EN 60110-1:1998

FOREWORD
1 General
    1.1 Scope and object
    1.2 Normative references
    1.3 Definitions
    1.4 Service conditions
2 Quality requirements and tests
    2.1 Test requirements
    2.2 Classification of tests
    2.3 Capacitance measurement
    2.4 Measurement of the tangent of the loss angle
          of a capacitor
    2.5 Voltage test between terminals (routine test)
    2.6 Voltage test between terminals and container
    2.7 Test on internal discharge device
    2.8 Sealing test
    2.9 Thermal stability test
    2.10 Capacitor losses test
    2.11 Capacitance as a function of temperature
    2.12 Sealing test of cooling ducts, if any
    2.13 Self-healing test (for self-healing metallized
          dielectric capacitors)
    2.14 Short-circuit discharge test
    2.15 Ageing test (see IEC 60110-2)
    2.16 Destruction test (see IEC 60110-2)
    2.17 Disconnecting tests on internal fuses, if any
          (see IEC 60110-2)
3 Overloads
    3.1 Maximum permissible voltage
    3.2 Switching voltages
    3.3 Maximum permissible current
4 Safety requirements
    4.1 Creepage distances
    4.2 Discharge device
    4.3 Container connections
    4.4 Protection of the environment
    4.5 Additional safety requirements
5 Markings
    5.1 Marking of the capacitor unit
    5.2 Marking of the bank
6 Guide for installation and operation
    6.1 General
    6.2 Measures to obtain adequate cooling
    6.3 Choice of rated voltage, current and output
    6.4 Capacitors for frequent switching on load
    6.5 Choice of the highest voltage for equipment of
          a capacitor bank
    6.9 Shunt capacitors connected in series
    6.10 Series capacitors
    6.11 Connecting leads
    6.12 Live parts along water supply
    6.13 Post insulators
    6.14 Danger of freezing for water cooled capacitors
Annex A (normative) Methods of measuring the losses on
        air-cooled self-and forced-ventilated capacitors
Annex B (informative) Formulae for capacitors and
        installations
Annex C (informative) Bibliography

Is applicable both to indoor capacitor units and indoor capacitor banks intended to be used, particularly, for power factor correction in induction heating, melting, stirring or casting installations, and similar applications with controlled or adjustable a.c. voltage systems in a frequency range up to 50 kHz, and with a rated voltage not exceeding 3,6 kV.