I have the following information on refractory cables:
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 maintain operation for a certain period during flame combustion, up to three hours at the longest. They are commonly used in critical 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 in high-rise buildings, hospitals, theaters, power stations, subways, tunnels, and petrochemical industries, where special flame-retardant, halogen-free, low-smoke, and low-toxic safety and cleanliness requirements are needed.
Low-smoke halogen-free power cables for transmission and distribution systems rated at 0.6/1KV.
Low-smoke halogen-free cables, control cables, for control, monitoring circuits, and protective lines rated at 450/750V and below.
Low-smoke, halogen-free cables and fire-resistant cables not only transmit electricity under normal operating conditions but also supply power for a period during a fire, enabling emergency firefighting and personnel evacuation, thereby reducing fire losses.
Cables, during normal operation, cross-linked poly-insulated cables have a long-term allowable working temperature not exceeding 90°C, and the conductor's high temperature during a short circuit (lasting 5 seconds) should not exceed 250°C. For PVC insulated cables, the long-term working temperature should not exceed 70°C, and during a short circuit (within 5 seconds), it 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 polyolefin insulated halogen-free low-smoke A (B, C) class flame-retardant control cables |
| WDZA-KYJYP | Copper-core cross-linked polyethylene insulated copper wire braided with polyolefin sheath, halogen-free, low-smoke A (B, C) class flame-retardant control cable |
| WDZA-KYJYP2 | Copper-core cross-linked polyethylene insulated copper tape shielded polyolefin sheathed halogen-free low-smoke A (B, C) class flame-retardant control cable |
| WDZA-KYJYP3 | Copper-core cross-linked poly-insulated copper-plastic composite tape, shielded with polyolefin sheath, halogen-free, low-smoke A (B, C) class flame-retardant control cable |
