ARG7H1(O)R Cable - 25mm² to 400mm²

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Description

ARG7H1(O)R cables are Medium Voltage Italian reference power distribution cables built with Class 2 compact stranded aluminium conductors, G7 quality Hard Grade Ethylene Propylene Rubber (HEPR) insulation, and an extruded semiconductor layer. For structural completion, this unarmoured configuration features a plain copper tape metallic screen for electrical shielding, a specialized filler, and a red PVC outer sheath. These cables operate across multiple medium voltage ratings including 3.6/6kV, 6/10kV, 12/20kV, and 18/30kV, with a fixed operating temperature rating of -15°C to +90°C, a minimum installation temperature of 0°C, and a maximum short-circuit threshold of +250°C. The range complies with strict industrial standard specifications including HD 620, IEC 60502-2, CEI 20-13, CEI 20-16, and BS EN/IEC 60228, as well as BS EN/IEC 60332-1-2 for vertical flame retardancy, requiring a minimum bending radius of 12 x overall diameter.

These medium-voltage aluminium cables are designed for power transmission networks requiring high-capacity electrical distribution where a lightweight alternative to copper conductor configurations is specified. They are widely used for routing bulk electricity between substations, transformer rooms, and heavy industrial complexes or utility-scale power networks. Their integrated plain copper tape screen provides the essential electrostatic shielding necessary for medium-voltage performance, making them ideally suited for large-scale energy infrastructure layouts requiring reliable distribution under strict project budgets.

In terms of specific installation environments, ARG7H1(O)R cables are suitable for fixed indoor and outdoor installations, overhead on heavy-duty cable ladders, or run through protective underground ducts and conduits. Due to their robust core properties, they are also approved for direct underground burial without requiring additional protective trunking, provided the placement complies with standardized electrical installation codes such as CEI 11-17. However, because this specific variant is an unarmoured cable lacking steel wire or steel tape armour, it must only be deployed in situations and environments where it remains entirely free from continuous external mechanical shocks, severe crushing forces, or high tensile strains.

Key Features

Voltage Rating 3.6/6kV
Minimum Bending Radius 12 x Overall Diameter
Flame Retardancy BS EN/IEC 60332-1-2
Temperature Limits Operating Temperature: -15°C to +90°C
Maximum Short Circuit Temperature: +250°C