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BS EN 50341-2-12:2018:2019 Edition

BS EN 50341-2-12:2018:2019 Edition

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Overhead electrical lines exceeding AC 1 kV – National Normative Aspects (NNA) for ICELAND (based on EN 50341-1:2012)

Published By Publication Date Number of Pages
BSI 2019 30
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1.1 General

IS.1 Application to new lines

This Part 2-12 is only applicable to new overhead transmission lines exceeding 1 kV (AC). If deviations and/or extensions to existing transmission lines are planned, the Icelandic NC shall be informed and will decide case by case whether ƍST EN 50341 is applicable or not.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 European Foreword
9 1 Scope
1.1 General
2 Normative references, definitions and symbols
2.1 Normative references
3 Basis of design
3.2 Requirements of overhead lines
3.2.2 Reliability requirements
10 3.2.5 Strength coordination
4 Actions on lines
4.3 Wind loads
4.3.1 Field of application and basic wind velocity
4.3.2 Mean wind velocity
4.3.3 Mean wind pressure
4.4 Wind forces on overhead line components
4.4.1 Wind forces on conductors
4.4.1.1 General
4.4.1.3 Drag factor
11 4.4.3 Wind forces on lattice towers
4.4.3.1 General
4.4.3.2 Method 1
4.4.3.3 Method 2
12 4.5 Ice loads
4.5.2 Ice forces on conductors
13 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
14 4.8.4 Mechanical conditions of application
4.9 Safety loads
4.9.1 Construction and maintenance loads
15 4.12 Load cases
4.12.2 Standard load cases
16 4.13 Partial factors for actions
17 5 Electrical requirements
5.5 Minimum air clearance distances to avoid flashover
5.6 Load cases for calculation of clearances
5.6.3.1 Wind load cases
5.6.3.3 Extreme wind loads for the determination of internal clearances
5.6.4 Ice loads for the determination of electric clearances
5.8 Internal clearances within the span and at the top of support
20 5.9 External clearances
5.9.1 General
5.9.2 External clearances to ground in areas remote from buildings, roads, etc.
5.9.3 External clearances to residential and other buildings
21 5.9.4 External clearances to crossing traffic routes
5.9.5 External clearances to adjacant traffic routes
5.9.6 External clearances to other power lines and overhead telecommunication lines
5.9.7 External clearances to recreational areas (playgrounds, sports areas, etc.)
22 5.10.2 Audible noise
5.10.2.3 Noise Limit
6 Earthing systems
7 Supports
7.2 Materials
7.3 Lattice steel towers
7.3.3 Materials
23 7.3.6 Ultimate limit states
7.3.6.1 General
7.3.6.3 Tension, bending and compression resistance of members
7.3.6.4 Buckling resistance of members in compression
7.3.8 Resistance of connections
7.5 Wood poles
7.5.5 Ultimate limit states
7.5.5.1 Basis
24 7.5.5.2 Calculation of internal forces and moments
7.5.5.3 Resistance of wood elements
7.7 Guyed structures
7.7.4 Ultimate limit states
7.7.4.1 Basis
7.7.6 Design details for guys
25 7.9 Corrosion protection and finishes
7.9.2 Galvanising
8 Foundations
8.2 Basis of geotechnical design
8.2.2 Geotechnical design by calculation
27 8.3 Soil investigation and geotechnical data
28 9 Conductors and earth-wires
9.1 Introduction
29 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 Lattice steel towers
J.5 Design resistance of bolted connections
J.5.1 General

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BS EN 50341-2-12:2018
$142.49