Update creepage for IEC 61010-2-032 interpretation

Hello Mr. @Barley_Li and the DigiKey community,

We have been working with your components for several years now and I saw that you were very active on the Digikey forum, particularly in terms of standards (IEC 61010-1, IEC 61010-2-032, 031 etc.)

So I have a question…

We will update our products according to the latest IEC 61010-2-032: 2023

And in this one since 2019 there has been an update where it is written, I quote:

“Reduced creepage distances can comply with material group I for all insulating materials. »

This is subject to interpretation, I need your thoughts on the top.

Suppose I have a measuring device that is 1000V CAT III pollution grade 2 that is in the final stages of finalization for test passes for the IEC.

​ The device is made of category III materials because we cannot find the indication of its CTI.


So it corresponds to table K.3 of 61010-1:

But following the 2019 update:

“Reduced CREEPAGE DISTANCES are allowed to be according to material group I for all insulating materials. »

Can we say that the creepage distance can go from 10 to 8 mm?

Thank you all for taking the time to read me, and if you have any information don’t hesitate, have a good day :slight_smile: