Teseq NSG 3040, Руководство пользователя

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NSG 3040 EMC test system
14.6 Coupling decoupling networks for data lines
14.6.1 Burst EFT coupling clamp NSG 3425 - and safety cover INA 3825
The EFT/bursts coupling clamp CDN 3425 is designed for the injection of fast
transients into signal and data lines as specified in basic standard IEC 61000-4-4.
The EFT/bursts coupling clamp CDN 3425 is to be used with a IEC 61000-4-4
compliant EFT/burst generator.
The IEC/EN 61000-4-4 standard also permits the capacitive coupling method
to be used for pulse injection into AC and DC power supply cables when no
suitable decoupling network is present.
The coupling capacitance between the coupling clamp and the cable laid in it
depends on the type of cable, its diameter and various other factors such as
screening, etc.
The option INA 3825 – Safety cover with Interlock is available which avoids the
user to touch the conductive plate of the CDN 3425 while EFT/burst pulses get
applied.
Preparation for operation
The test rig is to be constructed in accordance with IEC/EN 61000-4-4 with
special reference to:
Operation preferably in a screened room to protect the environment
Distances to the EUT and peripherals to be as specified in the standard.
Good and large area contact to the earth plane. Tests on uninsulated cables
is not permissible.