IEC 61000-4-5 (Edition 3.1)
Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement techniques - Surge immunity test
EMC Tests are tests that check the electromagnetic compatibility of a device or system. In the Electromagnetic Compatibility Test (EMC Test), it is aimed to operate any electrical and electronic device or system without being affected by and affecting other devices or systems in the environment. EMC Test is generally examined in two categories as Immune EMC Test and Emission EMC Test. Test limit values and test methods specified in the standards used in EMC Test applications may vary according to the features of the device or system.
Immunity Test Against Sudden Voltage Rises specified in IEC 61000-4-5 standard is one of the Electromagnetic Compatibility (EMC) immunity tests (EMC Test).
IEC 61000-4-5 standard covers electromagnetic compatibility (EMC) immunity rules and test methods for electrical and electronic devices exposed to unidirectional sudden impacts caused by overvoltages occurring during switching and lightning transients. .
The purpose of the IEC 61000-4-5 standard is to establish a common and repeatable basis for the evaluation of the operating qualities of electrical and electronic devices in case of sudden rises.
Immunity Test Against Sudden Rises (SURGE):
The Immunity Test (SURGE Test) against Sudden Rises evaluates the operating qualities and performance of the electrical and electronic devices in switching transitions and if they are exposed to lightning regime types.
Test Levels of Immunity Test (SURGE Test) from Electromagnetic Compatibility Tests (EMC Test) Against Sudden Rises are as follows;
|
Level |
Open circuit vooltage kV |
|
|
Line-to-Line |
Line-to-Ground |
|
|
1 |
- |
0,5 |
|
2 |
0,5 |
1 |
|
3 |
1 |
2 |
|
4 |
2 |
4 |
|
x |
Special |
Special |
|
|
"X" is a free level. This level should be specified in the device introduction. |
|
When performing the Immunity Test Against Instantaneous Elevations (SURGE Test), the tested device is placed on a reference ground plane and is insulated from this plane with an insulating material 0.1 m thick.
Against sudden spikes (SURGE), the device tested in the immune EMC test is applied to polarity (+, -) polarizations at 0, 90, 180, 270 degrees, in certain repetitions as Line-to-Line and Line-to-Ground. These values may vary according to the EMC test standard that must be complied with for the product. Under these conditions, it is observed whether the device tested is working properly.