• Madalpingelised aparaadikoosted. Osa 3, Jaotuskilbid, mida tohivad käsitada tavaisikud = Low-voltage switchgear and controlgear assemblies. Part 3, Distribution boards intended to be operated by ordinary persons (DBO) (IEC 61439-3:2012)2013 https://www.ester.ee/record=b2940430*est