IEC 60050-445:2010

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
Section 445-01 - Time Relay types
Section 445-02 - Conditions and operations
Section 445-03 - Energization
Section 445-04 - Output circuits
Section 445-05 - Times
Section 445-06 - Influence quantities, Errors and
                 accuracy
Section 445-07 - Electromagnetic compatibility
Index in Arabic, German, Spanish, Japanese, Polish,
Portuguese and Chinese

IEC 60050-445:2010 defines terms related to specified-time relays. This second edition cancels and replaces the first edition published in 2002 and constitutes a technical edition. This new edition has been revised in order to:
- incorporate terms more commonly used by industry;
- incorporate timing charts to help explain definitions involving a sequence of operations.
It has the status of a horizontal standard in accordance with IEC Guide 108.