IEC 60871-1:2014

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Quality requirements and tests
6 Classification of tests
7 Capacitance measurement (routine test)
8 Measurement of the tangent of the loss angle
   (tan delta)
   of the capacitor (routine test)
9 Voltage test between terminals (routine test)
10 AC voltage test between terminals and container
   (routine test)
11 Test of internal discharge device (routine test)
12 Sealing test (routine test)
13 Thermal stability test (type test)
14 Measurement of the tangent of the loss angle
   (tan delta) of the capacitor at elevated temperature
   (type test)
15 Voltage tests between terminals and container
   (type tests)
16 Overvoltage test (type test)
17 Short-circuit discharge test (type test)
18 Insulation levels
19 Overloads - Maximum permissible voltage
20 Overloads - Maximum permissible current
21 Safety requirements for discharge devices
22 Safety requirements for container connections
23 Safety requirements for protection of the environment
24 Other safety requirements
25 Markings of the capacitor unit
27 Guide for installation and operation
Annex A (normative) - Precautions to be taken to avoid
        pollution of the environment by polychlorinated
        biphenyls
Annex B (normative) - Additional definitions, requirements
        and tests for power filter capacitors
Annex C (normative) - Test requirements and application
        guide for external fuses and units to be
        externally fused
Annex D (informative) - Formulae for capacitors and
        installations
Annex E (informative) - Capacitor bank fusing and unit
        arrangement
Bibliography

IEC 60871-1:2014 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and frequencies of 15 Hz to 60 Hz. This part of IEC 60871 also applies to capacitors intended for use in power filter circuits. The object of this part of IEC 60871 is as follows:
- to formulate uniform rules regarding the performance and rating of units and banks, and the testing of units; to formulate specific safety rules;
- to provide a guide for installation and operation. This fourth edition cancels and replaces the third edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- the overvoltage cycling test has been moved to this standard from the IEC 60871-2;
- the ranges of the standardized values of the highest voltage for equipment have been modified;
- for installations installed on altitudes above 1 000 m a correction factor to all insulation requirements has been introduced;
- new standard insulation tables have been defined. Keywords: capacitor units and capacitor banks, power filter circuits