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Increase Creepage or Slot

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raj_pcbtech

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how do i increase by creepage distance

Hello All

16_1247183379.gif


This is SMPS design. From attached image you can find the requirement. Can anyone help me to figure out what do they need exactly? Please explain what is creepage.

Any help would be highly appreciated.

Regards
Rajkumar R
 

creepage between trace

Going by the defination,

Creepage :-Creepage distance is the shortest path between two conducting parts of an electrical or electronic circuit measured along the surface of the insulator.
Its significance is great. The distance may mean the breakdown of an insulation specially in high voltage lines. It could mean a spark-over the voltage is high for the creepage distance set.


Hence you need to understande wt is the insulation voltage u want , and between which tracks. Normally i choose 1.5mm/KV. All the best
 

pcb trace creepage

i feel they need more clearence between ground pour and the trace as shown,,
in your case slot is difficult to provide ,if possible move the component
 

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