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 Home > Request Test > Railway EMC & Marine EMC Test |
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Untitled Document
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We have had many experiences of performing EMI test when departure and in motion at Seoul, Daegu and Pusan in Korea as well as local EMI test for the railcar, supplied by Rotem, at New Delhi, India in 2002. Also, we¡¯re an accredited test laboratory in the area of EMC testing for the vehicle components by MOCIE (Ministry of Commerce, Industry and Energy) of ATS (Agency for Technology and Standards) at August, 2006.
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Relevant standards :
- EN50121-3-1 Rolling stock - Train and complete vehicle
- EN50121-3-2, Rolling stock - Apparatus
Testing methods for Vehicle components
EMISSION (EMI) : - EN55011
IMMUNITY(EMS) : - EN61000-4-2 (ESD)
IMMUNITY(EMS) : - EN61000-4-3 (RS)
IMMUNITY(EMS) : - EN61000-4-4 (Transient/Burst)
IMMUNITY(EMS) : - EN50155 (SURGE)
IMMUNITY(EMS) : - EN61000-4-6 (CS)
VIBRATION : IEC 61373
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Based on the experience in EMC testing area, KEL provides the service for the marine electric equipments. The Resolution adopted by the IMO (International Maritime Organization) is a basis of the IEC standards on the communication navigation equipment. The relevant IEC standards are as follows :
- IEC 60945:2002, IEC 60533:1999
- EN 60945:2002
* Summary of IEC60945:2002
It should be able to operate continuously in any situation regardless of sea environment, voyage, vibration, temperature, humidity etc.
The equipments are classified as follows :
a) Portable
b) Protected
c) Exposed
d) Submerged
The example for the category is described in Annex D of the standard. |
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Portable
device |
Protected device |
Exposed
device |
Submerged
device |
Conducted
Emission |
N/A |
See Table 1 |
Radiated Emission |
See Table 2 |
N/A |
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| <Table 1. Limit for Conducted Emission> |
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| <Table 2. Limit of Radiated Emission> |
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The EUT should satisfy the following limit without any malfunction. If the EUT includes the radio receiver, Conducted susceptibility test and Radiated susceptibility test can be excluded only for the frequency band which is extended the operating frequency of the receiver by 5%.
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Portable
device |
Protected device |
Exposed
device |
Submerged
device |
Conducted Susceptibility
(IEC61000-4-6) |
N/A |
3V,¡¡150 kHz-80 MHz
10V, Spot Frequency
(AC port, DC port, I/O port) |
Radiated Susceptibility
(IEC61000-4-3) |
10 V/m, 80 MHz-2 GHz£¨case£© |
N/A |
Fast Transient Burst
(IEC61000-4-4) |
N/A |
2 kV (AC port)
1 kV (I/O port) |
Slow Transient
£¨Surge£© |
1 kV (LINE-GND to AC port) |
| (IEC61000-4-5) |
0.5 kV (LINE-LINE to AC port) |
Voltage Variation
(IEC61000-4-11) |
Voltage¡¾20 % 1.5s, Freq.¡¾10 % 5s
(AC port) |
Voltage Dip
(IEC61000-4-11) |
60s
(AC port) |
ESD
(IEC61000-4-2) |
6 kV Contact Discharge
8 kV Air Discharge
£¨case) |
N/A |
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| <Table 3.¡¡Level of Immunity Test Items> |
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mscho@koreaemc.com
