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BS EN 50341-2-1:2022:2023 Edition

BS EN 50341-2-1:2022:2023 Edition

$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 2023 100
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PDF Catalog

PDF Pages PDF Title
2 undefined
8 European Foreword
Untitled
9 1 Scope
2 Normative references, definitions and symbols
2.1 Normative references
10 2.2 Definitions
12 2.3 Symbols
13 3 Basis of design
3.2 Requirements of overhead lines
3.2.2 Reliability requirements
4 Actions on lines
4.3 Wind loads
4.3.1 Field of application and basic wind velocity
4.3.2 Mean wind velocity
14 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
4.4.1.3 Drag factor
4.4.2 Wind forces on insulator sets
15 4.4.3 Wind forces on lattice towers
4.4.3.1 General
4.4.4 Wind forces on poles
4.5 Ice loads
4.5.1 General
4.5.2 Ice forces on conductors
16 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 combined with a high probability wind velocity VIH
4.7 Temperature effects
4.11 Other special forces
4.11.3 Forces as a result of enhanced use
17 4.12 Load cases
4.12.2 Standard load cases
26 4.13 Partial factors for actions
5 Electrical requirements
5.2 Currents
5.2.1 Normal current
27 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 Maximum conductor temperature
28 5.6.3 Wind loads for determination of electric clearances
5.6.3.1 Wind load cases
5.6.4 Ice loads for determination of electric clearances
5.6.5 Combined wind and ice loads
29 5.8 Internal clearances within the span and at the top of support
30 5.9 External clearances
5.9.1 General
34 5.9.2 External clearances to ground in areas remote from buildings, roads, etc.
37 5.9.3 External clearances to residential and other buildings
52 5.9.4 External clearances to crossing traffic routes
64 5.9.6 External clearances to other power lines or overhead telecommunication lines
71 5.9.7 External clearances to recreational areas (playgrounds, sports areas, etc.)
73 5.11 Electric and magnetic fields
5.11.1 Electric 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
74 6.4.3 Basic design of earthing systems with regard to permissible touch voltag
7 Supports
7.1 Initial design considerations
7.1.1 Introduction
7.3 Lattice steel towers
75 7.3.6.4 Buckling resistance of members in compression
7.4 Steel poles
7.4.7 Serviceability limit states (EN 199311:2005 ā€“ chapter 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
76 7.5.5.3 Resistance of wood elements
7.5.6 Serviceability limit states
7.5.7 Resistance of connections
77 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
78 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 ā€“ Section 2)
8.2.2 Geotechnical design by calculation
79 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 ground wires containing optical fibre telecommunication circuits
80 9.6 General requirements
82 9.6.3 Minimum cross-sections
83 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
84 11 Hardware
11.2 Electrical requirements
11.2.1 Requirements applicable to all fittings
11.6 Mechanical requirements
11.9 Characteristics and dimensions of fittings
12 Quality assurance, checks and taking-over
86 Annex G (normative)Calculation methods for earthing systems
88 Annex H (informative)Installation and measurements of earthing systems
90 Annex J(normative)Angles in lattice steel towers
91 Annex M(informative)Geotechnical and structural design of foundations
92 Annex S(normative)Geotechnical foundation design according to practically proved methods based on characteristic loads
97 Annex T(normative)Supplementary provisions for the design and realisation of concrete and reinforced concrete foundations
98 Annex U(normative)Stranded-conductors and cables with telecommunication components carried along on supports of overhead lines

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