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dnaSRPS EN 50306-3:2018

Фаза: 50.60 - Завршетак поступка одобравања дефинитивног текста нацрта српског стандарда
Почетак: 2019-11-22
Крај: 2020-01-22

Веза са међународним стандардима
Ovaj standard je identičan sa: FprEN 50306-3 CLC/TC 20

Наслов на српском језику

Primene na železnici — Energetski i upravljački kablovi sa posebnim karakteristikama koje se odnose na požar za železnička vozna sredstva — Tankoslojni — Deo 3: Jednožilni i višežilni kablovi, ekranizovani i sa tankoslojnim plaštom

Наслов на енглеском језику

Railway applications - Railway rolling stock cables having special fire performance - Thin wall - Part 3: Single core and multicore cables screened and thin wall sheathed

Апстракт на српском језику

Ovaj standard specificira zahteve, i za izradu i za mere višežilnih kablova, za naznačeni napon od 300 V prema zemlji, sledećih tipova: ekranizovani od 0,5 mm2 do 2,5 mm2, sa brojem žila od 1 do 8.

Апстракт на енглеском језику

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. 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. FprEN 50306 3:2019 is expected to be used in conjunction with FprEN 50306 1:2019, General Requirements, and FprEN 50306 2:2019, Single core cables.

Комисија за стандарде


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