WDZC-KYJYR22-7×0.75 Low-smoke Halogen-free Flame-retardant Control Cable Technical Analysis
I. Model Definition and Structure
WDZC-KYJYR22‌：
WDZC: Halogen-free, low-smoke flame-retardant Class C (in compliance with GB/T 19666-2019 standard)
KYJY: Copper-core Cross-linked Polyethylene Insulation (XLPE) Polyolefin Sheath
R: Soft structure conductor (multi-strand braided copper wire, high flexibility)
22: Double steel belt armored + polyethylene outer sheath (compressive strength ≥ 50 kN/m²).
7x0.75: 7-core cable, each conductor has a cross-sectional area of 0.75mm² (copper core diameter approximately 0.98mm).
II. Key Performance Parameters
Parameter items Technical Specifications Standard Basis
Rated Voltage 450/750V GB/T 9330-2020‌
Operating Temperature -40℃ to 90℃ (long-term) GB/T 19666-2019‌
Flame Retardant Rating C Class (Bundled Combustion Test) GB/T 18380-2008‌
Bend Radius ≥12x Outside Diameter (Armored Structure) YD/T 1019-2013‌
Section 3: Application Scenarios
Industrial Control: Suitable for PLC, DCS system signal transmission (supports RS485/CAN protocols).
High-security locations: nuclear power plants, subways, theaters, etc. (Low-smoke halogen-free properties reduce fire hazards)
Complex Environment: Direct burial or pipeline laying (armored layer for mechanical damage resistance).