šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
BS EN 50341-1:2012:2013 Edition

BS EN 50341-1:2012:2013 Edition

$215.11

Overhead electrical lines exceeding AC 1 kV – General requirements. Common specifications

Published By Publication Date Number of Pages
BSI 2013 258
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

This European Standard applies to new overhead electric lines with nominal system voltages exceeding AC 1 kV and with rated frequencies below 100 Hz. The extent of the application of this standard by each country in respect of existing overhead lines is subject to the requirements of the National Normative Aspects (NNA) applicable to that country. The specific definition as to the meaning and extent of a ā€œnew overhead lineā€ is to be identified by each National Committee (NC) within their own NNA. At the least, it shall mean a totally new line between two points, A and B. Field of application This European Standard also applies to covered conductor overhead lines and overhead insulated cable systems with nominal system voltage exceeding AC 1 kV up to and including AC 45 kV and with rated frequencies below 100 Hz. Additional requirements and simplifications are specified that apply only for this voltage range. Design and construction of overhead lines with insulated conductors, where internal and external clearances can be smaller than specified in the standard, are not included for lines exceeding 45 kV. Other requirements of the Standard may be applicable, and where necessary NNAs should be consulted. This European Standard is applicable for optical Ground Wires (OPGWs) and optical Conductors (OPCONs). However the standard is not applicable to telecommunication systems which are used on overhead transmission lines either attached to the transmission line conductor/earth wire system (for example wraparound,…) or as separate cables supported by the transmission supports for example All Dielectric Self Supporting (ADSS) or for telecommunication equipment mounted on individual transmission line structures. When such cases are necessary, requirements can be given in the NNAs. This European Standard does not apply to: ? overhead electric lines inside closed electrical areas as defined in EN 61936-1; ? catenary systems of electrified railways, unless explicitly required by another standard. Structure of the European Standard EN 50341-1 Normative references, definitions and symbols with their significations are listed in Clause 2 below. In Clause 3, the basis of design according to this standard is given. The standard specifies in Clauses 4 to 6 the general requirements that shall be met for the structural and electrical design of overhead lines to ensure that the line is suitable for its purpose with due consideration given to safety of public, construction, operation, maintenance and environmental issues. Clauses 7 to 11 of this standard consider the structural and electrical requirements that shall be met for the design, installation and testing of overhead line components including supports, foundations, conductors, insulator strings and hardware as determined by the relevant design parameters of the line. Finally, Clause 12 considers the quality assurance requirements during design, manufacturing and construction. Flowchart 1.1 summarises the structure of the European Standard EN 50341-1 and its Clauses 1 to 12.

PDF Catalog

PDF Pages PDF Title
19 Foreword
20 0 Introduction
0.1 Detailed structure of the standard
0.2 Part 1: General requirements – Common specifications
0.3 Part 2: National Normative Aspects
0.4 A-deviations
0.5 Special national conditions (snc)
0.6 National complements (NCPTs)
0.7 Language
21 1 Scope
1.1 General
1.2 Field of application
1.3 Structure of the European Standard EN 50341-1
22 2 Normative references, definitions and symbols
2.1 Normative references
28 2.2 Definitions
37 2.3 Symbols
45 3 Basis of design
3.1 Introduction
46 3.2 Requirements of overhead lines
3.2.1 Basic requirements
47 3.2.2 Reliability requirements
48 3.2.3 Security requirements
49 3.2.4 Safety requirements
3.2.5 Strength coordination
3.2.6 Additional considerations
3.2.7 Design working life
3.2.8 Durability
3.2.9 Quality assurance
3.3 Limit states
3.3.1 General
3.3.2 Ultimate limit states
50 3.3.3 Serviceability limit states
3.4 Actions
3.4.1 Principal classifications
3.4.2 Classification of actions by their variation in time
51 3.4.3 Classification of actions by their nature and/or the structural response
3.5 Characteristic values
3.5.1 Characteristic value of an action
3.5.1.1 Action (F)
3.5.1.2 Permanent action (G)
3.5.1.3 Variable action (Q)
3.5.1.4 Accidental action (A)
3.5.2 Characteristic value of a material property
3.6 Design values
3.6.1 General
3.6.2 Design value of an action
52 3.6.3 Design value of a material property
3.6.4 Combination value of a variable action
3.7 Partial factor method and design formula
3.7.1 Partial factor method
53 3.7.2 Basic design formula
3.7.3 Total design value of the effect of combined actions
3.7.3.1 General
3.7.3.2 Design situations related to permanent and variable actions
3.7.3.3 Design situations related to permanent, variable and accidental actions
54 3.7.4 Structural design resistance
55 4 Actions on lines
4.1 Introduction
57 4.2 Permanent loads
4.3 Wind loads
4.3.1 Field of application and basic wind velocity
4.3.2 Mean wind velocity
58 4.3.3 Mean wind pressure
59 4.3.4 Turbulence intensity and peak wind pressure
4.3.5 Wind forces on any overhead line component
60 4.4 Wind forces on overhead line components
4.4.1 Wind forces on conductors
4.4.1.1 General
62 4.4.1.2 Structural factor
65 4.4.1.3 Drag factor
4.4.2 Wind forces on insulator sets
66 4.4.3 Wind forces on lattice towers
4.4.3.1 General
4.4.3.2 Method 1
69 4.4.3.3 Method 2
70 4.4.4 Wind forces on poles
71 4.5 Ice loads
4.5.1 General
4.5.2 Ice forces on conductors
72 4.6 Combined wind and ice loads
4.6.1 Combined probabilities
73 4.6.2 Drag factors and ice densities
74 4.6.3 Mean wind pressure and peak wind pressure
4.6.4 Equivalent diameter D of ice covered conductor
4.6.5 Wind forces on support for ice covered conductors
75 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
4.6.6.2 Nominal ice load I3 combined with a low probability wind velocity VIL
76 4.7 Temperature effects
4.8 Security loads
4.8.1 General
4.8.2 Torsional loads
77 4.8.3 Longitudinal loads
4.8.4 Mechanical conditions of application
4.9 Safety Loads
4.9.1 Construction and maintenance loads
4.9.2 Loads related to the weight of linesmen
78 4.10 Forces due to short-circuit currents
4.11 Other special forces
4.11.1 Avalanches, creeping snow
4.11.2 Earthquakes
4.12 Load cases
4.12.1 General
79 4.12.2 Standard load cases
82 4.13 Partial factors for actions
83 5 Electrical requirements
5.1 Introduction
84 5.2 Currents
5.2.1 Normal current
5.2.2 Short-circuit current
85 5.3 Insulation co-ordination
5.4 Classification of voltages and overvoltages
5.4.1 General
5.4.2 Representative power frequency voltages
86 5.4.3 Representative temporary overvoltages
5.4.4 Representative slow-front overvoltages
87 5.4.5 Representative fast-front overvoltages
5.5 Minimum air clearance distances to avoid flashover
5.5.1 General
88 5.5.2 Application of the theoretical method in Annex E
91 5.5.3 Empirical method based on European experience
92 5.6 Load cases for calculation of clearances
5.6.1 Load conditions
5.6.2 Maximum conductor temperature
5.6.3 Wind loads for determination of electric clearances
5.6.3.1 Wind load cases
93 5.6.3.2 Nominal wind loads for determination of internal and external clearances
5.6.3.3 Extreme wind loads for determination of internal clearances
5.6.4 Ice loads for determination of electric clearances
5.6.5 Combined wind and ice loads
5.7 Coordination of conductor positions and electrical stresses
94 5.8 Internal clearances within the span and at the top of support
98 5.9 External clearances
5.9.1 General

Related products

BS EN 50341-1:2012
$215.11