IEC EN 61000-4-4,5 Surge/Transient testing

[Jester]

At work we have a Keytek ECAT system for EMC testing, the problem is that is "booked" for use half the time I need it.

For the -4 and -5 tests (Electrical fast transient/burst immunity, Surge immunity) is it possible to build a suitable test circuit for preliminary testing?

Any links to circuits?

[PartialDischarge]

This is the fastest way:

Use a kitchen magiclick piezo lighter. Take out the metal cover and leave the pointy spark conductor visible. With the distance to the equipment you can control more or less the applied voltage. If a devices passes this test it will do fine in the cert lab.

Source: experience

[jeffreyjames44]

I may be able to find one laying around... which ECAT module are you attempting to build a circuit for?

[T3sl4co1l]

You can use a piezo lighter for -4-2 precomp testing, but it is in no way a substitute for the correct series of tests, especially the ones with coupling planes, or air discharge.

EFT is a rapid sequence of ESD-like pulses transmitted down a cable.  You could perhaps calibrate a relay contact inductive switching circuit to approximate it, that being the primary origin of that hazard in-the-wild.

Surge isn't easy to do without some big thyristors.  The network isn't hard, but charging, switching and coupling it, is.

Also, OP has probably solved their scheduling issue, one way or another, in the past 6 months...

Tim