I am designing an device that is placed between the main AC network (230V 50Hz) and some consumer devices (PC, TV, etc..). My device is measuring the current drawn by the consumer device, we have a voltage that is proportional to the current.
The problem comes with inrush current. Typical PC (for instance) have DC/DC converter PSU, which have capacity at first from input. When plugged, this cause inrush current to happens. This inrush current causes an over-voltage at input of my circuit and I have to protect it against that. I know that they are inrush limiting options, but this is out of my hands (I don't know how my device will be used).
Are they any norms (IEC, EN, etc) that tells what is the maximum allowed inrush current by appliance class ? What value should I take to dimensionnement my circuit's protections ? Or should I rely on circuit-breaker manufacturer specification (or IEC 60898-1)?