In SHINE's fire laboratory, a kind of ordeal is repeated every week.
The setup
To the top BS 6387 C-W-Z classification, samples must survive in sequence:
- 950°C flame, energised, for 3 hours — simulating power continuity through an entire fire
- 650°C flame with mechanical impact every 30 seconds — simulating falling debris
- 950°C flame for 15 minutes, then water spray for 15 — simulating sprinkler intervention
Why so brutal
In a fire, ordinary cable short-circuits within 90 seconds. Yet fire pumps, emergency lighting and smoke extraction fans must keep running through evacuation and rescue. The magnesium-oxide insulation of MI cable is inorganic — it is not "fire-resistant"; it simply cannot burn.
Our test engineer puts it this way: watch a cable keep a lamp lit inside white-hot flame, and you understand why this product exists.
Full test footage and third-party reports are available from our sales team.
