WDZ-YJY is a low-smoke halogen-free power cable with XLPE insulation and a polyethylene sheath, rated 0.6/1 kV, 3×120 mm². Both filler and sheath use halogen-free flame-retardant compounds. Burning gives little smoke, high light transmittance and few corrosive gases, reducing secondary damage to people and sensitive equipment, so it suits distribution circuits in subways, stations, hospitals, schools and data centres.