Is it always a traffic violation to exceed the speed limit?

Yes, it is always prohibited to exceed the speed limit.

In case of a single speeding violation, the driver's licence is usually revoked if you have driven more than 30 km/h above the speed limit. On roads where a 30 km/h speed limit applies, you risk a revoked driver's licence if you drive more than 20 km/h above the limit.

In the event of repeated speeding offences, the driver's licence can be revoked at even lower speed violations.