ISO 7637-4
ISO/DTS 7637-4 Road Vehicles - Electrical Disturbance by Conduction and Coupling - Part 4: Electrical Transient Conduction along Shielded High Voltage Supply Lines Only
This part of ISO 7637 specifies test methods and procedures to ensure the compatibility to conducted electrical transients of equipment installed on passenger cars and commercial vehicles fitted with electrical systems with voltages higher than 60 VDC and lower than 1.500 VDC and a power-supply isolated from the vehicle-body.
It describes bench tests injection of transients:
- Voltage ripple (square wave) (Pulse A)
- Pulsed sinusoidal disturbances (Pulse B)
- Low frequency sinusoidal disturbances (Pulse C)