Electrical supply track systems for luminaires1 Scope This International Standard applies to the following track systems with two or more poles for the connection of luminaires to the electrical supply consisting of, either a system with a rated voltage not exceeding 440 V between poles (live conductors) with provision for earthing (class I) and a rated current not exceeding 16 A per conductor, or a SELV system without provision for protective earthing (class III) and a rated current not

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