BS EN 50264-3-1:2008

Introduction
1 Scope
2 Normative references
3 Definitions
4 Rated voltage
5 Marking and identification
   5.1 Marking of cable
   5.2 Core identification
   5.3 Sheath
6 Construction of cables
   6.1 General
   6.2 Conductor
   6.3 Conductor screening
   6.4 Separator
   6.5 Insulation system
   6.6 Sheath
   6.7 Constructional components
7 Tests
   7.1 Definitions relating to tests
   7.2 Conductor resistance
   7.3 Voltage test
   7.4 Insulation resistance
   7.5 Dielectric strength
   7.6 Spark test
   7.7 DC stability
   7.8 Surface resistance
   7.9 Ageing test
   7.10 Hot set test
   7.11 Compatibility
   7.12 Water absorption test on sheath
   7.13 Ozone resistance
   7.14 Mineral oil resistance
   7.15 Fuel resistance
   7.16 Acid and alkali resistance
   7.17 Bending test at low temperature (cores and cables
        with OD <= 12,5 mm)
   7.18 Cold elongation test (cables with OD > 12,5 mm)
   7.19 Impact test at low temperature
   7.20 Reaction to fire - Cables
   7.21 Reaction to fire - Components
Annex A (normative) - Code designation
Bibliography

Defines requirements for, and constructions and dimensions of, single core cables of the following types and voltage ratings: - 0,6/1 kV unscreened, unsheathed (1 mm[2] to 400 mm[2]); - 1,8/3 kV unscreened, unsheathed (1,5 mm[2] to 400 mm[2]); - 1,8/3 kV unscreened, sheathed (1,5 mm[2] to 400 mm[2]); - 3,6/6 kV unscreened, sheathed (2,5 mm[2] to 400 mm[2]).

EN 50264-3-1 specifies requirements for, and constructions and dimensions of, single core cables of the following types and voltage ratings:

• 0,6/1 kV unscreened, unsheathed (1 mm2 to 400 mm2);

• 1,8/3 kV unscreened, unsheathed (1,5 mm2 to 400 mm2);

• 1,8/3 kV unscreened, sheathed (1,5 mm2 to 400 mm2);

• 3,6/6 kV unscreened, sheathed (2,5 mm2 to 400 mm2).

All cables have class 5 tinned copper conductors to EN 60228, halogen-free insulation and halogen-free sheath. They are for use in railway rolling stock as fixed wiring, or wiring where limited flexing in operation is ncountered. The requirements provide for a continuous conductor temperature not exceeding 90° C and a maximum temperature for short circuit conditions of 200 °C based on a 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.

EN 50264-3-1 should be read in conjunction with Part 1 “General requirements”.