SIST EN 12465:2002
(Main)Wood poles for overhead lines - Durability requirements
Wood poles for overhead lines - Durability requirements
This European Standard specifies the requirements for durability and preservative treatment of wood poles for overhead transmission and telecommunication lines.
This standard covers only single poles under cantilever or compression loading. For example, this standard does not cover poles used as beams.
The provision of poles for use in any overhead line or cable infrastructure shall take into account a range of factors not covered by this standard which will necessitate the specification by the end user of complementary and synonymous attributes to those defined in this standard. This refers to requirements for a number of factors including safety, overhead plant, handling, fittings, installation machinery and working practices including climbing.
No attempt has been made to quantify the service life that may be expected from a pole as this will depend on its geographical location, the associated climate of its service environment and either the natural durability of the heartwood of the species selected, or the combination between selection of species, preservative type, and requirements of penetration and retention and any incised zones, any of which may be specified by the purchaser.
Holzmaste für Freileitungen - Anforderungen an die Dauerhaftigkeit
Diese Europäische Norm legt Anforderungen für die Dauerhaftigkeit und Schutzbehandlung von Holzmasten für Stark-stromübertragungs- und Fernmeldefreileitungen fest.
Die Norm gilt nur für einstielige Maste als Kragarm und/oder unter Druckbeanspruchung. Diese Norm berücksichtigt zum Beispiel nicht die Verwendung von Masten als Biegeträger.
Der Einsatz von Masten in Freileitungen, erfordert die Berücksichtigung einer Reihe von Faktoren, die in der vorliegenden Norm nicht erfaßt sind; der Betreiber kann seine speziellen Anforderungen mit ergänzenden Anforderungen zu den in dieser Norm definierten vervollständigen. Das betrifft Anforderungen im Hinblick auf die Eignung einer Anzahl von Faktoren, einschließlich Sicherheit, Freileitungsanlage, Handhabung, Zubehör, Hilfsmittel für die Errichtung und Arbeitsvorgängen einschließlich Mastbesteigung.
Es wurde nicht versucht, die Nutzungsdauer zu bewerten, die von einem Mast erwartet werden kann, da dies von seiner geographischen Lage, dem damit zusammenhängenden Klima und der Betriebsumgebung sowie von der natürlichen Dauerhaftigkeit des Kernholzes der ausgewählten Holzarten abhängt; oder von der Kombination von Holzarten und Holzschutzmitteltyp sowie von den Anforderungen an Eindringtiefe und Aufnahmemenge und Perforationszonen, die vom Besteller festgelegt werden dürfen.
Poteaux en bois pour lignes aériennes - Exigences de durabilité
La présente norme spécifie les exigences relatives a la durabilité et au traitement avec produit de préservation des poteaux en bois destinés aux lignes aériennes de transmission et de télécommunication.
La présente norme s'applique uniquement aux poteaux simples soumis a une charge en porte-a-faux et/ou a une charge en compression. La présente norme ne concerne pas les poteaux utilisés comme poutres, par exemple.
Lors de l'utilisation de poteaux en bois pour un usage au sein de toute infrastructure aérienne de lignes ou de câbles, il est nécessaire de prendre en compte une série de facteurs sortant du domaine d'application de la présente norme, et nécessitant de la part de l'acheteur final, la spécification de prescriptions supplémentaires et synonymes de celles qui sont définies dans la présente norme. Cette nécessité a trait aux prescriptions de conformité a l'égard d'un certain nombre de facteurs relatifs a la sécurité, aux installations aériennes, a la manutention, aux équipements, aux machines d'installation et aux pratiques d'usage, y compris l'escalade.
Aucune tentative n'a été faite pour quantifier la durée de service théorique d'un poteau, du fait que cette derniere dépend de la situation géographique, du climat lié a l'environnement d'utilisation, et selon les cas, de la durabilité naturelle du duramen des essences sélectionnées ou de la combinaison entre une sélection d'essences, du type de traitement avec produit de préservation, et des exigences de pénétration et de rétention, ainsi que la présence de toute zone d'incision pouvant faire l'objet d'une spécification de la part de l'acheteur.
Leseni drogovi za nadzemne vode - Zahteve za trajnost
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12465:2002
01-julij-2002
Leseni drogovi za nadzemne vode - Zahteve za trajnost
Wood poles for overhead lines - Durability requirements
Holzmaste für Freileitungen - Anforderungen an die Dauerhaftigkeit
Poteaux en bois pour lignes aériennes - Exigences de durabilité
Ta slovenski standard je istoveten z: EN 12465:2001
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
79.080 Polizdelki iz lesa Semi-manufactures of timber
SIST EN 12465:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12465:2002
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SIST EN 12465:2002
EUROPEAN STANDARD
EN 12465
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2001
ICS 29.240.20; 79.080
English version
Wood poles for overhead lines - Durability requirements
Poteaux en bois pour lignes aériennes - Exigences de Holzmaste für Freileitungen -
durabilité Dauerfestigkeitsanforderungen
This European Standard was approved by CEN on 13 October 2001.
CEN 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 Management Centre or to any CEN 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 CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12465:2001 E
worldwide for CEN national Members.
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SIST EN 12465:2002
EN 12465:2001 (E)
Contents
page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references.5
3 Terms and definitions .6
4 Symbols and abbreviations.6
5 General requirements .6
5.1 Requirements for raw materials .6
5.1.1 Wood poles .6
5.1.2 Wood preservative.7
5.2 Preservative-treated wood poles.7
5.2.1 General .7
5.2.2 Penetration requirement .7
5.2.3 Retention requirement .7
5.2.4 Tolerances for preservative-treated charges.7
6 Factory production control.8
6.1 General.8
6.2 Frequency of direct testing.8
6.3 Frequency of indirect testing .8
7 Sampling.8
7.1 General.8
7.2 Selection of test samples from sampling unit.8
Annex A (informative) Scheme for sampling preservative-treated wood poles by taking borings .9
Bibliography .10
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SIST EN 12465:2002
EN 12465:2001 (E)
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 124 "Structural timber", the
secretariat of which is held by DS.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by May 2002, and conflicting national standards shall be withdrawn at the latest by
May 2002.
This standard includes an informative annex A on a scheme for sampling preservative-treated timber.
This standard contains a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
Switzerland and the United Kingdom.
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SIST EN 12465:2002
EN 12465:2001 (E)
Introduction
This standard is one of five standards covering requirements for visual or machine grading, test methods,
determination of characteristic values, methods of specifying durability and sizes.
This standard is concerned with the durability characteristics of wood poles for overhead power and
telecommunication lines. It assumes that all such poles will be constructed from round timber in which the finished
product comprises either a central core of heartwood surrounded by a zone of sapwood or the heartwood only.
Such assumptions dictate that where sapwood is present preservative treatment is normally required in order to
provide the poles with sufficient enhanced durability unless the amount of sapwood present is such that its loss
would not compromise the integrity of the pole during its service life, and the heartwood has sufficient natural
durability as required in this standard.
NOTE Some timbers (e.g. Fir and Spruce) do not allow a ready differentiation between heartwood and sapwood. EN 351-1
specifies how such timbers should be treated when preservation is required.
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SIST EN 12465:2002
EN 12465:2001 (E)
1 Scope
This European Standard specifies the requirements for durability and preservative treatment of wood poles for
overhead transmission and telecommunication lines.
This standard covers only single poles under cantilever or compression loading. For example, this standard does
not cover poles used as beams.
The provision of poles for use in any overhead line or cable infrastructure shall take into account a range of factors
not covered by this standard which will necessitate the specification by the end user of complementary and
synonymous attributes to those defined in this standard. This refers to requirements for a number of factors
including safety, overhead plant, handling, fittings, installation machinery and working practices including climbing.
No attempt has been made to quantify the service life that may be expected from a pole as this will depend on its
geographical location, the associated climate of its service environment and either the natural durability of the
heartwood of the species selected, or the combination between selection of species, preservative type, and
requirements of penetration and retention and any incised zones, any of which may be specified by the purchaser.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 252, Field test method for determining the relative protective effectiveness of a wood preservative
in ground contact.
EN 350-1, Durability of wood and wood-based products. Natural durability of solid wood - Part 1:
Principles of testing and classification of the natural durability of wood.
EN 350-2, Durability of wood and wood-based products. Natural durability of solid wood - Part 2:
Guide to natural durability and treatability of selected wood species of importance in Europe.
EN 351-1:1995, Durability of wood and wood-based products. Preservative-treated solid wood - Part
1: Classification of preservative penetration and retention.
EN 351-2:1995, Durability of wood and wood-based products. Preservative-treated solid wood - Part
2: Guidance on sampling for analysis of preservative-treated wood.
EN 599-1, Durability
...
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