Japanese Standards Association

Low-voltage power capacitors
 N JIS C 4901

Annotation

This Standard specifies phase advance self-healing capacitors for indoor use (hereafter referred to as "capacitors"), intended to be used for the purpose of power-factor correction in a circuit at an a.c. voltage not exceeding 600 V at power frequency by being connected in parallel to the load.

Annex JA describes the matters related to the series reactors for capacitors (kvar product) used as a receiving facility for reference.

Annex JB gives guidance for installation, maintenance and operation of capacitors for the purpose of reference.

NOTE: The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows.

IEC 60831-1: 2002 Shunt power capacitors of the self-healing type for a. c. systems having a rated voltage up to and including 1 000 V-Part 1: General- Performance, testing and rating-Safety requirements-Guide for installation and operation

IEC 60831-2: 1995 Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V-Part 2: Ageing test, self-healing test and destruction test (Overall evaluation: MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards andJIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/ IEC Guide 21-1.

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