Fire-resistant telecommunications cable YnTKSYekw 1x2x0.8 black 0382 002 05

Intended Use and Application

The YnTKSYekw 1x2x0.8 black cable is a specialized solution for fire safety systems where there is no room for error. It is designed for the transmission of analog and digital signals in monitoring lines of fire alarm systems — where every millisecond counts from the moment a fire is detected to the activation of auxiliary devices: ventilation shutdown, elevator recall, and power disconnection.

This is not a cable "just in case." It is engineered to operate at the "0" moment — when a detector senses fire and the installation must function without interference, even as temperatures rise. Its application also includes autonomous fire suppression and smoke extraction systems, where signal stability determines operational effectiveness.

Construction and Resistance

The cable features two single-strand copper conductors with a cross-section of 0.8 mm² — ensuring stable signal flow at the low currents characteristic of alarm systems. The conductor insulation is made of PVC with insulating properties, and the pairs are twisted around a central core to reduce interference between lines.

An internal static shield made of laminated metal foil — with an additional tinned grounding conductor — protects the transmission from electrostatic interference. This is crucial in buildings with multiple electromagnetic sources: motors, variable frequency drives, and radio devices.

The cable sheath is made of special PVC with a limiting oxygen index above 29% — meaning it does not support flame propagation. It does not burn on its own. It does not emit large quantities of smoke. It is not just a cable — it is an element that prevents fire escalation.

Compliance and Operating Conditions

The cable holds a Certificate of Approval and a Technical Approval issued by CNBOP-PIB — confirming its legal use in fire protection installations in accordance with Polish regulations. CPR classification (PN-EN 50575) confirms its safety regarding reaction to fire.

It operates permanently indoors. It can be installed at temperatures not lower than -5°C — providing flexibility during winter installation. The test voltage of 1500 V AC / 2250 V DC and insulation resistance >200 MΩ×km guarantee safe operation even over long routes and at low control voltages.

It does not require special installation conditions — but it demands a responsible approach: it is not a cable for domestic use or power transmission. It is a tool for professionals who cannot afford a failure.