Applies to the following types of reactors: shunt reactors, current-limiting reactors including neutral-earthing reactors, dampening reactors, tuning reactors, earthing transformers, arc-suppression reactors, with the exception of the following reactors: small reactors with a rating generally less than 2 kvar single-phase and 10 kvar three-phase, reactors for special purposes such as high-frequency line traps or reactors mounted on rolling stock.