SIST EN IEC 60794-4-30:2021

Optical fibre cables - Part 4-30: Aerial optical cables along electrical power lines - Family specification for optical phase conductor (OPPC) optical cables (IEC 60794-4-30:2021)

This part of IEC 60794, which is a family specification, specifies the optical fibre, cable elements,
cable construction requirements, main requirements for installation and operating conditions,
cable design characteristics and test for OPPC (optical phase conductor), used for carrying
current as well as communication and data transmission. The corresponding environmental
declaration can be built according to IEC TR 62839-1.
The OPPC is a substitute for a conventional phase bare conductor containing optical fibres.
Usually, the fibres are embedded loosely in protective buffer tubes. To fulfil mechanical and
electrical requirements, an armouring of one or more layers with aluminium, aluminium alloy,
and aluminium clad steel, galvanized steel or a mixture of them is helically stranded.

Lichtwellenleiterkabel - Teil 4-30: Lichtwellenleiter-Luftkabel entlang Starkstrom-Freileitungen - Familienspezifikation für OPPC-Kabel (LWL-Phasenseil) (IEC 60794-4-30:2021)

Câbles à fibres optiques - Partie 4-30: Câbles optiques aériens le long des lignes électriques de puissance - Spécification de famille pour les conducteurs de phase à fibres optiques (OPPC) (IEC 60794-4-30:2021)

IEC 60794-4-30:2021 spécifie les fibres optiques, les éléments de câble, les exigences de construction des câbles, les principales exigences sur les conditions d'installation et de fonctionnement, les caractéristiques de conception des câbles et les essais sur les conducteurs de phase à fibres optiques (OPPC - optical phase conductor), utilisés pour transporter du courant, mais aussi pour les communications et la transmission de données. La déclaration environnementale correspondante peut être établie conformément à l'IEC TR 62839-1. Un conducteur de phase à fibres optiques (OPPC) peut remplacer un conducteur nu de phase conventionnel contenant des fibres optiques. Habituellement, les fibres sont enfermées librement dans des tubes de protection. Pour satisfaire aux exigences mécaniques et électriques, une armure constituée d'une ou plusieurs couches d'aluminium, d'un alliage d'aluminium, d'acier plaqué aluminium, d'acier galvanisé ou d'un mélange de ceux-ci est toronnée de manière hélicoïdale.

Optični kabli - 4-30. del: Nadzemni optični kabli vzdolž elektroenergetskih vodov - Skupinska specifikacija za optični fazni vodnik (OPPC) (IEC 60794-4-30:2021)

General Information

• Status: Published
• Publication Date: 09-Jun-2021
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Jun-2021
• Due Date: 09-Aug-2021
• Completion Date: 10-Jun-2021
• Ref Project: EN IEC 60794-4-30:2021 - Optical fibre cables - Part 4-30: Aerial optical cables along electrical power lines - Family specification for optical phase conductor (OPPC) optical cables

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60794-4-30:2021
01-julij-2021
Optični kabli - 4-30. del: Nadzemni optični kabli vzdolž elektroenergetskih vodov -
Skupinska specifikacija za optični fazni vodnik (OPPC) (IEC 60794-4-30:2021)
Optical fibre cables - Part 4-30: Aerial optical cables along electrical power lines - Family
specification for optical phase conductor (OPPC) optical cables (IEC 60794-4-30:2021)
Lichtwellenleiterkabel - Teil 4-30: Lichtwellenleiter-Luftkabel entlang Starkstrom-
Freileitungen - Familienspezifikation für OPPC-Kabel (LWL-Phasenseil) (IEC 60794-4-
30:2021)
Câbles à fibres optiques - Partie 4-30: Câbles optiques aériens le long des lignes
électriques de puissance - Spécification de famille pour les conducteurs de phase à
fibres optiques (OPPC) (IEC 60794-4-30:2021)
Ta slovenski standard je istoveten z: EN IEC 60794-4-30:2021
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
SIST EN IEC 60794-4-30:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60794-4-30:2021

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SIST EN IEC 60794-4-30:2021


EUROPEAN STANDARD EN IEC 60794-4-30

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2021
ICS 33.180.10

English Version
Optical fibre cables - Part 4-30: Aerial optical cables along
electrical power lines - Family specification for optical phase
conductor (OPPC) optical cables
(IEC 60794-4-30:2021)
Câbles à fibres optiques - Partie 4-30: Câbles optiques Lichtwellenleiterkabel - Teil 4-30: Lichtwellenleiter-Luftkabel
aériens le long des lignes électriques de puissance - entlang Starkstrom-Freileitungen - Familienspezifikation für
Spécification de famille pour les conducteurs de phase à OPPC-Kabel (LWL-Phasenseil)
fibres optiques (OPPC) (IEC 60794-4-30:2021)
(IEC 60794-4-30:2021)
This European Standard was approved by CENELEC on 2021-05-12. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60794-4-30:2021 E

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SIST EN IEC 60794-4-30:2021
EN IEC 60794-4-30:2021 (E)
European foreword
The text of document 86A/2079/FDIS, future edition 1 of IEC 60794-4-30, prepared by SC 86A "Fibres
and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60794-4-30:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-02-12
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-05-12
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60794-4-30:2021 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60793-1-44 NOTE Harmonized as EN 60793-1-44
IEC 60793-1-48 NOTE Harmonized as EN 60793-1-48
IEC 60794-1-2 NOTE Harmonized as EN IEC 60794-1-2
IEC 60794-1-23 NOTE Harmonized as EN IEC 60794-1-23
IEC 60794-4 (series) NOTE Harmonized as EN IEC 60794-4 (series)
ISO 9001 NOTE Harmonized as EN ISO 9001
2

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SIST EN IEC 60794-4-30:2021
EN IEC 60794-4-30:2021 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60104 - Aluminium-magnesium-silicon alloy wire for - -
overhead line conductors
IEC 60468 - Method of measurement of resistivity of metallic - -
materials
IEC 60793-1-40 - Optical fibres - Part 1-40: Attenuation EN IEC 60793-1-40 -
measurement methods
IEC 60793-2-50 - Optical fibres - Part 2-50: Product specifications - EN IEC 60793-2-50 -
Sectional specification for class B single-mode
fibres
IEC 60794-1-1 - Optical fibre cables - Part 1-1: Generic EN 60794-1-1 -
specification - General
IEC 60794-1-21 - Optical fibre cables - Part 1-21: Generic EN 60794-1-21 -
specification - Basic optical cable test procedures -
Mechanical tests methods
IEC 60794-1-22 - Optical fibre cables - Part 1-22: Generic EN IEC 60794-1-22 -
specification - Basic optical cable test procedures -
Environmental test methods
IEC 60794-1-24 - Optical fibre cables - Part 1-24: Generic EN 60794-1-24 -
specification - Basic optical cable test procedures -
Electrical test methods
1
IEC 60794-1-219 - Optical fibre cables - Part 1-219: Generic EN IEC 60794-1-219 -
specification - Basic optical cable test procedures -
Material compatibility test, Method F19
IEC 60794-4 - Optical fibre cables - Part 4: Sectional EN IEC 60794-4 -
specification - Aerial optical cables along electrical
power lines
IEC 60888 - Zinc-coated steel wires for stranded conductors - -

1
Under preparation. Stage at time of publication: prEN IEC 60794-1-219.
3

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SIST EN IEC 60794-4-30:2021
EN IEC 60794-4-30:2021 (E)
Publication Year Title EN/HD Year
IEC 60889 - Hard-drawn aluminium wire for overhead line EN 60889 -
conductors
IEC 61089 - Round wire concentric lay overhead electrical - -
stranded conductors
IEC 61232 - Aluminium-clad steel wires for electrical purposes EN 61232 -
IEC 61394 - Overhead lines - Requirements for greases for EN 61394 -
aluminium, aluminium alloy and steel bare
conductors
IEC 61395 - Overhead electrical conductors - Creep test EN 61395 -
procedures for stranded conductors
IEC 62219 - Overhead electrical conductors - Formed wire, EN 62219 -
concentric lay, stranded conductors

4

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SIST EN IEC 60794-4-30:2021



IEC 60794-4-30

®


Edition 1.0 2021-04




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Optical fibre cables –

Part 4-30: Aerial optical cables along electrical power lines – Family

specification for optical phase conductor (OPPC) optical cables



Câbles à fibres optiques –

Partie 4-30: Câbles optiques aériens le long des lignes électriques de


puissance – Spécification de famille pour les conducteurs de phase à fibres

optiques (OPPC)












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.10 ISBN 978-2-8322-9594-6




Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN IEC 60794-4-30:2021
– 2 – IEC 60794-4-30:2021 © IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Symbols and abbreviated terms . 8
5 Optical fibre . 8
6 Cable elements . 8
7 Cable construction . 8
7.1 General . 8
7.2 Anti-corrosion . 9
8 Main installation requirements . 9
8.1 General . 9
8.2 Installation methods and conditions of OPPC . 9
8.3 Installation methods and conditions of the fittings . 10
8.4 Anti-twist . 10
8.5 Installation methods and conditions of the closure . 10
9 Cable design characteristics . 10
10 Cable tests . 11
10.1 General . 11
10.2 Classification of tests . 12
10.2.1 Type test . 12
10.2.2 Factory acceptance tests . 12
10.2.3 Routine tests . 12
10.3 Tensile performance . 12
10.4 Aeolian vibration . 13
10.5 Creep. 13
10.6 Sheave test . 13
10.7 Stress-strain test . 14
10.8 Breaking strength . 14
10.9 Twist . 14
10.9.1 General . 14
10.9.2 Set up . 14
10.9.3 Procedure . 15
10.10 Temperature cycling . 15
10.11 Water penetration (applicable to optical unit only) . 15
10.12 Compound flow (drip) (applicable to optical unit only) . 15
10.13 Fibre coating compatibility . 15
10.14 Salt spray corrosion test . 16
10.15 DC resistance test . 16
10.16 Short-circuit . 16
10.17 Lightning test . 17
10.18 Current-temperature test . 17
10.19 Fitting compatibility . 17
11 Packaging and marking . 18
12 Quality assurance . 18
Annex A (informative) Typical OPPC structures . 19

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SIST EN IEC 60794-4-30:2021
IEC 60794-4-30:2021 © IEC 2021 – 3 –
Annex B (informative) Installation example . 20
Annex C (informative) Packaging and marking . 22
Bibliography . 23

Figure A.1 – OPPC example structures . 19
Figure B.1 – OPPC’s closure installation example with support method . 20
Figure B.2 – OPPC’s closure installation example with suspension method . 20
Figure B.3 – Closure installation example with dead-end . 21
Figure B.4 – Closure installation example with a suspension clamp . 21

Table 1 – Cable design characteristics . 10
Table 2 – Lightning test conditions and parameters to be informed in the test report . 17

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– 4 – IEC 60794-4-30:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

OPTICAL FIBRE CABLES –

Part 4-30: Aerial optical cables along electrical power lines – Family
specification for optical phase conductor (OPPC) optical cables

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60794-4-30 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical
committee 86: Fibre optics. It is an International Standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86A/2079/FDIS 86A/2088/RVD

Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.

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SIST EN IEC 60794-4-30:2021
IEC 60794-4-30:2021 © IEC 2021 – 5 –
A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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OPTICAL FIBRE CABLES –

Part 4-30: Aerial optical cables along electrical power lines – Family
specification for optical phase conductor (OPPC) optical cables



1 Scope
This part of IEC 60794, which is a family specification, specifies the optical fibre, cable elements,
cable construction requirements, main requirements for installation and operating conditions,
cable design characteristics and test for OPPC (optical phase conductor), used for carrying
current as well as communication and data transmission. The corresponding environmental
declaration can be built according to IEC TR 62839-1.
The OPPC is a substitute for a conventional phase bare conductor containing optical fibres.
Usually, the fibres are embedded loosely in protective buffer tubes. To fulfil mechanical and
electrical requirements, an armouring of one or more layers with aluminium, aluminium alloy,
and aluminium clad steel, galvanized steel or a mixture of them is helically stranded.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60104, Aluminium-magnesium-silicon alloy wire for overhead line conductors
IEC 60468, Method of measurement of resistivity of metallic materials
IEC 60793-1-40, Optical fibres – Part 1-40: Attenuation measurement methods
IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specifications for
class B single-mode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General
IEC 60794-1-21, Optical fibre cables – Part 1-21: Generic specification – Basic optical cable
test procedures – Mechanical test methods
IEC 60794-1-22, Optical fibre cables – Part 1-22: Generic specification – Basic optical cable
test procedures – Environmental test methods
IEC 60794-1-24, Optical fibre cables – Part 1-24: Generic specification – Basic optical cable
test procedures – Electrical test methods
IEC 60794-1-219, Optical fibre cables – Part 1-219: Generic specification – Basic optical cable
1
test procedures – Material compatibility test, method F19
____________
1
Under preparation. Stage at the time of publication: IEC/CCDV 60794-1-219:2020.

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SIST EN IEC 60794-4-30:2021
IEC 60794-4-30:2021 © IEC 2021 – 7 –
IEC 60794-4, Optical fibre cables – Part 4: Sectional specification – Aerial optical cables along
electrical power lines
IEC 60888, Zinc-coated steel wires for stranded conductors
IEC 60889, Hard-drawn aluminium wire for overhead line conductors
IEC 61089, Round wire concentric lay overhead electrical stranded conductors
IEC 61232, Aluminium-clad steel wires for electrical purposes
IEC 61394, Overhead lines – Requirements for greases for aluminium, aluminium alloy and
steel bare conductors
IEC 61395, Overhead electrical conductors – Creep test procedures for stranded conductors
IEC 62219, Overhead electrical conductors – Formed wire, concentric lay, stranded conductors
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60794-1-1,
IEC 60794-4 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
optical phase conductor
OPPC
metallic hybrid optical cable that has the dual performance functions of a conventional phase
conductor with telecommunication capabilities
3.2
current-carrying capacity
calculated value for the maximum continuous current carrying capacity without degradation of
of any element of the cable under specific conditions
Note 1 to entry: The value depends on various parameters (e.g. solar, wind speed, ambient temperature).
Note 2 to entry: If the construction contains an aluminium tube or aluminium slotted core, these elements are
considered conductive parts.
3.3
operation temperature
steady state temperature the OPPC cable will reach during standard operation at the current
carrying capacity, without degradation of any element’s performance requirements under
specific conditions
3.4
emergency condition temperature
maximum temperature the OPPC cable will reach during emergency operation for a limited
period of time during cable’s lifetime without degradation of any element’s performance
requirements

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3.5
emergency condition duration
OPPC cable’s accumulated period running in emergency temperature mode within its lifetime
4 Symbols and abbreviated terms
For the purpose of this document, the abbreviated terms given in IEC 60794-1-1 apply.
5 Optical fibre
Single-mode optical fibres which comply with the relevant part of IEC 60793-2-50 shall be used.
Fibres other than those specified above can be used, if agreed between the customer and
supplier. The cabled fibre shall conform to IEC 60794-4.
Any reflective discontinuity specified with the optical return loss measurement shall be greater
than 55,0 dB.
The test method best suited to provide the functional requirements shall be in accordance with
IEC 60793-1-40.
6 Cable elements
Refer to the relevant parts of the IEC 60794-4 series.
a) The optical fibre unit(s) shall house the optical fibres and protect them from damage due to
environmental or mechanical forces such as longitudinal compression, crushing, bending,
twisting, tensile stress, long- and short-term heat effects caused by environmental variations
or by atmospheric discharges.
b) For loose tube constructions, one or more primary coated fibres or optical elements are
packaged loosely in a tube construction, with a suitable water-blocking system. The tube(s)
may be fabricated from stainless steel, aluminium, aluminium alloy, or a heat-resistant non-
metallic material. The tube diameter shall be agreed between the customer and the supplier.
c) When used in the tube, the filling compound shall not flow at the cable maximum operation
temperature or freeze at its lowest operation temperature.
d) The wire types can be from one or more of the following standards and their mechanical
properties shall comply, before stranding, with the requirements of the standards indicated:
– aluminium alloy according to IEC 60104;
– zinc-coated steel according to IEC 60888;
– hard-drawn aluminum according to IEC 60889;
– aluminum-clad steel according to IEC 61232.
Other wire types can be considered; the requirements shall be agreed between customer
and manufacturer.
e) Each cable element shall be compatible.
7 Cable construction
7.1 General
Refer to the relevant parts of the IEC 60794-4 series.
An OPPC consists of bearing elements, conductor elements and optical fibre units. Usually,
optical fibre units are within the bearing elements.

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IEC 60794-4-30:2021 © IEC 2021 – 9 –
If the OPPC includes several tubes with fibres, it shall be possible to identify each individual
fibre and tube throughout the length of the cable. Use of an appropriate colour code is an
accepted methodology.
The stranded wires may be round according to IEC 61089 or have other cross-sectional shapes,
i.e. trapezoidal or z-form according to IEC 62219. Unless other requirements are mutually
agreed between the customer and the supplier, after stranding, the OPPC shall comply with
IEC 61089 or IEC 62219.
Typical OPPC structures with outer round wires are shown in Annex A. Formed wires can also
be used.
7.2 Anti-corrosion
In order to reduce the risk of corrosion, the wires on the strands and the tube protecting the
fibre optic cable element(s) should be composed of the same metal or be coated with grease.
If used, the type and the amount of grease to be applied shall be in accordance with IEC 61394
or shall be defined between the supplier and the customer.
8 Main installation requirements
8.1 General
Installation and operating conditions shall be agreed between customer and supplier. It is
recommended that a detailed study of the
...