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ČSN EN 50306-2-ed.2 (347662)
Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 2: Single core cables
Translate name
STANDARD published on 1.11.2020
The information about the standard:
Designation standards: ČSN EN 50306-2-ed.2
Classification mark: 347662
Catalog number: 510219
Publication date standards: 1.11.2020
SKU: NS-1008173
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Ignitability and burning behaviour of materials and productsCablesRailway rolling stock in general
Annotation of standard text ČSN EN 50306-2-ed.2 (347662):
ed.2 This document specifies requirements for, and constructions and dimensions of, single core cables, rated voltage U0 / 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 105 °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 125 °C/20 000 h temperature index. If the customer were to require lifetime predictions, this would 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 EN 45545-2. EN 50306-2:2020 is expected to be used in conjunction with EN 50360-1:2020, General requirements
Preview of the standard ČSN EN 50306-2-ed.2 (347662)
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