Uploaded May 2026 | Updated September 2026, 3 weeks ago

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Why is there white powder inside electrical cable? 👀

Strip a quality Twin & Earth or H07RN-F cable and you’ll often find a white powder around the insulated conductors. In this video, we explain what it is, why manufacturers use it, and how it helps improve stripping performance, flexibility and cable quality.

We also reveal one of the warning signs of cheap, poor-quality cable - and why some cables are much harder to strip than others.

How Twin and Earth Is Made 👉 youtube.com/watch?v=Go5CS33SYnw

Complete the free training package 👉
training.efixx.co.uk/course/cables-and-conductors-in-association-with-doncaster-cables

@Doncaster_Cables

#electrician #electricalcable #twinandearth #sparky #cablemanufacturing #electricalinstallation