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BS EN 60730-1:2016

BS EN 60730-1:2016

$215.11

Automatic electrical controls – General requirements

Published By Publication Date Number of Pages
BSI 2016 292
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In general, this part of IEC 60730 applies to automatic electrical controls for use in, on, or in association with equipment for household and similar use. The equipment may use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof.

NOTE 1 Throughout this standard the word “equipment” means “appliance and equipment.”

EXAMPLE 1 Controls for appliances within the scope of IEC 60335.

This International Standard is applicable to controls for building automation within the scope of ISO 16484.

This standard also applies to automatic electrical controls for equipment that may be used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications.

EXAMPLE 2 Controls for commercial catering, heating and air-conditioning equipment.

This standard is also applicable to individual controls utilized as part of a control system or controls which are mechanically integral with multifunctional controls having non-electrical outputs.

EXAMPLE 3 Independently mounted water valves, controls in smart grid systems and controls for building automation systems within the scope of ISO 16484-2.

This standard is also applicable to relays when used as controls for IEC 60335 appliances. Additional requirements for the safety and operating values of relays when used as controls for IEC 60335 appliances are contained in Annex U.

NOTE 2 These requirements are referred to in the scope of IEC 61810-1.

NOTE 3 This standard is intended to be used for the testing of any stand-alone relay which is intended to be used as a control of an appliance according to IEC 60335-1. It is not intended to be used for any other stand-alone relay, or to replace the IEC 61810 series of standards.

This standard does not apply to automatic electrical controls intended exclusively for industrial process applications unless explicitly mentioned in the relevant part 2 or the equipment standard.

This standard applies to controls powered by primary or secondary batteries, requirements for which are contained within the standard, including Annex V.

1.1.1 This International Standard applies to the inherent safety, to the operating values, operating times, and operating sequences where such are associated with equipment safety, and to the testing of automatic electrical control devices used in, or in association with, equipment.

This standard applies to controls using thermistors, see also Annex J.

This standard is also applicable to the functional safety of low complexity safety related systems and controls.

1.1.2 This standard applies to automatic electrical controls, mechanically or electrically operated, responsive to or controlling such characteristics as temperature, pressure, passage of time, humidity, light, electrostatic effects, flow, or liquid level, current, voltage, acceleration, or combinations thereof.

1.1.3 This standard applies to starting relays, which are a specific type of automatic electrical control, intended to switch the starting winding of a motor. Such controls may be built into, or be separate from, the motor.

NOTE Starting relays are tested as voltage sensing or current sensing controls.

1.1.4 This standard applies to manual controls when such are electrically and/or mechanically integral with automatic controls.

NOTE Requirements for manual switches not forming part of an automatic control are contained in IEC 61058-1.

1.1.5 This standard applies to a.c. or d.c. powered controls with a rated voltage not exceeding 690 V a.c. or 600 V d.c.

1.1.6 This standard does not take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate household equipment standard or as determined by the manufacturer shall apply.

1.1.7 This standard applies also to controls incorporating electronic devices, requirements for which are contained in Annex H.

1.1.8 This standard applies also to controls using NTC or PTC thermistors, requirements for which are contained in Annex J.

1.1.9 This standard applies to the electrical and functional safety of controls capable of receiving and responding to communications signals, including signals for power billing rate and demand response.

The signals may be transmitted to or received from external units being part of the control (wired), or to and from external units which are not part of the control (wireless) under test.

1.1.10 This standard does not address the integrity of the output signal to the network devices, such as interoperability with other devices unless it has been evaluated as part of the control system.

PDF Catalog

PDF Pages PDF Title
5 Contents
6 Annex ZA (normative) Normative references to international publications with their corresponding European publications
11 Annex ZB (normative) Special national conditions
13 Annex ZC (informative) A-deviations
14 Annex ZD (normative) EMC immunity for controls
ZD.1 Electromagnetic compatibility (EMC) requirements – Immunity
15 ZD.2 Classification of the control
ZD.3 Information
16 ZD.4 Evaluation of compliance
17 ZD.5 Surge immunity test
18 ZD.6 Electrical fast transient/burst immunity test
19 ZD.7 Radio-frequency electromagnetic field immunity
ZD.7.1 Immunity to conducted disturbances
ZD.7.2 Electrostatic discharge
20 ZD.8 Immunity to radiated electromagnetic fields
ZD.9 Immunity to power-frequency magnetic fields
21 ZD.10 Test of the influence of voltage dips and voltage interruption in the power supply network
22 English
CONTENTS
27 FOREWORD
30 1 Scope and normative references
36 2 Terms and definitions
58 3 General requirements
4 General notes on tests
62 5 Rating
6 Classification
70 7 Information
73 Tables
Table 1 (7.2 of edition 3) – Required information and methods of providing information (1 of 4)
79 8 Protection against electric shock
82 9 Provision for protective earthing
84 Table 2 (9.3.2 of edition 3) – Quick connect terminal dimensions (Canada and USA)
85 10 Terminals and terminations
86 Table 3 (10.1.4 of edition 3) – Minimum cross-sectional area of conductors
88 Table 4 (10.1.8 of edition 3) – Terminal conductors
89 Table 5 (10.1.9 of edition 3) – Conductor pull test values
91 Table 6 (10.2.1 of edition 3) – Nominal cross-sectional areas of conductors
92 Table 7 (10.2.4.2 of edition 3) – Material and plating for tabs
Table 8 (10.2.4.3 of edition 3) – Axial force values for tab insertion and withdrawal
93 11 Constructional requirements
103 Table 9 (11.7.2 of edition 3) – Pull and torque values
104 Table 10 (11.8.2 of edition 3) – Minimum cord conductor sizes
111 12 Moisture and dust resistance
113 13 Electric strength and insulation resistance
117 Table 13 (14.1 of edition 3) – Maximum heating temperatures (1 of 3)
121 15 Manufacturing deviation and drift
122 16 Environmental stress
123 17 Endurance
125 Table 14 (17.2.1 of edition 3) – Electrical conditions for the overvoltage test (this table applies in all countries except Canada, and the USA)
130 18 Mechanical strength
134 Table 19 (18.7 of edition 3) – Pull-cord force test values
135 19 Threaded parts and connections
136 Table 20 (19.1 of edition 3) – Threaded parts torque test values
138 20 Creepage distances, clearances and distances through solid insulation
139 Table 21 (20.1 of edition 3) – Rated impulse voltage for equipment energized directly from the supply mains (from IEC 60664-1:2007, Table F.1)
140 Table 22 (20.2 of edition 3) – Clearances for insulation co-ordination(from IEC 606641:2007, Table F.2)
144 Table 23 (20.3 of edition 3) – Minimum creepage distances for basic insulation
145 Table 24 (20.4 of edition 3) – Minimum creepage distancesfor functional insulation
147 21 Resistance to heat, fire and tracking
149 22 Resistance to corrosion
Table 25 (21.4 of edition 3) – Mercury switch shortcircuit conditions
150 23 Electromagnetic compatibility (EMC) requirements – Emission
151 24 Components
153 25 Normal operation
26 Electromagnetic compatibility (EMC) requirements – Immunity
27 Abnormal operation
154 Table 26 (27.2.3 of edition 3) – Maximum winding temperature (for test of mechanical blocked output conditions)
156 28 Guidance on the use of electronic disconnection
Figures
Figure 1 – Test pin
157 Figure 2 – Standard test finger
158 Figure 3 – Test nail
159 Figure 4 – Impact test for free-standing controls
Figure 5 – Tumbling barrel
160 Figure 6 – Ball-pressure apparatus
Figure 7 – Void
Figure 8 – Apparatus for testing durability of markings on rating labels
161 Figure 9 – Apparatus for flexing test
162 Figure 10 – Screw terminals and stud terminals (1 of 2)
164 Figure 11 – Pillar terminals
165 Figure 12 – Mantle terminals
166 Figure 13 – Saddle and lug terminals
167 Figure 14 – Tabs
168 Figure 15 – Tabs for non-reversible connectors
169 Figure 16 – Receptacles
170 Figure 17 – Measurement of creepage distance and clearance
171 Annexes
Annex A (normative) Indelibility of markings
173 Annex B (normative) Measurement of creepage distances and clearances in air
Table B.1 – Value of X
174 Figure B.1 – Narrow groove
Figure B.2 – Wide groove
Figure B.3 – V-shaped groove
175 Figure B.4 – Rib
Figure B.5 – Uncemented joint with narrow groove
Figure B.6 – Uncemented joint with wide groove
176 Figure B.7 – Uncemented joint with narrow and wide grooves
Figure B.8 – Diverging side walls
177 Figure B.9 – Narrow recess
Figure B.10 – Wide recess
Figure B.11 – Conductive floating part
178 Annex C (normative) Cotton used for mercury switch test (not applicable in the countries members of CENELEC)
179 Annex D (informative) Heat, fire and tracking
180 Annex E (normative) Circuit for measuring leakage current
Figure E.1 – Circuit for measuring leakage currents
181 Annex F (informative) Fire hazard testing
182 Annex G (normative) Heat and fire resistance tests
184 Annex H (normative) Requirements for electronic controls
203 Table H.1 (H.11.12.7 of edition 3) – Acceptable measures to address fault/errors a (1 of 6)
210 Figure H.1 – V-Model for the software life cycle
Table H.2 – Semi-formal methods
211 Table H.3 – Software architecture specification
212 Table H.4 – Module design specification
Table H.5 – Design and coding standards
213 Table H.6 – Software module testing
214 Table H.7 – Software integration testing
Table H.8 – Software safety validation
215 Table H.9 (H.11.12.6 of edition 3) – Combinations of analytical measures during hardware development
216 Table H.10 – Data exchange
217 Table H.11 – Examples of defences against unauthorised accessand transmission failure modes
222 Table H.12 (H.23 of edition 3) – Emission
223 Table H.13 (H.26.2.1 of edition 3) – Applicable test levels
225 Table H.14 – Voltage dips, short interruptions and voltage variations
226 Figure H.2 – Voltage variation test
Table H.15 (H.26.5.4.2 of edition 3) – Test values for voltage variations
228 Table H.16 (H.26.8.2 of edition 3) – Test voltages for test level 2 (depending on the installation class conditions)
229 Table H.17 – Test level for electrical fast transient burst test
230 Figure H.3 – Ring wave characteristics (open-circuit voltage)
Figure H.4 – Schematic of a ring wave generator 0,5 (s /100 kHz
231 Table H.19 (H.26.12.2.1 of edition 3) – Test levels for conducted disturbances on mains and I/O lines
232 Table H.20 (H.26.12.3.1 of edition 3) – Test level for immunity to radiated electromagnetic fields
Table H.21 – Increased test level for radiated immunity(ISM, GSM, DECT bands)
233 Table H.22 (H.26.13.2 of edition 3) – Test level for supply frequency variations
234 Table H.23 (H.26.14.2 of edition 3) – Test level for continuous fields
235 Figure H.5 – Example of an electronic circuit with low power points
237 Table H.24 (H.27.1 of edition 3) – Electrical/electronic component fault modes table (1 of 3)
246 Annex J (normative) Requirements for thermistor elements and controls using thermistors
248 Table J.1 – Maximum current
249 Table J.2 (J.7, 7.2 of edition 3) – Normal operating conditions
250 Table J.3 – Samples for the test (clause reference)
251 Table J.4 – Electrical and thermal ratings of a thermistor
253 Table J.5 – Additional items to Table 1
255 Table J.6 – Sequence of calibration and conditioning tests for PTC thermistors
256 Table J.7 – Classes for PTC sensing thermistors
257 Table J.8 – Sequence of calibration and conditioning tests for NTC thermistors
Table J.9 – Classes for NTC sensing thermistors
260 Table J.10 – Number of cycles for endurance test
261 Table J.11 – Ageing test temperature
262 Figure J.1 – Test circuit for inrush-current limiting thermistor endurance test
Table J.12 – Number of cycles for endurance test
264 Annex K (informative) Nominal voltages of supply systems for different modes of overvoltage control
Table K.1 – Inherent control or equivalent protective control
265 Table K.2 – Cases where protective control is necessary and control is provided by surge arresters having a ratio of clamping voltage to rated voltagenot smaller than that specified by IEC 60099-1
266 Annex L (normative) Overvoltage categories
267 Annex M (informative) Typical usage
Table M.1 – Typical usage
268 Annex N (normative) Pollution degrees
269 Annex P (normative) Printed circuit board coating performance test
Table P.1 – Environmental cycling conditions
270 Figure P.1 – Test sample
271 Annex Q (normative) Printed circuit board coating performance test
Table Q.1 – IEC 60664-3 test levels or conditions
272 Figure Q.1 – Test sample
273 Figure Q.2 – Examples of land configurations (see also Figure Q.1)
274 Annex R (informative) Explanatory notes for surge immunity test
277 Figure R.1 – Example of surge protection by shielding in buildings with common earth reference systems
Figure R.2 – Example of secondary surge protection in buildings with separate common earth reference systems
278 Figure R.3 – Example of primary and secondary surge protection of indoor/outdoor equipment
279 Annex S (informative) Guidance for applying Clause 20
Figure S.1 – Guidance flowchart for application of requirements of Clause 20
280 Table S.1 – Example A – Using Annex S guidance for applying Clause 20
Table S.2 – Example B – Using Annex S guidance for applying Clause 20
281 Annex T (normative) Requirements for SELV and PELV
284 Annex U (normative) Requirements for relays when used as controls in IEC 60335 appliances
287 Annex V (normative) Requirements for controls powered by secondary batteries (rechargeable)
289 Bibliography

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BS EN 60730-1:2016
$215.11