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IEC 61810-1 Ed. 3.0 Electromechanical elementary relays - Part 1: General requirements

Standard Number:  IEC 61810-1 Ed. 3.0
Title:  Electromechanical elementary relays - Part 1: General requirements
Language:  English and French
Replaced by Standard:  IEC 61810-1 Ed. 4.0

Replacing Standard:  IEC 61810-1 Ed. 2.0

Status:  Current
International Classification for Standards (ICS)ELECTRICAL ENGINEERING>>Electrical accessories>>Relays
Publisher:  International Electrotechnical Commission (IEC)
Price:  
Number of Pages:67  

Description:Applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into equipment. Defines the basic functional requirements and safety-related aspects for applications in all areas of electrical engineering or electronics. Compliance with the requirements of this standard is verified by the type tests indicated. The main changes with respect to the previous edition comprise- - inclusion of contact load categories (same as in IEC 61810-2 and IEC 61810-7); - clarifications concerning electrical endurance; - inclusion of provisions for insulation coordination in accordance with the basic safety standards; - inclusion of new annexes for the test set-up, and for special loads. The contents of the corrigendum of February 2010 have been included in this copy.  
Catalog:Document Contents
CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
3.1 Definitions related to general terms
3.2 Definitions of relay types
3.3 Definitions related to conditions and operations
3.4 Definitions of operating values
3.5 Definitions related to contacts
3.6 Definitions related to accessories
3.7 Definitions related to insulation
4 Influence quantities
5 Rated values
5.1 Rated coil voltage/rated coil voltage range
5.2 Operative range
5.3 Release
5.4 Reset
5.5 Electrical endurance
5.6 Frequency of operation
5.7 Contact loads
5.8 Ambient temperature
5.9 Categories of environmental protection
5.10 Duty factor
6 General provisions for testing
7 Documentation and marking
7.1 Data
7.2 Additional data
7.3 Marking
7.4 Symbols
8 Heating
8.1 Requirements
8.2 Test procedure
8.3 Terminals
9 Basic operating function
9.1 General test conditions
9.2 Operate (monostable relays)
9.3 Release (monostable relays)
9.4 Operate/reset (bistable relays)
10 Insulation resistance and dielectric strength
10.1 Preconditioning
10.2 Insulation resistance
10.3 Dielectric strength
11 Electrical endurance
12 Mechanical endurance
13 Clearances, creepage distances and solid insulation
13.1 General provisions
13.2 Clearances and creepage distances
13.3 Solid insulation
13.4 Accessible surfaces
14 Terminations
14.1 Screw terminals and screwless terminals
14.2 Flat quick-connect terminations
14.3 Solder terminals
14.4 Sockets
14.5 Alternative termination types
15 Sealing
16 Heat and fire resistance
Annex A (normative) Explanations regarding relays
Annex B (informative) Inductive contact loads
Annex C (normative) Test set-up
Annex D (informative) Special loads
Annex E (normative) Heating test arrangement
Annex F (normative) Measurement of clearances and creepage distances
Annex G (normative) Relation between rated impulse voltage, nominal voltage and overvolta...
Annex H (normative) Pollution degrees
Annex I (normative) Proof tracking test
Annex J (informative) Schematic diagram of families of terminations
Annex K (normative) Glow-wire test
Annex L (normative) Ball pressure test
Annex M (informative) Needle flame test
Alphabetical list of terms
Bibliography
Figures
Figure A.1 – Diagram explaining terms related to monostable relays
Figure A.2 – Example explaining terms relating to contacts
Figure A.3 – Explanations regarding the operative range of the coil voltage
Figure A.4 – Explanation regarding the preconditioning and testing of the operate voltag...
Figure A.5 – Explanation regarding the preconditioning and testing of the operate voltag...
Figure C.1 – Standard test circuit
Figure C.2 – Functional block diagram
Figure C.3 – Contact load categories
Figure D.1 – Circuit for cable load
Figure D.2 ? Test circuit for inrush current loads (e.g. capacitive loads and simulated t...
Figure D.3 ? Example for a tungsten filament lamp test for relays rated 10/100 A/250 V~/2...
Figure D.4 – Test circuit for inrush current loads (e.g. capacitive loads and simulated ...
Figure D.5 – Test circuit for inrush current loads (e.g. simulated fluorescent lamp loads...
Figure E.1 – Test arrangement
Figure J.1 – Schematic diagram of families of terminations
Figure L.1 – Ball pressure test apparatus
Tables
Table 1 – Reference values of influence quantities
Table 2 – Categories of protection
Table 3 – Type testing
Table 4 – Required relay data
Table 5 – Symbols
Table 6 – Examples for indication of rated values
Table 7 – Thermal classification
Table 8 ? Cross-sectional areas and lengths of conductors dependent on the current carrie...
Table 9 – Minimum values of insulation resistance
Table 10 – Dielectric strength – AC
Table 11 ? Dielectric strength ? DC
Table 12 ? Schematics for contact loading
Table 13 ? Provisions for the dimensioning of clearances and creepage distances
Table 14 ? Minimum clearances in air for insulation coordination
Table 15 – Material groups
Table 16 – Minimum creepage distances for equipment subject to long-term stresses
Table 17 ? Rated insulation voltage according to supply system voltage
Table 18 – Test conditions for test Tb
Table?B.1 – Verification of the making and breaking capacity (abnormal conditions)
Table?B.2 – Verification of the making and breaking capacity (normal conditions)
Table?B.3 – Electrical endurance test
Table C.1 – Characteristics of power sources for contact loads
Table C.2 ? Standard contact load characteristics
Table G.1 ? Rated impulse voltage for equipment energized directly from the low-voltage m...
  
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