EN 50341-2-22:2022

Overhead electrical lines exceeding AC 1 kV - Part 2-22: National Normative Aspects (NNA) for Poland (based on EN 50341-1:2012)

1.1 General (ncpt) PL.1 Scope of application This NNA applies to designing and constructing of new overhead lines with nominal system voltages exceeding 1 kV AC. "New overhead line" means a totally new line between two points, A and B, built up with new components. The standard PN-EN 50341-1 (Part 1) with this NNA does not apply to modernisation, reconstruction and renovation of the existing lines, unless otherwise specified in the Project Specification. 1.2 Field of application (ncpt) PL.1 All Dielectric Self Supporting (ADSS) cables This NNA applies to All Dielectric Self Supporting (ADSS) cables only within the scope of their impact on the supports and minimum clearances which shall be taken as for insulated cable systems. (ncpt) PL.2 Telecommunication equipment This NNA relates to the telecommunication equipment mounted on the new overhead line supports.

Nadzemni električni vodi za izmenične napetosti nad 1 kV - 2-22. del: Nacionalna normativna določila (NNA) za Poljsko (na podlagi EN 50341-1:2012)

1.1 Splošno
(ncpt)   PL.1 Področje uporabe
To nacionalno normativno določilo se uporablja za načrtovanje in gradnjo novih nadzemnih vodov z nazivno izmenično napetostjo sistema, ki presega 1 kV.
»Nov nadzemni vod« pomeni popolnoma nov vod med točkama A in B, izdelan z novimi komponentami.
Standard PN-EN 50341-1 (1. del) s tem nacionalnim normativnim določilom se ne uporablja za posodobitev, rekonstrukcijo in obnovo obstoječih vodov, razen če je v specifikaciji projekta določeno drugače.
1.2 Področje uporabe
(ncpt)   PL.1 Popolnoma dielektrični samonosni kabli (ADSS)
To nacionalno normativno določilo se uporablja za vse kable ADSS samo v okviru njihovega vpliva na nosilce in minimalne razdalje, ki se upoštevajo za izolirane kabelske sisteme.
(ncpt)   PL.2 Telekomunikacijska oprema
To nacionalno normativno določilo se navezuje na telekomunikacijsko opremo, nameščeno na nove nosilce nadzemnih vodov.

General Information

• Status: Published
• Publication Date: 24-Mar-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: 25-Mar-2022
• Due Date: 23-May-2024
• Completion Date: 25-Mar-2022
• Ref Project: SIST EN 50341-2-22:2022 - Overhead electrical lines exceeding AC 1 kV - Part 2-22: National Normative Aspects (NNA) for Poland (based on EN 50341-1:2012)

Relations

• Replaces: EN 50341-2-22:2016 - Overhead electrical lines exceeding AC 1 kV - Part 2-22: National Normative Aspects (NNA) for Poland (based on EN 50341-1:2012)
• Effective Date: 29-Mar-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2022
Nadomešča:
SIST EN 50341-2-22:2016
Nadzemni električni vodi za izmenične napetosti nad 1 kV - 2-22. del: Nacionalna
normativna določila (NNA) za Poljsko (na podlagi EN 50341-1:2012)
Overhead electrical lines exceeding AC 1 kV - Part 2-22: National Normative Aspects
(NNA) for Poland (based on EN 50341-1:2012)
Ta slovenski standard je istoveten z: EN 50341-2-22:2022
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 50341-2-22

NORME EUROPÉENNE
EUROPÄISCHE NORM March 2022
ICS 29.240.20 Supersedes EN 50341-2-22:2016 and all of its
amendments and corrigenda (if any)
English Version
Overhead electrical lines exceeding AC 1 kV - Part 2-22:
National Normative Aspects (NNA) for Poland (based on EN
50341-1:2012)
To be completed To be completed
This European Standard was approved by CENELEC on 2022-01-12. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50341-2-22:2022 E
Contents Page
European foreword . 6
1 Scope . 7
1.1 General . 7
1.2 Field of application . 7
2 Normative references, definitions and symbols . 7
2.1 Normative references. 7
2.2 Definitions . 9
3 Basis of design . 12
3.2 Requirements of overhead lines . 12
3.2.2 Reliability requirements . 12
3.2.3 Security requirements . 13
3.2.8 Durability. 13
3.6 Design values . 13
3.6.2 Design value of an action . 13
4 Actions on lines . 13
4.3 Wind loads . 13
4.3.1 Field of application and basic wind velocity . 13
4.3.2 Mean wind velocity . 15
4.3.3 Mean wind pressure . 15
4.3.5 Wind forces on any overhead line component . 15
4.4 Wind forces on overhead line components . 16
4.4.1 Wind forces on conductors . 16
4.4.1.1 General . 16
4.4.1.2 Structural factor . 16
4.4.1.3 Drag factor . 16
4.4.2 Wind forces on insulator sets . 16
4.4.3 Wind forces on lattice towers . 16
4.4.3.1 General . 16
4.4.3.2 Method 1 . 17
4.4.4 Wind forces on poles . 17
4.5 Ice loads . 17
4.5.1 General . 17
4.5.2 Ice forces on conductors . 19
4.6 Combined wind and ice loads . 19
4.6.2 Drag factors and ice densities . 19
4.6.3 Mean wind pressure and peak wind pressure . 19
4.6.6 Combination of wind velocities and ice loads . 19
4.6.6.1 Extreme ice load I combined with a high probability wind velocity V
T IH
.............................................................................................................. 19
4.6.6.2 Nominal ice load I combined with low probability wind velocity V . 20
3 IL
4.7 Temperature effects . 20
4.8 Security loads . 20
4.8.1 General . 20
4.9 Safety loads . 20
4.9.2 Loads related to the weight of the linesman . 20
4.10 Forces due to short-circuit currents . 20
4.12 Load cases . 20

Poland                           - 3/58 -                 EN 50341-2-22:2022
4.12.1 General . 20
4.12.2 Standard load cases . 21
4.13 Partial factors for actions . 23
5 Electrical requirements . 23
5.3 Insulation co – ordination . 23
5.5 Minimum air clearance distances to avoid flashover . 24
5.6 Load cases for calculation of clearances . 24
5.6.2 Maximum conductor temperature . 24
5.6.3 Wind loads for determination of electric clearances . 25
5.6.3.2 Nominal wind loads for determination of internal and external
clearances . 25
5.6.3.3 Extreme wind loads for determination of internal clearances . 25
5.6.4 Ice loads for determination of electric clearances . 25
5.6.5 Combined wind and ice loads . 25
5.8 Internal clearances within the span and at the top of support . 25
5.9 External clearances . 32
5.9.1 General . 32
5.9.2 External clearances to ground in areas remote from buildings,
roads, etc. . 34
5.9.3 External clearances to residential and other buildings . 36
5.9.4 External clearances to line crossing traffic routes . 38
5.9.5 External clearances to adjacent traffic routes . 40
5.9.6 External clearances to other power lines or overhead
telecommunication lines . 41
5.9.7 External clearances to recreational areas (playgrounds, sport
areas, etc.) . 43
6 Earthing systems . 43
6.1 Introduction . 43
6.1.1 Purpose . 43
6.1.3 Earthing measures against lightning effects . 43
6.2 Ratings with regard to corrosion and mechanical strength. 44
6.2.2 Earthing and bonding conductors . 44
6.4 Dimensioning with regard to human safety . 44
6.4.3 Basic design of earthing systems with regard to permissible touch
voltage . 44
7 Supports . 44
7.3 Lattice steel towers . 44
7.3.1 General . 44
7.3.5 Structural analysis . 44
7.3.6 Ultimate limit states . 45
7.3.6.1 General . 45
7.3.6.3 Tension, bending and compression resistance of members . 45
7.3.6.4 Buckling resistance of members in compression . 45
7.3.7 Serviceability limit states . 45
7.3.8 Resistance of connections . 46
7.3.9 Design assisted by testing . 46
7.4 Steel poles. 46
7.4.1 General . 46
7.4.5 Structural analysis (EN 1993-1-1:2005 – Chapter 5) . 46

7.4.6 Ultimate limit states (EN 1993-1-1:2005 – Chapter 6) . 46
7.4.6.1 General . 46
7.4.7 Serviceability limit states (EN 1993-1-1:2005 – Chapter 7) . 46
7.4.8 Resistance of connections . 47
7.4.8.2 Bolts (other than holding-down bolts) . 47
7.4.9 Design assisted by testing . 47
7.5 Wood poles . 47
7.5.1 General . 47
7.5.5 Ultimate limit states .
...