Fire-Rated Cable Systems
Fire pumps, alarm panels, smoke fans, and sprinkler control circuits need power and signal cable that keeps working during the fire it's meant to fight, built to BS 6387 or IEC 60331 circuit integrity standards rather than standard wiring. NLS sources fire-resistant cable for the circuits feeding hospital and industrial fire protection equipment across Saudi Arabia, matched to the fire strategy's required survival time.
Every active fire protection system depends on a cable somewhere staying electrically alive during the fire it's designed to respond to: the fire pump needs power to keep running, the alarm panel needs its detector and notification circuits intact to keep functioning, and smoke extraction fans need their feed to keep pressurizing a stairwell while occupants are still evacuating through it. A standard PVC or XLPE cable fails within minutes of direct flame exposure, which is why these specific circuits, not the whole building's wiring, need fire-resistant (FR) cable rather than a standard feeder.
Fire-resistant cable, typically built with mica glass tape or a ceramifiable insulation layer around the conductor, is tested to circuit integrity standards, commonly BS 6387 or IEC 60331, that confirm the cable keeps conducting and the circuit stays closed for a rated duration under direct flame, sometimes combined with mechanical shock or water spray to simulate real fire conditions rather than just flame alone. This is a distinct property from fire-retardant LSZH cable, which slows flame spread and limits smoke but doesn't promise the circuit keeps working, a distinction worth checking carefully against a fire strategy's actual cable schedule rather than assuming any 'fire cable' on a supplier's list meets the requirement.
On a Saudi hospital or industrial project, the circuits that typically require FR cable are the fire pump feeder, fire alarm panel power and detector/notification loops, smoke extraction and stair pressurization fan feeds, emergency lighting circuits tied to the fire strategy, and sprinkler system control and monitoring wiring, exactly the equipment categories NLS supplies elsewhere in its fire safety range, which means the cable and the equipment it feeds can be scoped from the same project team rather than sourced from two disconnected suppliers.
A project team typically sends the fire strategy's cable schedule, listing which circuits need FR cable and the required survival duration (per the BS 6387 category or equivalent), along with conductor sizes and circuit count, and NLS returns a matched cable recommendation. Fire-rated cable is a made-to-spec, lower-volume product compared to standard feeder cable, so lead time is generally longer and worth confirming early in project scheduling.
Specifications
- ✓Circuit integrity tested to BS 6387 or IEC 60331, confirming the circuit stays closed under direct flame for a rated duration
- ✓Construction: mica glass tape or ceramifiable insulation barrier around the conductor
- ✓Distinct from fire-retardant LSZH cable, which limits flame spread/smoke but does not guarantee circuit continuity
- ✓Typical circuits: fire pump feeder, alarm panel and detector loops, smoke fan and pressurization feeds, sprinkler control wiring
- ✓Survival duration matched to the project's fire strategy and cable schedule, not a single default rating
- ✓Conductor: copper, single-core and multi-core, matched to circuit load
Frequently Asked Questions
What's the difference between fire-resistant cable and fire-retardant LSZH cable?+
Fire-resistant (FR) cable is tested to keep the circuit electrically closed and working under direct flame for a rated duration, per BS 6387 or IEC 60331. Fire-retardant LSZH cable doesn't promise circuit continuity, it's built to slow flame spread and limit smoke and toxic gas along the cable run. A fire pump or alarm circuit needs FR cable specifically; LSZH alone doesn't meet that requirement.
Which circuits on a fire protection system need fire-rated cable?+
The fire pump feeder, fire alarm panel power and detector/notification loops, smoke extraction and stair pressurization fan feeds, fire-strategy emergency lighting circuits, and sprinkler control and monitoring wiring are the circuits that typically need FR cable, since each has to keep functioning during the fire it's responding to.
Who supplies fire-rated cable for fire protection circuits in Saudi Arabia?+
NLS sources fire-resistant cable tested to BS 6387 or IEC 60331 for the circuits feeding fire pumps, alarm panels, smoke fans, and sprinkler controls on hospital and industrial projects across Saudi Arabia, matched to the fire strategy's required survival duration.