IEC 61481-2:2014

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Tests
6 Conformity assessment of phase comparators
  having completed the production phase
7 Modifications
Annex A (normative) - Instructions for use
Annex B (normative) - Suitable for live working; double
        triangle (IEC 60417 - 5216 (2002-10))
Annex C (normative) - Chronology of type tests
Annex D (normative) - Classification of defects and tests
        to be allocated
Annex E (informative) - Information and guidelines on the
        use of the limit mark and of a contact electrode
        extension
Annex F (informative) - Rationale for the classification
        of defects
Annex G (informative) - In-service care
Bibliography

IEC 61481-2:2014 is applicable to portable phase comparators of resistive type to be used on electrical systems for voltages from 1 kV a.c. to 36 kV a.c. and frequencies of 50 Hz and/or 60 Hz. This standard is applicable to phase comparators of resistive type used in contact with the bare conductive parts to be compared as a complete device including its insulating element or as a separate device, adaptable to an insulating stick which, as a separate tool, is not covered by this standard. A device that is designed to provide other functions than phase comparison is a different device and is not covered by this standard. For example a device designed to be also used as a voltage detector is not covered by this standard. This first edition, together with the first edition of IEC 61481-1, cancels and replaces the first edition of IEC 61481 published in 2001, Amendment 1:2002 and Amendment 2:2004. This edition constitutes a technical revision which includes the following major changes:
- split of the standard in two parts;
- review of the requirements for indication;
- elimination of class C (+/- 110°);
- introduction of a requirement for a new marking "LU" for limited use;
- increase of the specified range of voltage fluctuation in a network for clear indication;
- and revision of the existing annexes.