一、按电缆组成材料区分
I. cable composition
低烟无卤电缆:铜芯 不含卤素(F、Cl、Br、I、At)不含铅镉铬汞等环境物质的胶料绝缘;
Low smoke and halogen-free cable: copper core rubber insulation without halogen (F, Cl, Br, I, at), lead, cadmium, chromium, mercury and other environmental substances;
矿物质绝缘电缆:铜芯 氧化镁;
Mineral insulated cable: copper core magnesium oxide;
二、按电缆性能特性
II. According to cable performance characteristics
低烟无卤电缆: 抗张强度比一般PVC电线大，良好的耐火性(-30℃~105℃)、良好的柔软度(硬度为80-90)、不用添加可塑剂燃烧时不会产生有毒黑烟(会产生少量白色烟雾)、阻燃材料选用三种含结晶水的金属氧化物:分别为在200℃、300℃、300℃以上失去结晶水。
Low smoke and halogen-free cable: its tensile strength is greater than that of ordinary PVC wires, with good fire resistance (- 30 ℃ ~ 105 ℃), good softness (hardness 80-90), no toxic black smoke (a small amount of white smoke will be generated) when burning without adding plasticizer, and three metal oxides containing crystal water are selected as flame retardant materials: the loss of crystal water at 200 ℃, 300 ℃ and above 300 ℃.
矿物质绝缘电缆:不会燃烧，也不会助燃，不产生有害气体，在火焰温度1000°C能保持正常通电3小时，电气稳定性强，寿命长，载流量大。
Mineral insulated cable: it can neither burn nor support combustion, nor produce harmful gas. It can keep normal power on for 3 hours at the flame temperature of 1000 ° C, with strong electrical stability, long service life and large carrying capacity.
三、电缆价格对比
III. cable price comparison
低烟无卤电缆是比普通电缆贵10%~20%左右。
Low smoke halogen-free cable is about 10% ~ 20% more expensive than ordinary cable.
矿物质绝缘电缆是比普通电缆贵1-5倍左右。
Mineral insulated cable is about 1-5 times more expensive than ordinary cable.