74C068 SH C 500V 7x1 Cu2 K3 EG Ar

Description

Description

Standards

  • Product
    IEC 60228
  • Test
    IEC 60332-3-23; IEC 60754-1; IEC 60754-2; IEC 61034-2; NF C32-070/C1; NF C32-070/C1

Applications

These control cables alllow connection to a variety of industrial equipement from control room. Many of them require anti-inductive screen (EMI). They are well adapted to underground use.

Design

Conductor:
- Stranded plain copper (class 2)
Insulation:
- Zero halogen (SH), cross-linked
Assembling:
- Polyester tape (optional)
Overall screen:
- Copper wire braid (CWB) R ≥ 80%
Inner sheath:
- Low smoke, zero halogen (LSZH)
Armour:
- Galvanized steel braid (Tz) ≤ 4 conductors
- Steel tapes (Ar) > 4 conductors
Outer sheath:
- Low smoke, zero halogen (LSZH)
- Colour: grey

Core identification

Black cores printed with white numbers
Optional: with Y/G core

Marking

NEXANS 279  Nber of cores & cross-section Cu EG ARME CST 74 C 068 K3 SH 0.3/0.5 (0.6) kV YYYY  Manufacturing number  + metric marking

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Conductor material
Plain copper
Type of conductor
Stranded, class 2
Insulation
Halogen-free
Screen
Bare copper braid
Inner sheath
LSZH
Armour type
Steel tapes
Outer sheath
LSZH
Halogen free
IEC 60754-1; IEC 60754-2
With Green/Yellow core
No

Dimensional characteristics

Dimensional characteristics

Conductor cross-section
1 mm²
Number of cores
7
Conductor diameter
1.3 mm
Diameter over insulation
2.5 mm
Diameter over screen
8.8 mm
Diameter over inner sheath
11 mm
Diameter over armour
12.0 mm
Minimum outer diameter
15.2 mm
Maximum outer diameter
17.3 mm
Approximate weight
438 kg/km

Electrical characteristics

Electrical characteristics

Max. DC resistance of the conductor at 20°C
18.1 Ohm/km
Maximum DC resistance of the conductor at 90°C
23.000 Ohm/km
Reactance at 50 Hz
0.1 Ohm/km
Short Circuit Current 0,3 s Max
0.26 kA
Short Circuit Current 1 s Max
0.14 kA
Impedance at 50 Hz
18.1 Ohm
Voltage Drop
36.9 V/A.km
Calorific Power
3.1 MJ/m

Mechanical characteristics

Mechanical characteristics

Mechanical resistance to impacts
Good

Usage characteristics

Usage characteristics

Operating temperature, range
-20 ... 60 °C
Smoke density
-
Fire retardant
NF C 32070 C1; IEC 60332-3-24 (cat.B)
Electro magnetic interference resistance
Yes
U.V resistance
Yes
Life cycle 60years
Yes
Max. conductor temperature in service
90 °C
Nuclear Classification
Class 1 E Non LOCA/K3

Resources

Resources

Documentation

xlsx — 0 B

Selling & delivery Information

Minimum bending radius:

10 x outer diameter
To be doubled during laying operations

Marking

NEXANS 279  Nber of cores & cross-section Cu EG ARME CST 74 C 068 K3 SH 0.3/0.5 (0.6) kV YYYY  Manufacturing number  + metric marking

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