laser products - Part 2: Safety of optical fibre communication systems (OFCSs)

发布日期：2021-03-16

标准范围

IEC 60825-2:20 21为光纤通信系统（OFCSs）的安全运行和维护提供了要求和具体指南。在这些系统中，光功率可能在发射设备的范围之外和/或在距光源很远的地方可获得。本文件要求根据IEC 60825-1评估OFCS每个可接近位置的危险等级，作为产品分类的替代。它适用于作为工程的端到端组件安装的OFCS，用于产生、传输和接收来自激光器、发光二极管（LED）或光放大器的光辐射，其中传输通过光纤用于通信和/或控制目的。属于激光产品定义的单个部件和子组件受IEC 60825的适用子条款的约束。1.本文件适用于拟安装在OFCSs内的单个部件和组件。本文件不适用于主要设计用于传输用于材料加工或医疗等应用的光功率的光纤系统。除了激光辐射造成的危害之外，OFCSs还可能引起其他危害，例如火灾。本文件不涉及部署在爆炸性环境中的OFCSs与爆炸或火灾相关的安全问题。这第四版取消并取代了2004年出版的第三版，修正案1:20 06和修正案2:20 10。本版构成技术修订版。与上一版相比，该版本包括以下重大技术变化。a)明确了单个部件和组件的建议；见第1条第3款。b)C7已根据IEC 60825-1:20 14进行了修订，但具有与皮肤MPE相关的附加限制；见4.7.2。c)变更了条件2，增加了危险等级测量和确定方法的详细说明；参见4.7.1和4.7.2。d)附件B移至4.9。附件F已作为附件B移出。e)第D.4条危险等级评价示例-增加了其他示例。f)第D.5条故障分析-解释和指导已经简化。

IEC 60825-2:2021 provides requirements and specific guidance for the safe operation and maintenance of optical fibre communication systems (OFCSs). In these systems, optical power is possibly accessible outside the confines of the transmitting equipment and/or at great distance from the optical source.
This document requires the assessment of hazard level at each accessible location of the OFCS as a replacement for product classification according to IEC 60825-1. It applies to the installed OFCS as an engineered, end-to-end assembly for the generation, transfer and receipt of optical radiation arising from lasers, light-emitting diodes (LEDs) or optical amplifiers, in which the transference is by means of optical fibre for communication and/or control purposes.
Individual components and subassemblies that fall under the definition of a laser product are subject to the applicable subclause(s) of IEC 60825-1. This document is applicable to individual components and subassemblies intended to be installed within OFCSs.
This document does not apply to optical fibre systems primarily designed to transmit optical power for applications such as material processing or medical treatment.
In addition to the hazards resulting from laser radiation, OFCSs possibly give rise to other hazards, such as fire.
This document does not address safety issues associated with explosion or fire with respect to OFCSs deployed in explosive atmospheres.
This fourth edition cancels and replaces the third edition published in 2004, Amendment 1:2006 and Amendment 2:2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition.
a) Recommendations for individual components and subassemblies have been clarified; see Clause 1, paragraph 3.
b) C7 has been revised in accordance with IEC 60825-1:2014, but with an additional limitation related to the skin MPE; see 4.7.2.
c) Condition 2 has been changed, and a detailed description of the measurement and determination method for hazard level has been added; see 4.7.1 and 4.7.2.
d) Annex B has been moved into 4.9. Annex F has been moved forward as Annex B.
e) Clause D.4 Hazard level evaluation examples – Additional examples have been added.
f) Clause D.5 Fault analysis – Explanation and guidance has been simplified.

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