When a fire starts, ordinary cables can allow flames to spread along the cable route. They may also generate dense smoke. Our fire retardant instrument cable is designed to help prevent flame propagation. High-efficiency flame-retardant additives are incorporated into both the insulation and the outer jacket. When exposed to fire, these materials form a protective carbonized layer that helps isolate oxygen and slow the spread of flames along the cable. The jacket is self-extinguishing, providing valuable time for evacuation and emergency response.

Signal Accuracy Without Compromise

Fire safety does not come at the expense of signal performance. The cable uses high-purity oxygen-free copper conductors to ensure stable signal transmission. It features our standard double-shielding structure, with an aluminum foil shield around each pair and a dense tinned copper braid surrounding the entire cable. Braid coverage exceeds 85%, providing excellent protection against electromagnetic interference (EMI) from industrial equipment. The working capacitance is less than 60 nF/km, while the insulation resistance reaches 1000 MΩ·km. These characteristics help maintain accurate signal transmission in fire-rated installations.
This cable is manufactured to comply with IEC 60332 flame-retardant requirements and also meets CE and RoHS requirements. Every production batch undergoes routine quality inspections, including vertical flame tests to verify flame-retardant performance. Common models such as ZR-DJYPV and ZR-DJYPVP are available from stock.
For applications requiring a higher level of safety, we also offer a low-smoke zero-halogen (LSZH) version. Compared with standard PVC jackets, LSZH materials produce significantly less smoke and contain no halogen compounds, helping reduce the release of corrosive and toxic gases during a fire. This makes them ideal for enclosed public spaces such as subways, hospitals, and data centers.

Key Specifications
|
Parameter |
Specification |
|
Common Models |
ZR-DJYPV, ZR-DJYPVP, ZR-DJYVP, ZR-DJYPVR |
|
Flame-Retardant Standard |
Complies with IEC 60332 |
|
Conductor |
High-purity O.F.C. / Tinned Copper |
|
Shielding Structure |
Foil (Pair) + Tinned Copper Braid (Overall) |
|
Jacket Material |
Flame-Retardant PVC / LSZH |
Frequently Asked Questions
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