Amendment 1 - Fixed capacitors for use in electronic equipment - Part 14: Sectional specification - Fixed capacitors for electromagnetic interference suppression and connection to the supply mains

Amendement 1 - Condensateurs fixes utilisés dans les équipements électroniques - Partie 14: Spécification intermédiaire - Condensateurs fixes d'antiparasitage et raccordement à l'alimentation

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Status
Published
Publication Date
13-Jul-2016
Current Stage
PPUB - Publication issued
Completion Date
14-Jul-2016
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IEC 60384-14:2013/AMD1:2016 - Amendment 1 - Fixed capacitors for use in electronic equipment - Part 14: Sectional specification - Fixed capacitors for electromagnetic interference suppression and connection to the supply mains
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IEC 60384-14
Edition 4.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Fixed capacitors for use in electronic equipment –
Part 14: Sectional specification – Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 14: Spécification intermédiaire – Condensateurs fixes d'antiparasitage
et raccordement à l'alimentation
IEC 60384-14:2013-06/AMD1:2016-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60384-14
Edition 4.0 2016-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AM ENDMENT 1
AM ENDEMENT 1
Fixed capacitors for use in electronic equipment –
Part 14: Sectional specification – Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 14: Spécification intermédiaire – Condensateurs fixes d'antiparasitage
et raccordement à l'alimentation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8322-3509-6

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60384-14:2013/AMD1:2016
© IEC 2016
FOREWORD

This amendment has been prepared by IEC technical committee 40: Capacitors and resistors

for electronic equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
40/2463/FDIS 40/2469/RVD

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
1.1 Scope
Replace, in the scope, the value "1 000 V d.c." by "1 500 V d.c."
1.4 Information to be given in a detail specification
Add, after the third paragraph and before the NOTE, the following new paragraph:

Requirements for safety approved a.c. capacitors to be used in d.c. applications are found in

Annex H.
4.12 Damp heat, steady state
Add, after the first paragraph, the following new paragraph:

Requirements for capacitors used in high humidity applications are contained in Annex I.

Add, after the existing Annex G, the new Annex H and Annex I, as follows:
---------------------- Page: 4 ----------------------
IEC 60384-14:2013/AMD1:2016 – 3 –
© IEC 2016
Annex H
(normative)
Use of safety approved a.c. rated capacitors in d.c. applications
H.1 Overview

This annex gives additional requirements for a.c. EMI suppression capacitors for which safety

approval is sought and which are connected to a d.c. supply with nominal voltage not

exceeding 1 500 V d.c.

If a safety approved capacitor fulfils the requirements of this annex, it is qualified at the d.c.

rated voltage exceeding its approved a.c. rated voltage, without changing the capacitor class.

H.2 Background

Safety capacitors approved to this standard are a.c. capacitors which are essentially designed

for applications where a.c. voltage is applied.

They have been allowed to be used in d.c. supplies having the same voltage as the a.c. r.m.s.

rated voltage of the capacitors. (See 1.5.1, Note 1 to entry).

The class of the capacitors, such as X1 and Y1, is defined according to their peak impulse

withstanding voltage and the type of insulation bridged.

A capacitor used for a.c. voltage application is subjected to the voltage waveform with peak

voltage equal to r.m.s. voltage times square root of two, which is alternating polarity in a wave

cycle, so that safety approved capacitors theoretically can withstand at least a d.c. voltage

equivalent to their a.c. rated voltage times square root of two.
H.3 Terms and definitions
H.3.1
d.c. rated voltage
U d.c.

maximum d.c. operating voltage, which may be applied continuously to the terminations of a

capacitor at any temperature between the lower and the upper category temperatures

Note 1 to entry: This term and designation (U d.c.) are used only for a capacitor specified with d.c. rated voltage

exceeding its a.c. r.m.s. rated voltage.

Note 2 to entry: This definition replaces that given in IEC 60384-14:2013, 1.5.1.

H.4 Additional requirement for use of X- and Y-capacitors in d.c. applications

A capacitor, which is specified for a d.c. rated voltage exceeding the a.c. r.m.s. rated voltage,

shall fulfil the requirements specified in Table H.1 in addition to the tests prescribed in

Table 3.
---------------------- Page: 5 ----------------------
– 4 – IEC 60384-14:2013/AMD1:2016
© IEC 2016
Table H.1 – Additional test conditions
Type Maximum U d.c. Test voltage d.c. Endurance test Damp heat, steady
(Test A) (d.c.) state test
(according 4.2.1)
X1 1 500 V According to 4.14 According to 4.12,
2,15 × U d.c.
using d.c. rated but with d.c. rated
X2 1 500 V
voltage instead of
voltage applied to
U , without voltage the whole sample.
Y1 1 500 V 4 × U d.c.
increased to U .
Y2 1 500 V 2,15 × U d.c.
Y4 450 V
2,15 × U d.c.

If an a.c. test voltage is used instead of a d.c. voltage for Y-capacitors, it shall be not less than 0,666 × d.c.

test voltage in Table H.1.
H.5 Creepage and clearance distances

When a capacitor approved by this annex is used for a specific application, it shall be

confirmed that creepage and clearance distances of the capacitor meet the requirements of

the related standards for the application.

NOTE Examples of the specific standards and the requirements mentioned above, see IEC 60939-3: Table 6 and

Table 7.
---------------------- Page: 6 ----------------------
IEC 60384-14:2013/AMD1:2016 – 5 –
© IEC 2016
Annex I
(normative)
Humidity robustness grades for applications, where high
stability under high humidity operating conditions is required
I.1 Overview

In addition to the description of preferred climatic categories in 2.1.1 and test damp heat,

steady state in 4.12, this annex describes specific humidity robustness grades and

requirements for applications, where high stability under high humidity operating conditions is

required.
I.2 Humidity robustness grades

For high humidity applications the Grades (I) robustness under humidity, Grade (II)

robustness under high humidity and Grade (III) high robustness under high humidity are

defined.
I.2.1 Grade (I) robustness under humidity

To verify Grade (I), either test condition A or B shall be selected by the manufacturer. For

requirements, see Table I.1. In case the capacitors are specified for a.c. and d.c. applications,

one sample shall be tested with the rated a.c. voltage, and one sample shall be tested with

rated d.c. voltage.

Test condition A: Test damp heat, steady state; 40 °C / 93 % RH duration 21 days, rated

voltage applied.

Test condition B: Test damp heat, steady state; 85 °C / 85 % RH duration 168 h, rated

voltage applied.

NOTE Test condition B is a substitutional acceleration test for test condition A.

I.2.2 Grade (II) robustness under high humidity

To verify Grade (II), either test condition A or B shall be selected by the manufacturer. For

requirements see Table I.1. In case the capacitors are specified for a.c. and d.c. applications,

one sample shall be tested with the rated a.c. voltage, and one sample shall be tested

...

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