Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); installation of lightning protection systems— 5 стр.
German construction contract procedures - Part C: General technical specifications for building works - General rules for all kinds of building works— 15 стр.
Contract procedures for building works - Part C: General technical specifications for building works; Low-voltage installation and medium-voltage installation with nominal voltages up to including 36 kV— 4 стр.