IEC 60331 & BS 6387: Critical Fire-Safety Standards Cable manufacturers must comply with fire-resistance regulations to safeguard buildings, industrial plants, and transit systems. IEC 60331 and BS 6387 are international tests that ensure cables maintain circuit integrity during a fire. IEC 60331 subjects powered cables (up to 1.0 kV) to a hig

Fire-resistant cables rely on mica tape as a high?temperature insulation layer to keep critical circuits alive during a fire. In buildings, cables power fire alarms, sprinkler pumps, emergency lighting and smoke-control systems. In a fire, ordinary PVC-insulated cables fail and emit toxic smoke, quickly cutting power to these systems. By contrast,

Mica tape and Kapton tape are both high-performance electrical insulators, but they serve different niches. Mica tape (made from inorganic phlogopite mica) is essentially fireproof and is the industry standard for fire-resistant cable applications. Kapton tape (polyimide film) is an organic polymer renowned for its exceptional heat resistance and d