Railway regulations on electronic devices
At Biosphere Flux we design, project and produce lights, plugs or USB charging ports that comply with international standards for the railway sector EN 50155 and EN 50121-3-2.
EN50155 – The standard that covers electronic equipment for railway applications
The EN50155 certification is an International Standard that covers electronic equipment used on rolling stock for railway applications. The Standard covers aspects of this electronic equipment, including temperature, humidity, shock, vibration, and other parameters.
EN 50121-2-3 – The European standard covering the emission and immunity aspects of electromagnetic compatibility
This European standard applies to the emission and immunity aspects of electromagnetic compatibility of electrical and electronic equipment intended for use in the railway rolling stock.
The objective of this Standard is to define the limits and test methods for electromagnetic emissions and the requirements for immunity tests in relation to conducted and radiated disturbances. These limits and tests represent the essential requirements for electromagnetic compatibility.
The emission requirements have been selected in order to ensure that the disturbances generated by the electronic device operate on railway rolling stock and do not exceed a level that could prevent other devices from operating properly. The immunity requirements have been selected in order to ensure an adequate level of immunity to rolling stock equipment.
Test methods
EN55011
This international standard applies to industrial electrical equipment operating in the frequency range from 0 Hz to 400 GHz, as well as to domestic and similar equipment designed to generate or use radioelectric energy locally.
An international standard that applies to industrial, scientific and medical electronic equipment operating in the frequency range from 0 Hz to 400 GHz. Measurements are only necessary in the frequency ranges for which limits are specified in chapter 6.
For Industrial, Scientific, and Medical (ISM) applications of radio frequencies, within the meaning of the definition given in the ITU Radio Regulations, this standard covers the emission requirements related to radio frequency disturbances in the range of frequencies from 9 kHz to 18 GHz.
This standard specifies the requirements for radio frequency ICM lighting equipment and for UV radiation generators operating within frequency bands in the frequency range 9 kHz to 18 GHz.
Equipment covered by other CISPR product family and product emission standards does not fall within the scope of this standard.
EN 61000-4-2
This part of the IEC 61000 Standard concerns impunity requirements and test methods for electrical electronic equipment subjected to discharge of static electricity produced directly by the operators and between people and objects located in the vicinity. The ranges of the test levels relative to different environmental and installation conditions are further defined and the test procedures are established.
The purpose of this standard is to establish a common and reproducible basis for evaluating the performance characteristics of electrical and electronic equipment when subjected to electrostatic discharge. In addition, the discharges that operators can produce on objects close to vital equipment are included.
EN 61000-4-3
This part of IEC 61000 applies to the immunity of electrical and electronic equipment to radiated electromagnetic energy. Defines the required test levels and procedures.
This section is intended to establish a common reference for the evaluation of the performance characteristics of electrical and electronic equipment subjected to radio frequency electromagnetic fields. The test method documented in this part of IEC 61000 describes a method to assess the immunity of equipment or systems against the defined phenomenon.
As described in IEC Guide 107 this is a basic EMC publication for use by IEC product committees. As stated in Guide 107, IEC product committees are required to determine whether or not to apply this immunity test standard and, if so, are responsible for specifying the appropriate test levels and conformance criteria. . Committee 77 and its subcommittees are prepared to cooperate with product committees in evaluating particular immunity assay values for their products.
This part deals with immunity tests relating to protection against radiofrequency electromagnetic fields from any source.
Particular considerations are devoted to protection against radiofrequency emissions from digital radiotelephones and other radiofrequency emitting devices.
This part defines the test methods to measure the effect of electromagnetic radiation on the equipment of interest. Simulation and measurements of electromagnetic radiation are not accurate enough to quantitatively determine the effects. The defined test methods have been fine-tuned mainly to obtain a good reproducibility of the results for different test installations for a qualitative analysis of the effects.
This Standard is an independent test method. Other test methods cannot be used as a substitute for giving conformance to this standard.
EN 61000-4-4
This part of the IEC 61000 Standard deals with the immunity of electrical and electronic equipment to repetitive fast transients. Immunity requirements and test procedures for electrical fast transient bursts are given. Ranges for test levels are also defined and test procedures are established.
The purpose of this standard is to establish a common and reproducible reference for the purpose of evaluating the immunity of electrical and electronic equipment sustained to fast transient bursts at power, signal, control, and ground ports. The test method documented in this part of the IEC 61000 series describes a consistent method for evaluating the immunity of an equipment or system against a defined phenomenon.
EN 61000-4-5
This part of the IEC 61000 Standard refers to the immunity requirements, test methods, and range of recommended test levels for equipment against unidirectional shock waves caused by transient lightning-type overvoltages ( atmospheric) and maneuver type. Various test levels are defined relative to different environments and installation conditions. These requirements have been developed and are applicable to electrical and electronic equipment.
The purpose of this standard is to establish a common reference to evaluate the immunity of electronic and electrical equipment, when subjected to shock waves. The test method documented in this part of IEC 61000 describes a method of evaluating the immunity of a piece of equipment or a system against a given phenomenon.
EN 61000-4-6
This part of the IEC 6100-4 Standard deals with the requirements related to conducted immunity of electrical and electronic equipment against electromagnetic disturbances caused by intentional radio frequency (RF) transmitters, in the frequency range of 9 kHz to 80 MHz. Equipment that does not even have a conductive wire (such as power cords, signal transmission lines, or ground connections) that can couple the equipment with RF fields is excluded.
The purpose of this Standard is to establish a common reference in order to assess the functional immunity of electrical and electronic equipment when subjected to conducted disturbances induced by radio frequency fields. The test method documented in this part of IEC 61000 describes a consistent method in order to assess the immunity of equipment against a defined phenomenon.
