Armoured Cable vs Surfix – Best Choice for Outdoor Installations
Why Outdoor Cable Choice Matters
Outdoor installations are exposed to sun, rain, rodents, and mechanical stress. Choosing the wrong cable can quickly lead to damage, electrical faults, or even fire. In South Africa, the most common comparison is between Armoured Cable and Surfix. Both are widely used, but they serve different purposes.
What is Armoured Cable?
Armoured Cable, often referred to as SWA (steel wire armoured), is designed for demanding conditions.
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Multi-core copper conductors
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PVC or XLPE insulation
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Steel wire armouring for mechanical protection
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UV and weather resistant
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Suitable for underground runs and exposed outdoor installations
What is Surfix Cable?
Surfix is a more lightweight cable primarily intended for indoor fixed wiring.
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Flat PVC-sheathed cable with solid copper conductors
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Includes live, neutral, and bare copper earth conductor
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Commonly used in residential circuits
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Can be used outdoors only if placed inside black UV-rated conduit
Key Differences Between Armoured Cable and Surfix
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Mechanical strength: Armoured provides heavy-duty protection; Surfix is fragile by comparison
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Outdoor suitability: Armoured is safe for burial and direct exposure; Surfix requires conduit protection
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Cost: Armoured is more expensive but lasts longer outdoors; Surfix is cheaper but needs additional conduit
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Flexibility: Surfix is lighter and easier to handle; Armoured is heavier and more rigid
Which Should You Use Outdoors?
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For exposed outdoor runs, underground wiring, or areas where physical damage is possible, Armoured Cable is the correct choice.
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For smaller domestic outdoor runs that are protected inside conduit, Surfix can still be used effectively.
Common Mistakes to Avoid
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Running Surfix directly outdoors without conduit
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Burying Surfix instead of Armoured Cable
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Mixing flexible and fixed cables incorrectly
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Ignoring SANS regulations for protection and breaker sizing
FAQs
Can Surfix be buried directly in the ground?
No. Surfix must be run in conduit outdoors. Armoured Cable is the safe choice for burial.
Is Armoured cable more expensive?
Yes, but it provides unmatched durability and protection for outdoor runs.
Which one complies with SANS?
Both are compliant if used correctly. The application determines compliance.
Can I run Armoured cable indoors?
Yes, but it is heavier and more difficult to terminate than Surfix.
Choosing the Right Outdoor Cable with Lite-Glo
At Lite-Glo, we stock Armoured Cable, Surfix, and a full range of conduits, accessories, and breakers. Whether you’re wiring a new outdoor light, a garden pump, or a commercial installation, we have the products to keep your installation safe and compliant.
[Carousel Placeholder: Armoured Cable | Surfix Cable | Conduit & Accessories]
Shop Armoured Cable – Per Meter
Shop Surfix Cable – Per Meter
Shop Surfix Cable – 100M Rolls
⚠️ Safety & Compliance Notice
All electrical installations in South Africa must comply with SANS 10142-1 (Wiring Code) and the Occupational Health & Safety Act. Work must be carried out by a qualified, registered electrician.
This article is for general educational purposes only. It does not replace professional advice, and Lite-Glo accepts no liability for how this information is used. Always obtain a valid Certificate of Compliance (CoC) for any electrical work.
Need Assistance?
📧 onlinesales@liteglo.co.za
📞 011 781 3100
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