European Committee for Electrotechnical Standardization

Railway applications - Railway rolling stock high temperature power cables having special fire performance - Part 2: Single core silicone rubber insulated cables for 120 °C or 150 °C - Incorporates Amendment A1: 2013
 N EN 50382-2

Annotation

Part 2 of EN 50382 specifies requirements for, and constructions and dimensions of, single core cables of the following types and voltage ratings:

– 1,8/3 kV unscreened, unsheathed with or without textile braid (1,5 mm to 400 mm );

– 1,8/3 kV unscreened, sheathed (1,5 mm to 400 mm );

– 3,6/6 kV unscreened, unsheathed with or without textile braid (2,5 mm to 400 mm );

– 3,6/6 kV unscreened, sheathed (2,5 mm to 400 mm ).

All cables have class 5 or class 6 tinned or plain copper conductors to EN 60228, halogen-free insulation and where applicable halogen-free 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 conductor temperature not exceeding 120 °C or 150 °C and a maximum temperature for short circuit conditions of either 250 °C or 350 °C based on a duration of 5 s. When the insulating compounds and sheath specified in this standard which are thermally capable of operating at 150 °C are used with tinned conductors, the maximum operating temperature is limited to 120 °C and, for the same technical reason, the maximum short circuit temperature is limited to 250 °C. The choice of sheath may also limit the maximum operating temperature to 120 °C.

The temperature limit for maximum operating of 120 °C for tinned conductors may be increased to 150 °C agreement between the purchaser and the manufacturer