Specifies requirements for the following type of reactors: shunt, current limiting, damping, tuning (filter), arc-suppression, smoothing reactors and earthing transformers, with the exception of small reactors with rating less than 2 kvar single-phase and 10 kvar three-phase. This Standard is technically identical with and has been reproduced from IEC 289:1988, with the addition of particular requirements for earth current-limiting neutral displacement reactors.