District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems; German version EN 14419:2003— 28 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems; German and English version EN 14419:2009— 51 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene; German and English version EN 253:2009— 96 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 448:2009— 38 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German and English version prEN 488:2009
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German and English version EN 489:2009— 57 стр.
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures, Insulation resistance— 12 стр.
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems; German and English version EN 14419:2009— 51 стр.
