EN 50155:2007/AC:2012

EN 50155:2007/AC:2012 is a corrigendum published by CLC. Its full title is "Railway applications - Electronic equipment used on rolling stock". This standard covers: This standard applies to all electronic equipment for control, regulation, protection, supply, etc., installed on rail vehicles and associated with:;either the accumulator battery of the vehicle;;or a low voltage power supply source with or without a direct connection to the contact system (transformer, potentiometer device, auxiliary supply); with the exception of electronic power circuits, which conform to EN 50207. This standard covers the conditions of operation, design, construction, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for competent, reliable equipment. Additional requirements in other standards or individual specifications may complement this standard, if they are justified. Specific requirements related to practices necessary to assure defined levels of functional safety are to be determined in accordance with 4.6.3.1 and 4.6.3.2 of EN 50126 and its informative Annex A. Software safety integrity level of 1 or higher shall only be considered when it is shown that a residual safety risk remains and that it has to be carried by the software driven programmable electronic system. In such a case (i.e. software safety integrity level 1 or higher), EN 50128 is applicable. For the purpose of this standard, electronic equipment is defined as equipment mainly composed of semiconductor devices and recognized associated components. These components will mainly be mounted on printed boards.

This standard applies to all electronic equipment for control, regulation, protection, supply, etc., installed on rail vehicles and associated with:;either the accumulator battery of the vehicle;;or a low voltage power supply source with or without a direct connection to the contact system (transformer, potentiometer device, auxiliary supply); with the exception of electronic power circuits, which conform to EN 50207. This standard covers the conditions of operation, design, construction, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for competent, reliable equipment. Additional requirements in other standards or individual specifications may complement this standard, if they are justified. Specific requirements related to practices necessary to assure defined levels of functional safety are to be determined in accordance with 4.6.3.1 and 4.6.3.2 of EN 50126 and its informative Annex A. Software safety integrity level of 1 or higher shall only be considered when it is shown that a residual safety risk remains and that it has to be carried by the software driven programmable electronic system. In such a case (i.e. software safety integrity level 1 or higher), EN 50128 is applicable. For the purpose of this standard, electronic equipment is defined as equipment mainly composed of semiconductor devices and recognized associated components. These components will mainly be mounted on printed boards.

EN 50155:2007/AC:2012 is classified under the following ICS (International Classification for Standards) categories: 45.060.10 - Tractive stock. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 50155:2007/AC:2012 has the following relationships with other standards: It is inter standard links to EN 50155:2017, EN 50155:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 50155:2007/AC:2012 is associated with the following European legislation: EU Directives/Regulations: 2008/57/EC; Standardization Mandates: M/483. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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