HEPRZ1 Cable – UNE-HD 620-9E LSZH Medium Voltage Aluminium Cable

Product Overview

The HEPRZ1 cable is a medium voltage aluminium power cable designed for the transmission and distribution of energy in medium voltage networks. It combines a compacted Class 2 aluminium conductor, HEPR insulation, and a halogen-free polyolefin sheath to deliver reliable electrical performance in fixed and protected installations.

Manufactured according to UNE-HD 620-9E, the HEPRZ1 features a triple-extruded insulation system and an overall copper shield, making it suitable for demanding medium voltage distribution applications where halogen-free construction is required.

Key Features & Benefits

• Medium Voltage Performance: Designed for medium voltage energy transmission and distribution networks.

• Aluminium Conductor: Stranded, circular, and compacted Class 2 aluminium conductor according to IEC/EN 60228.

• HEPR Insulation: Internal semiconductor, HEPR insulation, and semi-detachable external conductor applied by simultaneous triple extrusion.

• Halogen-Free Sheath: Polyolefin outer sheath supports LSZH / halogen-free cable requirements.

• Copper Shield: Annealed copper wire core arranged in open helix plus copper strap for overall cable shielding.

• High Conductor Temperature: Maximum conductor temperature of +105°C.

• Short-Circuit Withstand: Maximum short-circuit temperature of +250°C for max. 5 seconds.

• Installation Flexibility: Suitable for fixed and protected installation with a service temperature range of -15°C to +70°C.

Typical Applications

• Medium voltage transmission and distribution networks

• Energy distribution in industrial and utility medium voltage systems

• Fixed and protected installations requiring halogen-free cable construction

• Applications designed in accordance with UNE-HD 620-9E

Construction Details

• Conductor: Stranded aluminium strands, circular and compacted, Class 2 IEC/EN 60228

• Insulation: Internal semiconductor – HEPR – semi-detachable external conductor. Applied by simultaneous triple extrusion

• Overall Cable Shield: Annealed copper wire core, arranged in open helix + copper strap

• Identification: Natural

• Sheath: Polyolefin

Technical Specifications

Electrical Characteristics

• Service Voltage: 18/30 kV (36 kV)

• Service Temperature in Fixed and Protected Installation: -15°C to +70°C

• Temperature During Handling, Transport and Storage: +5°C to +50°C

• Max. Conductor Temperature: +105°C

• Max. Temperature in Short Circuit (max. 5 sec): +250°C

Standards

• UNE-HD 620-9E

Parameter Table – 12/20 kV

*As indicated in the source specification.

Note: The source document specifies a service voltage of 18/30 kV (36 kV) and provides the parameter table above under a 12/20 kV heading. Please confirm the required voltage class and final technical data at the time of ordering.

Standards & Compliance

The HEPRZ1 cable is designed in accordance with:

• UNE-HD 620-9E

• IEC/EN 60228 Class 2 conductor specification

Ordering Information

To request a quote or place an order, please provide the following information:

• Product Type: HEPRZ1

• Standard: UNE-HD 620-9E

• Voltage Class: 12/20 kV or 18/30 kV (please confirm)

• Conductor Size: e.g., 1X50/16, 1X95/16, 1X150/16, 1X240/16, 1X400/16, 1X500/16, 1X630/16

• Conductor Material: Aluminium, Class 2

• Insulation: HEPR

• Sheath: Halogen-free polyolefin

• Quantity: Total length in meters