BS EN 50341-2-2:2019
$167.15
Overhead electrical lines exceeding AC 1 kV – National Normative Aspects (NNA) for BELGIUM (based on EN 50341-1:2012)
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 34 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 11 | 1 Scope 1.1 General 1.2 Field of application 2 Normative references, definitions and symbols 2.1 Normative references |
| 12 | 2.3 Symbols 3 Basis of design 3.2 Requirements of overhead lines 3.2.2 Reliability requirements |
| 13 | 4 Actions on lines 4.1 Introduction 4.3 Wind loads 4.3.1 Field of application and basic wind velocity |
| 14 | 4.3.2 Mean wind velocity |
| 15 | 4.3.3 Mean wind pressure 4.3.4 Turbulence intensity and peak wind pressure 4.4 Wind forces on overhead line components 4.4.1 Wind forces on conductors 4.4.1.1 General 4.4.1.2 Structural factor |
| 16 | 4.4.1.3 Drag factor 4.4.2 Wind forces on insulator sets 4.4.3 Wind forces on lattice towers 4.4.3.1 General 4.4.3.2 Method 1 |
| 17 | 4.4.4 Wind forces on poles 4.5 Ice loads 4.5.1 General 4.6 Combined wind and ice loads 4.6.1 Combined probabilities 4.6.2 Drag factors and ice densities 4.7 Temperature effects 4.8 Security loads 4.8.1 General |
| 18 | 4.8.4 Mechanical conditions of application 4.9 Safety loads 4.9.1 Construction and maintenance loads |
| 20 | 4.9.2 Loads related to the weight of linesmen 4.10 Forces due to short-circuit currents 4.11 Other special forces 4.12 Load cases 4.12.2 Standard load cases |
| 21 | 4.13 Partial factors for actions |
| 22 | 5 Electrical requirements 5.1 Introduction 5.2 Currents 5.2.1 Normal current 5.3 Insulation co-ordination |
| 23 | 5.5 Minimum air clearance distances to avoid flashover 5.5.2 Application of the theoretical method in Annex E 5.6 Load cases for calculation of clearances 5.6.2 Maximum conductor temperature 5.6.3 Wind loads for determination of electric clearances 5.6.3.2 Nominal wind loads for determination of internal and external clearances |
| 24 | 5.6.3.3 Extreme wind loads for determination of internal clearances 5.6.4 Ice loads for determination of electric clearances 5.8 Internal clearances within the span and at the top of support 5.9 External clearances 5.9.1 General |
| 25 | 5.9.2 External clearances to ground in areas remote from buildings, roads, etc. 5.9.3 External clearances to residential and other buildings 5.9.4 External clearances to crossing traffic routes |
| 26 | 5.9.5 External clearances to adjacent traffic routes |
| 27 | 5.9.6 External clearances to other power lines or overhead telecommunication lines 5.9.7 External clearances to recreational areas 5.10 Corona effect 5.10.1 Radio noise 5.10.1.3 Noise limit 5.10.2 Audible noise 5.10.2.3 Noise limit 5.11 Electric and magnetic fields 5.11.1 Electric and magnetic fields under a line |
| 28 | 6 Earthing systems 6.1 Introduction 6.1.3 Earthing measures against lightning effects 6.4 Dimensioning with regard to human safety 6.4.1 Permissible values for touch voltages 7 Supports 7.2 Materials 7.2.1 Steel materials, bolts, nuts and washers, welding consumables |
| 29 | 7.3 Lattice steel towers 7.3.5 Structural analysis 7.3.6 Ultimate limit states 7.3.6.1 General 7.3.6.4 Buckling resistance of members in compression 7.3.6.5 Buckling resistance of members in bending |
| 30 | 7.3.8 Resistance of connections 7.4 Steel poles 7.4.3 Materials 7.4.6 Ultimate limit states 7.4.6.2 Resistance of cross section areas 7.4.7 Serviceability limit states 7.4.8 Resistance of connections 7.4.8.2 Bolts 7.4.8.4 Flanged bolted connections 7.4.8.7 Base plate and holding-down bolts 7.5 Wood poles 7.5.1 General |
| 31 | 7.6 Concrete poles 7.6.1 General 7.6.4 Ultimate limit states 7.6.5 Serviceability limit states 7.7 Guyed structures 7.7.1 General 7.8 Other structures 7.10 Maintenance facilities 7.10.1 Climbing |
| 32 | 8 Foundations 8.2 Basis of geotechnical design 8.2.1 General 8.2.2 Geotechnical design by calculation 9 Conductors and earth-wires 9.1 Introduction 9.2 Aluminium based conductors 9.2.1 Characteristics and dimensions |
| 33 | 9.6 General requirements 9.6.2 Partial factor for conductors 10 Insulators 10.7 Mechanical requirements 11 Hardware 11.6 Mechanical requirements 12 Quality assurance, checks and taking over Annex J (normative) – Angles in lattice steel towers J.4 Buckling resistance of angles in compression J.4.3 Slenderness of members J.4.3.3 Primary bracing patterns J.4.3.3.1 General |
