EN 61242:1997
(Main)Electrical accessories - Cable reels for household and similar purposes
Electrical accessories - Cable reels for household and similar purposes
Applies to cable reels for a.c. only, provided with a non-detachable flexible cable with a rated voltage above 50V and not exceeding 250 V for single-phase cable reels and above 50 V and not exceeding 440 V for all other cable reels, and a rated current not exceeding 16 A.
Elektrisches Installationsmaterial - Leitungsroller für den Hausgebrauch und ähnliche Zwecke
Petit appareillage électrique - Cordons prolongateurs enroulés sur tambour pour usages domestiques et analogues
S'applique aux cordons prolongateurs enroulés sur tambour (enrouleurs dans la suite du texte) pour courant alternatif seulement, munis d'un câble souple non détachable, de tension assignée supérieure à 50 V et ne dépassant pas 250 V pour les enrouleurs monophasés, et supérieure à 50 V et ne dépassant pas 440 V pour tous les autres enrouleurs de courant assigné ne dépassant pas 16 A.
Electrical accesories - Cable reels for household and similar purposes (IEC 1242:1995, modified)
Ta mednarodni standard velja za kabelske kolute samo za izmenični tok, opremljene z neločljivim gibljivim kablom z nazivno napetostjo nad 50 V in ne večjo od 250 V za enofazne kabelske kolute in nad 50 V in ne več kot 440 V za vse druge kabelske kolute ter naznačenim tokom, ki ne presega 16 A. Namenjene so za gospodinjske, komercialne in lahke industrijske ter podobne namene bodisi v zaprtih prostorih bodisi na prostem s posebnim poudarkom na varnosti pri običajni uporabi.
V obravnavi so naprave za navijanje kablov, ki so vgrajene v aparate. Kabelski koluti, ki so skladni s tem standardom, so primerni za uporabo pri temperaturah okolice, ki običajno ne presegajo 25 °C, vendar občasno dosežejo 35 °C. Na območjih, kjer prevladujejo posebne razmere, je lahko zahtevana posebna konstrukcija.
OPOMBA - Ta standard ne velja za kabelske kolute s snemljivim gibljivim kablom.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-1997
Electrical accesories - Cable reels for household and similar purposes (IEC
1242:1995, modified)
Electrical accessories - Cable reels for household and similar purposes
Elektrisches Installationsmaterial - Leitungsroller für den Hausgebrauch und ähnliche
Zwecke
Petit appareillage électrique - Cordons prolongateurs enroulés sur tambour pour usages
domestiques
Ta slovenski standard je istoveten z: EN 61242:1997
ICS:
29.120.99 'UXJDHOHNWULþQDGRGDWQD Other electrical accessories
RSUHPD
55.060 Tulci. Vretena Spools. Bobbins
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEI
NORME
IEC
INTERNATIONALE
INTERNATIONAL
Première édition
STANDARD First edition
1995-02
Petit appareillage électrique -
Cordons prolongateurs enroulés sur
tambour pour usages domestiques
Electrical accessories -
Cable reels for household and
similar purposes
Droits de reproduction réservés — Copyright — all rights reserved
© CEI 1995
of this publication may be reproduced or utilized in
Aucune partie de cette publication ne peut être reproduite ni No part
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
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1242©IEC:1995 - 3 -
CONTENTS
Page
FOREWORD 5
Clause
1 Scope 7
2 Normative references 7
3 Definitions 9
4 General requirements .
5 General conditions for type testing
6 Classification
7 Marking
19 8 Protection against electric shock
9 Provision for earthing
10 Terminals and terminations
11 Flexible cables and their connection
12 Construction 39
13 Components
14 Resistance to ageing
15 Resistance to harmful ingress of water
16 Resistance to humidity
17 Insulation resistance and electric strength
18 Normal operation
19 Temperature rise in normal use
59 20 Temperature rise under overload condition
21 Mechanical strength
22 Resistance to heat
23 Screws, current-carrying pa rts and connections
24 Creepage distances, clearances and distances
through sealing compound
25 Resistance of insulating material to abnormal heat,
to fire and to tracking 79
26 Resistance to rusting
Figures
Annexes
A - Guidance for routine tests of cable reels
B - Bibliography 93
1242 ©IEC:1995 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ELECTRICAL ACCESSORIES -
CABLE REELS FOR HOUSEHOLD AND
SIMILAR PURPOSES
FOREWORD
The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
1)
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation 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.
The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on
2)
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
They have the form of recommendations for international use published in the form of standards, technical
3)
reports or guides and they are accepted by the National Committees in that sense.
4} In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
International Standard IEC 1242 has been prepared by sub-committee 23B: Plugs,
socket-outlets and switches, of IEC technical committee 23: Electrical accessories.
The text of this standard is based on the following documents:
on Voting
DIS Report
23B/432/RVD
23B(CO)192
rt
Full information on the voting for the approval of this standard can be found in the repo
on voting indicated in the above table.
In this standard, the following print types are used:
- Requirements proper: in roman type.
- Test specifications: in italic type.
Explanatory matter: in smaller roman type.
7 -
1242 ©IEC:1995 -
ELECTRICAL ACCESSORIES -
CABLE REELS FOR HOUSEHOLD AND
SIMILAR PURPOSES
1 Scope
This International Standard applies to cable reels for a.c. only, provided with a
non-detachable flexible cable with a rated voltage above 50 V and not exceeding 250 V for
single-phase cable reels and above 50 V and not exceeding 440 V for all other cable
reels, and a rated current not exceeding 16 A. They are intended for household,
commercial and light industrial and similar purposes, either indoors or outdoors, with
particular reference to safety in normal use.
Cable reeling devices incorporated in appliances are under consideration.
Cable reels complying with this standard are suitable for use at ambient temperatures not
normally exceeding 25 °C, but occasionally reaching 35 °C. In locations where special
conditions prevail, special construction may be required.
NOTE - This standard does not apply to cable reels with a detachable flexible cable.
2 Normative references
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this International Standard. At the time of publication, the
editions indicated were valid. All normative documents are subject to revision, and parties
to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated
below. Members of IEC and ISO maintain registers of currently valid International
Standards.
International Electrotechnical Vocabulary (IEV) - Chapter 441:
IEC 50(441): 1984,
Switchgear, controlgear and fuses
Method for determining the comparative and the proof tracking indices of
IEC 112: 1979,
solid insulating materials under moist conditions
Polyvinyl chloride insulated cables of rated voltage up to and including
IEC 227,
450/750 V
Rubber insulated cables of rated voltages up to and including 450/750 V
IEC 245,
IEC 364, Electrical installations of buildings
Graphical symbols for use on equipment. Index, survey and compilation of
IEC 417: 1973,
the single sheets
Degrees of protection provided by enclosures (IP Code)
IEC 529: 1989,
1242 ©IEC:1995 - 9 -
IEC 695-2-1: 1991, Fire hazard testing - Part 2: Test methods - Section 1: Glow-wire test
and guidance
IEC 884-1: 1994, Plugs and socket-outlets for household and similar purposes - Part 1:
General requirements
Connecting devices - Safety requirements for screw-type and screwless-type
IEC 999: 1990,
clamping units for electrical copper conductors
Metallic coatings - Electrodeposited coatings of nickel plus chromium
ISO 1456: 1988,
and of copper plus nickel plus chromium
Metallic coatings - Electroplated coatings of zinc on iron or steel
ISO 2081: 1986,
ISO 2093: 1986, Electroplated coatings of tin - Specification and test methods
3 Definitions
For the purpose of this International Standard, the following definitions apply.
Where the terms voltage and current are used, the imply r.m.s. values, unless otherwise
specified.
Voltage assigned to the cable reel by the manufacturer.
3.1 rated voltage:
3.2 rated current: Current assigned to the cable reel by the manufacturer.
3.3 cable reel: Device comprising a flexible cable attached to a reel, so constructed that
the flexible cable may be wound onto the reel.
NOTE - Plugs and socket-outlets supplied with cable reels are considered as part of the reel.
Cable reel which can be easily moved from one place to another.
3.3.1 po rtable cable reel:
3.3.2 fixed cable reel: Cable reel intended for mounting on a fixed support.
3.4 non-detachable flexible cable: Flexible cable which is fixed to a cable reel.
3.5 rewirable cable reel: Cable reel so constructed that the flexible cable can be
replaced with the aid of a general purpose tool.
Cable reel so constructed that it forms a complete unit
3.6 non-rewirable cable reel:
with the flexible cable, and the plug and the socket-outlets are fixed by the manufacturer
of the cable reel in such a manner that, after dismantling, the cable reel is rendered unfit
for any further use (see also 12.5).
Part which can be touched by means of the standard test finger.
3.7 accessible part:
3.8 detachable pa rt : Part which can be removed without the aid of a general purpose tool.
1242 ©IEC:1995 - 11 -
Shortest path along the surface of an insulating material
3.9 creepage distance:
between two conductive parts.
3.10 clearance: Distance between two conductive parts along a string stetched the
shortest way between these conductive parts. [IEV 441-17-31]
Temperature sensing control device intended to switch-off
3.11 thermal cut-out:
automatically under abnormal operating conditions and which has no provision for
adjustment by the user.
Current sensing device intended to switch off automatically under
3.12 current cut-out:
abnormal operating conditions and which has no provision for adjustment by the user.
Mechanism designed so that disconnection can neither be
3.13 trip-free mechanism:
prevented nor inhibited by a reset mechanism, and so that the contacts can neither be
prevented from opening nor be maintained closed against a continuation of the excess
temperature or current.
Thermal or current cut-out which
3.14 non-self-resetting thermal or current cut-out:
can only be reset by a manual action directly acting on the device which is used
exclusively for this purpose and which is mounted in the cable reel.
Insulation of hazardous live parts providing basic protection
3.15 basic insulation:
against electric shock. [future IEV 195-06-04]*
Independent insulation applied in addition to the basic
3.16 supplementary insulation:
insulation in order to provide protection against electric shock in event of a failure of the
basic insulation.
Insulation comprising basic insulation and supplementary
3.17 double insulation:
insulation in order to provide protection against electric shock if basic insulation fails.
[future IEV 195-06-05)*
Single insulation system which provides protection against
3.18 reinforced insulation:
electric shock equivalent to double insulation. [future IEV 195-06-06]*
clamping unit: Part(s) of the terminal necessary for the mechanical clamping and
3.19
the electrical connection of the conductor(s), including the parts which are necessary to
ensure the correct contact pressure.
3.20 terminal: Conductive part of one pole, composed of one or more clamping unit(s)
and insulation if necessary.
3.21 connecting device: Device for the electrical connection of one (or more)
conductor(s), comprising one (or more) terminal(s), either fixed to a base or forming an
integral part of the equipment.
* IEC 50(195) is at present a Committee Draft (Sec 1427).
- 13 -
1242 © IEC:1995
3.22 termination: Insulated or non-insulated connecting device serving for non-reusable
connection of the supply conductors.
4 General requirements
Cable reels shall be so designed and constructed that in normal use their performance is
reliable and without danger to the user and surroundings.
In general, compliance is checked by carrying out all the relevant tests specified.
5 General conditions for type testing
Tests according to this standard are type tests.
5.1
5.2 Unless otherwise specified the tests are made on three samples as delivered.
The components of the cable reels are tested, unless otherwise specified, in accordance
with the requirements of the relevant standard, as applicable.
Unless otherwise specified, the tests are carried out in the order of the clauses, at
5.3
and 35 °C. In case of doubt, the tests are made
an ambient temperature between 15 °C
°C.
at an ambient temperature of 20 °C ± 5
Unless otherwise stated, three samples are submitted to all the tests and the
5.4
requirements are satisfied if all the tests are met.
If only one of the samples does not satisfy a test due to an assembly or manufacturing
fault, which is not representative of the design, that test and any preceding one which may
have influenced the results of the test shall be repeated and also
...
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