Norm

NEN-EN 50306-3:2018 Ontw. en

Railtoepassingen - Leidingen met bijzondere eigenschappen bij brand voor railvoertuigen - Speciale dunne isolatie - Deel 3: Afgeschermde eenaderige en meeraderige leidingen (paren, tripletten en stergroepen) met dunne buitenmantel

24,00 29,04 Incl BTW

Over deze norm

Status Ontwerp
Aantal pagina's 16
Commissie Draad en kabel voor elektrische sterkstroominstallaties
Gepubliceerd op 01-12-2018
Taal Engels
This document specifies requirements for, and constructions and dimensions of, multicore cables, rated voltage U0/ U = 300/500 V, of the following type: - Screened (0,5 mm2 to 2,5 mm2, number of cores from 1 to 8). 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. These cables are rated for occasional thermal stresses causing ageing equivalent to continuous operational life at a temperature of 90 °C. For standard cables this is determined by the acceptance test defined in EN 50305, using accelerated long-term (5 000 h) thermal ageing indicating a 110 °C/20 000 h temperature index. Should the customer require lifetime predictions this should be demonstrated based on the temperature index of the product as supplied by the manufacturer. The maximum temperature for short circuit conditions is 160 °C based on 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 Level 3 of EN 45545-1. prEN 50306-3:2018 has to be used in conjunction with prEN 50306-1:2018, General Requirements, and prEN 50306-2:2018, Single core cables.

Details

ICS-code 13.220.40
45.060.01
Nederlandse titel Railtoepassingen - Leidingen met bijzondere eigenschappen bij brand voor railvoertuigen - Speciale dunne isolatie - Deel 3: Afgeschermde eenaderige en meeraderige leidingen (paren, tripletten en stergroepen) met dunne buitenmantel
Engelse titel Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 3: Single core and multicore cables screened and thin wall sheathed
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