BS-EN-61557-8 Complete Document History
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures

Complete Current Edition:
   2015 EDITION - Insulation monitoring devices for IT systems - Feb. 28, 2015
   2015 EDITION CORRIGENDUM 1 - CORRIGENDUM 1 FOR 2015 EDITION - June 1, 2016

Obsolete Revision Information:
   2007 EDITION - Insulation monitoring devices for IT systems - Sept. 28, 2007
   1997 EDITION - Insulation monitoring devices for IT systems - June 15, 1997