Symbol 5225 from IEC 60417 - Title/Meaning: Electric shaver outlet Function/description: To identify socket outlets for electric shavers and similar low-power apparatus.
Additional information: 
This symbol may also be applied on safety transformers intended to supply such socket outlets
Published in: Supplement C, 1977
Own work using: iso.org/obp/graphics/grs/0ef97dd6-b332-4ed3-b604-9ca2aeabf80b 200.png
Vectorization:  Mrmw