How much does it cost and how long would it take to do EMC testing on a piece of equipment ?

If we take a generic product, let’s say a single IT based unit with a power cable and 2 signal cables and we require compliance with civil EMC requirements then we would be looking at testing to EN 55022 for emission requirements and EN 55024 for immunity requirements. That would mean that conducted emissions and immunity to the cables, Radiated emissions and immunity to the enclosure port of the kit, Fast transient bursts and surges applied to cables Dips and interruptions applied to the power cable and then ESD applied to the enclosure port. To carry out a test program like this would take around 3 to 3 and a half days and would be charged at around £1000 a day. This does assume however that all tests pass. Where tests fail investigation may be required to identify the cause of the failures which can also be done but would take more time and cost. This also assumes that the equipment under test itself operates without any glitches. This can be a big issue as a lot of the equipment that comes in for testing is still at a prototype or development stage and keeping the equipment under test running correctly throughout a test program can be challenging.

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