Hi
The surfix and Twin and earth , steel coated copper is not SANS approved for house wiring - The volt drops across the wiring are way out of specification - It is being sold in " General Stores" and a magnetic quickly identifies the cable
The supposedly T&E is brought in under SANS1507 and called speaker wire
Sans1507 consists of 7 different parts ranging from housewire to service cables and I assume that one of them is speaker wire
I don't think the steel copper coated wire would work to well on speaker wire either
Pic attached
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