EN 50341-1:2012

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Overhead electrical lines exceeding AC 1 kV - Part 1: General requirements - Common specifications

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Published date: 21-12-2012

Publisher: European Committee for Standards - Electrical

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Foreword
0 Introduction
1 Scope
2 Normative references, definitions and symbols
3 Basis of design
4 Actions on lines
5 Electrical requirements
6 Earthing systems
7 Supports
8 Foundations
9 Conductors and earth-wires
10 Insulators
11 Hardware
12 Quality assurance, checks and taking-over
Annex A (informative) - Strength coordination
Annex B (informative) - Conversion of wind velocities and
        ice loads
Annex C (informative) - Application examples of wind
        loads - Special forces
Annex D (informative) - Statistical data for the Gumbel
        distribution of extremes
Annex E (normative) - Theoretical method for calculating
        minimum air clearances
Annex F (informative) - Empirical method for calculating
        mid span clearances
Annex G (normative) - Calculation methods for earthing
        systems
Annex H (informative) - Installation and measurements
        of earthing systems
Annex J (normative) - Angles in lattice steel towers
Annex K (normative) - Steel poles
Annex L (informative) - Design requirements for supports
        and foundations
Annex M (informative) - Geotechnical and structural design
        of foundations
Annex N (informative) - Conductors and overhead earth wires
Annex P (informative) - Tests on insulators and insulators sets
Annex Q (informative) - Insulators
Annex R (informative) - Hardware

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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 “new overhead line” 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.

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Committee	CLC/TC 11
Development Note	Supersedes PREN 50341-1 and EN 50423-1. (01/2013) Supersedes EN 50423-3. (05/2017)
Document Type	Standard
ISBN
Pages
Published
Publisher	European Committee for Standards - Electrical
Status	Current
Supersedes	EN 50341-2 : 2001 COR 2006 PREN 50341-1 : DRAFT 2012 EN 50341-3 : 2001 COR 2010 EN 50423-1:2005 EN 50341-3:2001 EN 50423-3 : 2005 COR 2010 EN 50423-2:2005

National Adoptions - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
NF EN 50341-1 : 2015	Identical
NBN EN 50341-1 : 2013	Identical
VDE 0210-1 : 2013	Identical
NEN EN 50341-1 : 2013	Identical
BS EN 50341 1-3 CD : 2001	Identical
UNE-EN 50341-1:2017	Identical
BS EN 50341-1:2012	Identical
DIN EN 50341-1 : 2013	Identical
PN EN 50341-1 : 2013	Identical
I.S. EN 50341-1:2012	Identical
CEI EN 50341-1 : 2013	Identical
SN EN 50341-1 : 2012	Identical
OVE EN 50341-1: 2020 04 01	Identical
UNE-EN 50341-1:2012	Identical

Standards Referenced By This Book - (Show below) - (Hide below)

PREN 50119 : DRAFT 2017	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
11/30215604 DC : 0	BS IEC 60913 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
17/30341013 DC : DRAFT AUG 2017	BS EN 50119 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
CEI EN 50174-3 : 2014	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
I.S. EN 50119:2009	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
I.S. EN 50341-3:2006	OVERHEAD ELECTRICAL LINES EXCEEDING AC 45 KV - PART 3: SET OF NATIONAL NORMATIVE ASPECTS
12/30260552 DC : 0	BS EN 50174-3:201X - INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
NF EN 50119 : 2010 AMD 1 2013	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
BS EN 50423-1:2005	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV UP TO AND INCLUDING AC 45 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
BS EN 50119 : 2009	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
PREN 50174-3 : DRAFT 2012	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
EN 50174-3:2013/A1:2017	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
I.S. EN 50174-3:2013	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
IEC 60913:2013	Railway applications - Fixed installations - Electric traction overhead contact lines
I.S. EN 50119:2020	Railway applications - Fixed installations - Electric traction overhead contact lines
BS EN 50341-3:2001	Overhead electrical lines exceeding AC 45 kV Set of National Normative Aspects
EN 50119 : 2009 AMD 1 2013	RAILWAY APPLICATIONS - FIXED INSTALLATIONS - ELECTRIC TRACTION OVERHEAD CONTACT LINES
I.S. EN 50423-1:2005	OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV UP TO AND INCLUDING AC 45 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
BS EN 50174-3 : 2013	INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 3: INSTALLATION PLANNING AND PRACTICES OUTSIDE BUILDINGS
EN 50341-3 : 2001 COR 2010	OVERHEAD ELECTRICAL LINES EXCEEDING AC 45 KV - PART 3: SET OF NATIONAL NORMATIVE ASPECTS

Standards Referencing This Book - (Show below) - (Hide below)

IEC TR 61597:1995	Overhead electrical conductors - Calculation methods for stranded bare conductors
ISO 12494:2017	Atmospheric icing of structures
EN 1998-6:2005	Eurocode 8: Design of structures for earthquake resistance - Part 6: Towers, masts and chimneys
IEC 61472:2013	Live working - Minimum approach distances for a.c. systems in the voltage range 72,5 kV to 800 kV - A method of calculation
IEC 61854:1998	Overhead lines - Requirements and tests for spacers
EN 50189:2000	Conductors for overhead lines - Zinc coated steel wires
IEC 61395:1998	Overhead electrical conductors - Creep test procedures for stranded conductors
ISO 2063:2005	Thermal spraying Metallic and other inorganic coatings Zinc, aluminium and their alloys
IEC 60038:2009	IEC standard voltages
IEC 61325:1995	Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria
EN 60372:2004	Locking devices for ball and socket couplings of string insulator units - Dimensions and tests
IEC 61936-1:2010+AMD1:2014 CSV	Power installations exceeding 1 kV a.c. - Part 1: Common rules
EN 12843 : 2004	PRECAST CONCRETE PRODUCTS - MASTS AND POLES
IEC TS 60479-1:2005+AMD1:2016 CSV	Effects of current on human beings and livestock - Part 1: Generalaspects
IEC 60826:2017	Design criteria of overhead transmission lines
IEC 61466-1:2016	Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V - Part 1: Standard strength and end fittings
EN 50326 : 2002	Conductors for overhead lines - Characteristics of greases
EN 61472:2013/AC:2015	LIVE WORKING - MINIMUM APPROACH DISTANCES FOR A.C SYSTEMS IN THE VOLTAGE RANGE 72,5 KV TO 800 KV - A METHOD OF CALCULATION (IEC 61472:2013)
EN 1991-1-6:2005/AC:2013	Eurocode 1 - Actions on structures Part 1-6: General actions - Actions during execution
IEC 60724:2000+AMD1:2008 CSV	Short-circuit temperature limits of electric cables with rated voltages of 1 kV (U_m = 1,2 kV) and 3 kV (U_m = 3,6 kV)
EN 14229:2010	Structural timber - Wood poles for overhead lines
EN 50397-1:2006	Covered conductors for overhead lines and the related accessories for rated voltages above 1 kV a.c. and not exceeding 36 kV a.c. - Part 1: Covered conductors
IEC 60305:1995	Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
IEC 60050-601:1985	International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
EN 1993-1-5:2006/A1:2017	EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 1-5: PLATED STRUCTURAL ELEMENTS
IEC 60050-471:2007	International Electrotechnical Vocabulary (IEV) - Part 471: Insulators
EN ISO 1461:2009	Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods (ISO 1461:2009)
EN 60794-4-10:2014	Optical fibre cables - Part 4-10: Family specification - Optical ground wires (OPGW) along electrical power lines
IEC 60050-441:1984	International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
IEC TS 60815-2:2008	Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems
IEC 62004:2007	Thermal-resistant aluminium alloy wire for overhead line conductor
IEC 60383-1:1993	Insulators for overhead lines with a nominal voltage above 1000 V - Part 1: Ceramic or glass insulator units for a.c. systems - Definitions, test methods and acceptance criteria
IEC 60794-1-2:2017	Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance
EN 60794-1-1:2016	Optical fibre cables - Part 1-1: Generic specification - General
EN 62004:2009	Thermal-resistant aluminium alloy wire for overhead line conductor
IEC 61109:2008	Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
IEC 60909-0:2016	Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
EN 62219:2002	Overhead electrical conductors - Formed wire, concentric lay, stranded conductors
IEC 60794-4:2003	Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines
EN 60433:1998	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic insulators for a.c. systems - Characteristics of insulator units of the long rod type
ISO 1461:2009	Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
IEC 60794-4-10:2014	Optical fibre cables - Part 4-10: Family specification - Optical ground wires (OPGW) along electrical power lines
EN 50183:2000	Conductors for overhead lines - Aluminium-magnesium-silicon alloy wires
IEC 60720:1981	Characteristics of line post insulators
EN 60383-1:1996/A11:1999	INSULATORS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE ABOVE 1 KV - CERAMIC OR GLASS INSULATOR UNITS FOR A.C. SYSTEMS - DEFINITIONS, TEST METHODS AND ACCEPTANCE CRITERIA
EN 60305:1996	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
EN 61325 : 1995	Insulators for overhead lines with a nominal voltage above 1 kV - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria
IEC 60794-1-1:2015	Optical fibre cables - Part 1-1: Generic specification - General
EN 1090-1:2009+A1:2011	Execution of steel structures and aluminium structures - Part 1: Requirements for conformity assessment of structural components
IEC 61211:2004	Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1 000 V - Impulse puncture testing in air
IEC TR 60797:1984	Residual strength of string insulator units of glass or ceramic material for overhead lines after mechanical damage of the dielectric
IEC 61952:2008	Insulators for overhead lines - Composite line post insulators for A.C. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
EN 60507:2014	Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
EN 61936-1 : 2010 AMD 1 2014	POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES (IEC 61936-1:2010/A1:2014)
EN 61466-1:2016	Composite string insulator units for overhead lines with a nominal voltage greater than 1000 V - Part 1: Standard strength classes and end fittings
EN 60889:1997	Hard-drawn aluminium wire for overhead line conductors
HD 474 : 200S1	DIMENSIONS OF BALL AND SOCKET COUPLINGS OF STRING INSULATOR UNITS
IEC 60865-1:2011	Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
IEC 60889:1987	Hard-drawn aluminium wire for overhead line conductors
EN 61854:1998	Overhead lines - Requirements and tests for spacers
CISPR TR 18-3:2017	Radio interference characteristics of overhead power lines and high-voltage equipment - Part 3: Code of practice for minimizing the generation of radio noise
IEC 60437:1997	Radio interference test on high-voltage insulators
EN ISO 9001:2015	Quality management systems - Requirements (ISO 9001:2015)
IEC 60050-466:1990	International Electrotechnical Vocabulary (IEV) - Part 466: Overhead lines
EN 60437:1997	Radio interference test on high-voltage insulators
EN 60909-0:2016	Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
EN 60865-1:2012	Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
IEC 60372:1984	Locking devices for ball and socket couplings of string insulator units - Dimensions and tests
EN 1997-2:2007/AC:2010	EUROCODE 7 - GEOTECHNICAL DESIGN - PART 2: GROUND INVESTIGATION AND TESTING
EN 60071-1:2006/A1:2010	INSULATION CO-ORDINATION - PART 1: DEFINITIONS, PRINCIPLES AND RULES
IEC 60652:2002	Loading tests on overhead line structures
IEC 60287-3-1:2017	Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions
EN 61897:1998	Overhead lines - Requirements and tests for Stockbridge type aeolian vibration dampers
ISO 9001:2015	Quality management systems - Requirements
EN 60794-1-2:2017/AC:2017-07	OPTICAL FIBRE CABLES - PART 1-2: GENERIC SPECIFICATION - BASIC OPTICAL CABLE TEST PROCEDURES - GENERAL GUIDANCE (IEC 60794-1-2:2017)
EN ISO 2063:2005	Thermal spraying - Metallic and other inorganic coatings - Zinc, aluminium and their alloys (ISO 2063:2005)
EN 50182:2001/AC:2013	CONDUCTORS FOR OVERHEAD LINES - ROUND WIRE CONCENTRIC LAY STRANDED CONDUCTORS
EN 1993-3-1:2006/AC:2009	EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 3-1: TOWERS, MASTS AND CHIMNEYS - TOWERS AND MASTS
CISPR TR 18-2:2017	Radio interference characteristics of overhead power lines and high-voltage equipment - Part 2: Methods of measurement and procedure for determining limits
IEC 60071-2:1996	Insulation co-ordination - Part 2: Application guide
EN 60652:2004	Loading tests on overhead line structures
EN 1993-1-3:2006/AC:2009	EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 1-3: GENERAL RULES - SUPPLEMENTARY RULES FOR COLD-FORMED MEMBERS AND SHEETING
EN 60071-2:1997	Insulation co-ordination - Part 2: Application guide
IEC 62219:2002	Overhead electrical conductors - Formed wire, concentric lay, stranded conductors
EN 60794-4:2003	Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines
EN 1995-1-1:2004/A2:2014	EUROCODE 5: DESIGN OF TIMBER STRUCTURES - PART 1-1: GENERAL - COMMON RULES AND RULES FOR BUILDINGS
EN 1997-1:2004/A1:2013	EUROCODE 7: GEOTECHNICAL DESIGN - PART 1: GENERAL RULES
IEC 61232:1993	Aluminium-clad steel wires for electrical purposes
IEC 60433:1998	Insulators for overhead lines with a nominal voltage above 1 000 V - Ceramic insulators for a.c. systems - Characteristics of insulator units of the long rod type
EN 61211:2005	Insulators of ceramic material or glass for overhead lines with a nominal voltage greater than 1 000 V - Impulse puncture testing in air
EN 61109:2008	Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
EN 1992-1-1:2004/A1:2014	EUROCODE 2: DESIGN OF CONCRETE STRUCTURES - PART 1-1: GENERAL RULES AND RULES FOR BUILDINGS
IEC 60507:2013	Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
EN 61395:1998	Overhead electrical conductors - Creep test procedures for stranded conductors
EN 50522:2010	Earthing of power installations exceeding 1 kV a.c.
IEC 60071-1:2006+AMD1:2010 CSV	Insulation co-ordination - Part 1: Definitions, principles and rules
EN 1990:2002/A1:2005/AC:2010	EUROCODE - BASIS OF STRUCTURAL DESIGN
EN 1991-1-4:2005/A1:2010	EUROCODE 1: ACTIONS ON STRUCTURES - PART 1-4: GENERAL ACTIONS - WIND ACTIONS
EN 1993-1-8:2005/AC:2009	EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-8: DESIGN OF JOINTS
IEC 60120:1984	Dimensions of ball and socket couplings of string insulator units
IEC 61466-2:1998+AMD1:2002 CSV	Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V - Part 2: Dimensional and electrical characteristics
IEC TS 60815-1:2008	Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles
EN 61232:1995/A11:2000	ALUMINIUM CLAD STEEL WIRES FOR ELECTRICAL PURPOSES
EN 61773:1996	Overhead lines - Testing of foundations for structures
EN 61952:2008	Insulators for overhead lines - Composite line post insulators for A.C. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
IEC 60383-2:1993	Insulators for overhead lines with a nominal voltage above 1000 V - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
IEC TR 60575:1977	Thermal-mechanical performance test and mechanical performance test on string insulator units
IEC TS 60815-3:2008	Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 3: Polymer insulators for a.c. systems
EN 60383-2:1995	Insulators for overhead lines with a nominal voltage above 1 kV - Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
EN 60038 : 2011	CENELEC STANDARD VOLTAGES (IEC 60038:2009, MODIFIED)
EN 1993-1-11:2006/AC:2009	EUROCODE 3 - DESIGN OF STEEL STRUCTURES - PART 1-11: DESIGN OF STRUCTURES WITH TENSION COMPONENTS
IEC 61897:1998	Overhead lines - Requirements and tests for Stockbridge type aeolian vibration dampers
EN 1993-1-1:2005/A1:2014	EUROCODE 3: DESIGN OF STEEL STRUCTURES - PART 1-1: GENERAL RULES AND RULES FOR BUILDINGS
EN 55016-1-1:2010/A2:2014	SPECIFICATION FOR RADIO DISTURBANCE AND IMMUNITY MEASURING APPARATUS AND METHODS - PART 1-1: RADIO DISTURBANCE AND IMMUNITY MEASURING APPARATUS - MEASURING APPARATUS (CISPR 16-1-1:2010/A2:2014)
EN 61284:1997	Overhead lines - Requirements and tests for fittings
EN 61466-2:1998/A1:2002	COMPOSITE STRING INSULATOR UNITS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE GREATER THAN 1 KV - PART 2: DIMENSIONAL AND ELECTRICAL CHARACTERISTICS
EN 61467:2008	Insulators for overhead lines - Insulator strings and sets for lines with a nominal voltage greater than 1 000 V - AC power arc tests

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