Home and Building Electronic Systems (HBES) - Part 5-1: Media and media dependent layers - Power line for HBES Class 1; German version EN 50090-5-1:2005, text English— 49 стр.
Home and Building Electronic Systems (HBES) - Part 5-2: Media and media dependent layers - Network based on HBES Class 1, Twisted Pair; German version EN 50090-5-2:2004, text English— 77 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Installation of lightning protection, surge protection and earthing systems— 19 стр.
German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Electrical installations, safety systems and information technology systems— 20 стр.