SIST EN 50306-3:2003
(Main)Railway applications - Railway rolling stock cables having special fire performance - Thin wall -- Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathed
Railway applications - Railway rolling stock cables having special fire performance - Thin wall -- Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathed
EN 50306-3 specifies requirements for, and constructions and dimensions of, multicore cables, rated 300 V to earth, of the following type:
Screened (0,5 mm2 to 2,5 mm2, number of cores from 1 to 4)
All cables have stranded tinned copper conductors, and thin wall thickness, halogen-free, insulation and sheath. They are for use in railway rolling stock as fixed wiring, or wiring where limited flexing in operation is encountered. The requirements provide for a continuous operational life at temperatures of 90 °C or 105 °C dependent upon the sheath system type.
NOTE 1 For cables with type S2 sheath a temperature of 105 °C is only allowed when specifically tested for the higher rating (i.e. by long-term thermal endurance testing to demonstrate a lifetime of at least 20 000 h at 125 °C).
The maximum temperature for short-circuit conditions is 160 °C based on a duration of 5 s.
Under fire conditions the cables exhibit special performance characteristics in respect of maximum permissible flame propagation (flame spread) and maximum permissible emission of smoke and toxic gases. These requirements are specified to permit the cables to satisfy Hazard Levels 2, 3 or 4 of EN 45545-1 1).
NOTE 2 Requirements for the emission of smoke and gases are not specified for cables used for Hazard Level 1 of EN 45545-1.
NOTE 3 EN 45545-1 is still under development and should be consulted.
EN 50306-3 should be used in conjunction with EN 50306-1, General Requirements, and EN 50306 2, Single core cables.
Bahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Reduzierte Isolierwanddicken -- Teil 3: Ein- und mehradrige Kabel und Leitungen (Paare, Dreier, Vierer) geschirmt mit reduzierten Mantelwanddicken
Applications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Isolation mince -- Partie 3: Conducteurs et câbles blindés (paires, tierces et quartes) avec gaine d'épaisseur mince
Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathed
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 3: Single core and multicore cables (pairs, triples and quads) screened and thin wall sheathedBahnanwendungen - Kabel und Leitungen für Schienenfahrzeuge mit verbessertem Verhalten im Brandfall - Reduzierte Isolierwanddicken -- Teil 3: Ein- und mehradrige Kabel und Leitungen (Paare, Dreier, Vierer) geschirmt mit reduzierten MantelwanddickenApplications ferroviaires - Câbles pour matériel roulant ferroviaire ayant des performances particulières de comportement au feu - Isolation mince -- Partie 3: Conducteurs et câbles blindés (paires, tierces et quartes) avec gaine d'épaisseur minceRailway applications - Railway rolling stock cables having special fire performa
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.