SR EN 50556:2011

Road traffic signal systems

This European Standard specifies requirements for Road Traffic Signal Systems, including their development, design, testing, installation and maintenance. In particular, it forms the electrotechnical part of the following two standards issued by CEN: – EN 12368, Traffic control equipment ? Signal heads – EN 12675, Traffic signal controllers ? Functional safety requirements Each of these standards above should be used with this standard either singly or together to define an operational equipment or system. This should be achieved by using the electrotechnical methods and testing defined in this standard. Where Road Traffic Signal Systems are to be used with other systems, e.g. public lighting or railway signalling and communication, this standard should comply with the other respective standard to ensure that overall safety is not compromised. Only permanently or temporarily installed Road Traffic Signal Systems are included in this standard. Central office and portable signalling systems are not covered.

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General information

Status : Withdrawn
Approval date : 12/23/2011
Withdrawal date : 9/28/2021
Number of pages : 42
ICS : 93.080.30 Road equipment and installations
Technical Committee : 312 - Small power transformers

Relations with other standards:

Replaces SR HD 638 S1:2001/A1:2007
Replaces SR HD 638 S1:2001
Normative reference SR EN 60529:1995
Normative reference SR EN 60950-1:2006/A1:2011
Normative reference SR EN 61140:2016
Normative reference SR EN ISO 9001:2008
Normative reference SR EN 12675:2002
Normative reference SR HD 60364-5-54:2012
Normative reference SR EN 60068-2-14:2010
Normative reference SR EN 60068-2-30:2006
Normative reference SR CEI 60050(191):2002/A1:2005
Normative reference SR EN 60950-1:2006/A12:2011
Normative reference SR EN 12368:2015
Normative reference SR CEI 60050(191):2002/A2:2005
Normative reference SR EN 50293:2013
Normative reference SR EN 50129:2003
Normative reference SR CEI 60050-826:2006
Normative reference SR EN 50110-1:2013
Normative reference SR EN ISO 9001:2008/AC:2009
Normative reference SR EN 60068-2-2:2008
Normative reference SR CEI 60050(191):2002
Normative reference SR EN 60950-1:2006/A2:2014
Normative reference SR EN 60068-2-5:2011
Normative reference SR EN 60068-2-64:2009
Normative reference SR EN 60068-2-1:2007
Normative reference SR EN 60950-1:2006/A11:2009
Normative reference SR EN 60529:1995/A1:2003
Normative reference SR EN 60950-1:2006/AC:2011
Normative reference SR EN 60950-1:2006
Normative reference SR EN 60529:1995/A2:2015
Normative reference SR EN 62262:2004
Normative reference SR EN 50129:2003/AC:2014
Replaced by SR EN 50556:2019