EN 50341-2-15:2019

Overhead electrical lines exceeding AC 1 kV - Part 2-15: National Normative Aspects (NNAs) for the Netherlands (based on EN 50341-1:2012)

2019-09-17: No XML available because of the template of the NNA
2021: CLC legacy converted by DCLab NISOSTS

Nadzemni električni vodi za izmenične napetosti nad 1 kV - 2-15. del: Nacionalna normativna določila (NNA) za Nizozemsko (na podlagi EN 50341-1:2012)

Standard EN 50341-2-15 se uporablja samo za nove visokonapetostne nadzemne vode in ne za obstoječe vode na Nizozemskem. To nacionalno normativno določilo (NNA) določa zahteve za uporabo plastičnih kablov, s kovino ali brez (ADSS), za telekomunikacijo in prevodniške/ozemljitvene sisteme (npr. ovojni kabli). To nacionalno normativno določilo se uporablja za pritrditev konstrukcijskih elementov za telekomunikacijo (npr. krožnikov), če so nameščeni na nosilcih električnih vodov (stolpih), zlasti glede sile vetra in obremenitve ledu na takšnih fiksnih elementih. Uporablja se za nadzemne električne vode za izmenične napetosti od 1 kV do 45 kV. 1. del tega standarda se uporablja brez posebnih nacionalnih pogojev (SNC) oziroma nacionalnih dopolnil (NCPT).

General Information

• Status: Published
• Publication Date: 23-May-2019
• Withdrawal Date: 21-May-2022
• 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: 24-May-2019
• Completion Date: 24-May-2019
• Ref Project: SIST EN 50341-2-15:2019 - Overhead electrical lines exceeding AC 1 kV - Part 2-15: National Normative Aspects (NNAs) for the Netherlands (based on EN 50341-1:2012)

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2019
Nadzemni električni vodi za izmenične napetosti nad 1 kV - 2-15. del: Nacionalna
normativna določila (NNA) za Nizozemsko (na podlagi EN 50341-1:2012)
Overhead electrical lines exceeding AC 1 kV - Part 2-15: National Normative Aspects
(NNAs) for the Netherlands (based on EN 50341-1:2012)
Ta slovenski standard je istoveten z: EN 50341-2-15:2019
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 50341-2-15

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 29.240.20
English Version
Overhead electrical lines exceeding AC 1 kV - Part 2-15:
National Normative Aspects (NNAs) for the Netherlands (based
on EN 50341-1:2012)
This European Standard was approved by CENELEC on 2019-05-22.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50341-2-15:2019 E
Contents
page
European foreword . 5

1 Scope . 7

2 Normative references, definitions and symbols
2.1 Normative references . 8
2.2 Definitions . 10
2.3 Symbols . 10

3 Basis of design
3.2 Requirements of overhead lines. . 12
3.2.2 Reliability requirements . 12
3.2.4 Safety requirements . 12
3.2.6 Additional considerations . 12
3.3 Limit states . 13
3.3.3 Serviceability limit states. . 13

4 Actions on lines
4.1 Introduction. . 14
4.3 Wind loads. . 14
4.3.2 Mean wind velocity. . 14
4.3.4 Turbulence intensity and peak wind pressure. 14
4.3.5 Wind forces on any overhead line component. . 15
4.4 Wind forces on overhead line components. . 19
4.4.1 Wind forces on conductors. . 19
4.4.1.1 General. . 19
4.4.1.2 Structural factor. . 19
4.4.1.3 Drag factor. . 20
4.4.3 Wind forces on lattice towers. . 20
4.4.3.1 General. . 20
4.4.4 Wind forces on poles. . 21
4.5 Ice loads. . 22
4.6 Combined wind and ice loads . 22
4.6.2 Drag factors and ice densities . 22
4.6.4 Equivalent diameter D of ice covered conductors . 22
4.6.6 Combination of wind velocities and ice loads . 23
4.6.6.1 Extreme ice load I combined with a high probability wind velocity V . 23
T IH
4.6.6.2 Nominal ice load I combined with a low probability wind velocity V . 23
3 IL
4.7 Temperature effects . 23
4.8 Security loads . 23
4.9 Safety loads . 23
4.9.1 Safety loads (construction and maintenance loads) . 23
4.11 Other special forces . 24
4.11.1 Avalanches, creeping snow . 24
4.11.2 Earthquakes . 24
4.11.3 Floating ice or collisions . 24
4.11.4 Loads due to line galloping . 25
4.12 Load cases . . 25
4.12.2 Standard load cases . . 25
4.13 Partial factors for actions . . 26

the Netherlands - 3/63 - EN 50341-2-15:2019

5 Electrical requirements
5.2 Currents . 28
5.2.1 Normal current . 28
5.2.2 Short-circuit current . 28
5.4 Classification of voltages and overvoltages . 28
5.4.5 Representative fast-front overvoltages . 28
5.5 Minimum air clearance distances to avoid flashover . 28
5.5.2 Application of the theoretical method in annex E . 28
5.6 Load cases for calculation of clearances . . 30
5.6.2 Maximum conductor temperature . . 30
5.6.3 Wind loads for determination of electrical clearances . . 30
5.6.3.2 Nominal wind loads for determination of internal and external
electrical clearances . 30
5.6.3.3 Extreme wind loads for determination of internal clearances . 31
5.6.4 Ice load for determination of electrical clearances . 31
5.6.5 Combined wind and ice loads . 31
5.8 Internal clearances within the span and the top of the support . 31
5.9 External clearances . 32
5.9.1 General . 32
5.9.2 External clearances to ground in areas remote from buildings,
roads, etc. . 33
5.9.3 External clearances to residential and other buildings . 33
5.9.4 External clearances to crossing traffic routes . 35
5.9.5 External clearances to adjacent traffic routes . 36
5.9.6 External clearances to other powerlines or overhead
telecommunication lines . 36
5.10 Corona effect . 37
5.10.1 Radio noise . 37
5.10.1.3 Noise limits . 37
5.10.2 Audible noise . 37
5.10.2.3 Noise limit. 37
5.11 Electric and magnetic fields . 37
5.11.2 Electric and magnetic field induction . 37

6 Earthing systems
6.1 Introduction . 38
6.1.2 Requirements for dimensioning of earthing systems . 38
6.1.3 Earthing measures against lightning effects . 38
6.4 Dimensioning with regard to human safety . 38
6.4.1 Permissible values for touch values. 38
6.4.2 Touch voltage limits at different locations . 39
6.4.3 Basic design of earthing systems with regard to permissible touch voltage 40
6.4.4 Measures in systems with isolated neutral or resonant earthing . 40

7 Supports
7.1 Initial design considerations . 41
7.1.2 Structural design resistance of a pole . 41
7.1.3 Buckling resistance . 41
7.2 Materials . 41
7.2.3 Requirements for steel grades subject to galvanising . 41
7.2.7 Guy materials . 41
7.2.8 Other materials . 41
7.3 Lattice steel towers . 41
7.3.5 Structural analysis . 41

7.3.6 Ultimate limit states . 44
7.3.7 Serviceability limit states . 44
7.3.8 Resistance of connections . 44
7.3.9 Design assisted by testing . 45
7.4 Steel poles . 46
7.4.6 Ultimate limit states (EN 1993-1-1:2005 – Chapter 6) . 46
7.4.6.2 Resistance of cross section areas . 46
7.4.7 Serviceability limit states (EN 1993-1-1:2005 – Chapter 7) . 46
7.4.10 Fatigue . 46
7.6 Concrete poles . 47
7.6.4 Ultimate limit states . 47
7.6.5 Serviceability limit states . 47
7.9 Corrosion protection and finishes . 47
7.10 Maintenance facilities . 47

8 Foundations
8.2 Basis of geotechnical design (EN 1997-1:2004 – Section 2) . 48
8.2.2 Geotechnical design by calculation. 48

9 Conductors and earthwires
9.1 Introduction . 49
9.6 General requirements . 49
9.6.2 Partial factor for conductors . 49

10 Insulators
10.2 Standard electrical requirements . 50
10.4 Pollution performance requirements . 50
10.5 Power arc requirements . 50
10.7 Mechanical requirements . 50

11 Hardware
11.5 Short circuit current and power arc requirements . 51
11.6 Mechanical requirements . 51
11.8 Material selection and specification .
...