NHXMH

Halogen-free power and signal cable 300/ 500V, with improved properties under fire

APPLICATION

NHXH cables are suitable for fixed installation in dry and damp environment, on or under plaster, on cable trays, same as in walls and concrete. Not intended for direct laying in ground or water. For outdoor application can be laid in tubes, but in that case should be taken all precautionary measures necessary to prevent water penetration into the tubes. Suitable for electric installations with marked fire-fighting and function preserving requirements, for alarm systems, fire sensors, evacuation elevators and other supply systems in an emergency. Appropriate for application in all situations where people and material goods need to be protected in case of fire. Recommended for public buildings frequented by a lot of people, and for buildings of high material value, for industrial complexes, electric power plants, transformer stations, municipal facilities, hotels, shopping malls, hospitals, schools, airports, underground railways and similar. Important – NHXH cables should not be laid on common trays, but on fire-resistant trays which retain their geometry in case of fire.Keeping NHXH cables in the same position in case of fire, enables additional protection of cable conductivity, by means of the mineral layer discharged around the cable at increased temperature.

Construction

Conductors: Cu, class 1 or 2 according to EN 60228
Insulation: Cross-linked halogen-free polymer, type 2XI1
Bedding: Extruded halogen-free polymer or lapped glass fibres
Sheath: HFFR compound, type HM2

Tehnical characteristics

Voltage rating (Uo/U): 300/500 V
Min. temp. for cable laying: -5°C
Max. working temperature: 70°C
Max. short-circuit temperature: 160°C
Min. bending radius:single-core – 15D; multicore – 12D