EN 62701:2014

Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears

IEC 62701:2014 specifies requirements for recycled mineral insulating oils intended for use in transformers, switchgear, and similar electrical equipment in which oil is required for insulation and heat transfer. These oils are produced by processes employed offsite. Oils treated and reconditioned on-site are not within the scope of this standard. Oils with and without additives are within the scope of this standard. Such oils will have originally been supplied in compliance with a recognized unused mineral insulating oil specification. This standard does not differentiate between the methods used to recycle mineral insulating oil. This standard does not apply to mineral insulating oils used as impregnates in cables or capacitors.

Flüssigkeiten für elektrotechnische Anwendungen - Recycelte Isolieröle auf Mineralölbasis für Transformatoren und Schaltgeräte

Fluides pour applications électrotechniques - Huiles minérales isolantes recyclées pour transformateurs et appareillages de connexion

L'IEC 62701:2014 stipule les exigences relatives aux huiles minérales isolantes recyclées destinées à être utilisées dans les transformateurs, les appareillages de connexion et les matériels électriques analogues, dans lesquels l'huile est nécessaire comme fluide isolant et caloporteur. Ces huiles sont produites selon des procédés mis en oeuvre hors site. Les huiles traitées in situ et reconditionnées ne sont pas couvertes par la présente norme. Cette norme s'applique aux huiles avec ou sans additifs. Ces huiles auront initialement été fournies en conformité avec une spécification d'huile minérale isolante neuve reconnue. La présente norme n'établit aucune distinction entre les méthodes utilisées pour recycler les huiles minérales isolantes. Cette norme ne concerne pas les huiles minérales isolantes utilisées comme imprégnants dans des câbles ou des condensateurs.

Tekočine za elektrotehniko - Reciklirana mineralna izolacijska olja za transformatorje in krmilne naprave (IEC 62701:2014)

Ta mednarodni standard določa zahteve za reciklirana mineralna izolacijska olja za uporabo v transformatorjih, krmilnih napravah in podobni električni opremi, pri kateri je olje potrebno za izolacijo in prenos toplote.
Ta olja so izdelana v zunanjih procesih.
Ta standard ne zajema olj, obdelanih ali obnovljenih na kraju samem.
Ta standard zajema olja z aditivi in brez njih.
Takšna olja so bila prvotno dobavljena v skladu s priznano specifikacijo za neuporabljena mineralna izolacijska olja.
Ta standard ne razlikuje med metodami, ki se uporabljajo za recikliranje mineralnega izolacijskega olja.
Ta standard ne velja za mineralna izolacijska olja, ki se uporabljajo kot sredstva za impregnacijo v kablih ali kondenzatorjih.
V tem standardu veljajo naslednje točke standarda IEC 60296:2012:
– 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9;
– 4.1, 4.3, 4.4;
– 5.1, 5.5;
– 6.1, 6.2, 6.4, 6.5, 6.6, 6.8, 6.9, 6.10, 6.11.1, 6.11.3, 6.11.4, 6.12, 6.14, 6.15, 6.16;
– 7.1.
OPOMBA: Nekatere vrste ponovno rafiniranih olj so glede lastnosti enake neuporabljenim oljem in za njih velja standard IEC 60296. To mora navesti proizvajalec.

General Information

• Status: Withdrawn
• Publication Date: 13-Nov-2014
• ICS: 29.040 - Insulating fluids
• Technical Committee: CLC/SR 10 - Fluids for electrotechnical applications
• Drafting Committee: IEC/TC 10 - IEC_TC_10
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 19-May-2016
• Ref Project: SIST EN 62701:2015 - Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears (IEC 62701:2014)

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2015
7HNRþLQH]DHOHNWURWHKQLNR5HFLNOLUDQDPLQHUDOQDL]RODFLMVNDROMD]D
WUDQVIRUPDWRUMHLQNUPLOQHQDSUDYH,(&
Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers
and switchgears (IEC 62701:2014)
Flüssigkeiten für elektrotechnische Anwendungen - Recycelte Isolieröle auf
Mineralölbasis für Transformatoren und Schaltgeräte
Fluides pour applications électrotechniques - Huiles minérales isolantes recyclées pour
transformateurs et appareillages de connexion
Ta slovenski standard je istoveten z: EN 62701:2014
ICS:
29.040.10 Izolacijska olja Insulating oils
29.130.01 Stikalne in krmilne naprave Switchgear and controlgear
na splošno in general
29.180 Transformatorji. Dušilke Transformers. Reactors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62701
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2014
ICS 29.040
English Version
Fluids for electrotechnical applications - Recycled mineral
insulating oils for transformers and switchgears
(IEC 62701:2014)
Fluides pour applications électrotechniques - Huiles Flüssigkeiten für elektrotechnische Anwendungen -
minérales isolantes recyclées pour transformateurs et Recycelte Isolieröle auf Mineralölbasis für Transformatoren
appareillages de connexion und Schaltgeräte
(CEI 62701:2014) (IEC 62701:2014)
This European Standard was approved by CENELEC on 2014-04-15. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62701:2014 E
Foreword
The text of document 10/908/FDIS, future edition 1 of IEC 62701, prepared by IEC TC 10 "Fluids for
electrotechnical applications" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62701:2014.
The following dates are fixed:

• latest date by which the document has (dop) 2015-05-14
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-04-15
• latest date by which the national
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 62701:2014 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 60867 NOTE Harmonised as EN 60867.

- 3 - EN 62701:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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
Pu blication Year Title EN/HD Year
IEC 60156 -  Insulating liquids - Determination of the EN 60156 -
breakdown voltage at power frequency -
Test method
IEC 60247 -  Insulating liquids - Measurement of EN 60247 -
relative permittivity, dielectric dissipation
factor (tan d) and d.c. resistivity
IEC 60296 2012 Fluids for electrotechnical applications - EN 60296 2012
Unused mineral insulating oils for
transformers and switchgear
IEC 60422 -  Mineral insulating oils in electrical EN 60422 -
equipment - Supervision and
maintenance guidance
IEC 60628 -  Gassing of insulating liquids under HD 488 S1 -
electrical stress and ionization
IEC 60666 -  Detection and determination of specified EN 60666 -
additives in mineral insulating oils
IEC 60814 -  Insulating liquids - Oil-impregnated paper EN 60814 -
and pressboard - Determination of water
by automatic coulometric Karl Fischer
titration
IEC 60970 -  Insulating liquids - Methods for counting EN 60970 -
and sizing particles
+EN 2008
60970:2007/corrigendum
Jan. 2008
IEC 61125 1992 Unused hydrocarbon based insulating EN 61125 1993
liquids - Test methods for evaluating the
oxidation stability
IEC 61198 -  Mineral insulating oils - Methods for the EN 61198 -
determination of 2-furfural and related
compounds
IEC 61619 -  Insulating liquids - Contamination by EN 61619 -
polychlorinated biphenyls (PCBs) -
Method of determination by capillary
column gas chromatography
IEC 61620 -  Insulating liquids - Determination of the EN 61620 -
dielectric dissipation factor by
measurement of the conductance and
capacitance - Test method
IEC 61868 -  Mineral insulating oils - Determination of EN 61868 -
kinematic viscosity at very low
temperatures
IEC 62021-1 -  Insulating liquids - Determination of EN 62021-1 -
acidity -- Part 1: Automatic potentiometric
titration
IEC 62021-2 -  Insulating liquids - Determination of EN 62021-2 -
acidity -- Part 2: Colourimetric titration
IEC 62535 -  Insulating liquids - Test method for EN 62535 -
detection of potentially corrosive sulphur
in used and unused insulating oil
IEC 62697-1 -  Test method for quantitative EN 62697-1 -
determination of corrosive sulfur
compounds in unused and used insulating
liquids -- Part 1: Test method for
quantitative determination of
dibenzyldisulfide (DBDS)
ISO 2719 -  Petroleum products and lubricants - - -
Determination of Flash Point Pensky-
Martens closed cup method
ISO 3016 -  Petroleum products_- Determination of - -
pour point
ISO 3104 -  Petroleum products - Transparent and EN ISO 3104 -
opaque liquids - Determination of
kinematic viscosity and calculation of
dynamic viscosity
+AC -
ISO 3675 -  Crude petroleum and liquid petroleum EN ISO 3675 -
products_- Laboratory determination of
density_- Hydrometer method
ISO 12185 -  Crude petroleum and petroleum EN ISO 12185 -
products_- Determination of density_-
Oscillating U-tube method
ISO 14596 -  EN ISO 14596 -
ASTM D971 -  Standard Test Method for Interfacial - -
Tension of Oil Against Water by the Ring
Method
DIN 51353 -  Testing of insulating oils; detection of - -
corrosive sulfur; silver strip test
EN 14210 -  Surface active agents - Determination of - -
interfacial tension of solutions of surface
active agents by the stirrup or ring method
IP 346 -  Determination of polycyclic aromatics in - -
lubricant base oils and asphaltene free
petroleum fractions - Dimethylsulfoxide
refractive method
IP 373 -  Determination of the sulphur content of - -
light and middle distillates - Oxidative
microcoulometry
IEC 62701 ®
Edition 1.0 2014-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fluids for electrotechnical applications – Recycled mineral insulating oils for

transformers and switchgear
Fluides pour applications électrotechniques – Huiles minérales isolantes

recyclées pour transformateurs et appareillages de connexion

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 29.040 ISBN 978-2-8322-1121-2

– 2 – IEC 62701:2014  IEC 2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Properties of oil – Refining and stability . 9
5 Classification, identification, general delivery requirements . 9
5.1 Classification . 9
5.2 Requirements . 9
5.3 Miscibility . 9
5.4 Identification and general delivery requirements . 9
6 Properties, their significance and test methods . 9
6.1 Water content . 9
6.2 Acidity . 10
6.3 Antioxidant additives . 10
6.4 Gassing tendency . 10
6.5 Polycyclic aromatics content (PCAs) . 10
6.6 Polychlorinated biphenyl content (PCBs) . 10
6.7 2-Furfural (2-FAL) and related compounds content . 11
6.8 Particle content . 11
6.9 DBDS content. 11
6.10 Stray gassing of oil . 11
Bibliography . 14

Table 1 – General specifications . 12

IEC 62701:2014  IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLUIDS FOR ELECTROTECHNICAL APPLICATIONS –
RECYCLED MINERAL INSULATING OILS
FOR TRANSFORMERS AND SWITCHGEAR

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
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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
...