NX400 2x70 mm2 BS 7846 - F2

Description

Description

Standards

  • Product
    BS 7846
  • Test
    BS 6387 CWZ; EN 50200

Application:

Rafineries, mines, hotels, schools, tunnels, high constructions, hospitals, power plants, data processing centers, business centers where there is a concentration of sensitive to fire

 

Construction:

  1. Conductor: Copper
  2. Fire barrier: Mica tape
  3. Insulation: XLPE
  4. Bedding: LSZH
  5. Armour: Single layer of galvanized steel wires
  6. Outer sheath: LSZH

 

NX400 cables should meet the F2 requirements according to BS 6387

  • Resistance to fire alone, Protocol C
  • Resistance to fire with water, Protocol W
  • Resistance to fire with mechanical shock, Protocol Z

Marking:

ELECTRIC CABLE  600/1000 V  BS 7846-F2  NEXANS i  NX400  Number of cores x cross section  BASEC  LPCB 946a/01  "YEAR"  

**EN 50200 PH 120 is also applicable for cross sections 1.5 to 6 mm2.

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Copper
Armour type
Single layer of galvanized steel wires
Outer sheath
HFFR (Halogen Free Flame Retardant)
Insulation
XLPE + Mica tape
Sheath colour
Black
Conductor flexibility
Class 2
Conductor shape
Sector-shaped stranded (SM)
Core identification
Brown, Blue
Halogen free
Yes

Dimensional characteristics

Dimensional characteristics

Number of cores
2
Approximate weight
2250 kg/km
Average insulation thickness
- mm
Conductor cross-section
70 mm²
Conductor diameter
- mm
Nominal armour wire diameter
1.6 mm
Nominal outer diameter
27.9 mm
Nominal outer sheath thickness
- mm

Electrical characteristics

Electrical characteristics

Rated Voltage Uo/U (Um)
0,6/1 kV
Max. DC resistance of the conductor at 20°C
0.268 Ohm/km
Permissible current rating clipped direct
279 A
Permissible current rating in open air
291 A
Permissible current rating when buried
251 A
Permissible short circuit current conductor 1s
10 kA
Voltage Drop
0.69 V/A.km

Usage characteristics

Usage characteristics

Operating temperature, range
-20 ... 60 °C
Max. conductor temperature in service
90 °C
Fire resistant
BS 6387 CWZ
Smoke density
IEC 61034-1-2
Gases corrosivity
IEC 60754-2
Bending factor when laying
8 (xD)
Short-circuit max. conductor temperature
250 °C
Fire retardant
IEC 60332-3-24 (cat C)

Resources

Resources

Selling & delivery Information

Marking
ELECTRIC CABLE 600/1000 V BS 7846-F2 NEXANS i NX400 Number of cores x cross section BASEC LPCB 946a/01 "YEAR"

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