IEC 61810-7:2006

Electromechanical elementary relays - Part 7: Test and measurement procedures

IEC 61810-7:2006 Lays down the test and measurement procedures for electromechanical elementary relays. Covers basic considerations which are common to all types of electromechanical elementary relays. Supplementary requirements may be necessitated by specific designs or application.

Relais électromécaniques élémentaires - Partie 7: Méthodes d'essai et de mesure

La CEI 61810-7:2006 énonce les procédures d'essai et de mesure pour les relais élémentaires électromécaniques. Elle couvre d'une manière générale tous les types de relais élémentaires électromécaniques. Des exigences complémentaires peuvent être nécessaires pour des conceptions ou des applications particulières. Les procédures d'essai et de mesure selon la présente norme sont décrites sous forme de dispositions individuelles couvrant une exigence spécifique. Pour les combiner avec un programme d'essai, on doit prendre soin (par un regroupement approprié des relais soumis à essai, par exemple) de s'assurer que des essais antérieurs ne dévaluent pas des essais postérieurs. Cette deuxième édition annule et remplace la première édition parue en 1997. Cette deuxième édition constitue une révision technique. Cette nouvelle édition a été révisée dans les buts suivants:
- mettre à jour toutes les références normatives,
- adapter son contenu aux éditions les plus récentes des autres parties de la série de normes de base relatives aux relais (CEI 61810-1 et CEI 61810-2),
- établir la cohérence avec d'autres normes CEI (de la série CEI 60068-2, par exemple),
- améliorer les procédures d'essai et de mesure, s'il y a lieu,
- supprimer les essais qui ne sont plus utilisés dans le cas des relais élémentaires pour application industrielle.

General Information

• Status: Published
• Publication Date: 13-Mar-2006
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.70 - Relays
• Technical Committee: TC 94 - Electrical relays
• Drafting Committee: WG 3 - TC 94/WG 3
• Current Stage: PPUB - Publication issued
• Start Date: 31-May-2006
• Completion Date: 14-Mar-2006

Relations

• Revises: IEC 61810-7:1997 - Electromechanical all-or-nothing relays - Part 7: Test and measurement procedures
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 61810-7
Second edition
2006-03
Electromechanical elementary relays –
Part 7:
Test and measurement procedures
Reference number
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INTERNATIONAL IEC
STANDARD 61810-7
Second edition
2006-03
Electromechanical elementary relays –
Part 7:
Test and measurement procedures

 IEC 2006  Copyright - all rights reserved
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 the publisher.
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For price, see current catalogue

– 2 – 61810-7  IEC:2006(E)
CONTENTS
FOREWORD.5

1 Scope.7
2 Normative references.7
3 Terms and definitions .9
4 Test and measurement procedures .18
4.1 General .18
4.2 Deviations .18
4.3 Precision of measurement .18
4.4 Power supplies .18
4.5 Reference conditions for testing.19
4.6 Visual inspection and check of dimensions.20
4.7 Mechanical tests and weighing.20
4.8 Relay coil properties .21
4.9 Dielectric strength test .25
4.10 Impulse voltage test.26
4.11 Insulation resistance.27
4.12 Contact-circuit resistance (or voltage drop) .28
4.13 Functional tests .29
4.14 Timing tests.35
4.15 Climatic tests/sequence.38
4.16 Damp heat, steady state .40
4.17 Thermal resistance of the coil .41
4.18 Heating.42
4.19 Rapid change of temperature.44
4.20 Enclosure .44
4.21 Internal moisture.46
4.22 Corrosive atmospheres.46
4.23 Mould growth.47
4.24 Robustness of terminals .48
4.25 Soldering.48
4.26 Shock.49
4.27 Bump .50
4.28 Vibration.51
4.29 Acceleration .52
4.30 Electrical endurance .53
4.31 Mechanical endurance .56
4.32 Thermal endurance.56
4.33 Limiting continuous current .57
4.34 Overload (contact circuit).57
4.35 Load transfer .58
4.36 Electromagnetic compatibility.59
4.37 Magnetic interference .60
4.38 Crosstalk and insertion loss .61
4.39 Electrical contact noise .61

61810-7  IEC:2006(E) – 3 –
4.40 Thermoelectric e.m.f.62
4.41 Capacitance .62
4.42 Contact sticking (delayed release) .63
4.43 Magnetic remanence .63
4.44 Acoustic noise .65
4.45 Continuity of protective earth connection.66
4.46 Fluid contamination .66
4.47 Resistance to cleaning solvents .67
4.48 Fire hazard .68
4.49 Temperature rise at rated load.68
4.50 Mechanical interlock .69
4.51 Insertion and withdrawal force (mating relay and socket).69

Annex A (normative) Heating test arrangement.71
Annex B (normative) Fire hazard testing .72
Annex C (normative) Test circuit for endurance tests.77
Annex D (informative) Inductive contact loads .84

Bibliography .86

Figure 1 – Typical circuit for the measurement of coil transient suppression.23
Figure 2 – Typical traces on an oscilloscope screen during transient voltage
measurement.24
Figure 3 – Monostable non-polarized relay.30
Figure 4 – Monostable relay polarized by diode.31
Figure 5 – Monostable polarized relay with magnetic biasing.32
Figure 6 – Bistable non-polarized relay (not applicable to remanence relays) .33
Figure 7 – Bistable polarized relay (example) .34
Figure 8 – Typical circuit for the measurement of time parameters.36
Figure 9 – Typical traces on an oscilloscope screen during time measurements.37
Figure 10 – Test circuit for load transfer .59
Figure 11 – Mounting array for adjacent similar relays .60
Figure 12 – Directions of the test current for magnetic interference test, method 3.61
Figure 13 – Sequential diagram for magnetic remanence test .64
Figure 14 – Installation for the test for acoustic noise emission.65
Figure A.1 – Test arrangement.71
Figure B.1 – Glow-wire and position of the thermocouple.73
Figure B.2 – Glow-wire test apparatus (example).74
Figure B.3 – Needle flame test details .76
Figure C.1 – Standard test circuit .77
Figure C.2 – Functional block diagram.78
Figure C.3 – Circuit for cable load .80
Figure C.4 – Test circuit for inrush current loads (for example capacitive loads and
simulated tungsten filament lamp loads) – a.c. circuits.81

– 4 – 61810-7  IEC:2006(E)
Figure C.5 – Example for a tungsten filament lamp test for relays rated 10/100 A/250 V~/
2,5 ms .82
Figure C.6 – Test circuit for inrush current loads (for example capacitive loads and
simulated lamp loads) – d.c. circuits.82
Figure C.7 – Test circuit for inrush current loads (for example simulated fluorescent
lamp loads) with power-factor correction.83

Table 1 – Coil voltage values and corresponding functions .29
Table 2 – Cross-sectional areas and lengths of conductors dependent on the current
carried by the terminal.43
Table 3 – Schematics for contact loading .55
Table 4 – Test fluids and temperatures of tests .67
Table C.1 – Characteristics of power sources for contact loads.78
Table C.2 – Standard contact load characteristics .
...

IEC 61810-7 ®
Edition 2.0 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –
Part 7: Test and measurement procedures

Relais électromécaniques élémentaires –
Partie 7: Méthodes d'essai et de mesure

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IEC 61810-7 ®
Edition 2.0 2006-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –

Part 7: Test and measurement procedures

Relais électromécaniques élémentaires –

Partie 7: Méthodes d'essai et de mesure

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.120.70 ISBN 978-2-8322-1627-9

– 2 – IEC 61810-7:2006 © IEC 2006
CONTENTS
FOREWORD . 5

1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 9
4 Test and measurement procedures . 18
4.1 General . 18
4.2 Deviations . 18
4.3 Precision of measurement . 18
4.4 Power supplies . 18
4.5 Reference conditions for testing . 19
4.6 Visual inspection and check of dimensions . 20
4.7 Mechanical tests and weighing . 20
4.8 Relay coil properties . 21
4.9 Dielectric strength test . 24
4.10 Impulse voltage test . 26
4.11 Insulation resistance . 27
4.12 Contact-circuit resistance (or voltage drop) . 27
4.13 Functional tests . 29
4.14 Timing tests . 35
4.15 Climatic tests/sequence . 38
4.16 Damp heat, steady state . 40
4.17 Thermal resistance of the coil . 41
4.18 Heating . 42
4.19 Rapid change of temperature . 44
4.20 Enclosure . 44
4.21 Internal moisture . 46
4.22 Corrosive atmospheres . 46
4.23 Mould growth . 47
4.24 Robustness of terminals . 48
4.25 Soldering . 48
4.26 Shock . 49
4.27 Bump . 50
4.28 Vibration . 51
4.29 Acceleration . 52
4.30 Electrical endurance . 53
4.31 Mechanical endurance . 56
4.32 Thermal endurance . 56
4.33 Limiting continuous current . 57
4.34 Overload (contact circuit) . 57
4.35 Load transfer . 58
4.36 Electromagnetic compatibility . 59
4.37 Magnetic interference . 59
4.38 Crosstalk and insertion loss . 61
4.39 Electrical contact noise . 61

4.40 Thermoelectric e.m.f. . 62
4.41 Capacitance . 62
4.42 Contact sticking (delayed release) . 63
4.43 Magnetic remanence . 63
4.44 Acoustic noise . 65
4.45 Continuity of protective earth connection . 66
4.46 Fluid contamination . 66
4.47 Resistance to cleaning solvents . 67
4.48 Fire hazard . 68
4.49 Temperature rise at rated load . 68
4.50 Mechanical interlock . 69
4.51 Insertion and withdrawal force (mating relay and socket) . 69

Annex A (normative) Heating test arrangement . 71
Annex B (normative) Fire hazard testing . 72
Annex C (normative) Test circuit for endurance tests . 77
Annex D (informative) Inductive contact loads . 84

Bibliography . 86

Figure 1 – Typical circuit for the measurement of coil transient suppression . 23
Figure 2 – Typical traces on an oscilloscope screen during transient voltage
measurement . 24
Figure 3 – Monostable non-polarized relay . 30
Figure 4 – Monostable relay polarized by diode .
...