Introduction
Le N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC) 0.6/1 (1.2) câble kV is a robust low-voltage power cable designed for applications requiring high mechanical protection, moisture resistance, and long-term electrical reliability. With its multi-layer construction and armoured design, this cable is widely used in installations industrielles, power distribution networks, installations souterraines, and infrastructure projects.
La désignation N2XKFGbY follows European and IEC-based cable naming conventions and represents a cable system that combines copper conductors, Isolation XLPE, a lead sheath (LS), steel flat armour (AFFA), and multiple PVC protective layers. The rated voltage of 0.6/1 (1.2) kV makes it suitable for low-voltage power transmission under demanding environmental and mechanical conditions.
Meaning of N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC)
The structure of the N2XKFGbY cable can be clearly understood by breaking down its material designation:
- UC – Copper conductor
- XLPE – Cross-linked polyethylene insulation
- PVC – Polyvinyl chloride inner sheath and bedding layers
- LS – Lead Sheath
- PVC – Separator / bedding sheath over the lead sheath
- AFFA – Steel Flat Armour
- PVC – PVC outer sheath
Ensemble, this construction delivers a cable with excellent electrical performance, strong mechanical protection, and superior resistance to moisture and aggressive environments.
Construction générale des câbles
Un typique N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC) 0.6/1 (1.2) câble kV consists of the following layers from inside to outside:
- Conducteur en cuivre (IEC compliant)
- Isolation XLPE
- Laid-up insulated cores with fillers
- PVC inner sheath
- Gaine de plomb (LS)
- Séparateur PVC / literie
- Armure plate en acier (AFFA)
- PVC outer sheath
Each layer is carefully engineered to serve a specific electrical or mechanical function.
Conducteur en cuivre (UC)
Le conducteur est composé de high-purity annealed electrolytic copper, offering excellent conductivity and mechanical stability. All conductors comply with CEI 60228, typically manufactured as:
- Classe 1 solid conductors (for smaller cross-sections)
- Classe 2 stranded conductors (for power applications)
Les conducteurs en cuivre assurent:
- Low electrical resistance
- Capacité de transport de courant élevée
- Stable performance under thermal stress
- Long operational life
Isolation XLPE
Each copper conductor is insulated with polyéthylène réticulé (XLPE), a material widely recognized for its superior electrical and thermal performance.
Key properties of XLPE insulation include:
- Continuous operating temperature up to 90°C
- Short-circuit temperature up to 250°C
- Rigidité diélectrique élevée
- Excellente résistance à l'humidité, produits chimiques, et le vieillissement
XLPE insulation ensures safe and reliable power transmission even in harsh operating environments.
PVC Inner Sheath
After core assembly, un PVC inner sheath is applied to bind the insulated conductors together and provide a smooth surface for the application of the lead sheath.
Functions of the PVC inner sheath:
- Maintains cable geometry
- Protects insulated cores
- Improves mechanical stability
- Enhances overall durability
Gaine de plomb (LS)
Le Gaine de plomb (LS) is one of the most critical features of the N2XKFGbY cable.
Functions of the Lead Sheath
- Acts as a complete moisture barrier
- Provides excellent resistance to oils, produits chimiques, et substances corrosives
- Prevents water ingress in underground installations
- Enhances electromagnetic shielding
En raison de ces propriétés, lead-sheathed cables are widely used in underground power networks, industrial facilities, tunnels, and areas with high humidity or chemical exposure.
PVC Separator / Bedding Sheath
A PVC separator sheath is applied over the lead sheath to:
- Protect the lead sheath from mechanical damage
- Provide a smooth bedding for the armour layer
- Improve overall cable flexibility
This layer also contributes to the long-term stability of the cable under mechanical stress.
Armure plate en acier (AFFA)
Le Armure plate en acier (AFFA) provides strong mechanical protection against external forces.
Advantages of SFA include:
- Haute résistance aux chocs et à l'écrasement
- Excellent tensile strength
- Convient pour un enterrement direct
- Protection contre les dommages causés par les rongeurs
Steel flat armour makes the cable suitable for heavy-duty industrial and infrastructure installations.
PVC Outer Sheath
The final layer is a durable PVC outer sheath, designed to protect the cable from environmental influences.
Key features:
- Resistance to abrasion and mechanical wear
- Protection against UV radiation and weather
- Additional moisture resistance
- Easy identification and handling
Rated Voltage: 0.6/1 (1.2) kV
The rated voltage 0.6/1 (1.2) kV indicates:
- 0.6 kV between conductor and earth
- 1.0 kV between conductors
- 1.2 kV maximum system voltage
This rating makes the cable suitable for standard low-voltage power distribution systems.
IEC Conductor Configuration – 1 Noyau à 5 Noyaux (0.5 mm² à 300 mm²)
IEC Power Cable Conductor Configuration
| Section transversale nominale (mm²) | Classe de chef d'orchestre | Non. de noyaux |
|---|---|---|
| 0.5 | Classe 1 | 1 core |
| 0.5 | Classe 1 | 2 cores |
| 0.5 | Classe 1 | 3 cores |
| 0.5 | Classe 1 | 4 cores |
| 0.5 | Classe 1 | 5 cores |
| 0.75 | Classe 1 | 1–5 cores |
| 1.0 | Classe 1 | 1–5 cores |
| 1.5 | Classe 2 | 1–5 cores |
| 2.5 | Classe 2 | 1–5 cores |
| 4 | Classe 2 | 1–5 cores |
| 6 | Classe 2 | 1–5 cores |
| 10 | Classe 2 | 1–5 cores |
| 16 | Classe 2 | 1–5 cores |
| 25 | Classe 2 | 1–5 cores |
| 35 | Classe 2 | 1–5 cores |
| 50 | Classe 2 | 1–5 cores |
| 70 | Classe 2 | 1–5 cores |
| 95 | Classe 2 | 1–5 cores |
| 120 | Classe 2 | 1–5 cores |
| 150 | Classe 2 | 1–5 cores |
| 185 | Classe 2 | 1–5 cores |
| 240 | Classe 2 | 1–5 cores |
| 300 | Classe 2 | 1–5 cores |
IEC Conductor Configuration – 1 Noyau à 36 Noyaux (0.5 mm² à 10 mm²)
IEC Multi-Core Cable Configuration
| Section transversale nominale (mm²) | Classe de chef d'orchestre | Non. de noyaux |
|---|---|---|
| 0.5 | Classe 1 | 1–36 cores |
| 0.75 | Classe 1 | 1–36 cores |
| 1.0 | Classe 1 | 1–36 cores |
| 1.5 | Classe 2 | 1–36 cores |
| 2.5 | Classe 2 | 1–36 cores |
| 4 | Classe 2 | 1–36 cores |
| 6 | Classe 2 | 1–36 cores |
| 10 | Classe 2 | 1–36 cores |
These configurations are commonly used for câbles de contrôle, auxiliary power circuits, and industrial distribution systems.
Applications typiques
Le N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC) 0.6/1 (1.2) câble kV is widely applied in:
- Centrales électriques et sous-stations
- Industrial manufacturing facilities
- Underground power distribution
- Tunnels and transportation infrastructure
- Huile, gas, and petrochemical plants
- Utilities and public infrastructure projects
Avantages clés
- Excellent electrical performance
- Forte protection mécanique
- Résistance supérieure à l’humidité et aux produits chimiques
- Longue durée de vie
- IEC-compliant conductor configurations
- Suitable for harsh and underground environments
N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC) 0.6/1 (1.2) câble kV
Le N2XKFGbY (CU/XLPE/PVC/LS/PVC/SFWA/PVC) 0.6/1 (1.2) câble kV is a proven solution for low-voltage power transmission where force mécanique, protection environnementale, et fiabilité à long terme are essential. With its lead sheath and steel flat armour design, this cable meets the demands of modern industrial and infrastructure applications.