EN 50341-2-6-2017 en Overhead electrical lines exceeding AC 1 kV - Part 2-6 National Normative Aspects (NNA) for SPAIN.pdf

1、BS EN 50341-2-6:2017Overhead electrical lines exceeding AC 1 kVPart 2-6: National Normative Aspects (NNA) for SPAIN (based on EN 50341-1:2012)BSI Standards PublicationBS EN 50341-2-6:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50341-2-6:2017.This standa

2、rd, together with the following list of National Normative Aspect standards, supersedes BS EN 50423-3:2005 and BS EN 50341-3:2001:Country CodeOrigin RefAT Austrian National Committee BS EN 50341-2-1 BE Belgian National Committee BS EN 50341-2-2 CH Swiss National Committee BS EN 50341-2-3 DE German N

3、ational Committee BS EN 50341-2-4:2016DK Danish National Committee BS EN 50341-2-5:2017ES Spanish National Committee BS EN 50341-2-6:2017FI Finnish National Committee BS EN 50341-2-7:2015FR French National Committee BS EN 50341-2-8 GB British National Committee BS EN 50341-2-9:2015GR Greek National

4、Committee BS EN 50341-2-10 IE Irish National Committee BS EN 50341-2-11 IS Iceland National Committee BS EN 50341-2-12 IT Italian National Committee BS EN 50341-2-13:2017LU Luxemburg National Committee No NNA available NL Nederlands National Committee BS EN 50341-2-15 NO Norwegian National Committee

5、 BS EN 50341-2-16:2016PT Portuguese National Committee BS EN 50341-2-17 SE Swedish National Committee BS EN 50341-2-18 CZ Czech National Committee BS EN 50341-2-19:2015EE Estonian National Committee BS EN 50341-2-20:2015 PL Polish National Committee BS EN 50341-2-22:2016SK Slovak National Committee

6、BS EN 50341-2-23:2016 BS EN 50423-3:2005 and BS EN 50341-3:2001 will be withdrawn upon publication of the rest of the series.The UK participation in its preparation was entrusted to Technical Committee PEL/11, Overhead Lines.A list of organizations represented on this committee can be obtained on re

7、quest to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 97922 4ICS 29.240.20Compliance with a Briti

8、sh Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on “QSJM2017.Amendments/corrigenda issued since publicationDate Text affectedBS EN 50341-2-6:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISC

9、HE NORM EN 50341-2-6 February 2017 ICS 29.240.20 English Version Overhead electrical lines exceeding AC 1 kV - Part 2-g25: National Normative Aspects (NNA) for SPAIN (based on EN 50341-1:2012) Lignes lectriques ariennes dpassant 1 kV en courant alternatif - Partie 2-13: Aspects normatifs nationaux (

10、NNA)pour lESPAGNE (bas sur lEN 50341-1:2012) This European Standard was approved by CENELEC on 2017-02-01. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia

11、, 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 Comit

12、Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50341-2-6:2017 E BS EN

13、50341-2-6:2017EN 50341-2-6:2017 - 2 - Spain Contents Page 1 SCOPE 6 1.1 General 6 1.2 Field of application 6 2 NORMATIVE REFERENCES, DEFINITIONS AND SYMBOLS 6 2.1 Normative references 6 2.3 Symbols . 6 3 BASIS OF DESIGN 7 3.2 Requirements of overhead lines . 7 3.2.2 Reliability requirements . 7 3.2.

14、5 Strength coordination 7 3.6 Design values 7 3.6.2 Design value of an action 7 3.6.3 Design value of a material property 7 3.7 Partial factor method and design formula . 7 3.7.2 Basic design formula . 7 4 ACTIONS ON LINES 8 4.1 Introduction 8 4.2 Permanent loads . 8 4.3 Wind loads . 8 4.3.1 Field o

15、f application and basic wind velocity 8 4.3.5 Wind forces on any overhead line component 8 4.4 Wind forces on overhead line components . 10 4.5 Ice loads 10 4.5.2 Ice forces on conductors . 10 4.7 Temperature effects 10 4.8 Security loads 10 4.8.1 General 10 4.8.2 Torsional loads 11 4.8.3 Longitudin

16、al loads . 11 4.12 Load cases 12 4.12.1 General 12 4.12.2 Standard load cases 12 4.13 Partial factors for actions . 12 5 ELECTRICAL REQUIREMENTS 13 5.2 Currents. 13 5.2.1 Normal current. 13 5.3 Insulation co-ordination . 14 5.4 Classification of voltages and overvoltages 17 BS EN 50341-2-6:2017Spain

17、 - 3 - EN 50341-2-6:2017 Page 5.4.2 Representative power frequency voltages 17 5.5 Minimum air clearance distances to avoid flashovers. 18 5.6 Load cases for calculation of clearances 19 5.6.1 Load conditions . 19 5.8 Internal clearances within the span and at the top of support 19 5.9 External clea

18、rances . 21 5.9.1 General 21 5.9.2 External clearances to ground in areas remote from buildings, roads, etc. 22 5.9.3 External clearances to residential and other buildings . 23 5.9.4 External clearances to crossing traffic routes . 24 5.9.5 External clearances to adjacent traffic routes . 25 5.9.6

19、External clearances to other power lines or overhead telecommunication lines 26 5.9.7 External clearances to recreational areas (playgrounds, sports areas, etc.) 29 6 EARTHING SYSTEMS 29 6.1 Introduction 29 6.1.2 Requirements for dimensioning of earthing systems 29 6.1.3 Earthing measures against li

20、ghtning effects . 30 6.2 Ratings with regards to corrosion and mechanical strength . 30 6.2.2 Earthing and bonding conductors . 30 6.3 Dimensioning with regard to thermal strength 30 6.3.1 General 30 6.3.2 Current rating calculation 31 6.4 Dimensioning with regard to human safety . 31 6.4.1 Permissi

21、ble values for touch voltage 31 6.4.3 Basic design of earthing systems with regard to permissible touch voltage . 31 6.5 Site inspection and documentation of earthing systems . 32 7 SUPPORTS 33 7.2 Materials 33 7.2.1 Steel materials, bolts, nuts and washers, welding consumables 33 7.2.5 Concrete and

22、 reinforced steel . 33 7.2.6 Wood . 33 7.3 Lattice steel towers . 33 7.3.1 General 33 7.3.6 Ultimate limit states . 34 7.3.8 Resistance of connections 34 7.3.9 Design assisted by testing 34 7.4 Steel poles . 35 7.4.1 General 35 7.4.2 Basis of design (EN 1993-1-1:2005 - Chapter 2) 35 7.4.6 Ultimate l

23、imit states (EN 1993-1-1:2005 - Chapter 6) . 35 7.4.8 Resistance of connections 35 BS EN 50341-2-6:2017EN 50341-2-6:2017 - 4 - Spain Page 7.4.9 Design assisted by testing 35 7.5 Wood poles . 36 7.5.1 General 36 7.5.2 Basis of design 36 7.5.5 Ultimate limit states . 36 7.6 Concrete poles 36 7.6.1 Gen

24、eral 36 7.6.4 Ultimate limit states . 36 7.6.5 Serviceability limit states . 36 7.6.6 Design assisted by testing 36 7.7 Guyed structures . 37 7.7.1 General 37 7.7.4 Ultimate limit states . 37 7.8 Other structures. 37 8 FOUNDATIONS 37 8.1 Introduction 37 8.2 Basis of geotechnical design (EN 1997-1:20

25、04 - Section 2) 37 8.2.2 Geotechnical design by calculation . 37 8.3 Soil investigation and geotechnical data (EN 1997-1:2004 - Section 3) . 39 8.6 Interactions between support foundations and soil . 40 9 CONDUCTORS AND EARTH-WIRES 40 9.2.4 Mechanical requirements 40 9.6 General requirements . 40 9.

26、6.2 Partial factor for conductors 40 10 INSULATORS 40 10.2 Standard electrical requirements 40 10.7 Mechanical requirements 40 11 HARDWARE 41 11.6 Mechanical requirements 41 11.9 Characteristics and dimensions of fittings . 41 Tables Table 5.2.1/ES.1 Conductor current density . Table 5.3.1/ES.1 g54g

27、87g68g81g71g68g85g71g3g76g81g86g88g79g68g87g76g82g81g3g79g72g89g72g79g86g3g73g82g85g3g85g68g81g74g72g3g44g3g11g20g3g78g57g3g31g3g56g80g3g148g3g21g23g24g3g78g57g12 Table 5.3.2/ES.1 Standard insulation levels for range II (Um 245 kV) . Table 5.3.3/ES.1 Recommended air clearances . Table 5.4/ES.1 Nomin

28、al voltages and highest grid voltages . Table 5.5/ES.1 Minimum air clearance distances, Del and Dpp, to avoid flashover . Table 5.8/ES.1 Coefficient K based on the oscillation angle . Table 5.9.6/ES.1 Additional clearances, Dadd, to other overhead power lines or overhead telecommunication lines . Ta

29、ble 8.3/ES.1 Indicative soil characteristics for the calculation of the foundation . Table G.6/ES.1 Fault duration related to touch voltage, UTp . BS EN 50341-2-6:2017Spain - 5 - EN 50341-2-6:2017 European foreword 1 The Spanish National Committee (NC) is identified by the following address: Asociac

30、in Espaola de Normalizacin (UNE) c/Gnova, 6 E 28004 Madrid Spain Tel. n: + 34 915 294 900 Fax n: + 34 91 310 45 96 Email: infoune.org Name of the relevant technical body: AEN/CTN 207/SC 7-11 “Lneas elctricas areas” (Overhead power lines) 2 The Spanish NC and its technical body AEN/CTN 207/SC 7-11 “O

31、verhead power lines” has prepared this Part 2-6 of EN 50341, listing the Spanish National Normative Aspects (NNA) under its sole responsibility, and duly passed it through the CENELEC and CLC/TC 11 procedures. NOTE: The Spanish NC also takes sole responsibility for the technically correct co-ordinat

32、ion of this EN 50341-2-6 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

33、Part 2-6 is normative in Spain and informative in other countries. 4 This document shall be read in conjunction with Part 1 (EN 50341-1). All clause numbers used in this NNA correspond to those of Part 1. Specific sub-clauses that are prefixed “ES”, are to be read as amendments to the relevant text

34、in Part 1. Any necessary clarification regarding the application of this combined NNA in conjunction with Part 1 shall be referred to the Spanish NC who will, in co-operation with CLC/TC 11, clarify the requirements. When no reference is made in this NNA to a specific sub-clause, then Part 1 applies

35、. 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 Spain. However, any “boxed value”, whether in Part 1 or in this NNA, shall not be amended in the direction of greater risk in a Project Specification. 6 The nationa

36、l Spanish standards/regulations related to overhead electrical lines exceeding 1 kV A.C. are listed in sub-clause 2.1/ES.1 and ES.2. NOTE: All national standards referred to in this NNA will be replaced by the relevant European Standards as soon as they become available and are declared by the Spani

37、sh NC to be applicable and thus reported to the secretary of CLC/TC 11. 7 The Spanish NC declares, in accordance with sub-clause 4.1 of Part 1, that “Approach 3” shall be used in Spain to stablish numerical values of actions. BS EN 50341-2-6:2017EN 50341-2-6:2017 - 6 - Spain 1 Scope 1.1 General (ncp

38、t) ES.1 General This NNA is applicable to any new line between two points, A and B, its modifications and extensions. 1.2 Field of application (A-dev) ES.1 RD 223/2008, ITC-LAT 08, sub-clause 6.3.2 The design and construction of overhead lines with covered conductors and voltages greater than 45 kV

39、shall respect the same electrical clearances as of overhead lines with bare conductors of the same voltage. 2 Normative references, definitions and symbols 2.1 Normative references (A-dev) ES.1 National normative regulations Royal Decree (RD) 223/2008, of 15th February 2008, approving the Regulation

40、 on technical and safety conditions for high voltage electrical lines and its Supplementary Technical Instructions ITC-LAT 01 to 09 Royal Decree (RD) 337/2014, of 9th May 2014, approving the Regulation on technical and safety conditions for high voltage power installations and its Supplementary Tech

41、nical Instructions ITC-RAT 01 to 23 Royal Decree (RD) 614/2001, of 8th June 2001, establishing the minimum health and safety requirements for the protection of workers against the electrical risk Royal Decree (RD) 1955/2000, of 1st December 2000, regulating the activities of transmission, distributi

42、on, marketing and supply of electrical energy and the procedures for the authorization of installations (ncpt) ES.2 National normative standards UNE 207016 “HV and HVH type concrete poles for overhead electrical lines” UNE 207017 “Lattice steel towers for distribution overhead electrical lines” UNE

43、207018 “Plate metallic supports for overhead electrical lines” 2.3 Symbols (ncpt) ES.1 Additional symbols asom minimum insulator set discharge gap, defined as shortest distance in straight line between live parts and earthed parts AT wind exposed pole area projected in a wind direction perpendicular

44、 plane in m2CS minimum security factor defined for each element and load case D clearance between same or different circuits phase conductors in metres F maximum sag in metres, for load cases defined in sub-clause 3.2.3 K coefficient depending on the conductors wind oscillation, it shall be selected

45、 from Table 5.8/ES.1 K coefficient depending on overhead lines nominal voltage. K = 0,85 for special category lines and K = 0,75 for other overhead lines L suspension set length in metres. For conductors attached to the pole with strain or post-insulator sets L = 0 BS EN 50341-2-6:2017Spain - 7 - EN

46、 50341-2-6:2017 VV reference wind velocity in km/h 3 Basis of design 3.2 Requirements of overhead lines 3.2.2 Reliability requirements (A-dev) ES.1 RD 223/2008, clause 16 For private overhead lines, a competent licensed technician, with the authorization of overhead lines owner, may adopt in emergen

47、cy situations the recommended provisional steps, immediately advising to the competent Administration body, which shall set the period to restore the regulation conditions. (ncpt) ES.2 Reliability levels The minimum reliability level shall be 1. Actions for wind and ice are defined in section 4. 3.2

48、.5 Strength coordination (snc) ES.1 Strength coordination Strength coordination is obtained by matching the security factors (CS) associated to each component and system of the overhead line. 3.6 Design values 3.6.2 Design value of an action (A-dev) ES.1 Design value of an action Actions shall not b

49、e affected by partial factors. 3.6.3 Design value of a material property (A-dev) ES.1 Partial factor for a material property The partial factor for a material property shall be: Xd = XK / CS Where: Xdis the design value of the material property XKis the characteristic value of the material property CS is the minimum security factor for each element and load case defined in sub-clause 4.13/ES.1 3.7 Partial factor method and design formula 3.7.2 Basic design formula (snc) ES.1 Basic design formula When considering a limit state of