新的！IEC 60079-11:20 11现在作为IEC标准+60079-11:20 11提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。 IEC 60079-11:20 11规定了用于爆炸性环境的本质安全设备和相关设备的构造和测试，这些设备旨在连接到进入这种环境的本质安全电路。这种类型的保护适用于电路本身不能在周围爆炸性环境中引起爆炸的电气设备。本标准也适用于位于爆炸性环境之外或受IEC 60079-中所列的另一种保护类型保护的电气设备或电气设备部件。其中电路在爆炸性环境中的固有安全性可以取决于这种电气设备或这种电气设备的部件的设计和构造。通过应用本标准，评估暴露于爆炸性环境中的电路在这种环境中的使用。IEC 60079-25中提供了本质安全系统的要求。本标准补充和修改了IEC 60079-0的一般要求，表1所示除外。当本标准的要求与IEC 60079-0的要求相冲突时，应以本标准的要求为准。 本第六版取消并取代了2006年出版的IEC 60079-11第五版、2005年出版的IEC 61241-11第一版，并部分取代了IEC 60079-27于2008年出版，构成全面的技术修订。与上一版相比的重大变化如下: -包括对IEC 60079-0的非版本特定参考。 -合并IEC 60079-27中FISCO的设备要求。 -合并IEC 61241-11中可燃粉尘环境的要求。 -澄清与本质安全型设备相连的附件的要求；如充电器和数据记录器。 -增加了光隔离器的新测试要求。 -介绍关于半导体限流电源电路点火测试的附录H。 2012年1月更正的内容已纳入本副本。

NEW! IEC 60079-11:2011 is now available as IEC Standards+ 60079-11:2011 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60079-11:2011 specifies the construction and testing of intrinsically safe apparatus intended for use in an explosive atmosphere and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres. This type of protection is applicable to electrical equipment in which the electrical circuits themselves are incapable of causing an explosion in the surrounding explosive atmospheres. This standard is also applicable to electrical equipment or parts of electrical equipment located outside the explosive atmosphere or protected by another Type of Protection listed in IEC 60079-0, where the intrinsic safety of the electrical circuits in the explosive atmosphere may depend upon the design and construction of such electrical equipment or parts of such electrical equipment. The electrical circuits exposed to the explosive atmosphere are evaluated for use in such an atmosphere by applying this standard. The requirements for intrinsically safe systems are provided in IEC 60079-25. This standard supplements and modifies the general requirements of IEC 60079-0, except as indicated in Table 1. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirements of this standard shall take precedence. This sixth edition cancels and replaces the fifth edition of IEC 60079-11 published in 2006, the first edition of IEC 61241-11 published in 2005, and partially replaces the second edition of IEC 60079-27 published in 2008 and constitutes a full technical revision. The significant changes with respect to the previous edition are listed below:
- Inclusion of non-edition specific references to IEC 60079-0.
- The merging of the apparatus requirements for FISCO from IEC 60079-27.
- The merging of the requirements for combustible dust atmospheres from IEC 61241-11.
- Clarification of the requirements for accessories connected to intrinsically safe apparatus; such as chargers and data loggers.
- Addition of new test requirements for opto-isolators.
- Introduction of Annex H about ignition testing of semiconductor limiting power supply circuits. The contents of the corrigendum of January 2012 have been included in this copy.