EN 50341-2-18:2016

Overhead electrical lines exceeding AC 1 kV - Part 2-18: National Normative Aspects (NNA) for Sweden (based on EN 50341-1:2012)

SE.1 Application to existing overhead lines This Part 2-18 is applicable for new overhead lines only and not for existing lines. SE.2 Maintenance, rebuilding or extension of an overhead line Measures related to maintenance of the electrical installation shall fulfill the legislation in force when it was erected. In the case of a rebuilding or extension of an electrical installation (overhead line), the regulations in force shall be applied for the rebuilding or extension. (ELSÄK-FS 2008:1) SE.3 Replacement This Part 2-18 replaces the Swedish Standards SS EN 50341 3 18, edition 1 and SS EN 50423 3 18, edition 3. SE.4 Optical ground wire (OPGW) and optical phase conductor (OPCON) This Part 2-18 is applicable for installation of OPGW and OPCON, also known as OPPC, in overhead lines in Sweden. SE.5 All dielectric self supporting optical cable (ADSS) and optical attached cable (OPAC) This Part 2-18 is applicable for installation of ADSS and OPAC in overhead lines in Sweden. NOTE The allowable electrical field for the ADSS cable should be taken into consideration when the conductor configuration is determined.

Lignes électriques aériennes dépassant 1 kV en courant alternatif - Partie 2-18 : Aspects Normatifs Nationaux (NNA) pour la Suède (sur la base de l'EN 50341-1:2012)

Nadzemni električni vodi za izmenične napetosti nad 1 kV - 2-18. del: Nacionalna normativna določila (NNA) za Švedsko (na podlagi EN 50341-1:2012)

SE.1 Uporaba za obstoječe nadzemne vode
Ta del 2-18 se uporablja samo za nove nadzemne vode in ne za obstoječe vode.
(A-dev)
SE.2 Vzdrževanje, obnavljanje ali razširitev nadzemnega voda
Ukrepi, ki se nanašajo na vzdrževanje električnih inštalacij, morajo v času postavitve inštalacij izpolnjevati določila veljavne zakonodaje. V primeru obnove ali razširitve električne inštalacije (nadzemnega voda) se za obnovo ali razširitev uporabijo veljavni predpisi. (ELSÄK-FS 2008:1) (ncpt)
SE.3 Nadomestitev
Ta del 2-18 nadomešča švedska standarda SS-EN 50341-3-18, izdaja 1, in SS-EN 50423-3-18,
izdaja 3. (ncpt)
SE.4 Optične ozemljitvene žice (OPGW) in optični linijski vodniki (OPCON)
Ta del 2-18 se uporablja za namestitev optičnih ozemljitvenih žic in optičnih linijskih vodnikov, imenovanih tudi OPPC, pri nadzemnih
vodih na Švedskem. (ncpt)
SE.5 Vsi dielektrični samonosilni optični kabli (ADSS) in optični nameščeni kabli (OPAC)
Ta del 2-18 se uporablja za namestitev dielektričnih samonosilnih optičnih kablov in optičnih nameščenih kablov.
OPOMBA: Pri določanju konfiguracije prevodnika je treba upoštevati dovoljeno električno polje za dielektrični samonosilni optični kabel.

General Information

• Status: Published
• Publication Date: 01-Dec-2016
• Withdrawal Date: 31-Oct-2019
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: CLC/TC 11 - Overhead electrical lines exceeding 1 kV a.c. (1,5 kV d.c.)
• Drafting Committee: CLC/TC 11 - Overhead electrical lines exceeding 1 kV a.c. (1,5 kV d.c.)
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 02-Dec-2016
• Completion Date: 02-Dec-2016
• Ref Project: SIST EN 50341-2-18:2018 - Overhead electrical lines exceeding AC 1 kV - Part 2-18: National Normative Aspects (NNA) for Sweden (based on EN 50341-1:2012)

Relations

• Replaced By: EN 50341-2-18:2023 - Overhead electrical lines exceeding AC 1 kV - Part 2-18: National Normative Aspects (NNA) for Sweden (based on EN 50341-1:2012)
• Effective Date: 20-Feb-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2018
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Overhead electrical lines exceeding AC 1 kV - Part 2-18: National Normative Aspects
(NNA) for Sweden (based on EN 50341-1:2012)
Lignes électriques aériennes dépassant 1 kV en courant alternatif - Partie 2-18 : Aspects
Normatifs Nationaux (NNA) pour la Suède (sur la base de l'EN 50341-1:2012)
Ta slovenski standard je istoveten z: EN 50341-2-18:2016
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50341-2-18

NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2016
ICS 29.240.20
English Version
Overhead electrical lines exceeding AC 1 kV - Part 2-18:
National Normative Aspects (NNA) for Sweden (based on EN
50341-1:2012)
Lignes électriques aériennes dépassant 1 kV en courant
alternatif - Partie 2-18 : Aspects Normatifs Nationaux (NNA)
pour la Suède (sur la base de l'EN 50341-1:2012)
This European Standard was approved by CENELEC on 2016-11-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50341-2-18:2016 E
Sweden 2/85 EN 50341-2-18:2016
Foreword . 7
1 Scope . 8
2 Normative references, definitions and symbols . 8
2.1 Normative references . 8
2.2 Definitions . 11
2.3 Symbols . 11
3 Basis of design . 12
3.2 Requirements of overhead lines . 12
3.2.2 Reliability requirements . 12
3.6 Design values . 13
3.6.2 Design values of an action . 13
3.7 Partial factor method and design formula . 13
3.7.3.2 Design situations related to permanent and variable actions . 13
3.7.3.3 Design situations related to permanent, variable and accidental actions 14
4 Actions on lines . 14
4.1 Introduction . 14
4.3 Wind loads . 14
4.3.4 Turbulence intensity and peak wind pressure . 14
4.4 Wind forces on overhead line components . 14
4.4.1 Wind forces on conductors . 14
4.4.1.1 General . 14
4.4.1.2 Structural factor . 15
4.4.1.3 Drag factor . 15
4.4.2 Wind forces on insulator sets . 15
4.4.3 Wind forces on lattice towers . 15
4.4.3.1 General . 15
4.4.3.2 Method 1 . 15
4.4.3.3 Method 2 . 16
4.4.4 Wind forces on poles . 16
4.5 Ice load . 16
4.5.2 Ice forces on conductors . 16
4.6 Combined wind and ice loads . 18
4.6.2 Drag factors and ice densities . 18
4.6.3 Mean wind pressure and peak wind pressure . 18
4.6.4 Equivalent diameter D of ice covered conductor . 18
4.7 Temperature effects . 18
4.8 Security loads . 19

Sweden - 3/85 - EN 50341-2-18:2016
4.9 Safety loads . 19
4.9.1 Construction and maintenance loads . 19
4.12 Load cases . 19
4.12.2 Standard load cases . 19
4.13 Partial factors for actions . 24
5 Electrical requirements . 26
5.3 Insulation co-ordination . 26
5.4 Classification of voltages and overvoltages . 27
5.5 Minimum air clearance distances to avoid flashover . 28
5.6 Load cases for calculation of clearances . 30
5.8 Minimum internal clearances within the span and at the top of support. 34
5.9 External clearances . 39
5.9.1 General . 39
5.9.2 External clearances to ground in areas remote from buildings, roads, etc.
................................................................................................................. 40
5.9.3 External clearances to residential and other buildings . 43
5.9.4 External clearances to crossing traffic routes . 44
5.9.6 External clearances to other power lines or overhead telecommunication
lines. 46
5.9.7 External clearances to recreational areas (playgrounds, sports areas,
etc.) . 50
6 Earthing systems . 51
6.1 Introduction . 51
6.1.3 Earthing measures against lightning effects . 51
6.1.4 Transferred potentials . 51
6.2 Ratings with regard to corrosion and mechanical strength . 51
6.2.1 Earth electrodes . 51
6.2.2 Earthing and bonding conductors . 52
6.4 Dimensioning with regard to human safety . 52
6.4.3 Basic design of earthing systems with regard to permissible touch voltage
................................................................................................................. 52
6.4.4 Measures in systems with isolated neutral or resonant earthing . 54
7 Supports . 54
7.1 Initial design considerations . 54
7.2 Materials . 54
7.2.1 Steel materials, bolts, nuts and washers, welding consumables . 54
7.2.6 Wood . 54
7.3 Lattice steel towers . 55
7.3.1 General . 55

7.3.3 Materials . 55
7.3.6 Ultimate limit states . 55
7.3.6.1 General . 55
7.3.6.3 Tension, bending and compression resistance of members . 55
7.3.6.4 Buckling resistance of members in compression . 55
7.3.8 Resistance of connections . 56
7.4 Steel poles . 56
7.4.1 General . 56
7.4.6.1 Ultimate limit states, General . 56
7.4.8.1 Connections, Basis . 56
7.4.8.2 Bolts (other than holding-down bolts) . 56
7.5 Wood poles . 56
7.5.1 General . 56
7.5.3 Materials . 57
7.5.5 Ultimate limit states . 57
7.5.5.2 Calculation of internal forces and moments . 57
7.5.5.3 Resistance of wood elements . 57
7.5.5.4 Decay conditions . 58
7.5.7 Resistance of connections . 58
7.5.8 Design assisted by testing . 58
7.6 Concrete poles . 58
7.6.1 General . 58
7.6.2 Basis of design . 59
7.6.3 Materials . 59
7.6.4 Ultimate limit states . 59
7.6.5 Serviceability limit states . 59
7.6.6 Design assisted by testing . 60
7.7 Guyed structures. 60
7.7.3 Materials .
...