D: Low Smoke, W: Halogen-Free, ZR: Flame Retardant. Flame retardancy is divided into four grades: A, B, C, and D (D is only used for thinner products with an outer diameter of 12mm or less). ZR defaults to Class C flame retardancy.
Flame Retardancy Characteristics: ZA > ZB > ZC
Low-smoke, halogen-free wires and cables produce only minimal white smoke when burned, and the gases released do not contain halogen (non-toxic). In the event of a fire, the spread is slow, smoke density is low, visibility is high, and harmful gas release is minimal, reducing harm to the human body.
WDZ-YJY
Wire Core Specifications:
1-core, 2-core, 3-core, 4-core, 5-core, 3+1-core, 3+2-core, 4+1-core
WDZ-YJY Structure Diagram
Maximum Operating Temperature of Conductors:
Maximum Operating Temperature of Conductors: +90°C
Ambient Operating Temperature: -25°C to +45°C
Cable Laying Temperature: No less than 0°C (If the ambient temperature is below 0°C, the cable must be preheated.)
WDZB-YJY
Minimum Bend Radius:
Single-core Cable: 20D
Multi-core Cable: 15D
Note: D is the actual outer diameter of the cable.
Scope of Application:
Low-smoke, halogen-free, flame-retardant wires and cables are commonly used in high-rise buildings, hospitals, large libraries, gymnasiums, stations, airports, waiting rooms, museums, subways, underground shopping malls, and other densely populated public areas.
