National foreword
Cooperating organizations
1 General
1.1 Scope
1.2 Object
2 Terms and definitions
2.1 Fundamental terms
2.2 Terms relating to energization (input and
auxiliary)
2.3 Terms relating to conditions and operation of a
relay
2.4 Terms relating to influencing quantities or factors
2.5 Terms relating to contact circuits
2.6 Terms relating to times
2.7 Terms relating to accuracy, applicable to a given
specified-time relay
3 Recommended values
3.1 Energizing quantities
3.2 Contact circuits
3.3 Specified times
3.4 Influencing quantities and factors
3.5 Recommended values of intermittent periodic duty
parameters
3.6 Recommended values of the dielectric test voltages
3.7 Recommended values for surge voltage tests
4 Permissible maximum temperatures
4.1 Permissible maximum temperatures of relay parts
4.2 Conditions for assessing maximum temperatures
5 Accuracy of the specified times
5.1 General
5.2 Methods of determining the errors relating to the
specified time
6 Mechanical durability
7 Contact performance
8 Rated burden (power)
9 Clearance and creepage distances
10 Test methods
10.1 General test conditions (under consideration)
10.2 Energizing quantities
10.3 Dielectric tests
10.4 Surge voltage tests
10.5 Temperature rise of energizing circuits
10.6 Accuracy
10.7 Mechanical durability
10.8 Contact performance
10.9 Rated burden (power)
10.10 Insulation resistance
10.11 Environmental conditions (under consideration)
11 Data and marking
11.1 General
11.2 Requirements for marking
Appendix A Explanatory notes
Appendix B Notes concerning the accuracy of relays
Appendix C Requirements relating to the insulation of
electrical relays and appropriate insulating
tests