BS EN 50341-2-1:2020
$215.11
Overhead electrical lines exceeding AC 1 kV – National Normative Aspects (NNAs) for Austria (based on EN 50341-1:2012)
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 102 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 10 | European foreword |
| 11 | 1 Scope 2 Normative references, definitions and symbols 2.1 Normative references |
| 13 | 2.2 Definitions |
| 14 | 2.3 Symbols |
| 15 | 3 Basis of design 3.2 Requirements of overhead electrical lines 3.2.2 Reliability requirements 4 Actions on overhead electrical lines 4.3 Wind loads 4.3.1 Field of application and basic wind velocity 4.3.2 Mean wind velocity |
| 16 | 4.3.3 Mean wind pressure 4.3.4 Turbulence intensity and peak wind pressure 4.4 Wind loads on overhead line components 4.4.1 Wind loads on conductors 4.4.1.1 General 4.4.1.2 Structural factor 4.4.1.3 Drag factor 4.4.2 Wind loads on insulator sets |
| 17 | 4.4.3 Wind loads on lattice towers 4.4.3.1 General 4.4.4 Wind loads on poles 4.5 Ice loads 4.5.1 General 4.5.2 Ice loads on conductors |
| 18 | 4.6 Combined wind and ice loads 4.6.2 Drag factors and ice densities 4.6.3 Mean wind pressure and peak wind pressure 4.6.6 Combination of wind velocities and ice loads 4.6.6.1 Extreme ice load IT in combination with a high probability wind velocity VIH 4.7 Temperature effects 4.11 Other special loads |
| 19 | 4.12 Load cases 4.12.2 Standard load cases |
| 28 | 4.13 Partial factor for actions 5 Electrical requirements 5.2 Currents 5.2.1 Nominal current |
| 29 | 5.4 Classification of voltages and overvoltages 5.4.2 Representative power frequency voltages 5.5 Minimum air clearance distances to avoid flashover 5.5.1 General 5.5.3 Empirical method based on European experience 5.6 Load cases for the calculation of clearances 5.6.1 Load conditions 5.6.2 Highest conductor temperature |
| 30 | 5.6.3 Wind loads for determination of electrical clearances 5.6.3.1 Wind load cases 5.6.4 Ice loads for determination of electrical clearances 5.6.5 Combined wind and ice loads 5.8 Internal clearances within the span and at the top of the support |
| 32 | 5.9 External clearances 5.9.1 General |
| 36 | 5.9.2 External clearances to ground in areas remote from building, roads, etc. |
| 39 | 5.9.3 External clearances to residential and other buildings |
| 54 | 5.9.4 External clearances to crossing traffic routes |
| 66 | 5.9.6 External clearances to other power lines or overhead telecommunication lines |
| 73 | 5.9.7 External clearances to recreational areas (playgrounds, sports grounds, etc.) |
| 75 | 5.11 Electrical and magnetic fields 5.11.1 Electrical and magnetic fields under a line 6 Earthing systems 6.4 Dimensioning with regard to human safety 6.4.1 Permissible values for touch voltages 6.4.2 Touch voltage limits at different locations |
| 76 | 6.4.3 Basic design of earthing systems with regard to permissible touch voltages 7 Supports 7.1 Initial design considerations 7.1.1 Introduction 7.3 Lattice steel towers |
| 77 | 7.3.6.4 Buckling resistance of members in compression 7.4 Steel poles 7.4.7 Serviceability of limit states (EN 199311:2005, Section 7) 7.4.8 Resistance of connections 7.4.8.2 Bolts (other than holding-down bolts) 7.5 Wood poles 7.5.3 Materials 7.5.4 Durability 7.5.5 Ultimate limit states 7.5.5.2 Calculation of internal forces and moments |
| 78 | 7.5.5.3 Resistance of wood elements 7.5.6 Serviceability limit states 7.5.7 Resistance of connections |
| 79 | 7.6 Concrete poles 7.6.4 Ultimate limit states 7.6.5 Serviceability limit states 7.6.6 Design assisted by testing 7.7 Guyed structures 7.7.6 Design details for guys |
| 80 | 7.8 Other structures 7.10 Maintenance facilities 7.10.3 Safety requirements 8 Foundations 8.1 Introduction 8.2 Basis of geotechnical design (EN 1997-1:2004, Section 2) 8.2.2 Geotechnical design by calculation |
| 81 | 8.2.3 Design by prescriptive measures 8.6 Interactions between support foundations and soil 9 Conductors and earth wires 9.1 Introduction 9.2 Aluminium based conductors 9.3 Steel based conductors 9.3.1 Characteristics and dimensions 9.3.6 Test requirements 9.5 Conductors and earth wires with optical fibres for telecommunication circuits |
| 82 | 9.6 General requirements |
| 84 | 9.6.3 Minimum cross sections |
| 85 | 9.8 Selection, delivery and installation of conductors 10 Insulators 10.2 Standard electrical requirements 10.7 Mechanical requirements 10.10 Characteristics and dimensions of insulators 10.13 Routine test requirements 11 Hardware 11.2 Electrical requirements 11.2.1 Requirements applicable to all fittings |
| 86 | 11.6 Mechanical requirements 11.9 Characteristics and dimensions of fittings 12 Quality assurance, checks and taking-over |
| 88 | Annex G (normative)Calculation methods for earthing systems |
| 90 | Annex H (informative)Installation and measurements of earthing systems |
| 92 | Annex J(normative)Angles in lattice steel towers |
| 93 | Annex M(informative)Geotechnical and structural design of foundations |
| 94 | Annex S(normative)Geotechnical foundation design according to practically proved methods based on characteristic loads |
| 99 | Annex T(normative)Supplementary provisions for the design and realisation of concrete and reinforced concrete foundations |
| 100 | Annex U(normative)Stranded-conductors and cables with telecommunication components carried along on supports of overhead lines |
