IEC 60335-2-124:2024

Household and similar electrical appliances - Safety - Part 2-124: Particular requirements for commercial dry ice blasting machines

IEC 60335-2-124:2024 deals with the safety of dry ice blasting machines intended for commercial indoor or outdoor use for the hand-guided cleaning, decoating and stripping of surfaces. The blasting machines are either equipped with containers for storage of dry ice or produce dry ice internally. These machines are not equipped with a traction drive.
The following power systems are covered:
- mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances,
- battery-operated machines.
This standard does not apply to
- dry ice blasting machines with integrated generation of compressed air;
- dry ice blasting machines using other transport gases besides compressed air or nitrogen;
- dry ice blasting machines with nozzles being controlled by robotic arms;
- spray extraction machines for commercial use (IEC 60335-2-68);
- high pressure cleaners (IEC 60335-2-79);
- sand blasting equipment (abrasive blasting);
- hand-held and transportable motor-operated electric tools (IEC 60745 series, IEC 61029 series, IEC 62841 series);
- machines designed for use in corrosive or explosive environments (dust, vapour or gas);
- machines designed for use in vehicles in non-ventilated environment;
- machines designed for use on board of ships or aircraft.

Appareils électrodomestiques et analogues - Sécurité - Partie 2-124: Exigences particulières pour les machines de projection de glace carbonique à usage commercial

L'IEC 60335-2-124:2024 traite de la sécurité des machines de projection de glace carbonique destinées à un usage commercial en intérieur ou en extérieur pour les applications guidées à la main suivantes: nettoyage, délaquage et décapage des surfaces. Les machines de projection sont soit équipées de réservoirs pour le stockage de la glace carbonique, soit d'un dispositif interne de production de glace carbonique. Ces machines ne sont pas équipées d'une commande de dispositif de déplacement.
Les systèmes d'alimentation suivants sont couverts:
- moteurs alimentés par le réseau dont la tension assignée est inférieure ou égale à 250 V pour les appareils monophasés et à 480 V pour les autres appareils;
- machines alimentées par batteries.
La présente norme ne s'applique pas
- aux machines de projection de glace carbonique équipées d'un système intégré de production d'air comprimé;
- aux machines de projection de glace carbonique qui utilisent d'autres gaz de transport que l'air comprimé ou l'azote;
- aux machines de projection de glace carbonique équipées de buses commandées par des bras robotiques;
- aux machines de nettoyage par pulvérisation et aspiration à usage commercial (IEC 60335 2-68);
- aux appareils de nettoyage à haute pression (IEC 60335-2-79);
- aux matériels de sablage (projection d'abrasif);
- aux outils électroportatifs et portables à moteur (série IEC 60745, série IEC 61029, série IEC 62841);
- aux machines destinées à être utilisées dans des environnements corrosifs ou explosifs (poussière, vapeur ou gaz);
- aux machines destinées à être utilisées dans des véhicules non ventilés;
- aux machines destinées à être utilisées à bord de navires ou d'avions.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l'IEC 60335-1 et ses amendements sauf si cette édition l'exclut. Dans ce cas, la dernière édition qui n'exclut pas la présente partie 2 est utilisée. Elle a été établie sur la base de la sixième édition (2020) de cette norme.

General Information

• Status: Published
• Publication Date: 28-Jan-2024
• ICS: 13.120 - Domestic safety
• ICS: 97.080 - Cleaning appliances
• Technical Committee: SC 61J - Electrical motor-operated cleaning appliances for commercial use
• Drafting Committee: WG 4 - TC 61/SC 61J/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 26-Jan-2024
• Completion Date: 29-Jan-2024

Standards Content (Sample)

IEC 60335-2-124 ®
Edition 1.0 2024-01
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-124:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-124: Particular requirements for commercial dry ice blasting machines

All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 60335-2-124 ®
Edition 1.0 2024-01
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 60335-2-124:2024 includes the content of the references made to
IEC 60335-1:2020
Household and similar electrical appliances – Safety –
Part 2-124: Particular requirements for commercial dry ice blasting machines
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.120, 97.080 ISBN 978-2-8322-8190-1

IEC 60335-1:2020/ISH1:2021 – 1 –
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60335-1
Edition 6.0  2020-09
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –

Part 1: General requirements
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 61: Safety of
household and similar electrical appliances.
The text of this Interpretation Sheet is based on the following documents:
Draft Report on voting
61/5999/DISH 61/6009/RVDISH
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
___________
INTRODUCTION
Edition 6 of IEC 60335-1:2020 defines and introduces requirements for a detachable
power supply part of an appliance. In the document, 24.2 prohibits the use of a power
supply in a flexible cord.
QUESTION:
Does Subclause 24.2 prohibit the use of a detachable power supply part?
ANSWER
No, a "detachable power supply part" is a defined term and is not captured by the term
"power supply" as used in Subclause 24.2.
NOTE A detachable power supply part is captured by the defined term when the output of the power supply
part is detachable from the class III construction part of the appliance at:
– the power supply part, or
– the class III construction part of the appliance.
However, the supply cord (if any) does not have to be detachable from the detachable power supply part.
ICS 13.120; 97.030
IEC 60335-1:2020-09/ISH1:2021-11(en)

– 2 – IEC 60335-2-124:2024 EXV © IEC 2024
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 15
4 General requirement . 27
5 General conditions for the tests . 27
6 Classification . 32
7 Marking and instructions . 32
8 Protection against access to live parts . 43
9 Starting of motor-operated appliances . 45
10 Power input and current . 46
11 Heating . 48
12 Charging of metal-ion batteries . 53
13 Leakage current and electric strength at operating temperature . 54
14 Transient overvoltages . 57
15 Moisture resistance . 58
16 Leakage current and electric strength . 61
17 Overload protection of transformers and associated circuits . 63
18 Endurance . 63
19 Abnormal operation . 63
20 Stability and mechanical hazards . 74
21 Mechanical strength . 76
22 Construction . 79
23 Internal wiring . 94
24 Components . 96
25 Supply connection and external flexible cords . 101
26 Terminals for external conductors . 108
27 Provision for earthing . 110
28 Screws and connections . 112
29 Clearances, creepage distances and solid insulation . 115
30 Resistance to heat and fire . 123
31 Resistance to rusting . 128
32 Radiation, toxicity and similar hazards . 128
Annex A (informative) Routine tests . 143
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 145
Annex C (normative) Ageing test on motors . 166
Annex D (normative) Thermal motor protectors . 167
Annex E (normative) Needle-flame test . 168
Annex F (normative) Capacitors . 169
Annex G (normative) Safety isolating transformers . 171

Annex H (normative) Switches . 172
Annex I (normative) Motors having basic insulation that is inadequate for the rated
voltage of the appliance . 174
Annex J (normative) Coated printed circuit boards . 176
Annex K (informative) Overvoltage categories . 177
Annex L (informative) Guidance for the measurement of clearances and creepage
distances . 178
Annex M (informative) Pollution degree . 181
Annex N (normative) Proof tracking test . 182
Annex O (informative) Selection and sequence of the tests of Clause 30 . 183
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 188
Annex Q (informative) Sequence of tests for the evaluation of electronic circuits . 190
Annex R (normative) Software evaluation . 193
Annex S (informative) Guidance for the application of this standard on measurement
of power input and current based on the requirements of 10.1 and 10.2 concerning the
representative period . 207
Annex T (normative) UV-C radiation effect on non-metallic materials . 208
Annex U (normative) Appliances intended for remote communication through public
networks . 211
Annex AA (informative) Emission of acoustical noise . 215
Annex BB (informative) Emission of vibration . 219
Bibliography . 220
Index of defined terms . 223

Figure 1 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of class II appliances and for parts of class ll construction . 129
Figure 2 – Circuit diagram for leakage current measurement at operating temperature
for single-phase connection of other than class II appliances or parts of class ll
construction . 130
Figure 3 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral class II appliances and for parts of class ll construction . 131
Figure 4 – Circuit diagram for leakage current measurement at operating temperature
for three-phase with neutral appliances other than those of class II or parts of class ll
construction . 132
Figure 5 – Small part . 133
Figure 6 – Example of an electronic circuit with low-power points . 133
Figure 7 – Test finger nail . 134
Figure 8 – Flexing test apparatus . 135
Figure 9 – Constructions of cord anchorages . 136
Figure 10 – An example of parts of an eart
...

IEC 60335-2-124 ®
Edition 1.0 2024-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-124: Particular requirements for commercial dry ice blasting machines

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-124: Exigences particulières pour les machines de projection de glace
carbonique à usage commercial
All rights reserved. Unless otherwise specified, 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
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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IEC 60335-2-124 ®
Edition 1.0 2024-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –

Part 2-124: Particular requirements for commercial dry ice blasting machines

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-124: Exigences particulières pour les machines de projection de glace

carbonique à usage commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120, 97.080 ISBN 978-2-8322-8121-5

– 2 – IEC 60335-2-124:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
4 General requirement . 9
5 General conditions for the tests . 9
6 Classification . 9
7 Marking and instructions . 10
8 Protection against access to live parts . 14
9 Starting of motor-operated appliances . 14
10 Power input and current . 14
11 Heating . 14
12 Charging of metal-ion batteries . 14
13 Leakage current and electric strength at operating temperature . 14
14 Transient overvoltages . 15
15 Moisture resistance . 15
16 Leakage current and electric strength . 15
17 Overload protection of transformers and associated circuits . 15
18 Endurance . 15
19 Abnormal operation . 15
20 Stability and mechanical hazards . 16
21 Mechanical strength . 17
22 Construction . 18
23 Internal wiring . 21
24 Components . 21
25 Supply connection and external flexible cords . 21
26 Terminals for external conductors . 22
27 Provision for earthing . 22
28 Screws and connections . 22
29 Clearances, creepage distances and solid insulation . 22
30 Resistance to heat and fire . 22
31 Resistance to rusting . 23
32 Radiation, toxicity and similar hazards . 23
Annexes . 24
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 25
Annex AA (informative) Emission of acoustical noise . 26
Annex BB (informative) Emission of vibration . 30
Bibliography . 31

Figure 101 – Impact test apparatus . 23

Figure AA.1 – Position of dry ice-blasting machines . 29

Table 12 – Pull force and torque . 22
Table AA.1 – Determination of uncertainty . 28

– 4 – IEC 60335-2-124:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-124: Particular requirements for commercial dry ice blasting
machines
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