A: No. The IEC does not release free copies. Some standardization bodies (e.g., NEN in Netherlands) offer "read-only" online viewing, but you cannot download or print. The only true IEC 62477-2 PDF is the paid one.
The story of IEC 62477-2 is an interesting one, highlighting the importance of safety and performance in power transformer design and operation. By providing a comprehensive framework for safety and performance, the standard has helped to reduce the risk of transformer failures and accidents, saving industries and economies significant costs. Iec 62477-2 Pdf