characteristics and identification methods of low smoke halogen free flame retardant wire-非凡电子娱乐

low smoke halogen free flame retardant wire characteristics and identification method is what? for low smoke halogen-free flame retardant wire and we do not know, a lot of people only know the wires, but for some understanding of the different uses of the wires is very few, so we want to realize low smoke halogen-free flame retardant wire should first understand what is the characteristics and identification methods of low smoke halogen-free flame retardant wire? specific knowledge is as follows:

what are the characteristics of low smoke halogen free flame retardant wire?

the use of each wire is different, it is because it has the characteristics of no other wire, so before we buy low smoke halogen-free flame retardant wire or the first to find out what are the characteristics of low smoke halogen-free flame retardant wire.

1 low smoke halogen free flame retardant wire characteristics: tensile strength than the general pvc wire large: general pvc wire tensile strength is greater than 1.05kgf/mm2, and low smoke halogen free wire tensile strength than 1.2kgf/mm2;

2 characteristics of low smoke halogen free flame retardant wire - good weather resistance (~105 c -30 c c); have a good degree of softness (hardness of 80-90);

the characteristics of 3 low smoke halogen-free flame retardant wire with a non shifting (because this product formula without adding plasticizer, so there will not be transitional); combustion does not produce toxic black smoke (will have a small amount of white smoke); high volume resistivity: pvc wire is 1012~ 1015 /cm3, low smoke no halogen wire greater than 1016 /cm3; (7) has the advantages of high pressure good properties: pvc wire resistance to more than 10kv, while the low smoke non halogen wire high above 15kv; (8) with good elasticity and viscosity.

low smoke halogen free flame retardant wire identification method is what?

1, low smoke halogen free flame retardant wire identification method of product name identification method. wire - low smoke halogen free flame retardant polyethylene insulated wire and cable; cable low smoke halogen free flame retardant pe insulation low smoke halogen free flame retardant pe sheathed power cable. under normal circumstances, the name will be a little different, such as polyethylene insulation, low smoke halogen free flame retardant power cable and so on.

method 2 recognition method, skin burns low smoke halogen-free flame retardant wire. electric soldering iron pressed insulation layer should be no obvious depression, if there is a larger depression that insulation layer using the material or process defects. or with a lighter barbecue, under normal circumstances should be not easy to ignite, after a long time the cable insulation layer is still relatively complete, there is no smoke and pungent odor, while the diameter has increased. if it is easy to ignite, it is possible to determine the insulation of the cable without the use of low smoke halogen free material (it is likely to be polyethylene or crosslinked polyethylene material). if there is a large smoke, then explain the use of the insulation layer of halogen containing materials. if the insulation surface is falling off and the diameter is not increased, it is indicated that there is no suitable irradiation crosslinking process.

3, low smoke halogen free flame retardant wire identification method of hot water immersion method. soak the wire core or cable in hot water at 90 degrees celsius. under normal conditions, the insulation resistance will not drop rapidly and remain above 0.1m /km. if the insulation resistance is down even lower than /km 0.009m, it is indicated that there is no suitable irradiation crosslinking process. (pe or crosslinked pe insulation material is not suitable for this method, and can be identified by the above second methods).

4, low smoke halogen free flame retardant wire identification method of the density contrast method. low smoke halogen free material density than water, you can peel a little insulation layer into the water, if floating above the water, it is certainly not a low smoke halogen free material.