SIST EN 61248-3:2002

Transformers and inductors for use in electronic and telecommunication equipment -- Part 3: Sectional specification for power transformers on the basis of the capability approval procedure

Specifies how to prepare detail specifications for power transformers. Includes a blank detail specification, which shows the format, and indicates which tests are considered to be appropriate to this type of component.

Transformatoren und Drosseln für elektronische und nachrichtentechnische Einrichtungen -- Teil 3: Rahmenspezifikation für Leistungstransformatoren mit Befähigungsanerkennung

Transformateurs et inductances destinés aux équipements électroniques et de télécommunications -- Partie 3: Spécification intermédiaire pour les transformateurs de puissance sur la base de la procédure de l'agrément de savoir-faire

Spécifie comment préparer les spécifications particulières pour les transformateurs de puissance. Comprend une spécification particulière cadre, qui montre la présentation et indique les essais appropriés à considérer pour ce type de composant.

Transformers and inductors for use in telecommunication and electronic equipment - Part 3: Sectional specification for power transformers on the basis of the capability approval procedure (IEC 61248-3:1996)

General Information

• Status: Published
• Publication Date: 31-Aug-2002
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2002
• Due Date: 01-Sep-2002
• Completion Date: 01-Sep-2002
• Ref Project: EN 61248-3:1997 - Transformers and inductors for use in electronic and telecommunication equipment - Part 3: Sectional specification for power transformers on the basis of the capability approval procedure

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61248-3:2002
01-september-2002
Transformers and inductors for use in telecommunication and electronic
equipment - Part 3: Sectional specification for power transformers on the basis of
the capability approval procedure (IEC 61248-3:1996)
Transformers and inductors for use in electronic and telecommunication equipment --
Part 3: Sectional specification for power transformers on the basis of the capability
approval procedure
Transformatoren und Drosseln für elektronische und nachrichtentechnische
Einrichtungen -- Teil 3: Rahmenspezifikation für Leistungstransformatoren mit
Befähigungsanerkennung
Transformateurs et inductances destinés aux équipements électroniques et de
télécommunications -- Partie 3: Spécification intermédiaire pour les transformateurs de
puissance sur la base de la procédure de l'agrément de savoir-faire
Ta slovenski standard je istoveten z: EN 61248-3:1997
ICS:
29.180 Transformatorji. Dušilke Transformers. Reactors
SIST EN 61248-3:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61248-3:2002

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SIST EN 61248-3:2002

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SIST EN 61248-3:2002

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SIST EN 61248-3:2002

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SIST EN 61248-3:2002

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SIST EN 61248-3:2002
NORME CEI
INTERNATIONALE I EC
1248-3
INTERNATIONAL
QC 260200
STANDARD
Première édition
First edition
1996-06
Transformateurs et inductances destinés
aux équipements électroniques et de
télécommunications –
Partie 3:
Spécification intermédiaire pour les
transformateurs de puissance sur la base de
la procédure de l'agrément de savoir-faire
Transformers and inductors for use in electronic
and telecommunication equipment –
Part 3:
Sectional specification for power transformers on
the basis of the capability approval procedure
Droits de reproduction réservés Copyright — all rights reserved
© CEI 1996 —
de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
Aucune partie
quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
utilisée sous
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.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale
CODE PRIX
International Electrotechnical Commission
PRICE CODE L
MemuayHapopHan 3nenrporexHuYecnaa HOMHCCHR
IEC
• Pour prix, voir catalogue en vigueur
•
For price, see current catalogue

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SIST EN 61248-3:2002
1248-3 ©!EC:1996 - 3 -
CONTENTS
Pages
FOREWORD 5
Clause
7
1 Scope
7
2 Normative references
9
3 Preparation of the detail specification
11
3.1 General
11
3.2 Ratings and characteristics
11
3.3 Outline drawings and winding schematic diagram
13 Inspection requirements to be listed in the detail specification
4
13
4.1 Conformance inspection
13
4.2 Design verification
13
Detail specification 5
15
Blank detail specification

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SIST EN 61248-3:2002
1248-3 © I EC:1996 - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
TRANSFORMERS AND INDUCTORS FOR USE IN ELECTRONIC
AND TELECOMMUNICATION EQUIPMENT —
Part 3: Sectional specification for power transformers
on the basis of the capability approval procedure
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, express as nearly as possible an
2)
international consensus of opinion on the relevant subjects since each technical committee has
representation from all interested National Committees.
The documents produced have the form of recommendations for international use and are published in the
3)
form of standards, technical reports or guides and they are accepted by the National Committees in that
sense.
In order to promote international unification, IEC National Committees undertake to apply IEC International
4)
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.
The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
5)
equipment declared to be in conformity with one of its standards.
Attention is drawn to the possibility that some of the elements of this International Standard may be the
6)
subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 1248-3 has been prepared by IEC technical committee 51:
Magnetic components and ferrite materials.
This standard is intended for use in the IEC Quality Assessment System for Electronic
Components (IECQ).
The operation of the IECQ is governed by IEC QC 001001 and IEC QC 001002. Specifi-
cations written for components assessed under this scheme, and their use in the scheme,
are the subject of IEC Guide 102.
The text of this standard is based on the following documents:
Report on voting
FDIS
51 /400/FDIS 51/429/RVD
Full information on the voting for the approval of this standard can be found in the report
on voting indicated in the above table.
The QC number that appears on the front cover of this publication is the specification
number in the IECQ System.

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SIST EN 61248-3:2002
-7 -
1248-3 © I EC:1996
TRANSFORMERS AND INDUCTORS FOR USE IN ELECTRONIC
AND TELECOMMUNICATION EQUIPMENT —
Part 3: Sectional specification for power transformers
on the basis of the capability approval procedure
1 Scope
This part of IEC 1248 specifies how to prepare detail specifications for power transformers
to be released under the terms of IEC 1248-1 (QC 260000) capability approval. It includes
a blank detail specification (BDS), which shows the format and indicates which tests are
considered to be appropriate to this type of component, although the final selection of
tests to be included in the inspection schedule is at the discretion of the specification
writer. It also lists appropriate ratings and characteristics.
of IEC 1248 are essentially concerned with
rt
The components covered by this pa
maximum transfer of power at single frequency with an essentially symmetrical waveform.
2 Normative references
The following normative documents contain provisions, which, through reference in this
of IEC 1248. At the time of publication, the editions
rt
text, constitute provisions of this pa
rties to
indicated were valid. All normative documents are subject to revision, and pa
of IEC 1248 are encouraged to investigate the possibility of
rt
agreements based on this pa
applying the most recent editions of the normative documents listed below. Members of
IEC and ISO maintain registers of currently valid international standards.
Electronic components - Specification structures for quality assess-
IEC Guide 102: 1989,
ment (Qualification approval and capability approval)
Basic rules of the IEC Quality Assessment System for Electronic
IEC QC 001001: 1986,
Components (IECQ)
Amendment 2 (1994)
Rules of procedure of the IEC Quality Assessment System for
IEC QC 001002: 1986,
Electronic Components (IECQ)
Amendment 2 (1994)
IEC QC 001004: Specifications list
Register of firms, products and services approved under the IECQ
IEC QC 001005:
System, including ISO 9000
IEC 68-2: Environmental testing - Part 2: Tests
2: Tests - Test Fc and guidance: Vibration
Environmental testing - Pa rt
IEC 68-2-6: 1982,
(sinusoidal)

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SIST EN 61248-3:2002
1248-3 ©IEC:1996 - 9 -
Environmental testing - Part 2: Tests - Test N: Change of temperature
IEC 68-2-14: 1984,
Amendment 1 (1986)
Environmental testing - Part 2: Tests - Test T: Soldering
IEC 68-2-20: 1979,
Amendment 2 (1987)
Environmental testing - Part 2: Tests - Test U: Robustness of ter-
IEC 68-2-21: 1983,
minations and integral mounting devices
Amendment 2 (1991), Amendment 3 (1992)
Environmental testing - Part 2: Tests - Test Ea and Guidance: Shock
IEC 68-2-27: 1987,
Environmental testing - Part 2: Tests - Test Eb and Guidance: Bump
IEC 68-2-29: 1987,
Sampling plans and procedures for inspection by attributes
IEC 410: 1973,
Transformers and inductors for use in electronic and telecommunication
IEC 1007: 1994,
equipment - Measuring methods and test procedures
Transformers and inductors for use in electronic and telecommunication
IEC 1248-1: 1996,
equipment - Part 1: Generic specification
Technical drawings - General principles of presentation
ISO 128: 1982,
Technical drawings - Dimensioning - General principles, definitions,
ISO 129: 1985,
methods of execution and special indications
3 Preparation of the detail specification
This standard is intended to be used for the preparation of detail specifications for power
transformers released under the terms of the IEC 1248-1 (QC 260000) capability approval
procedure.
It is intended for use by the following originators:
a customer wishing to procure power transformers that are within the scope of the
a)
approved capability of his supplying component manufacturer, for example for detail
specifications (DS);
a capability-approved manufacturer of power transformers wishing to prepare
b)
specifications for his own products which are within the scope of his capability
approval.
NOTES
The detail specification should take the form of the BDS shown in clause 5, particularly in respect of
1
the front page format and, in principle, in respect of the presentation of the inspection requirements.
2 Unless otherwise specified, all the tests shown in the BDS are taken from IEC 1007. Those shown
underlined concern operating characteristics of fundamental importance, and i
...