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)

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: 03-May-2022
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: NVV - Overhead lines and overhead electrical conductors
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Apr-2022
• Due Date: 10-Jun-2022
• Completion Date: 04-May-2022
• Ref Project: 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

• Revised: SIST 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: 25-Nov-2021
• Replaces: SIST 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
SIST EN 50341-2-22:2022
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
SIST EN 50341-2-22:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50341-2-22:2022

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SIST EN 50341-2-22:2022


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

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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

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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

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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 . 47
7.5.5.3 Resistance of wood elements . 47
7.6 Concrete poles . 47
7.6.1 General . 47
7.6.3 Materials . 47
7.6.4 Ultimate limit states . 48
7.6.5 Serviceability limit states . 48
7.10 Maintenance facilities . 48
7.10.3 Safety requirements . 48
7.11 Loading tests . 48
7.12 Assembly and erection . 48
8 Foundations . 49
8.1 Introduction . 49
8.2 Basis of geotechnical design (EN 1997-1:2004 – Section 2) . 49
8.2.2 Geotechnical design by calculation . 49
8.2.4 Load tests and tests on experimental models. 50
8.3 Soil investigation and geotechnical data (EN 1997-1:2004 – Section 3) . 50
8.4 Supervision of construction, monitoring and maintenance (EN 1997-1:2004 –
Section 4) . 51
9 Conductors and earth-wires . 52
9.2 Aluminium based conductors . 52
9.2.3 Conductor service temperatures and grease characteristics . 52
9.3 Steel based conductors . 52
9.3.3 Conductor service temperatures and grease characteristics . 52
9.5 Conductors and ground wires containing optical fibre telecommunication
circuits . 53
9.5.3 Conductor service temperatures . 53
9.6 General requirements . 53
9.6.2 Partial factor for conductors . 53
10 Insulators . 54
10.4 Pollution performance requirements . 54
10.5 Power arc requirements. 54
10.7 Mechanical requirements . 55
11 Hardware . 55
11.6 Mechanical requirements . 55
12 Quality assurance, checks and taking-over . 55
Annex J (normative) Angles in lattice steel towers . 56
J.2 General . 56
J.3 Tension resistance of angles connected through one leg (see 7.3.6.2) . 56

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Annex K (normative) Steel poles . 57
K.2 Classification of cross sections (EN 1993-1-1:2005 – 5.5) . 57
K.4 Resistance of circular cross sections . 57
Annex M (informative) Geotechnical and structural design of foundations . 58
M.2 Sample analytical models for uplift resistance calculation . 58
M.2.2 Calculation of R . 58
W

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European Foreword
1. The Polish Committee for Standardization (NC) is identified by the following address:
Polski Komitet Normalizacyjny
ul. Świętokrzyska 14
00-050 Warszawa
Polska
phone: [phone]
e-mail: [e-mail]

Name of the relevant technical body: Komitet Techniczny nr 80 ds. “Ogólnych w Sieciach
Elektroenergetycznych” (Technical Committee No 80 “for General Issues in Power Networks”).
2. The Polish NC has prepared this Part 2-22 (EN 50341-2-22) listing the Polish National
Normative Aspects (NNA), under its sole responsibility, and duly passed it through the
CENELEC and CLC/TC11 procedures.
NOTE:
The Polish NC also takes sole responsibility for the technically correct co-ordination of this NNA with EN
50341-1. It has performed the necessary checks in the frame of quality assurance / control. However, it is
noted that this quality control has been made in the framework of the general responsibility of a standards
committee under the national laws / regulations.
3. This NNA is normative in Poland and informative for other countries.
4. This NNA has to be read in conjunction with Part 1 (EN 50341-1). All clause numbers used in
this NNA correspond to those of Part 1. Specific subclauses, which are prefixed “PL”, are to be
read as amendments to the relevant text in Part 1. Any necessary clarification regarding the
application of this NNA in conjunction with Part 1 shall be referred to the Polish NC who will, in
co-operation with CLC/TC11, clarify the requirements.
Where no reference is made in this NNA to a specific sub-clause, then Part 1 shall apply.
5. In case of “boxed values” defined in Part 1, amended values (if any), which are defined in this
NNA, shall be taken into account in Poland.
However, any boxed value whether in Part 1 or in this NNA, shall not be amended in the direction
of greater risk in the Project Specification.
NOTE:
All national standards referred to in this Part 2-22 will be replaced by the relevant European Standards as
soon as they become available and declared by the Polish NC to be applicable and thus reported to the
secretary of CLC/TC 11.

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1 Scope
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.
2 Normative references, definitions and symbols
2.1 Normative references
(ncpt) PL.1 General
The following documents which are quoted partly or as a whole in this document are necessary
for the application of this document. In case of non-dated references the last edition of the
referred document (including all modifications) is applicable.
(A-Dev) PL.2 Normative references
Reference Title
PN-EN 1992-1-1:2008 Eurocode 2: Design of concrete structures – Part 1-1: General rules and
rules for buildings
Eurokod 2: Projektowanie konstrukcji z betonu -- Część 1-1: Reguły
ogólne i reguły dla budynków
PN-EN 1993-1-1:2006 Eurocode 3: Design of steel structures – Part 1-1: General rules and
rules for buildings
Eurokod 3: Projektowanie konstrukcji stalowych -- Część 1-1: Reguły
ogólne i reguły dla budynków
PN-EN 1993-1-6:2009 Eurocode 3: Design of steel structures – Part 1-6: Strength and stability
of shell structures
Eurokod 3: Projektowanie konstrukcji stalowych -- Część 1-6:
Wytrzymałość i stateczność konstrukcji powłokowych
PN-EN 1993-1-8:2006 Eurocode 3: Design of steel structures – Part 1-8: Design of joints
Eurokod 3: Projektowanie konstrukcji stalowych -- Część 1-8:
Projektowanie węzłów
PN-EN 1993-3-1:2008 Eurocode 3: Design of steel structures – Part 3-1: Towers, masts and
chimneys – Towers and masts
Eurokod 3: Projektowanie konstrukcji stalowych -- Część 3-1: Wieże,
maszty i kominy -- Wieże i maszty
PN-EN 1997-1:2008 Eurocode 7: Geotechnical design – Part 1: General rules
Eurokod 7: Projektowanie geotechniczne -- Część 1: Zasady ogólne

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PN-EN 1997- National Normative Aspects for Poland based on Eurocode 7:
Geotechnical design – Part 1: General rules
1:2008/NA:2011
Załącznik krajowy do PN-EN 1997-1:2008 Eurokod 7: Projektowanie
geotechniczne -- Część 1: Zasady ogólne
PN-EN 1090-1 Execution of steel structures and aluminium structures – Part 1:
Requirements for conformity assessment of structural components
Wykonanie konstrukcji stalowych i aluminiowych -- Część1:
Zasady oceny zgodności elementów konstrukcyjnych
PN-EN 1090-2:2018-09 Execution of steel structures and aluminium structures – Part 2:
Technical requirements for the execution of steel structures
Wykonanie konstrukcji stalowych i aluminiowych – Część 2:
Wymagania techniczne dotyczące konstrukcji stalowych
PN-EN 12843 Precast concrete products - Masts and poles
Prefabrykaty z betonu -- Maszty i słupy
PN-EN 14229 Structural timber - Wooden poles for overhead lines
Drewno konstrukcyjne -- Słupy drewniane do linii napowietrznych
PN-EN ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles –
Specifications and test methods
Powłoki cynkowe nanoszone na stal metodą zanurzeniową --
Wymagania i metody badań
PN-EN ISO 10684 Fasteners – Hot dip galvanized coatings
Części złączne -- Powłoki cynkowe nanoszone metodą zanurzeniową
PN-B-02482:1983 Building foundations – Bearing capacity of piles and pile foundations
Fundamenty budowlane -- Nośność pali i fundamentów palowych
PN-B-02483:1978 Large diameter bored piles – Specifications and tests
Pale wielkośrednicowe wiercone -- Wymagania i badania
PN-B-03322:1980 Electric overhead lines – Foundations of supporting structures – Static
calculations and design
Elektroenergetyczne linie napowietrzne -- Fundamenty konstrukcji
wsporczych − Obliczenia statyczne i projektowanie
PN-EN 61773 Overhead lines – Testing of foundations for structures
Elektroenergetyczne linie napowietrzne -- Badanie fundamentów
konstrukcji wsporczych
PN-E-06303:1998 Exposure of outdoor insulation to pollution and selection of insulators
under polluted conditions
Narażenie zabrudzeniowe izolacji napowietrznej i dobór izolatorów do
warunków zabrudzeniowych
PN-EN 60071-1 Insulation co-ordination – Part 1: Definitions, principles and rules
Koordynacja izolacji -- Część 1: Definicje, zasady i reguły
PN-EN 50182:2002 Conductors for overhead lines – Round wire concentric lay stranded
conductors
Przewody do linii napowietrznych -- Przewody z drutów okrągłych
skręconych współosiowo

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2.2 Definitions
List of definitions given in Part 1, in alphabetical order in Polish language, is given below.
Item
No. Definition number
in Part 1
1 safety 2.2. 79
2 earth fault 2.2. 27
3 effect of action 2.2. 37
4 element 2.2. 39
5 purpose 2.2. 68
6 magnetic flux density 2.2. 57
7 exclusion limit probability of a variable 2.2. 41
8 impedance to earth of an earthing system 2.2. 51
9 composite insulator 2.2. 15
10 combination of actions 2.2. 11
11 structure 2.2. 87
12 support (tower) 2.2. 88
13 temporary line 2.2. 102
14 voltage difference 2.2. 109
15 highest system voltage 2.2. 49
16 touch voltage 2.2. 103
17 step voltage 2.2. 85
18 earth potential rise 2.2. 29
19 nominal system voltage 2.2. 59
20 unavailability 2.2. 106
21 reliability (electrical) 2.2. 74
22 reliability (structural) 2.2. 75
23 resistance (structural) 2.2. 76
24 characteristic resistance 2.2. 6
25 design resistance 2.2. 19
26 design working life 2.2. 23
27 frequently occupied area 2.2. 47
28 action 2.2. 1
29 dynamic action 2.2. 24
30 quasi – static action 2.2. 69
31 permanent action 2.2. 64
32 static action 2.2. 84
33 free action 2.2. 46
34 fixed action 2.2. 44
35 accidental action 2.2. 2

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Item
No. Definition number
in Part 1
36 variable action 2.2. 108
37 clearance 2.2. 9
38 internal clearance 2.2. 52
39 external clearances 2.2. 42
40 reference period 2.2. 73
41 return period 2.2. 78
42 security 2.2. 80
43 component 2.2. 14
44 electric field 2.2. 38
45 magnetic field 2.2. 56
46 equipotential bonding 2.2. 40
47 earth surface potential 2.2. 31
48 transferred potential 2.2. 104
49 earth fault current 2.2. 28
50 current to eart
...