The information I have on fire-resistant cables is as follows:
Fire-resistant Cable - WDZA-KYJYP2/23-750V-2*2.5mm Low-smoke Halogen-free Flame-retardant Cable
* **Model**: WDZA-KYJYP2/23
Voltage: 750V
* **Conductor**: 2*2.5mm
**Material**: Low-smoke halogen-free flame-retardant cable material
* **Type**: Fire-Resistant Cable
Fire-resistant cables can operate for a certain period during flame combustion, up to three hours at the longest. They are commonly used in significant locations such as large public buildings, power plants, and petrochemical factories. Such cables are often employed in fire alarm systems, fire equipment wiring, and electrical circuits within important buildings.
Fire-resistant Cable - WDZA-KYJYP2/23-750V-2*2.5mm Low-smoke, Halogen-free Flame-retardant Cable, suitable for fixed installations with specific flame-retardant, halogen-free, low-smoke, and low-toxic safety and cleanliness requirements in high-rise buildings, hospitals, theaters, power stations, subways, tunnels, and petrochemical industries.
Low-smoke, halogen-free power cables for transmission and distribution systems rated at 0.6/1KV.
Low-smoke, halogen-free cables are used for control, monitoring circuits, and protective lines with rated voltages of 450/750V and below.
Low-smoke, halogen-free, fire-resistant cables not only transmit electricity under normal operating conditions but also provide power for a period during a fire, enabling emergency firefighting and evacuation of personnel, thus reducing fire-related losses.
Cables, during normal operation, cross-linked poly-insulated cables have a conductor long-term working temperature not exceeding 90°C, and the conductor's maximum temperature during a short circuit (lasting 5 seconds) should not exceed 250°C. PVC insulated cables have a long-term working temperature not exceeding 70°C, and during a short circuit (within 5 seconds), the temperature should not exceed 160°C. Cables must be pre-heated when laid at temperatures below 0°C.
WDZ-KYJYP2-23 Low-Smoke Halogen-Free Cable
| Model | Name |
| WDZA-KYJY | Copper-core cross-linked polyethylene insulated flame-retardant control cable with halogen-free and low-smoke A (B, C) class fire-resistant properties |
| WDZA-KYJYP | Copper-core cross-linked poly-insulated copper wire braided屏蔽polyolefin sheathed halogen-free low-smoke A (B, C) class flame-retardant control cable |
| WDZA-KYJYP2 | Copper-core cross-linked poly-insulated copper tape sheathed polyolefin jacket halogen-free low-smoke A (B, C) class flame-retardant control cable |
| WDZA-KYJYP3 | Copper-core cross-linked polyethylene insulated copper-plastic composite tape, shielded with polyolefin sheath, halogen-free, low-smoke A (B, C) class flame-retardant control cable |
