If you are looking for aviation-specific "technical manuals" from the European regulator, EASA provides several types of technical documentation and "Easy Access Rules" in PDF format. EASA Technical Manual - Resource Library

: The manual is divided into 13 sections, including technical data on three-phase stators, magnet and lead wire (Section 6), and temperature classification for insulation systems. Availability :

: It is available as a free PDF download for EASA members, who can download the entire manual or individual sections.

: A printed version is available for purchase through the EASA Online Store .

2. European Union Aviation Safety Agency (EASA) Publications