Currently in the fire, the electrical fire caused due to wires and cables can not be ignored, the number of deaths in fire accidents, 80% is not directly burned to death, but by the smoke and toxic gas suffocated. Intense debate filled with smoke victims unclear direction, smoke causes people panicked loss, thus prolonging the residence time of the fire scene, making it difficult to breathe directly fatal, while preventing the firefighters extinguishing and rescue relief . Halogen-free flame retardant cable materials fire-resistant and halogen-free, smoke generated during combustion and have less to prevent or delay the spread of flame, to maintain the integrity of the line of wire and cable. Scope: This product is suitable for flame retardant and high concentration of personnel in confined spaces. Use features: 1, rated voltage 450 / 750V. 2, the current long-term allowable working temperature of 70 ℃ 105 ℃ 125 ℃ 135 ℃. 3, the product smoke density (transmittance) test to meet the GB / T17651.2-1998. 4, halogen-free performance of the product is tested to meet GB / T17650.2-1998. 5, flame retardant in line with GB / T18380.3-2008 bunched burning test A, B, Class C requirements. 6, smoke toxicity in line with GA132 quasi-safety level requirements. 7, the minimum bend radius of the wire is 6D.