IEC 60570-2003 pdf – Electrical supply track systems for luminaires.1 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 with a rated voltage not exceeding 25 V without provision for earthing (class III) and a rated current not exceeding 25 A per conductor, or – a combination of the two systems mentioned above (mixed supply system) for the connection of both mains voltage luminaires (class I or II) and SELV supplied luminaires (class III) simultaneously, but in different sector openings (mains or SELV). The track systems may also provide for the mechanical support of the luminaires. It applies to track systems designed for ordinary interior use for mounting on, or flush with, or suspended from walls and ceilings. These track systems are not intended for locations where special conditions prevail as in ships, vehicles and the like and in hazardous locations, for example, where explosions are liable to occur. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60417-2, Graphical symbols for use on equipment – Part 2: Symbol originals IEC 60598-1:1999, Luminaires – Part 1: General requirements and tests IEC 61032:1997, Protection of persons and equipment by enclosures – Probes for verification 3 Terms and definitions For the purposes of this standard, the definitions of section one of IEC 60598-1 apply, together with the following definitions. NOTE The use of the term luminaire (see IEC 60598-1) hereinafter also includes components of the luminaire track system.
3.2 track generally linear assembly of conductors within a housing providing the electrical connection and in most instances mechanical support of luminaires NOTE Luminaires can be positioned or repositioned along the length of track in a simple manner (that is, without the use of tools). 3.3 track* coupler component enabling electrical or mechanical connection to be made between tracks, but electrically only on the same sector opening (mains voltage or SELV) 3.4 track* supply connector component used for the electrical connection of a supply to the track system, but always operating on one sector opening only NOTE 1 The function of a coupler and a track supply connector may be combined. NOTE 2 For the SELV sector, the track supply connector may incorporate a SELV convertor or safety isolating transformer supplied directly from the mains voltage sector. 3.5 luminaire supply connector component for the electrical connection of a luminaire to the track. A connector does not provide mechanical connection of a luminaire to the track The electrical connection shall operate on one sector only (mains or SELV) 3.6 track * adaptor component used for the electrical and mechanical connection of a luminaire to the track, but electrically and mechanically only on the same sector opening (mains voltage or SELV) NOTE An adaptor may incorporate a switch or a fuse. 3.7 track* suspension device component used for the mechanical connection of the track system to the supporting surface 3.8 luminaire suspension device component used for the mechanical connection of a luminaire to the track
5.3 Unless otherwise specified, the sample is tested as delivered and under the most unfavourable conditions of use taking into account the manufacturer’s instructions, at an ambient temperature of between 10 °C and 30 °C. The minimum test sample of a class I or a class III track shall include the following items. For a mixed supply system the minimum sample quantities stated are required for both class I and class III sectors: a) where a track system provides for interconnection between track lengths, at least 3 sections of track comprising a total length when assembled together of not less than 2,4 m and including 1 section of maximum length as indicated in the manufacturer’s literature. Where interconnection is not provided for, only 1 track section of maximum length is required; b) 1 track supply connector; c) 1 end cover (if required); d) 1 coupler per length of track supplied (if applicable) (minimum of 3); e) 1 adaptor per length of track supplied (minimum of 3); f) 1 luminaire supply connector per length of track supplied (if applicable) (minimum of 3); g) the necessary suspension devices and any other components as specified by the manufacturer in his installation instructions; h) a typical luminaire representing the most unfavourable combination from a testing point of view for the purpose of the test of clause 11; i) additionally with a class III test sample, one selection of track of each type of class I track made by the same manufacturer. NOTE Item i) is required for the tests of 8.1.1 when testing a class III track.