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IEC 60730-1
Edition 5.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic electrical controls –
Part 1: General requirements
Dispositifs de commande électrique automatiques –
Partie 1: Exigences générales
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IEC 60730-1
Edition 5.0 2013-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic electrical controls –
Part 1: General requirements
Dispositifs de commande électrique automatiques –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 97.120 ISBN 978-2-8322-1175-5
– 2 – 60730-1 © IEC:2013
CONTENTS
CONTENTS . 2
FOREWORD . 7
1 Scope and normative references . 10
2 Terms and definitions . 14
3 General requirements . 36
4 General notes on tests . 37
5 Rating. 40
6 Classification . 40
7 Information . 48
8 Protection against electric shock . 56
9 Provision for protective earthing . 59
10 Terminals and terminations . 62
11 Constructional requirements . 70
12 Moisture and dust resistance . 88
13 Electric strength and insulation resistance . 90
14 Heating . 93
15 Manufacturing deviation and drift . 99
16 Environmental stress . 100
17 Endurance . 101
18 Mechanical strength . 110
19 Threaded parts and connections . 117
20 Creepage distances, clearances and distances through solid insulation . 120
21 Resistance to heat, fire and tracking . 129
22 Resistance to corrosion . 131
23 Electromagnetic compatibility (EMC) requirements – Emission . 132
24 Components . 133
25 Normal operation . 135
26 Electromagnetic compatibility (EMC) requirements – Immunity . 135
27 Abnormal operation . 135
28 Guidance on the use of electronic disconnection . 138
Annex A (normative) Indelibility of markings . 158
Annex B (normative) Measurement of creepage distances and clearances in air . 160
Annex C (normative) Cotton used for mercury switch test (not applicable in the
countries members of CENELEC) . 165
Annex D (informative) Heat, fire and tracking . 166
Annex E (normative) Circuit for measuring leakage current . 167
Annex F (informative) Fire hazard testing . 168
Annex G (normative) Heat and fire resistance tests. 169
Annex H (normative) Requirements for electronic controls . 171
Annex J (normative) Requirements for thermistor elements and controls using
thermistors . 236
60730-1 © IEC:2013 – 3 –
Annex K (informative) Nominal voltages of supply systems for different modes of
overvoltage control . 254
Annex L (normative) Overvoltage categories . 256
Annex M (informative) Typical usage . 257
Annex N (normative) Pollution degrees . 258
Annex P (normative) Printed circuit board coating performance test . 259
Annex Q (normative) Printed circuit board coating performance test . 261
Annex R (informative) Explanatory notes for surge immunity test . 264
Annex S (informative) Guidance for applying Clause 20 . 269
Annex T (normative) Requirements for SELV and PELV . 271
Annex U (normative) Requirements for relays when used as controls in IEC 60335
appliances . 274
Annex V (normative) Requirements for controls powered by secondary batteries
(rechargeable) . 277
Bibliography . 279
Figure 1 – Test pin . 138
Figure 2 – Standard test finger . 139
Figure 3 – Test nail . 140
Figure 4 – Impact test for free-standing controls . 141
Figure 5 – Tumbling barrel . 141
Figure 6 – Ball-pressure apparatus . 142
Figure 7 – Void . 142
Figure 8 – Apparatus for testing durability of markings on rating labels . 142
Figure 9 – Apparatus for flexing test . 143
Figure 10 – Screw terminals and stud terminals (1 of 2) . 144
Figure 11 – Pillar terminals . 146
Figure 12 – Mantle terminals . 147
Figure 13 – Saddle and lug terminals . 148
Figure 14 – Tabs . 149
Figure 15 – Tabs for non-reversible connectors . 150
Figure 16 – Receptacles . 151
Figure 17 – Measurement of creepage distance and clearance . 152
Figures 18 to 24 Void . 153
Figure 25 – Diagram for leakage current measurement at operating temperature for
single-phase connection of class II controls . 153
Figure 26 – Diagram for lea
...