24x2.5

Description

Description

Standards

  • International
    IEC 60331-21 ; IEC 60332-3-24 Cat.C; IEC 60502-1

Application


Refineries, Mines, Hotels, Schools, Tunnels, High construction, Hospitals, Power plants, Data processing centers, Business centers where there is concentration of sensitive to fire

 

Design

 

  1. Conductor
    Stranded bare copper class 2 acc. to IEC 60228
     
  2. Fire Barrier
    Mica Glass tape
     
  3. Insulation
    Cross Linked Polyethylene "XLPE"
     
  4. Inner Sheath or Bedding
    Lapped bedding or extruded HFFR
     
  5. Armour
    Galvanized Steel Wire Armour "SWA"
  1. Outer Sheath 
    Halogen Free Flame retardant "HFFR".

      Options :

             - Flame retardant : "CAT A, CAT B, CAT C" to IEC60332 or equivalent.

             - Ozone resistant.

             - Oil resistant.

             - Anti termite.

 

 

Fire test :

As per IEC 60331-21 which is 750 Deg for 90 mins.

 

 

 Installation Conditions:

  1. Air Temperature : 30 Deg.
  2. Ground Temperature: 20 Deg.
  3. Soil Thermal Resistivity : 2.5 k.m/w
  4. Depth of lay : 0.7 m

 All dimensions have tolerance +- 7 %

Marking

no. of cores x conductor sizes mm2 Cu / Mica / XLPE / SWA / HFFR 600/1000 V IEC 60502-1   IEC 60331-21  MADE IN QATAR QICC-Nexans Year Meters

Custom marking available

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Copper
Conductor shape
Circular
Insulation
XLPE (Cross-linked Polyethylene)
Inner sheath
Halogen free flame retardant
Armour type
Galvanized steel wires
Outer sheath
HFFR (Halogene Free Flame Retardant)
Colour
Black
Halogen free
Yes
Conductor flexibility
Stranded class 2

Dimensional characteristics

Dimensional characteristics

Number of cores
24
Conductor cross-section
2.5 mm²
Approximate weight
1750 kg/km
Ground conductor cross-section
- mm²
Nominal outer diameter
31.0 mm

Electrical characteristics

Electrical characteristics

Rated Voltage Uo/U (Um)
0,6/1 kV
Max. DC resistance of the conductor at 20°C
7.41 Ohm/km
Permissible current rating in open air
33 A
Permissible current rating when buried
30 A
Voltage drop, 3 conductors
14.0 V/A.km
Voltage drop, single phase
- V/A.km

Mechanical characteristics

Mechanical characteristics

Cable flexibility
-

Usage characteristics

Usage characteristics

Max. conductor temperature in service
90 °C
Short-circuit max. conductor temperature
250 °C
Bending factor when laying
10 (xD)
Bending factor when installed
20 (xD)
Smoke density
IEC 61034
Gases corrosivity
IEC 60754-2
Fire resistant
IEC 60331-21

Resources

Resources

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