Norm

NEN-EN 50306-2:2018 Ontw. en

Railtoepassingen - Leidingen met bijzondere eigenschappen bij brand voor railvoertuigen - Speciale dunne isolatie - Deel 2: Eenaderige leidingen

24,00 29,04 Incl BTW

Over deze norm

Status Ontwerp
Aantal pagina's 17
Commissie Draad en kabel voor elektrische sterkstroominstallaties
Gepubliceerd op 01-12-2018
Taal Engels
This document specifies requirements for, and constructions and dimensions of, single core cables, rated voltage Uo / U = 300 /300 V, of the following type: Unscreened (0,5 mm2 to 2,5 mm2 single core) 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 (5000 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 and -2. prEN 50306-2:2018 should be used in conjunction with prEN 50306-1:2018, General requirements.

Details

ICS-code 13.220.40
45.060.01
Nederlandse titel Railtoepassingen - Leidingen met bijzondere eigenschappen bij brand voor railvoertuigen - Speciale dunne isolatie - Deel 2: Eenaderige leidingen
Engelse titel Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 2: Single core cables
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