Transformer Creepage Distance tolerance 1

[kamalakamala]

We are manufactures of transformer and we order bushing from bushing manufactures. I need to know manufacturing tolerance applicable for this parameter “ creepage distance” . For example if we order a bushing with CD with 990mm and if we found actual measurement as 985mm, should we accept those or should we reject?

 

[RRaghunath]

Customers generally specify minimum creepage distance. Hence, there cannot be any negative tolerance. Check the customer specs.