2025/7/19 17:28:55
Published: July 2025 | Source: BURY CABLES LIMITED
When designing or upgrading fire alarm systems, selecting the right coaxial cable is critical. Should you use a flame-retardant or a fire-resistant cable? Though similar in name, they fulfill very different roles in emergency scenarios.
| Property | Flame Retardant Coaxial Cable | Fire Resistant Coaxial Cable |
|---|---|---|
| Function | Slows or prevents flame spread | Maintains circuit during fire |
| Construction | LSZH materials | Mica tape or ceramic barriers |
| Test Standard | IEC 60332-1, IEC 60332-3 | BS 6387 (CWZ), IEC 60331 |
| Survivability | Degrades quickly under flame | Operates up to 90 minutes |
| Cost | Lower | Higher |
These cables resist flame spread and emit low smoke. They’re suitable for indoor signal transmission, but cannot guarantee continued operation during fire. Common uses include:
General indoor signal wiring
Non-emergency equipment
Basic fire prevention compliance
Designed to maintain signal under extreme fire conditions (e.g., BS 6387 CWZ), these are essential for:
Fire alarm loops
Emergency communication systems
Control panels and detection networks
Power lines to firefighting sensors/equipment
For critical alarm loops and control systems, only fire resistant coaxial cables meet modern safety codes and guarantee circuit integrity during a fire—vital for saving lives and reducing damage.
While flame-retardant cables serve to reduce fire spread, only fire-resistant coaxial cables ensure signal continuity under fire. For fire alarm installations, err on the side of safety—opt for certified fire-resistant cables to comply with codes and protect lives.
