EN 50164-2:2002

SLOVENSKI STANDARD
01-november-2002
Lightning protection components (LPC) - Part 2: Requirements for conductors and
earth electrodes
Lightning protection components (LPC) -- Part 2: Requirements for conductors and earth
electrodes
Blitzschutzbauteile -- Teil 2: Anforderungen an Leitungen und Erder
Composants de protection contre la foudre (CPF) -- Partie 2: Caractéristiques des
conducteurs et des électrodes de terre
Ta slovenski standard je istoveten z: EN 50164-2:2002
ICS:
91.120.40 =DãþLWDSUHGVWUHOR Lightning protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50164-2
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2002
ICS 91.120.40
English version
Lightning protection components (LPC)
Part 2: Requirements for conductors and earth electrodes

Composants de protection  Blitzschutzbauteile
contre la foudre (CPF) Teil 2: Anforderungen an Leitungen
Partie 2: Caractéristiques des conducteurs und Erder
et des électrodes
de terre
This European Standard was approved by CENELEC on 2002-03-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50164-2:2002 E
Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 81X, Lightning
protection.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 50164-2 on 2002-03-01.

The following dates were fixed:

- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-03-01

- latest date by which the national standards
conflicting with the EN have to be withdrawn (dow) 2005-03-01

Annexes designated "normative" are part of the body of the standard.
In this standard, annexes A, B, C and D are normative.
__________
- 3 - EN 50164-2:2002
Contents
Page
1 Scope. 4
2 Normative references . 4
3 Definitions. 4
4 Requirements. 5
4.1 Documentation. 5
4.2 Air termination conductors, air termination rods and down conductors. 6
4.3 Earth electrodes . 8
5 Tests. 12
5.1 General condition for tests . 12
5.2 Air termination conductors, air termination rods, earth lead-in rods,
down conductors and earth conductors . 12
5.3 Earth rods . 13
5.4 Joints for earth rods . 13
6 Electromagnetic compatibility (EMC) . 14

Annex A (normative) Environmental test for conductors, air termination rods
and earth lead-in rods . 17
Annex B (normative) Environmental test for earth conductors, earth rods
and earth lead-in rods . 18
Annex C (normative) Requirements for minimum cross sectional area, mechanical
and electrical characteristics, tests to be applied. 19
Annex D (normative) Requirements for minimum dimensions, mechanical and
electrical characteristics, tests to be applied. 20

Figure 1 – Typical test arrangement for the compression test by manual means. 15
Figure 2 – Typical test arrangement for the compression test by mechanical means . 15
Figure 3 – Typical test arrangement for adhesion test . 16

Table 1 – Material, configuration and minimum cross sectional area of air termination
conductors, air termination rods, earth lead-in rods and down conductors . 7
Table 2 – Mechanical and electrical characteristics of air termination conductors,
air termination rods, earth lead-in rods and down conductors . 8
Table 3 – Material, configuration and minimum dimensions of earth electrodes . 10
Table 4 – Mechanical and electrical characteristics of earth electrodes . 11
Table B.1 – Aqueous solution composition . 18

1 Scope
This European Standard specifies the requirements and tests for

- metallic conductors (other than "natural" conductors) that form part of the air termination
system and down conductors,
- metallic earth electrodes that form part of the earth termination system.

Lightning protection components (LPC) may also be suitable for use in hazardous atmospheres.
Regard should then be taken of the extra requirements necessary for the components to be
installed in such conditions.
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 50164-1 1999 Lightning protection components (LPC) -
Part 1: Requirements for connection components

EN 60068-2-52 1996 Environmental testing - Part 2: Tests - Test Kb: Salt mist, cyclic
(sodium chloride solution) (IEC 60068-2-52:1996)

EN ISO 6988 1994 Metallic and other non-organic coatings - Sulfur dioxide test with
general condensation of moisture (ISO 6988:1985)

IEC 61024-1-2 1998 Protection of structures against lightning - Part 1-2: General
Principles - Guide B - Design, installation, maintenance and
inspection of lightning protection systems

3 Definitions
For the purpose of this standard, the following definitions apply.

3.1
air termination system
part of an external lightning protection system which is intended to intercept and conduct lightning
flashes
3.2
air termination rod or air termination conductor
part of the air termination system for intercepting and conducting direct lightning flashes to the
structure
3.3
down conductor
part of an external lightning protection system which is intended to conduct lightning current from
the air-termination system to the earth-termination system

- 5 - EN 50164-2:2002
3.4
earth termination system
part of an external lightning protection system which is intended to conduct and disperse lightning
current to the earth
3.5
earth electrode
part or group of parts of the earth-termination system which provides direct electrical contact with
and disperses the lightning current to the earth

NOTE  Typical examples are earth rod, earth conductor and earth plate.

3.6
earth rod
earth electrode consisting of a metal rod driven into the ground
[IEC 60050 (604-04-06)]
3.7
earth conductor
earth electrode consisting of a conductor buried in the ground

3.8
earth plate
earth electrode consisting of a metal plate buried in the ground
[IEC 60050 (604-04-06)]
3.9
joint for earth rod
part of the earth termination system that facilitates the coupling of one section of an earth rod to
another, for the purpose of deep driving

3.10
driving head
tool that is used in those applications where it is necessary to drive the earth rod

3.11
earth lead-in rod
rod which is installed between the down conductor/test joint and the earth electrode

NOTE  Earth lead-in rods are used to improve mechanical stability.

4 Requirements
Conductors and earth electrodes shall be so designed and constructed that in normal use their
performance is reliable and without danger to persons and the surrounding.

The choice of a material depends on its ability to match the particular application requirements.

4.1 Documentation
The manufacturer or supplier of the conductors and earth electrodes shall provide adequate
information in his literature to ensure that the installer of the conductors and earth electrodes can
select and install the materials in a suitable and safe manner, in accordance with IEC 61024-1-2.

Compliance is checked by inspection.
4.2 Air termination conductors, air termination rods and down conductors

The material, configuration and minimum cross sectional area of the conductors, shall be in
accordance with Table 1. Their mechanical and electrical characteristics shall be in accordance
with Table 2.
Other materials may be used if they possess equivalent mechanical and electrical characteristics
and corrosion resistance properties for the intended application.

Other configurations may be used if the relevant dimensions are met.

The materials given in Table 1 may be covered with a coating of either plastic material such as ultra
violet stabilized polyvinyl chloride (pvc), or equivalent material, depending on its application.

NOTE 1  Requirements and tests for ultra violet stabilized materials are under consideration.

Coated conductors shall be corrosion resistant and the coating shall exhibit good adherence to the
base material.
Compliance is checked by the test of 5.2.

NOTE 2  A summary of requirements for minimum cross sectional area, mechanical and electrical characteristics as well
as tests is given in Annex C.
- 7 - EN 50164-2:2002
Table 1 - Material, configuration and minimum cross sectional area of air termination
conductors, air termination rods, earth lead-in rods and down conductors

Material Configuration Minimum cross Comments
a
sectional area
Copper Solid tape 50 mm² 2 mm min. thickness
e
Solid round 50 mm² 8 mm diameter
Stranded 50 mm² 1,7 mm min. diameter of each strand
f,g
Solid round 200 mm² 16 mm diameter
b
Tin plated copper Solid tape 50 mm² 2 mm min. thickness
e
Solid round 50 mm² 8 mm diameter
Stranded 50 mm² 1,7 mm min. diameter of each strand
f,g
Solid round 200 mm² 16 mm diameter
Aluminium Solid tape 70 mm² 3 mm min. thickness
Solid round 50 mm² 8 mm diameter
Stranded 50 mm² 1,7 mm min. diameter of each strand
Aluminium alloy Solid tape 50 mm ² 2,5 mm min. thickness
Solid round 50 mm² 8 mm diameter
Stranded 50 mm² 1,7 mm min. diameter of each strand
f
Solid round 200 mm² 16 mm diameter
c
Galvanized steel Solid tape 50 mm² 2,5 mm min. thickness
Solid round 50 mm² 8 mm diameter
Stranded 50 mm² 1,7 mm min. diameter of each strand
f,g
Solid round 200 mm² 16 mm diameter
d h
Stainless steel Solid tape 50 mm² 2 mm min. thickness
h
Solid round 50 mm² 8 mm diameter
Stranded 70 mm² 1,7 mm min. diameter of each strand
f,g
Solid round 200 mm² 16 mm diameter
a
Allowable tolerance: - 3 %.
b
Hot dipped or electroplated; minimum thickness coating of 1 micron.
c
The coating should be smooth, continuous and free from flux stains with a minimum thickness coating of 50 microns.
d
Chromium ≥ 16 %; Nickel ≥ 8 %; Carbon ≤ 0,07 %.
e
50 mm² (8 mm diameter) may be reduced to 28 mm² (6 mm diameter) in certain applications where mechanical strength is not an
essential requirement. Consideration should in this case, be given to reducing the spacing of the fasteners.
f
Applicable for air termination rods only. For applications where mechanical stress such as wind loading is not critical, a 10 mm
diameter, 1 m long maximum air termination rod may be used.
g
Applicable for earth lead-in rods only.
h
If thermal and mechanical considerations are important then these values should be increased to 78 mm² (10 mm diameter) for solid
round and 75 mm² (3 mm minimum thickness) for solid tape.

Table 2 - Mechanical and electrical characteristics of air termination con
...