Orange Circular SWA

Orange circular SWA (Steel Wire Armoured) cable provides robust mechanical protection for underground and outdoor electrical installations across residential, commercial, and industrial projects. The distinctive orange outer sheath makes buried cable runs easily identifiable during future excavation work, reducing the risk of accidental damage.

Steel wire armoured construction delivers superior protection against mechanical stress, moisture ingress, and rodent damage, making this cable ideal for direct burial applications, external building runs, and harsh environmental conditions. The circular configuration simplifies installation in conduits and provides balanced protection around all conductors.

iSupply Electrical stocks orange circular SWA cable in multiple core configurations and current ratings to suit various installation requirements—from residential underground mains supplies to commercial distribution networks and industrial equipment feeds. All cable meets Australian standards AS/NZS 5000.1 for electrical installations.

FAQs

What applications require orange circular SWA cable?

Orange SWA cable is specified for underground electrical services, external building installations, and any application requiring mechanical protection and easy identification. Common uses include mains supply cables, submain distribution, outdoor lighting circuits, and connections to detached structures like sheds, pools, and garages.

Can orange SWA cable be directly buried without conduit?

Yes, the steel wire armour and PVC outer sheath provide sufficient mechanical and moisture protection for direct burial installations. However, installation depth must comply with AS/NZS 3000 requirements—typically 500mm minimum for standard installations or 300mm when protected by warning tape or covering.

What’s the difference between orange and black SWA cable?

The core difference is visibility during excavation. Orange outer sheathing provides high-visibility warning to anyone digging near buried cables, reducing accidental damage risk. Black SWA cable offers identical electrical and mechanical performance but lacks the visual warning aspect.

How do I terminate SWA cable connections?

SWA cable requires proper gland termination to maintain earth continuity through the steel armour and provide cable strain relief. Use brass SWA glands at both termination points, ensuring the armour wires are properly captured and connected to earth. Only licensed electricians should perform SWA cable terminations.

What cable size do I need for my installation?

Cable sizing depends on load current, installation method, ambient temperature, and voltage drop calculations per AS/NZS 3008.1. For residential mains supplies, 16mm² or 25mm² configurations are common. Commercial and industrial applications may require larger conductors—consult voltage drop tables or contact our technical team for specific project requirements.