IEC 60502-2 / NF C 33-220 12/20 (24) kV
Description
Description
Standards
-
ProductIEC 60502-2; NF C33-220; NF C33-220
Usage
IEC 60502-2 or NF C 33-220 cables are for public power distribution network 12/20 kV.
Design
The cable is made of not armoured 1 core. A semi conductive tape is layed beneath copper screen.
Insulation
The polyethylene cross-linking process ensures:
- Excellent heat resistance (90 °C)
- Good mechanical strength
- Excellent behaviour under short circuit conditions (250 °C)
- Extremely good resistance to low temperatures
Packaging
All drum types, lagged or not, up to a diameter of 3.00 m and a total weight of 12 t.
Characteristics
Characteristics
Construction characteristics
Construction characteristics
Conductor material
-
Conductor shape
Circular
Conductor flexibility
-
Material of the inner semi-conductor
Extruded
Insulation
XLPE (chemical)
Material of the external semi-conductor
Extruded strippable
Screen
Copper tape
Material used for longitudinal water tightness
None
Outer sheath
PVC
Sheath colour
-
Dimensional characteristics
Dimensional characteristics
Conductor cross-section
- mm²
Electrical characteristics
Electrical characteristics
Rated Voltage Uo/U (Um)
12/20 kV
Thermal resistivity of insulation
3.5 °K.m/W
Insulation Relative dielectric coefficient
2.5
Dielectric loss factor (tand maxi =)
40E-04
Mechanical characteristics
Mechanical characteristics
Mechanical resistance to impacts
Good
Cable flexibility
Rigid
Usage characteristics
Usage characteristics
Max. conductor temperature in service
90 °C
Short-circuit max. conductor temperature
250 °C
Weather resistance
-
Resources
Resources
Selling & delivery Information
Contact us for any other cable options.
Calculation assumptions (temperate countries):
- Air temperature : 30°C
- Soil temperature : 20°C
- Thermal resistivity of soil : 0.85 °K.m/W
- Burying depth : 0.80 m
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