Kaanel ka: Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Part 6, Effectiveness of residual current devices (RCD) in TT, TN and IT systems (IEC 61557-6:2007). Osa teksti inglise ja prantsuse k. Bibliogr. lk. 13. Avaldatud eesti keeles: jaanuar 2009