Rotating electrical machines - Part 5: Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification (IEC 60034-5:2020)

This part of IEC 60034 applies to the classification of degrees of protection provided by
enclosures for rotating electrical machines. It defines the requirements for protective enclosures
that are in all other respects suitable for their intended use and which, from the point of view of
materials and workmanship, ensure that the properties dealt with in this document are
maintained under normal conditions of use.
This document does not specify degrees of protection against mechanical damage of the
machine, or conditions such as moisture (produced for example by condensation), corrosive
dust and vapour, fungus or vermin.
This document is also applicable to explosion proof machines, but it does not specifiy the types
of protection for use in a potentially explosive (dust, gas) environment. Those are defined in the
IEC 60079 series of standards.
In certain applications (such as agricultural or domestic appliances), more extensive
precautions against accidental or deliberate contact may be specified.
This document gives definitions for standard degrees of protection provided by enclosures
applicable to rotating electrical machines as regards the:
a) protection of persons against contacts with or approach to live parts and against contact
with moving parts (other than smooth rotating shafts and the like) inside the enclosure and
protection of the machine against ingress of solid foreign objects;
b) protection of machines against the harmful effects due to ingress of water;
c) protection of machines against the harmful effects due to ingress of dust.
It gives designations for these protective degrees and tests to be performed to check that the
machines meet the requirements of this document.

Drehende elektrische Maschinen - Teil 5: Schutzarten aufgrund der Gesamtkonstruktion von drehenden elektrischen Maschinen (IP-Code) - Einteilung (IEC 60034-5:2020)

Machines électriques tournantes - Partie 5: Degrés de protection procurés par la conception intégrale des machines électriques tournantes (code IP) - Classification (IEC 60034-5:2020)

IEC 60034-5:2020 est disponible sous forme de IEC 60034-5:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.

Električni rotacijski stroji - 5. del: Stopnja zaščite, ki jo zagotavlja celovita zasnova električnih rotacijskih strojev (koda IP) - Razvrščanje (IEC 60034-5:2020)

General Information

Status
Published
Public Enquiry End Date
24-Sep-2019
Publication Date
06-Sep-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
03-Jul-2020
Due Date
07-Sep-2020
Completion Date
07-Sep-2020

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SLOVENSKI STANDARD
SIST EN IEC 60034-5:2020
01-oktober-2020
Nadomešča:
SIST EN 60034-5:2002
SIST EN 60034-5:2002/A1:2007
Električni rotacijski stroji - 5. del: Stopnja zaščite, ki jo zagotavlja celovita zasnova
električnih rotacijskih strojev (koda IP) - Razvrščanje (IEC 60034-5:2020)
Rotating electrical machines - Part 5: Degrees of protection provided by the integral
design of rotating electrical machines (IP code) - Classification (IEC 60034-5:2020)
Drehende elektrische Maschinen - Teil 5: Schutzarten aufgrund der Gesamtkonstruktion
von drehenden elektrischen Maschinen (IP-Code) - Einteilung (IEC 60034-5:2020)
Machines électriques tournantes - Partie 5: Degrés de protection procurés par la
conception intégrale des machines électriques tournantes (code IP) - Classification (IEC
60034-5:2020)
Ta slovenski standard je istoveten z: EN IEC 60034-5:2020
ICS:
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
SIST EN IEC 60034-5:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60034-5:2020

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SIST EN IEC 60034-5:2020


EUROPEAN STANDARD EN IEC 60034-5

NORME EUROPÉENNE

EUROPÄISCHE NORM
June 2020
ICS 29.160.01 Supersedes EN 60034-5:2001 and all of its amendments
and corrigenda (if any)
English Version
Rotating electrical machines - Part 5: Degrees of protection
provided by the integral design of rotating electrical machines (IP
code) - Classification
(IEC 60034-5:2020)
Machines électriques tournantes - Partie 5: Degrés de Drehende elektrische Maschinen - Teil 5: Schutzarten
protection procurés par la conception intégrale des aufgrund der Gesamtkonstruktion von drehenden
machines électriques tournantes (code IP) - Classification elektrischen Maschinen (IP-Code) - Einteilung
(IEC 60034-5:2020) (IEC 60034-5:2020)
This European Standard was approved by CENELEC on 2020-06-03. 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60034-5:2020 E

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SIST EN IEC 60034-5:2020
EN IEC 60034-5:2020 (E)
European foreword
The text of document 2/1960/CDV, future edition 5 of IEC 60034-5, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 60034-5:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-03-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-06-03
document have to be withdrawn

This document supersedes EN 60034-5:2001 and all of its amendments and corrigenda (if any).
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 60034-5:2020 was approved by CENELEC as a European
Standard without any modification.


2

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SIST EN IEC 60034-5:2020
EN IEC 60034-5:2020 (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 60034-6 -  Rotating electrical machines - Part 6: EN 60034-6 -
Methods of cooling (IC Code)

3

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SIST EN IEC 60034-5:2020



IEC 60034-5

®


Edition 5.0 2020-04




INTERNATIONAL



STANDARD



















Rotating electrical machines –

Part 5: Degrees of protection provided by the integral design of rotating

electrical machines (IP code) – Classification


























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 29.160.01 ISBN 978-2-8322-8025-6




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


® Registered trademark of the International Electrotechnical Commission

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SIST EN IEC 60034-5:2020
– 2 – IEC 60034-5:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Designation . 7
4.1 General . 7
4.2 Single characteristic numeral . 7
4.3 Supplementary letters . 7
4.4 Example of designation . 7
5 Degrees of protection – First characteristic numeral . 7
5.1 Indication of degree of protection . 7
5.2 Compliance to indicated degree of protection . 8
5.3 External fans. 8
5.4 Drain holes . 8
6 Degrees of protection – Second characteristic numeral . 9
6.1 Indication of the degree of protection . 9
6.2 Compliance with lower degrees of protection . 10
7 Marking . 10
8 General requirements for tests . 11
8.1 General . 11
8.2 Adequate clearance . 11
8.2.1 General . 11
8.2.2 Low-voltage machines (rated voltages not exceeding 1 000 V a.c. and
1 500 V d.c.) . 11
8.2.3 High-voltage machines (rated voltages exceeding 1 000 V a.c. and
1 500 V d.c.) . 11
9 Tests for first characteristic numeral . 11
10 Tests for second characteristic numeral . 15
10.1 Test conditions . 15
10.2 Acceptance conditions . 23
10.2.1 General . 23
10.2.2 Ingress of water . 24
10.2.3 Withstand voltage test . 24
11 Requirements and tests for open weather-protected machines . 24

Figure 1 – Standard test finger . 14
Figure 2 – Equipment to prove protection against dust . 15
Figure 3 – Equipment to prove protection against dripping water . 18
Figure 4 – Equipment to prove protection against spraying and splashing water (shown
with spraying holes in the case of second characteristic numeral 3) . 19
Figure 5 – Hand-held equipment to prove protection against spraying and splashing
water . 20
Figure 6 – Standard nozzle for hose test . 20
Figure 7 – Geometry of fan jet nozzle . 21
Figure 8 – Measurement of the impact force . 22

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SIST EN IEC 60034-5:2020
IEC 60034-5:2020 © IEC 2020 – 3 –
Figure 9 – Test set-up for determining the protection against high-pressure/steam-jet
cleaning – degree of protection against ingress of water IP X9 for small enclosures . 23

Table 1 – Test requirements for guards . 8
Table 2 – Degrees of protection indicated by the first characteristic numeral . 9
Table 3 – Degrees of protection indicated by the second characteristic numeral . 10
Table 4 – Test and acceptance conditions for first characteristic numeral . 12
Table 5 – Test conditions for second characteristic numeral . 16

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SIST EN IEC 60034-5:2020
– 4 – IEC 60034-5:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ROTATING ELECTRICAL MACHINES –

Part 5: Degrees of protection provided by the integral design
of rotating electrical machines (IP code) – Classification

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.
International Standard IEC 60034-5 has been prepared by IEC technical committee 2: Rotating
machinery.
This fifth edition cancels and replaces the fourth edition, published in 2000, and its
Amendment 1:2006. This edition constitutes a technical revision.
The main technical changes with respect to the previous edition are:
• the inclusion of an additional second numeral 9 including its test method,
• an additional note for clarification in Table 3,
• a clarification on the term open drain hole,
• a clarification on the ingress of dust in Table 4,
• pressure values given now in Pa only,
• a clarification in the scope on the applicability of this standard for (Ex) motors,
• a new Clause 3 with definitions,

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SIST EN IEC 60034-5:2020
IEC 60034-5:2020 © IEC 2020 – 5 –
The text of this International Standard is based on the following documents:
CDV Report on voting
2/1960/CDV 2/1972A/RVC

Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60034 series, published under the general title Rotating electrical
machines, 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.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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SIST EN IEC 60034-5:2020
– 6 – IEC 60034-5:2020 © IEC 2020
ROTATING ELECTRICAL MACHINES –

Part 5: Degrees of protection provided by the integral design
of rotating electrical machines (IP code) – Classification



1 Scope
This part of IEC 60034 applies to the classification of degrees of protection provided by
enclosures for rotating electrical machines. It defines the requirements for protective enclosures
that are in all other respects suitable for their intended use and which, from the point of view of
materials and workmanship, ensure that the properties dealt with in this document are
maintained under normal conditions of use.
This document does not specify degrees of protection against mechanical damage of the
machine, or conditions such as moisture (produced for example by condensation), corrosive
dust and vapour, fungus or vermin.
This document is also applicable to explosion proof machines, but it does not specifiy the types
of protection for use in a potentially explosive (dust, gas) environment. Those are defined in the
IEC 60079 series of standards.
In certain applications (such as agricultural or domestic appliances), more extensive
precautions against accidental or deliberate contact may be specified.
This document gives definitions for standard degrees of protection provided by enclosures
applicable to rotating electrical machines as regards the:
a) protection of persons against contacts with or approach to live parts and against contact
with moving parts (other than smooth rotating shafts and the like) inside the enclosure and
protection of the machine against ingress of solid foreign objects;
b) protection of machines against the harmful effects due to ingress of water;
c) protection of machines against the harmful effects due to ingress of dust.
It gives designations for these protective degrees and tests to be performed to check that the
machines meet the requirements of this document.
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 60034-6, Rotating electrical machines – Part 6: Methods of cooling (IC code)
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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

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SIST EN IEC 60034-5:2020
IEC 60034-5:2020 © IEC 2020 – 7 –
3.1
closed machine
machine where no medium from the surrounding medium, for the purpose of cooling, passes
through the machine
[SOURCE: IEC 60050-411:1996, 411-44-17]
3.2
open machine
machine with an open cooling circuit in which the coolant is drawn directly from the surrounding
medium passing through the machine and then returning directly to the surrounding medium
[SOURCE: IEC 60050-411:1996, 411-44-16]
4 Designation
4.1 General
The designation used for the degree of protection consists of the letters IP followed by two
characteristic numerals signifying conformity with the conditions indicated in the tables of
Clauses 5 and 6 respectively.
4.2 Single characteristic numeral
When it is required to indicate a degree of protection by only one characteristic numeral, the
omitted numeral shall be replaced by the letter X, for example IPX5 or IP2X.
4.3 Supplementary letters
4.3.1 Additional information may be indicated by a supplementary letter following the second
characteristic numeral. If more than one letter is used, the alphabetic sequence shall apply.
4.3.2 In special applications (such as machines with open circuit cooling for ship deck
installation with air inlet and outlet openings closed during standstill), numerals may be followed
by a letter indicating whether the protection against harmful effects due to ingress of water was
verified or tested for the machine not running (letter S) or the machine running (letter M). In this
case, the degree of protection in either state of the machine shall be indicated, for example
IP55S/IP20M.
The absence of the letters S and M shall imply that the intended degree of protection will be
provided under all normal conditions of use.
4.3.3 For air-cooled open machines suitable for specific weather conditions and provided
with additional protective features or processes (as specified in Clause 11), the letter W may
be used.
4.4 Example of designation
 IP 4 4
Characteristic letters
First characteristic numeral (see Table 2)
Second characteristic numeral (see Table 3)
5 Degrees of protection – First characteristic numeral
5.1 Indication of degree of protection
The first characteristic numeral indicates the degree of protection provided by the enclosure to
persons and to the parts of the machine inside the enclosure.
Table 2 gives, in the third column, brief details of objects which will be ‘excluded’ from the
enclosure for each of the degrees of protection represented by the first characteristic numeral.
The term ‘excluded’ implies that a part of the body, a tool or a wire held by a person, either will
not enter the machine or, if it enters, that adequate clearance will be maintained between it and

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SIST EN IEC 60034-5:2020
– 8 – IEC 60034-5:2020 © IEC 2020
the live parts or dangerous moving parts (smooth rotating shafts and the like are not considered
dangerous).
The third column of Table 2 also indicates the minimum size of solid foreign objects which will
be excluded.
5.2 Compliance to indicated degree of protection
Compliance of an enclosure with an indicated degree of protection implies that the enclosure
will also comply with all lower degrees of protection in Table 2. In consequence, the tests
establishing these lower degrees of protection are not required, except in case of doubt.
5.3 External fans
The blades and spokes of fans external to the enclosure shall be protected against contact by
means of guards complying with Table 1.
Table 1 – Test requirements for guards
Protection of machine Test
IP1X 50 mm sphere test
IP2X to IP6X Finger test

For the test, the rotor shall be slowly rotated, for example by hand when possible.
Smooth rotating shafts and similar parts are not considered dangerous.
5.4 Drain holes
If the machine is provided with drain holes, the following shall apply:
• drain holes intended normally to be open on site shall be kept open during testing;
• drain holes are considered as open as long as no breather(s) or plug(s), etc., are mounted
in a drain;
• if machines with protection IP3X or IP4X are intended to be run with open drain holes, the
drain holes may comply with protection IP2X;
• if machines with protection IP5X are intended to be run with open drain holes, the drain
holes shall comply with protection IP4X.

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SIST EN IEC 60034-5:2020
IEC 60034-5:2020 © IEC 2020 – 9 –
Table 2 – Degrees of protection indicated by the first characteristic numeral
Degree of protection
First
Test
characteristic
Brief description
conditions
Definition
numeral
(NOTE 1)
0 Non-protected machine No special protection No test
1 Machine protected against solid Accidental or inadvertent contact with or Table 4
(NOTE 2) objects greater than 50 mm approach to live and moving parts inside the
enclosure by a large surface of the human body,
such as a hand (but no protection against
deliberate access)
Ingress of solid objects exceeding 50 mm in
diameter
2 Machine protected against solid Contact with or approach to live or moving parts
(NOTE 2) objects greater than 12 mm inside the enclosure by fingers or similar objects
not exceeding 80 mm in length
Ingress of solid objects exceeding 12 mm in
diameter
3 Machine protected against solid Contact with or approach to live or moving parts
(NOTE 2) objects greater than 2,5 mm inside the enclosure by tools or wires exceeding
2,5 mm in diameter
Ingress of solid objects exceeding 2,5 mm in
diameter
4 Machine protected against solid Contact with or approach to live or moving parts
(NOTE 2) objects greater than 1 mm inside the enclosure by wires or strips of
thickness greater than 1 mm
Ingress of solid objects exceeding 1 mm in
diameter
5 Dust-protected machine Contact with or approach to live or moving parts
(NOTE 3) inside the enclosure
Ingress of dust is not totally prevented but dust
does not enter in sufficient quantity to interfere
with satisfactory operation of the machine
6 Dust-tight machines Ingress of dust totally prevented
NOTE 1 The brief description given in the second column of this table cannot be used to specify the type of
protection.
NOTE 2 Machines assigned a first characteristic numeral 1, 2, 3 or 4 will exclude both regularly or irregularly
shaped solid objects, provided that three normally perpendicular dimensions of the object exceed the appropriate
figure in the ‘Definition’ column.
NOTE 3 The degree of protection against dust defined by this document is a general one. When the nature of the
dust (dimensions of particles, their nature, for instance fibrous particles) is specified, test conditions can be
determined by agreement between manufacturer and user.

6 Degrees of protection – Second characteristic numeral
6.1 Indication of the degree of protection
The second characteristic numeral indicates the degree of protection provided by the enclosure
with respect to harmful effects due to ingress of water.
Table 3 gives, in the third column, details of the type of protection provided by the enclosure
for each of the degrees of protection represented by the second characteristic numeral.
An air-cooled open machine is weather-protected when its design reduces the ingress of rain,
snow and airborne particles, under specified conditions, to an amount consistent with correct
operation.
This degree of protection is designated by the letter W placed after the second characteristic
numeral.

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– 10 – IEC 60034-5:2020 © IEC 2020
6.2 Compliance with lower degrees of protection
For second characteristic numerals up to and including 6, compliance of an enclosure with an
indicated degree of protection implies that the enclosure will also comply with all lower degrees
of protection in Table 3.
In consequence, the tests establishing these lower degrees of protection are not required,
except in case of doubt.
For IPX7, IPX8 and IPX9, it shall not be assumed that compliance of the enclosure implies that
the enclosure will also comply with all lower degrees of protection in Table 3.
Table 3 – Degrees of protection indicated by the second characteristic numeral
Degree of protection
Second
Test
characteristic
Brief description
conditions
Definition
numeral
(NOTE 1)
0 Non-protected machine No special protection No test
1 Machine protected against Dripping water (vertically falling drops) shall have no Table 5
dripping water harmful effect
2 Machine protected against Vertically dripping water shall have no harmful effect
dripping water when tilted when the machine is tilted at any angle up to 15°
up to 15° from its normal position
3 Machine protected against Water falling as a spray at an angle up to 60° from
spraying water the vertical shall have no harmful effect
4
...

SLOVENSKI STANDARD
oSIST prEN IEC 60034-5:2019
01-september-2019
Električni rotacijski stroji - 5. del: Stopnja zaščite, ki jo zagotavlja celovita zasnova
rotacijskih električnih strojev (koda IP) - Razvrščanje
Rotating electrical machines - Part 5: Degrees of protection provided by the integral
design of rotating electrical machines (IP code) - Classification
Drehende elektrische Maschinen - Teil 5: Schutzarten aufgrund der Gesamtkonstruktion
von drehenden elektrischen Maschinen (IP-Code) - Einteilung
Machines électriques tournantes - Partie 5: Degrés de protection procurés par la
conception intégrale des machines électriques tournantes (code IP) - Classification
Ta slovenski standard je istoveten z: prEN IEC 60034-5:2019
ICS:
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
oSIST prEN IEC 60034-5:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60034-5:2019

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oSIST prEN IEC 60034-5:2019
2/1960/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60034-5 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2019-07-05 2019-09-27
SUPERSEDES DOCUMENTS:
2/1935/CD, 2/1951A/CC

IEC TC 2 : ROTATING MACHINERY
SECRETARIAT: SECRETARY:
United Kingdom Mr Charles Whitlock
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:


Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

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TITLE:
Rotating electrical machines – Part 5: Degrees of protection provided by the integral design of rotating
electrical machines (IP code) – Classification

PROPOSED STABILITY DATE: 2022

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2WG12(Sec)248
CONTENTS
FOREWORD . 3

1 Scope and object . 5
2 Normative references. 5
3 Designation . 6
3.1 Single characteristic numeral . 6
3.2 Supplementary letters . 6
3.3 Example of designation . 6
4 Degrees of protection – First characteristic numeral . 7
4.1 Indication of degree of protection . 7
4.2 Compliance to indicated degree of protection . 7
4.3 External fans . 7
4.4 Drain holes . 7
5 Degrees of protection – Second characteristic numeral . 9
6 Marking . 11
7 General requirements for tests . 11
7.1 Adequate clearance . 11
8 Tests for first characteristic numeral . 12
9 Tests for second characteristic numeral . 14
9.1 Test conditions . 14
9.2 Acceptance conditions . 16
10 Requirements and tests for open weather-protected machines . 17

Figure 1 – Standard test finger . 18
Figure 2 – Equipment to prove protection against dust . 19
Figure 3 – Equipment to prove protection against dripping water . 20
Figure 4 – Equipment to prove protection against spraying and splashing water . 21
Figure 5 – Hand-held equipment to prove protection against spraying and splashing water . 41
Figure 6 – Standard nozzle for hose test . 41

Table 1 – Test requirements for guards . 7
Table 2 – Degrees of protection indicated by the first characteristic numeral . 8
Table 3 – Degrees of protection indicated by the second characteristic numeral . 10
Table 4 – Test and acceptance conditions for first characteristic numeral . 12
Table 5 – Test conditions for second characteristic numeral . 14
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1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
3
4 ROTATING ELECTRICAL MACHINES –
5
6 Part 5: Degrees of protection provided by the integral design
7 of rotating electrical machines (IP code) –
8 Classification
9
10
11
12 FOREWORD
13 1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée
14 de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
15 favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
16 l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes internationales,
17 des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
18 Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des comités d'études,
19 aux travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
20 internationales, gouvernementales et non gouvernementales, en liaison avec la CEI, participent également aux
21 travaux. La CEI collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
22 conditions fixées par accord entre les deux organisations.
23 2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
24 du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
25 intéressés sont représentés dans chaque comité d’études.
26 3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
27 comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
28 s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable de
29 l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
30 4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
31 mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
32 nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
33 nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
34 5) La CEI n’a prévu aucune procédure de marquage valant indication d’approbation et n'engage pas sa
35 responsabilité pour les équipements déclarés conformes à une de ses Publications.
36 6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
37 7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
38 mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
39 nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
40 dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
41 de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
42 toute autre Publication de la CEI, ou au crédit qui lui est accordé.
43 8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
44 référencées est obligatoire pour une application correcte de la présente publication.
45 9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de la CEI peuvent faire
46 l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
47 responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
48 International Standard IEC 60034-5 has been prepared by IEC technical committee 2: Rotating
49 machinery.
50 This fifth edition cancels and replaces edition 4.1 published in 2006. This edition constitutes a
51 technical revision. The main changes with respect to the previous edition are
52 - the inclusion of an additional second numeral 9 including its test method,
53 - an additional note for clarification in Table 3,
54 - a clarification on the term open drain hole,
55 - a clarification on the ingress of dust in Table 4,
56 - pressure values given now in Pa only,
57 - a clarification in the scope on the applicability of this standard for (Ex) motors,
58 - a new clause 3 with definitions,
59 - the elimination of the words shall or should in notes.
60

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61 The committee has decided that the contents of the base publication and its amendments will
62 remain unchanged until the maintenance result date indicated on the IEC web site under
63 "http://webstore.iec.ch" in the data related to the specific publication. At this date,
64 the publication will be
65 • reconfirmed,
66 • withdrawn,
67 • replaced by a revised edition, or
68 • amended.
69
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70 ROTATING ELECTRICAL MACHINES –
71
72 Part 5: Degrees of protection provided by the integral design
73 of rotating electrical machines (IP code) –
74 Classification
75
76
77 1 Scope and object
78 This International Standard applies to the classification of degrees of protection provided
79 by enclosures for rotating electrical machines. It defines the requirements for protective
80 enclosures that are in all other respects suitable for their intended use and which, from the
81 point of view of materials and workmanship, ensure that the properties dealt with in this
82 standard are maintained under normal conditions of use.
83 This document does not specify degrees of protection against mechanical damage of the
84 machine, or conditions such as moisture (produced for example by condensation), corrosive
85 dust and vapour, fungus or vermin.
86 This document is also applicable to explosion proof machines, but it does not specifiy the types
87 of protection for use in a potentially explosive (dust, gas) environment. Those are defined in
88 the IEC 60079 series of standards.
89 In certain applications (such as agricultural or domestic appliances), more extensive
90 precautions against accidental or deliberate contact may be specified.
91 This standard gives definitions for standard degrees of protection provided by enclosures
92 applicable to rotating electrical machines as regards the:
93 a) protection of persons against contacts with or approach to live parts and against contact
94 with moving parts (other than smooth rotating shafts and the like) inside the enclosure and
95 protection of the machine against ingress of solid foreign objects;
96 b) protection of machines against the harmful effects due to ingress of water;
97 c) protection of machines against the harmful effects due to ingress of dust.
98 It gives designations for these protective degrees and tests to be performed to check that the
99 machines meet the requirements of this standard.
100 2 Normative references
101 The following referenced documents are indispensable for the application of this document. For
102 dated references, only the edition cited applies. For undated references, the latest edition of
103 the referenced document (including any amendments) applies.
104 IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
105 IEC 60034-6, Rotating electrical machines – Part 6: Methods of cooling (IC code)
106

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107 3 Definitions
108 3.1 Closed machine
109 a machine where no medium from the surrounding medium, for the purpose of cooling, passes
110 through the machine
111 [SOURCE: IEC 60050-411:1996, 411-44-17]
112 3.2 Open machine
113 a machine with an open cooling circuit in which the coolant is drawn directly from the
114 surrounding medium passing through the machine and then returning directly to the
115 surrounding medium
116 [SOURCE: IEC 60050-411:1996, 411-44-16]
117 4 Designation
118 The designation used for the degree of protection consists of the letters IP followed by two
119 characteristic numerals signifying conformity with the conditions indicated in the tables of
120 clauses 4 and 5 respectively.
121 4.1 Single characteristic numeral
122 When it is required to indicate a degree of protection by only one characteristic numeral, the
123 omitted numeral shall be replaced by the letter X, for example IPX5 or IP2X.
124 4.2 Supplementary letters
125 Additional information may be indicated by a supplementary letter following the second
126 characteristic numeral. If more than one letter is used, the alphabetic sequence shall apply.
127 4.2.1 In special applications (such as machines with open circuit cooling for ship deck
128 installation with air inlet and outlet openings closed during standstill), numerals may be
129 followed by a letter indicating whether the protection against harmful effects due to ingress of
130 water was verified or tested for the machine not running (letter S) or the machine running
131 (letter M). In this case, the degree of protection in either state of the machine shall be
132 indicated, for example IP55S/IP20M.
133 The absence of the letters S and M shall imply that the intended degree of protection will be
134 provided under all normal conditions of use.
135 4.2.2 For air-cooled open machines suitable for specific weather conditions and provided with
136 additional protective features or processes (as specified in clause 10), the letter W may be
137 used.
138 4.3 Example of designation
139  IP 4 4
140 Characteristic letters
141 First characteristic numeral (see table 2)
142 Second characteristic numeral (see table 3)
143
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144 5 Degrees of protection – First characteristic numeral
145 5.1 Indication of degree of protection
146 The first characteristic numeral indicates the degree of protection provided by the enclosure to
147 persons and to the parts of the machine inside the enclosure.
148 Table 2 gives, in the third column, brief details of objects which will be ‘excluded’ from the
149 enclosure for each of the degrees of protection represented by the first characteristic numeral.
150 The term ‘excluded’ implies that a part of the body, a tool or a wire held by a person, either will
151 not enter the machine or, if it enters, that adequate clearance will be maintained between it and
152 the live parts or dangerous moving parts (smooth rotating shafts and the like are not
153 considered dangerous).
154 The third column of table 2 also indicates the minimum size of solid foreign objects which will
155 be excluded.
156 5.2 Compliance to indicated degree of protection
157 Compliance of an enclosure with an indicated degree of protection implies that the enclosure
158 will also comply with all lower degrees of protection in table 2. In consequence, the tests
159 establishing these lower degrees of protection are not required, except in case of doubt.
160 5.3 External fans
161 The blades and spokes of fans external to the enclosure shall be protected against contact by
162 means of guards complying with table 1.
163 Table 1 – Test requirements for guards
Protection of machine Test
IP1X 50 mm sphere test
IP2X to IP6X Finger test
164
165 For the test, the rotor shall be slowly rotated, for example by hand when possible.
166 Smooth rotating shafts and similar parts are not considered dangerous.
167 5.4 Drain holes
168 If the machine is provided with drain holes, the following shall apply:
169 – drain holes intended normally to be open on site shall be kept open during testing;
170 – drain holes are considered as open as long as no breather(s) or plug(s) etc. are mounted in
171 a drain;
172 – if machines with protection IP3X or IP4X are intended to be run with open drain holes, the
173 drain holes may comply with protection IP2X;
174 – if machines with protection IP5X are intended to be run with open drain holes, the drain
175 holes shall comply with protection IP4X.
176

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177 Table 2 – Degrees of protection indicated by the first characteristic numeral
Degree of protection
First
Test
characteristic
Brief description Definition
conditions
numeral
(NOTE 1)
0 Non-protected No special protection No test
machine
1 Machine protected Accidental or inadvertent contact with or approach to live Table 4
against solid objects and moving parts inside the enclosure by a large surface
(NOTE 2)
greater than 50 mm of the human body, such as a hand (but no protection
against deliberate access)
Ingress of solid objects exceeding 50 mm in diameter
2 Machine protected Contact with or approach to live or moving parts inside
(NOTE 2) against solid objects the enclosure by fingers or similar objects not exceeding
greater than 12 mm 80 mm in length
Ingress of solid objects exceeding 12 mm in diameter
Machine protected Contact with or approach to live or moving parts inside
3
(NOTE 2) against solid objects the enclosure by tools or wires exceeding 2,5 mm in
greater than 2,5 mm diameter
Ingress of solid objects exceeding 2,5 mm in diameter
4 Machine protected Contact with or approach to live or moving parts inside
(NOTE 2) against solid objects the enclosure by wires or strips of thickness greater
greater than 1 mm than 1 mm
Ingress of solid objects exceeding 1 mm in diameter
5 Dust-protected Contact with or approach to live or moving parts inside
machine the enclosure
(NOTE 3)
Ingress of dust is not totally prevented but dust does not
enter in sufficient quantity to interfere with satisfactory
operation of the machine
6 Dust-tight machines Ingress of dust totally prevented
NOTE 1 The brief description given in the second column of this table cannot be used to specify the type of
protection.
NOTE 2 Machines assigned a first characteristic numeral 1, 2, 3 or 4 will exclude both regularly or irregularly
shaped solid objects, provided that three normally perpendicular dimensions of the object exceed the appropriate
figure in the ‘Definition’ column.
NOTE 3 The degree of protection against dust defined by this standard is a general one. When the nature of the
dust (dimensions of particles, their nature, for instance fibrous particles) is specified, test conditions can be
determined by agreement between manufacturer and user.
178
179
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180 6 Degrees of protection – Second characteristic numeral
181 6.1 The second characteristic numeral indicates the degree of protection provided by the
182 enclosure with respect to harmful effects due to ingress of water.
183 Table 3 gives, in the third column, details of the type of protection provided by the enclosure for
184 each of the degrees of protection represented by the second characteristic numeral.
185 An air-cooled open machine is weather-protected when its design reduces the ingress of rain,
186 snow and airborne particles, under specified conditions, to an amount consistent with correct
187 operation.
188 This degree of protection is designated by the letter W placed after the second characteristic
189 numeral.
190 6.2 For second characteristic numerals up to and including 6, compliance of an enclosure
191 with an indicated degree of protection implies that the enclosure will also comply with all lower
192 degrees of protection in table 3.
193 In consequence, the tests establishing these lower degrees of protection are not required,
194 except in case of doubt.
195 For IPX7, IPX8 and IPX9, it shall not be assumed that compliance of the enclosure implies that
196 the enclosure will also comply with all lower degrees of protection in table 3.
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198
199 Table 3 – Degrees of protection indicated by the second characteristic numeral
Degree of protection
Second
Test
characteristic
Brief description Definition
conditions
numeral
(NOTE 1)
0 Non-protected machine No special protection No test
1 Machine protected against Dripping water (vertically falling drops) shall have Table 5
dripping water no harmful effect
2 Machine protected against Vertically dripping water shall have no harmful
dripping water when tilted up to 15° effect when the machine is tilted at any angle up to
15° from its normal position
3 Machine protected against Water falling as a spray at an angle up to 60° from
spraying water the vertical shall have no harmful effect
4 Machine protected against Water splashing against the machine from any
splashing water direction shall have no harmful effect
5 Machine protected against Water projected by a nozzle against the machine
water jets from any direction shall have no harmful effect
(NOTE 3)
6 Machine protected against Water from heavy seas or water projected in
heavy seas powerful jets shall not enter the machine in
harmful quantities
7 Machine protected against the Ingress of water in the machine in a harmful
effects of immersion quantity shall not be possible when the machine is
immersed in water under stated conditions of
pressure and time
8 Machine protected against the The machine is suitable for continuous submersion
effects of continuous submersion in water under conditions which shall be specified
by the manufacturer (NOTE 2)
9 Machine protected against high Water projected at high pressure and high
pressure and high temperature temperature against the enclosure from any
water jets direction shall have no harmful effects (NOTE 3)
NOTE 1 The brief description given in the second column of this table cannot be used to specify the type of
protection.
NOTE 2 Normally, this means that the machine is hermetically sealed. However, with certain types of machines it can
mean that water can enter but only in such a manner that it produces no harmful effect.
NOTE 3 It is understood that protections as IPx5 or IPx9 are not equivalent to a total endurance to all weather
conditions that can be present for a long period of time. Weather-proof could be achieved by providing additional
protection.
200
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201 7 Marking
202 It is recommended that the characteristic letters and numerals be marked on the machine
203 preferably on the rating plate or, if this is not practicable, on the enclosure.
204 When all parts of a machine do not have the same degree of protection, at least the
205 designation of the lowest degree shall be shown, followed, if necessary, by the higher
206 designation with clear reference to the part to which it applies.
207 NOTE Space limitations on the rating plate usually only allow the lowest IP code to be marked. Parts or
208 components having a higher degree of protection should then be specified in the documentation and/or in the
209 operating instructions.
210 The lower degree of protection of:
211 – guards for external fans (as allowed in 5.3);
212 – drain holes (as allowed in 5.4);
213 need not be specified on the rating plate or in the documentation.
214 Where the mounting of the machine has an influence on the degree of protection, the intended
215 mounting arrangements shall be indicated by the manufacturer on the rating plate or in the
216 instructions for mounting.
217 8 General requirements for tests
218 The tests specified in this standard are type tests. They shall be carried out on standard
219 products or models of them. Where this is not feasible, verification either by an alternative test
220 or by examination of drawings shall be the subject of an agreement between manufacturer
221 and user.
222 Unless otherwise specified, the machine for each test shall be clean with all the parts in place
223 and mounted in the manner stated by the manufacturer.
224 In the case of both first and second characteristic numerals 1, 2, 3 and 4, a visual inspection
225 may, in certain obvious cases, show that the intended degree of protection is obtained. In such
226 cases, no test need be made. However, in case of doubt, tests shall be made as prescribed in
227 clauses 8 and 9.
228 8.1 Adequate clearance
229 For the purpose of the following test clauses in this standard, the term ‘adequate clearance’
230 has the meaning given in 7.1.1 or 7.1.2.
231 8.1.1 Low-voltage machines (rated voltages not exceeding 1 000 V a.c.
232 and 1 500 V d.c.)
233 The test device (sphere, finger, wire, etc.) does not touch the live parts or moving parts other
234 than non-dangerous parts such as smooth rotating shafts.
235 8.1.2 High-voltage machines (rated voltages exceeding 1 000 V a.c. and 1 500 V d.c.)
236 When the test device is placed in the most unfavourable position, the machine shall be capable
237 of withstanding the dielectric test applicable to the machine.
238

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239 This dielectric test requirement may be replaced by a specified clearance dimension in air
240 which would ensure that this test would be satisfactory under the most unfavourable electrical
241 field configuration.
242 9 Tests for first characteristic numeral
243 Test and acceptance conditions for the first characteristic numeral are given in table 4.
244 The dust test for numerals 5 and 6 shall be performed with the shaft stationary, provided that
245 the difference in pressure between running and stationary (caused by fan effects) is lower than
246 2 kPa. If the pressure difference is greater than 2 kPa, the internal machine pressure during
247 the dust test shall be depressed accordingly. Alternatively, the machine may be tested with the
248 shaft rotating at rated speed.
249 Table 4 – Test and acceptance conditions for first characteristic numeral
First
characteristic Test and acceptance condit
...

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