What is creepage distance of insulator?
The creepage distance for insulators is the shortest distance along the insulator surface between the metal parts at each end of the insulator. Creepage distance can also be refer as leakage distance for insulators. If the surface of the insulator is clean, smooth and well gazed the dust particles tend to fall down.
What is PCB creepage and clearance?
Clearance – Clearance is the shortest distance in the air between two conductors. You can think of this as the line of sight distance between two mountain tops. Creepage – Creepage is the shortest distance to another conductor along the surface of the insulating material of your PCB.
How are creepage and clearance distance measured in a PCB?
To help mitigate that risk, there are standards for two primary spacing measurements in your PCB design: clearance and creepage distance. When the voltage between two points overcomes the breakdown voltage, arcing can occur, damaging your product creating a safety hazard for users.
What are the high voltage clearance standards for PCB?
This standard is full of requirements on material quality, traceability, layout guidelines to ensure quality, and much more. You can also use a high voltage clearance calculator based on the IPC-2221 standards to determine the minimum spacing you should use for your PCB.
What is the minimum PCB line / trace spacing?
Sierra Circuits has developed certain standards based on the copper weight that mention required PCB line spacing for proper operation. Trace width and spacing which can be manufactured are given in the table. Trace width and spacing based on Copper for inner and outer PCB layers. What is the minimum PCB line/trace spacing?
What’s the lowest insulation level for a PCB?
There are six categories from 0 to 5 based on the breakdown value of the material. The mandatory insulation levels for products are based on these CTI categories. Category 5 is the lowest, with values less than 100 V. With breakdowns of 600+ V, Category 0 has the most robust, and often expensive, material options.