IEC 62236-3-1-2018 pdf download.Railway applications – Electromagnetic compatibility – Part 3-1: Rolling stock – Train and complete vehicle.
Generally, it is not possible to test electromagnetic compatibility invoking every function of the stock. The tests shall be made at typical operating modes considered to produce the largest emission. The typical operating mode shall require all systems to be energised which are normally in continuous operation during service. It is not necessary during the test to exercise systems which operate transiently such as for example operation of internal doors, although they should be energised. It is not necessary to test degraded modes of operation. The configuration and mode of operation shall be specified in the test plan and the actual conditions during the tests shall be precisely noted in the test report.
5 Immunity requirements No tests are applied to the complete vehicle. It is expected that the assembly of the apparatus into a complete vehicle will give adequate immunity, provided that an EMC plan has been prepared and implemented, taking into account the requirements in IEC 62236-3-2. In exceptional cases, where apparatus meets another EMC Standard, but full compliance with IEC 62236-3-2 is not demonstrated, EMC shall be ensured by adequate integration measures of the apparatus into the vehicle system and/or by an appropriate EMC analysis and test which justifies deviating from IEC 62236-3-2.
6 Emission tests and limits
6.1 General The emission tests and limits for rolling stock in this document should ensure as far as possible that the rolling stock does not interfere with typical installations in the vicinity of the railway system. Measurements shall be performed in well-defined and reproducible conditions. It is not possible to totally separate the effects of the railway system and the stock under test. For radiated emissions, the test conditions are defined in 6.3.1 and 6.3.2. NOTE 1 Signalling and communication, train radio and other railway systems (axle counters, track circuits, train control systems, etc.) are different in every country in terms of operating frequencies and waveforms. Therefore, compatibility requirements are specified according to the type of signalling and communication systems used. NOTE 2 There can be cases in which radio or other railway external services with working frequencies below 1 50 kHz are in operation close to the railway. The EMC plan covers these cases and an adequate level of emission from railway on these working frequencies may be found in the values given in informative Annex C, hence no guarantee can be given for an undisturbed operation.
6.2 Interference on outside party telecommunication lines
6.2.1 Digital telecommunication lines Interference with digital systems such as PCM, ISDN, xDSL is not covered in this document. It should be noted that these systems operate in a higher frequency range using multiple carriers and various automatic error correction protocols. It is considered unlikely that rolling stock can produce sufficient interference in this frequency range.IEC 62236-3-1 pdf download.