EN 60335-2-88:2002

SLOVENSKI SIST EN 60335-2-88:2003

STANDARD
maj 2003
Gospodinjski in podobni električni aparati - Varnost - 2-88. del: Posebne
zahteve za vlažilnike zraka, namenjene za uporabo v grelnih, prezračevalnih
ali klimatskih sistemih (IEC 60335-2-88:2002)
Household and similar electrical appliances - Safety - Part 2-88: Particular
requirements for humidifiers intended for use with heating, ventilation, or air-
conditioning systems
ICS 13.120; 91.140.30 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 60335-2-88
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2002

ICS 91.140.30 Supersedes EN 60335-2-88:1997

English version
Household and similar electrical appliances -
Safety
Part 2-88: Particular requirements for humidifiers
intended for use with heating, ventilation,
or air-conditioning systems
(IEC 60335-2-88:2002)
Appareils électrodomestiques et Sicherheit elektrischer Geräte für den
analogues - Sécurité Hausgebrauch und ähnliche Zwecke
Partie 2-88: Règles particulières Teil 2-88: Besondere Anforderungen
pour les humidificateurs destinés für elektrische Luftbefeuchter,
à être utilisés avec des appareils die zur Verwendung mit Heiz-, Lüftungs-
de chauffage, de ventilation oder Klimaanlagen bestimmt sind
ou de conditionnement d'air (IEC 60335-2-88:2002)
(CEI 60335-2-88:2002)
This European Standard was approved by CENELEC on 2002-12-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

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

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

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

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

Ref. No. EN 60335-2-88:2002 E
Foreword
The text of document 61D/117/FDIS, future second edition of IEC 60335-2-88, prepared by SC 61D of
IEC Technical Committee 61, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60335-2-88 on 2002-12-01.
This European Standard replaces EN 60335-2-88:1997.
The following dates are applicable:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-09-01
- date on which national standards
conflicting with the EN have to be withdrawn (dow) 2005-12-01
This part 2 has to be used in conjunction with EN 60335-1, Household and similar electrical appliances –
Safety – Part 1: General requirements. It was established on the basis of the 2002 edition of that standard.
Amendments and revisions of Part 1 have also to be taken into account and the dates when such
changes become applicable will be stated in the relevant amendment or revision of Part 1.
This part 2 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the
European Standard: Safety requirements for electric humidifiers intended for use with heating, ventilation,
or air-conditioning systems.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies as far as is
reasonable. When this standard states "addition", "modification" or "replacement", the relevant text of
Part 1 is to be adapted accordingly.
NOTE 1 The following numbering system is used:
- subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
- unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a
replaced clause or subclause;
- additional annexes are lettered AA, BB, etc.;
- subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z.
NOTE 2 The following print types are used:
- requirements: in roman type;
- test specifications: in italic type;
- notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the associated noun
are also in bold.
There are no special national conditions causing a deviation from this European Standard, other than
those listed in Annex ZA to EN 60335-1.
There are no national deviations from this European Standard, other than those listed in Annex ZB to
EN 60335-1.
Annexes AA and BB are normative and form an integral part of this standard.
p NOTE  In this document, p is used in the margin to indicate instructions for preparing the printed version.
_____________
- 3 - EN 60335-2-88:2002
Introduction
p Add:
An investigation by CENELEC TC 61 has shown that all risks from products within the scope of this
standard are fully covered by the Low Voltage Directive, 73/23/EEC. For products having mechanical
moving parts, a risk assessment in accordance with the Machinery Directive, 98/37/EC, has shown that
the risks are mainly of electrical origin and consequently this directive is not applicable. However, the
relevant essential safety requirements of the Machinery Directive are covered by this standard together
with the principal objectives of the Low Voltage Directive.
____________
Endorsement notice
The text of the International Standard IEC 60335-2-88:2002 was approved by CENELEC as a European
Standard without any modification.
____________
p Add:
Annex ZC
(normative)
Normative references to international publications
with their corresponding European publications
Addition:
Publication Year Title EN/HD Year
IEC 60068-2-52 1996 Environmental testing – EN 60068-2-52 1996
Part 2: Tests – Test Kb: Salt mist, cyclic
(sodium chloride solution)
____________
INTERNATIONAL IEC
STANDARD
60335-2-88
Second edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-88:
Particular requirements for humidifiers intended
for use with heating, ventilation, or air-
conditioning systems
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-88:
Règles particulières pour les humidificateurs destinés
à être utilisés avec des appareils de chauffage,
de ventilation ou de conditionnement d'air
 IEC 2002  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
R
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60335-2-88  IEC:2002(E)
CONTENTS
FOREWORD . 4
INTRODUCTION .6
1 Scope . 7
2 Normative references. 7
3 Definitions . 8
4 General requirement . 8
5 General conditions for the tests . 8
6 Classification . 8
7 Marking and instructions . 8
8 Protection against access to live parts . 9
9 Starting of motor-operated appliances . 9
10 Power input and current.10
11 Heating.10
12 Void .10
13 Leakage current and electric strength at operating temperature .10
14 Transient overvoltages.10
15 Moisture resistance.10
16 Leakage current and electric strength .11
17 Overload protection of transformers and associated circuits.11
18 Endurance .11
19 Abnormal operation.11
20 Stability and mechanical hazards.11
21 Mechanical strength.11
22 Construction .12
23 Internal wiring.13
24 Components .13
25 Supply connection and external flexible cords.13
26 Terminals for external conductors .13
27 Provision for earthing.14
28 Screws and connections .14
29 Clearances, creepage distances and solid insulation .14
30 Resistance to heat and fire .14
31 Resistance to rusting .14
32 Radiation, toxicity and similar hazards .14
Annexes.15
Annex AA (normative) Gaskets.15
Annex BB (normative) Test for liquid-containers.17
Bibliography.18

60335-2-88  IEC:2002(E) – 3 –
Table AA.1 – Physical properties of gasket materials .15
Table AA.2 – Accelerated aging conditions .16
Table BB.1 – Oven conditioning temperatures.17

– 4 – 60335-2-88  IEC:2002(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-88: Particular requirements for humidifiers intended for use
with heating, ventilation, or air-conditioning systems
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the
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