Lamp controlgear -- Part 2-10: Particular requirements for electronic invertors and convertors for high-frequency operation of cold start tubular discharge lamps (neon tubes)

This part of EN 61347 specifies general and safety requirements for lamp controlgear for use on d.c. supplies up to 250 V and/or a.c. supplies up to 1 000 V at 50 Hz or 60 Hz. This standard also covers lamp controlgear for lamps which are not yet standardized. Tests dealt with in this standard are type tests. Requirements for testing individual lamp controlgear during production are not included. This part 1 is to be used in conjunction with the appropriate part 2, which contains clauses to supplement or modify the corresponding clauses in part 1, to provide the relevant requirements for each type of product. This first edition of EN 61347-1, together with parts 1 to 9 of EN 61347-2, cancels and replaces EN 60920, EN 60922, EN 60924, EN 60926, EN 60928 and EN 61046, and constitute a minor revision. The relationship between the parts that make up EN 61347-2 and the IEC standards they replace is detailed as follows: EN 61347-2-1 replaces EN 60926 EN 61347-2-2 replaces EN 61046 EN 61347-2-3 replaces EN 60928 EN 61347-2-4 replaces EN 60924, Section 3 EN 61347-2-5 replaces EN 60924, Section 4 EN 61347-2-6 replaces EN 60924, Section 5 EN 61347-2-7 replaces EN 60924, Section 6 EN 61347-2-8 replaces EN 60920 EN 61347-2-9 replaces EN 60922

Geräte für Lampen -- Teil 2-10: Besondere Anforderungen an elektronische Wechselrichter und Konverter für Hochfrequenzbetrieb von röhrenförmigen Kaltstart-Entladungslampen (Neonröhren)

Appareillages de lampes -- Partie 2-10: Prescriptions particulières pour onduleurs et convertisseurs électroniques destinés à l'alimentation en haute fréquence des lampes tubulaires à décharge à démarrage à froid (tubes néon)

La présente partie de la EN 61347 spécifie les prescriptions générales et les prescriptions de sécurité pour les appareillages de lampes destinés à être utilisés sur des alimentations à courant continu jusqu'à 250 V et/ou sur des alimentations à courant alternatif jusqu'à 1000 V à 50 Hz ou 60 Hz. La présente norme traite aussi des appareillages de lampes pour les lampes qui ne sont pas encore normalisées. Les essais traités dans cette norme sont des essais de type. Les prescriptions pour les essais individuels des appareillages de lampes pendant la production ne sont pas incluses. La présente partie 1 doit être utilisée conjointement avec la partie 2 appropriée, qui comporte les articles complétant ou modifiant les articles correspondants de la partie 1, afin d'établir les règles complètes pour chaque type d'appareil. Cette première édition de la EN 61347-1, ainsi que les parties 1 à 9 de la EN 61347-2 annulent et remplacent la EN 60920, la EN 60922, la EN 60924, la EN 60926, la EN 60928, et la EN 61046, et constituent une révision mineure. La correspondance entre les parties composant la EN 61347-2 et les normes qu'elles remplacent est détaillée ci-dessous: la EN 61347-2-1 remplace la EN 60926 la EN 61347-2-2 remplace la EN 61046 la EN 61347-2-3 remplace la EN 60928 la EN 61347-2-4 remplace la EN 60924, Section 3 la EN 61347-2-5 remplace la EN 60924, Section 4 la EN 61347-2-6 remplace la EN 60924, Section 5 la EN 61347-2-7 remplace la EN 60924, Section 6 la EN 61347-2-8 remplace la EN 60920 la EN 61347-2-9 remplace la EN 60922

Lamp controlgear – Part 2-10: Particular requirements for electronic invertors and convertors for high-frequency operation of cold start tubular discarge lamps (neon tubes) (IEC 61347-2-10:2000)

General Information

Status
Published In Translation
Publication Date
30-Nov-2002
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2002
Due Date
01-Dec-2002
Completion Date
01-Dec-2002

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SLOVENSKI STANDARD
SIST EN 61347-2-10:2002
01-december-2002

Lamp controlgear – Part 2-10: Particular requirements for electronic invertors and

convertors for high-frequency operation of cold start tubular discarge lamps (neon

tubes) (IEC 61347-2-10:2000)

Lamp controlgear -- Part 2-10: Particular requirements for electronic invertors and

convertors for high-frequency operation of cold start tubular discharge lamps (neon

tubes)
Geräte für Lampen -- Teil 2-10: Besondere Anforderungen an elektronische

Wechselrichter und Konverter für Hochfrequenzbetrieb von röhrenförmigen Kaltstart-

Entladungslampen (Neonröhren)

Appareillages de lampes -- Partie 2-10: Prescriptions particulières pour onduleurs et

convertisseurs électroniques destinés à l'alimentation en haute fréquence des lampes

tubulaires à décharge à démarrage à froid (tubes néon)
Ta slovenski standard je istoveten z: EN 61347-2-10:2001
ICS:
29.130.01 Stikalne in krmilne naprave Switchgear and controlgear
na splošno in general
29.140.99 Drugi standardi v zvezi z Other standards related to
žarnicami lamps
SIST EN 61347-2-10:2002 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD EN 61347-2-10
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2001
ICS 29.140.99
English version
Lamp controlgear
Part 2-10: Particular requirements for electronic invertors
and convertors for high-frequency operation of
cold start tubular discharge lamps (neon tubes)
(IEC 61347-2-10:2000)
Appareillages de lampes Geräte für Lampen
Partie 2-10: Prescriptions particulières Teil 2-10: Besondere Anforderungen
pour onduleurs et convertisseurs an elektronische Wechselrichter und
électroniques destinés à l'alimentation Konverter für Hochfrequenzbetrieb
en haute fréquence des lampes tubulaires von röhrenförmigen Kaltstart-
à décharge à démarrage à froid Entladungslampen (Neonröhren)
(tubes néon) (IEC 61347-2-10:2000)
(CEI 61347-2-10:2000)

This European Standard was approved by CENELEC on 2000-11-01. 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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,

Portugal, 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

© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61347-2-10:2001 E
---------------------- Page: 2 ----------------------
EN 61347-2-10:2001 - 2 -
Foreword

The text of document 34C/507/FDIS, future edition 1 of IEC 61347-2-10, prepared by SC 34C,

Auxiliaries for lamps, of IEC TC 34, Lamps and related equipment, was submitted to the IEC-

CENELEC parallel vote and was approved by CENELEC as EN 61347-2-10 on 2000-11-01.

The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2001-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2003-11-01
This standard shall be used in conjunction with EN 61347-1:2001.
NOTE In this standard, the following print types are used:
- requirements : in roman type;
- test specifications: in italic type;
- notes: in smaller roman type.
Annexes designated "normative" are part of the body of the standard.
In this standard, annexes A to F, H, I and ZA are normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 61347-2-10:2000 was approved by CENELEC as a

European Standard without any modification.
__________
---------------------- Page: 3 ----------------------
- 3 - EN 61347-2-10:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

This European Standard incorporates by dated or undated reference, provisions from other

publications. These normative references are cited at the appropriate places in the text and the

publications are listed hereafter. For dated references, subsequent amendments to or revisions of

any of these publications apply to this European Standard only when incorporated in it by

amendment or revision. For undated references the latest edition of the publication referred to

applies (including amendments).

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
Publication Year Title EN/HD Year
IEC 61347-1 2000 Lamp controlgear EN 61347-1 2001
Part 1: General and safety requirements
ISO 3864 1984 Safety colours and safety signs - -
---------------------- Page: 4 ----------------------
NORME CEI
INTERNATIONALE IEC
61347-2-10
INTERNATIONAL
Première édition
STANDARD
First edition
2000-10
Appareillages de lampes –
Partie 2-10:
Prescriptions particulières pour onduleurs
et convertisseurs électroniques destinés
à l'alimentation en haute fréquence des lampes
tubulaires à décharge à démarrage à froid
(tubes néon)
Lamp controlgear –
Part 2-10:
Particular requirements for electronic invertors
and convertors for high-frequency operation
of cold start tubular discharge lamps (neon tubes)
 IEC 2000 Droits de reproduction réservés  Copyright - all rights reserved

Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in

utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,

électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in

microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
---------------------- Page: 5 ----------------------
61347-2-10  IEC:2000 – 3 –
CONTENTS
Page

FOREWORD .......................................................................................................................... 5

INTRODUCTION ....................................................................................................................9

Clause

1 Scope ............................................................................................................................ 11

2 Normative references..................................................................................................... 13

3 Definitions...................................................................................................................... 13

4 General requirements .................................................................................................... 15

5 General notes on tests................................................................................................... 15

6 Classification .................................................................................................................15

7 Marking.......................................................................................................................... 17

7.1 Item to be marked................................................................................................. 17

7.2 Durability and legibility of marking ........................................................................ 17

8 Terminals....................................................................................................................... 19

9 Provisions for earthing ................................................................................................... 19

10 Protection against accidental contact with live parts....................................................... 19

11 Moisture resistance and insulation ................................................................................. 21

12 Electric strength.............................................................................................................21

13 Thermal endurance test for windings.............................................................................. 21

14 Normal conditions .......................................................................................................... 21

15 Abnormal conditions ...................................................................................................... 23

16 Fault conditions ............................................................................................................. 23

17 Construction ..................................................................................................................25

18 Creepage distances and clearances............................................................................... 25

19 Protective circuits .......................................................................................................... 27

20 Screws, current-carrying parts and connections ............................................................. 29

21 Resistance to heat, fire and tracking .............................................................................. 29

22 Resistance to corrosion.................................................................................................. 29

23 No-load rated output voltage and rated output current.................................................... 31

23.1 No-load rated output voltage................................................................................. 31

23.2 Rated output current ............................................................................................. 31

23.3 Compliance........................................................................................................... 31

Annexes ............................................................................................................................... 33

---------------------- Page: 6 ----------------------
61347-2-10  IEC:2000 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––––
LAMP CONTROLGEAR –
Part 2-10: Particular requirements for electronic invertors
and convertors for high-frequency operation of cold start
tubular discharge lamps (neon tubes)
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 form of recommendations for international use and are published in the form

of standards, technical specifications, technical 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.

6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject

of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61347-2-10 has been prepared by subcommittee 34C: Auxiliaries

for lamps, of IEC technical committee 34: Lamps and related equipment.

This standard shall be used in conjunction with IEC 61347-1. It was established on the basis

of the first edition (2000) of that standard.

This part 2 supplements or modifies the corresponding clauses in IEC 61347-1, so as to

convert that publication into the IEC Standard: Particular requirements for electronic invertors

and convertors for high-frequency operation of cold start tubular discharge lamps (neon

tubes)
NOTE In this standard, the following print types are used:
– Requirements proper: in roman type.
– Test specifications: in italic type.
– NOTES: Explanatory matter: in smaller roman type.
---------------------- Page: 7 ----------------------
61347-2-10  IEC:2000 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
34C/507/FDIS 34C/521/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.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.

Annexes A, B, C, D, E, F, H and I form an integral part of this standard.

IEC 61347 consists of the following parts, under the general title: Lamp controlgear:

– Part 1: General and safety requirements

– Part 2-1: Particular requirements for starting devices (other than glow starters)

– Part 2-2: Particular requirements for d.c. or a.c. supplied electronic step-down convertors

for filament lamps

– Part 2-3: Particular requirements for a.c. supplied electronic ballasts for fluorescent lamps

– Part 2-4: Particular requirements for d.c electronic ballasts for general lighting

– Part 2-5: Particular requirements for d.c. supplied electronic ballasts for public transport

lighting

– Part 2-6: Particular requirements for d.c supplied electronic ballasts for aircraft lighting

– Part 2-7: Particular requirements for d.c supplied electronic ballasts for emergency lighting

– Part 2-8: Particular requirements for ballasts for fluorescent lamps

– Part 2-9: Particular requirements for ballasts for discharge lamps (excluding fluorescent

lamps)

– Part 2-10: Particular requirements for electronic invertors and convertors for high

frequency operation of cold start tubular discharge lamps (neon tubes)

– Part 2-11: Particular requirements for miscellaneous electronic circuits used with luminaires

The committee has decided that the contents of this publication will remain unchanged until

2003. At this date, the publication will be
 reconfirmed;
 withdrawn;
 replaced by a revised edition, or
 amended.
———————
To be published
---------------------- Page: 8 ----------------------
61347-2-10  IEC:2000 – 9 –
INTRODUCTION

This part of IEC 61347, and the parts which make up IEC 61347-2, in referring to any of the

clauses of IEC 61347-1, specify the extent to which such a clause is applicable and the order

in which the tests are to be performed; they also include additional requirements, as

necessary. All parts which make up IEC 61347-2 are self-contained and, therefore, do not

include references to each other.

Where the requirements of any of the clauses of IEC 61347-1 are referred to in this standard

by the phrase ”The requirements of clause n of IEC 61347-1 apply”, this phrase is interpreted

as meaning that all requirements of the clause in question of part 1 apply, except any which

are clearly inapplicable to the specific type of lamp controlgear covered by this particular part

of IEC 61347-2.
---------------------- Page: 9 ----------------------
61347-2-10  IEC:2000 – 11 –
LAMP CONTROLGEAR –
Part 2-10: Particular requirements for electronic invertors
and convertors for high-frequency operation of cold start
tubular discharge lamps (neon tubes)
1 Scope

This part of IEC 61347 specifies particular requirements for electronic invertors and

convertors for high-frequency operation of tubular cold-cathode discharge lamps used in

signs and luminous discharge tube installations and operating with an output voltage

exceeding 1 000 V but not exceeding 10 000 V for direct connection to supply voltages not

exceeding 1 000 V at 50 Hz or 60 Hz or 1 000 V d.c.
NOTE 1 In Japan, the output voltage of 15 000 V is acceptable.

The requirements for two types of invertors and convertors, types A and B, are specified as

follows:

– Type A unit: an invertor or convertor operating within the frequency range 20 kHz to

50 kHz, and having an output voltage (between terminals) not exceeding 5 000 V peak, a

maximum output current limited to 35 mA (r.m.s.) and 50 mA (peak value). The supply

voltage does not exceed 250 V at 50 Hz or 60 Hz or 250 V d.c.

NOTE 2 The output current of a type A unit may be considered as not presenting an electric shock hazard due to

the limits on the current and frequency range.
NOTE 3 In Japan, the output voltage of 15 000 V is acceptable.

– Type B unit: an invertor or convertor having a no-load output voltage not exceeding

5 000 V to earth or 10 000 V between terminals, operating within the frequency range

10 kHz to 100 kHz with a maximum output current limited to 200 mA (r.m.s.) and 400 mA

(peak value).
NOTE 4 Type B units require additional protection in the output circuit.

NOTE 5 In Japan, a type B unit exceeding 50 mA and/or the secondary grounded is not acceptable.

In order to check the safety of invertors or convertors, it is necessary to check their

performance. However, since no standardization of the characteristics of neon tubes exists,

reference loads are specified in this standard to ensure reproducible test results.

The rated maximum operating temperature of the winding, t , is not applicable to this

standard.
---------------------- Page: 10 ----------------------
61347-2-10  IEC:2000 – 13 –
2 Normative references

For the purpose of this part of IEC 61347, the normative references given in clause 2 of

IEC 61347-1 which are mentioned in this standard apply, together with the following

normative references:
IEC 61347-1, Lamp controlgear – Part 1: General and safety requirements
ISO 3864:1984, Safety colours and safety signs
3 Definitions

For the purpose of this part of IEC 61347, the definitions given in clause 3 of IEC 61347-1,

with the exception of definitions 3.14, 3.16 and 3.17 apply, together with the following:

3.1
tubular cold cathode discharge lamp (neon tube)

discharge tube having cathodes which may be coated with an electron emitting material and

which, during the starting process without external heating, emits electrons by field emission.

These lamps have a low-pressure filling of a rare gas (or a mixture of rare gases) and

possibly mercury vapour. They can have an inside coating of fluorescent materials

3.2
no-load rated output voltage

maximum rated voltage between the output terminals or the ends of the integral connecting

leads of the invertor or convertor connected to the rated supply voltage at rated frequency,

with no load on the output circuit. It is the r.m.s value or the peak value divided by 2

(whichever is the greater)
3.3
invertor
electric energy transducer that converts direct current to alternating current
3.4
convertor

unit for the electronic conversion of a.c. supply at one frequency to an a.c. supply at another

frequency
3.5
earth-leakage protective device

device which removes the output power from an invertor or convertor in the event of an earth

fault current flowing between any part of the output high-voltage circuit and earth

---------------------- Page: 11 ----------------------
61347-2-10  IEC:2000 – 15 –
3.6
open-circuit protective device

device which removes the output power from an invertor or convertor in the event of non-

operation of the tube load or an interruption in the output high-voltage circuit

NOTE An open-circuit protective device may operate by detecting an increase in the output voltage or by other

suitable means.
3.7
upper shut-down limit

output voltage of an invertor or convertor at which an open-circuit protective device operates

3.8
output circuit
that part of the circuit consisting of

a) cables between the output terminals of the convertor or invertor and the discharge tubes;

b) discharge tubes;
c) any series connections between the discharge tubes.

It does not include any internal components or wiring of the invertor or convertor.

4 General requirements
The general requirements of clause 4 of IEC 61347-1 apply.
5 General notes on tests
The general requirements of clause 5 of IEC 61347-1 apply.
6 Classification
The requirements of clause 6 of IEC 61347-1 apply, together with the following:

Invertors and convertors shall be classified according to their no-load output voltage, the

rating of the operating frequency and output current range, as follows:
a) type A invertor or convertor;
b) type B invertor or convertor.

Type B invertors or convertors may have more than one output. In this case, each output shall

comply with the above.
---------------------- Page: 12 ----------------------
61347-2-10  IEC:2000 – 17 –
7 Marking
7.1 Item to be marked

Electronic invertors and convertors for high-frequency operation of cold start tubular

discharge lamps shall be clearly and durably marked, in accordance with the requirements of

7.2 of IEC 61347-1, with the following markings:
– items a), b), c), d), e) and f) of 7.1 of IEC 61347-1, together with

– on independent electronic invertors and convertors, a warning notice for high voltage, e.g.

"HIGH VOLTAGE" and a symbol in the form of an arrow in accordance with IEC 60417
and figure 1 of ISO 3864.

This marking shall bea placed on the outside of the enclosure of the electronic invertor or

convertor so that it is clearly visible.

NOTE It is not necessary to mark integral invertors or convertors separately as their marking is the subject of

relevant sign or luminaire standards.
– type A or type B as applicable.
7.2 Durability and legibility of marking

In addition to the above mandatory marking, the following information, if applicable, shall be

given on the electronic invertor or convertor, or be made available in the manufacturer’s

catalogue or similar:
– items h), k), m), n) and o) of 7.1 of IEC 61347-1, together with

– if the electronic invertor or convertor consists of more than one separate unit, the units

providing the output shall be marked with necessary information about other associated

units such as d.c power supplies or capacitors;

– the range and number of tube types, diameters and lengths recommended for the invertor

or convertor;

– where the invertor or convertor is not supplied with integral leads, (tails) details of the

recommended cable types and maximum cable lengths;

– details of suitable types of mounting surfaces and recommended mounting arrangements;

– details of earthing arrangements, including connections to the invertor or convertor output

winding, where appropriate;
– details of any protective circuits incorporated in the invertor or convertor;
– the following nominal electrical characteristics:
1) output no-load voltage. This marking shall be in the following terms:
y if the output terminal is not connected to an earthing terminal:
“...kV” (e.g. 4 kV),
y if one output terminal is connected to an earthing terminal:
“E -...kV” (e.g. E – 4 kV),
y if the centre point of the output winding is referred to an earthing terminal:
“... - E -...kV” (e.g. 3 – E – 3 kV);
NOTE In Japan, E -..kV and - E - kV are not used.

For type A units, this will be the peak value. For type B units, it will be the r.m.s. value

or 0,5 times the peak value, whichever is the greater.
---------------------- Page: 13 ----------------------
61347-2-10  IEC:2000 – 19 –
2) output current with rated load;
3) output frequency.

Where appropriate, the details in items 1) and 2) above shall be marked for each independent

output circuit of an invertor or convertor.
8 Terminals
The requirements of clause 8 of IEC 61347-1 apply, together with the following:

Invertors or convertors provided with tails shall comply with the relevant requirements of

IEC 60598-1.
9 Provisions for earthing
The requirements of clause 9 of IEC 61347-1 apply, together with the following:

For type B invertors or convertors, the earthing terminal shall be connected to a part of the

output circuit except where

– the earthing terminal is connected to a part of the output circuit through means to detect

earth-fault currents, or

– there is no direct connection between any part of the output circuit and the earth terminal,

and for example, part(s) of that output circuit are referenced to earth potential by means of

the internal circuits.
Compliance is checked by inspection.
NOTE In Japan, this clause is not applicable.
10 Protection against accidental contact with live parts
The requirements of clause 10 of IEC 61347-1 apply, together with the following:

10.1 The remaining charge between terminals in the output circuit of an invertor or convertor

following a worst case of disconnection shall not exceed 45 µC.
Compliance is checked by measurement.

10.2 Where part(s) of the output circuit of an invertor or convertor is(are) not connected to

earth, or is(are) not referenced to earth by means of internal circuits, the insulation barrier

between the input and output circuits shall consist of double or reinforced insulation

(see clause 12, test voltages).
Compliance is checked by the test of clause 12, test voltages.
---------------------- Page: 14 ----------------------
61347-2-10  IEC:2000 – 21 –
11 Moisture resistance and insulation
The requirements of clause 11 of IEC 61347-1 apply, together with the following:

For type A units the capacitance between the output terminals and the metal foil of not less

than 100 cm area placed anywhere on the surface of the enclosure of the invertor or

convertor shall not exceed 50 pF. During the test the convertor shall not operate.

12 Electric strength
The requirements of clause 12 of IEC 61347-1 apply, together with the following:
Test voltages
The test voltages for all invertors and convertors are:

– twice the rated input voltage plus 1 000 V on the input side, with the output circuits

connected to the external metal parts;

– twice the no-load rated output voltage on the output side, the input circuits being

connected to external metal parts.
NOTE In Japan, a 1,5 test voltage is approved.
Table 10.2 of IEC 60598-1 applies for independent invertors or convertors.
13 Thermal endurance test for windings

An invertor or convertor or its support shall not, under normal or abnormal conditions, have

too high a temperature or impair safety.
Compliance is checked by the tests specified in clauses 14, 15 and 16.
14 Normal conditions

14.1 The invertor or convertor shall be installed in its normal operating position arranged in

accordance with the manufacturer’s instructions and mounted as shown in figure H.1 of

IEC 61347-1. The test shall be carried out in a draught-free enclosure as specified in annex F

of IEC 61347-1.

14.2 The invertor or convertor shall be operated with the tube load replaced by the specified

load resistor R (see annex I) and with nominal supply voltage.

– In the case of invertors or convertors which provide near constant current output, the

supply voltage shall be maintained at the nominal value until steady-state temperatures

are obtained.

– In the case of invertors or convertors which do not provide near constant current output,

adjustments shall be made to the supply voltage until the output current is the same as the

nominal value specified on the label of the invertor or convertor. The output current is then

maintained at this value until steady-state temperatures are obtained.
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61347-2-10  IEC:2000 – 23 –

14.3 If the invertor or convertor has more than one output, the appropriate load resistors (R )

shall be connected to each pair of output terminals.

14.4 During the test, the temperature on the relevant parts shall not exceed the values

specified in tables 12.1 and 12.2 of IEC 60598-1.
15 Abnormal conditions

15.1 The invertor or convertor shall be operated under the test conditions specified in 15.2,

and according to the manufacturer’s instructions (including heatsinks and spacers, if

specified) at the most onerous voltage between 90 % and 110 % of the rated supply voltage

for a period of 1 h. T
...

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