Medium Voltage Aluminium XLPE Cable RHZ1 AL / OL / 2OL (6/10kV–18/30kV) LSZH Power Distribution Cable
Product Overview
The RHZ1 AL / OL / 2OL Medium Voltage Cable is an aluminium conductor power cable with XLPE insulation, specifically engineered for medium voltage power transmission and distribution networks. It is designed as a halogen-free, low smoke, and non-flame propagating cable, making it highly suitable for fixed installations where fire safety and environmental performance are critical.
This cable is widely applied in distribution grids, industrial facilities, urban infrastructure, tunnels, and street lighting systems, ensuring reliable and safe operation under demanding conditions.
Standards and Compliance
IEC 60502-2
UNE-HD 620-10E (type 10E-5)
CPR (Construction Products Regulation): Cca-s1b,d2,a1
AENOR certification
Electrical Performance
Rated voltage levels:
6/10 (12) kV
12/20 (24) kV
18/30 (36) kV
Designed for medium voltage networks for efficient energy transmission and distribution
Thermal Performance
Maximum conductor temperature: 90°C
Maximum short-circuit temperature: 250°C (max. 5 seconds)
Minimum service temperature: -15°C
Fire Performance
Flame non-propagation: EN 60332-1 / IEC 60332-1
Fire non-propagation: EN 50399
Halogen-free: EN 60754-1 / IEC 60754-1
Low corrosive gas emission: EN 60754-2 / IEC 60754-2
Low smoke emission: EN 61034 (light transmittance > 60%)
CPR classification: Cca-s1b,d2,a1
Mechanical Performance
Minimum bending radius (fixed): 15 × cable diameter
Minimum bending radius (installation): 20 × cable diameter
High resistance to:
Abrasion
Tearing
Environmental Performance
UV resistant (UNE 211605)
Water resistance: AD6 (waves)
Suitable for harsh outdoor and industrial environments
Installation Conditions
Open air
Buried installations
Installed in conduits
Cable Construction
Conductor
Aluminium conductor, Class 2 (EN 60228 / IEC 60228)
Optional longitudinal water-blocking (2OL type)
Conductor Screen
Thermosetting semiconductive material
Insulation
XLPE insulation (type DIX3)
Triple extrusion process in nitrogen atmosphere
Insulation Screen
Strippable semiconductive layer
Metallic Screen
Copper wire and copper tape screen
Minimum cross-section: 16 mm²
Longitudinal Water Tightness
Hygroscopic tape covering the screen (OL / 2OL types)
Filler
Halogen-free fire-resistant polyolefin layer
Outer Sheath
Polyolefin sheath (type ST12 / DMZ2)
Standard color: Red with two green stripes
Custom colors available upon request
Key Features and Advantages
LSZH (Low Smoke Zero Halogen) design enhances fire safety in critical infrastructures
Excellent thermal stability up to 90°C continuous operation
High short-circuit resistance up to 250°C
Water-blocked design options (OL / 2OL) for improved reliability in humid environments
Robust mechanical strength against abrasion and tearing
UV and environmental resistance for outdoor durability
Compliant with international standards, ensuring global project compatibility
Typical Applications
Medium voltage power distribution networks
Industrial plants and facilities
Urban infrastructure and smart city grids
Tunnels and underground installations
Street lighting systems
