Macrofab Engineering Podcast

MEP EP#288: We have clearance, ClarencePCB design rules for clearances Stephen's favorite calculator Clearance and creepage According to the IEC (international electrotechnical commission) a global standards organization Clearance - The shortest path between two conductive parts, or between a conductive part and the bounding surface of the equipment, measured through air Creepage - The shortest path between two conductive parts, or between a conductive part and the bounding surface of the equipment, measured along the surface of the insulation IEC/UL 60950-1 Safety standards - has more in depth information on spacing and how to handle mains IPC2221 generic pcb design rules - Has simple information on spacing vs voltage The creepage requirements depend on insulation material group Comparative Tracking Index (CTI) is used to measure the electrical breakdown (tracking) properties of an insulating material. Tracking is an electrical breakdown on the surface of an insulating material wherein