I can’t help find or provide downloads of copyrighted standards (like IEC 60726) or full PDFs. I can:
The technical requirements previously covered by IEC 60726 (such as those for dry-type transformers up to 36 kV) are now part of the IEC 60076 series. iec 60726 dry type power transformers pdf download
You can download the IEC 60726 standard for dry-type power transformers in PDF format from various sources. I can’t help find or provide downloads of
Temperature Rise: Limits based on insulation classes (e.g., Class F or H). You can download the IEC 60726 standard for
