cable news: introduction to the basic knowledge of irradiated xlpe cables and wires-非凡电子娱乐

characteristics of radiation crosslinked low smoke halogen free flame retardant wire and cable

in today's industrial society,

energy and information are the two pillars of society,

whether it is electricity or information transmission,

can not do without wires and cables,

especially high-rise commercial buildings,

subways, tunnels, nuclear power stations, etc..

in order to meet the requirements of fire safety and environmental protection,

low smoke non halogen flame retardant fire resistant wire and cable.

as everyone knows，

ordinary pvc insulated wire and cable with excellent mechanical properties,

electrical and processing performance, but the biggest shortcoming is flammable,

high calorific value, fast flame propagation,

when burning, it releases a lot of poisonous and harmful corrosive gases and smoke,

cause two disasters".

these gases and smoke not only endanger the safety of life,

but also serious corrosion of equipment and buildings,

at the same time, it caused great difficulties for fire fighting and evacuation.

all this makes people realize that the flame retardant cable,

must also have high temperature resistance, anti-aging,

no smoke, no poison and low corrosion,

development of low smoke and no halogen,

non toxic fire products have become a comprehensive development direction of the cable industry.

irradiation crosslinking low smoke halogen-free flame retardant and wire cable,

is the use of foreign imports of low smoke halogen free material,

radiation crosslinking of cables by high energy electron beam generated by electron accelerator,

the insulating layer of the cable is changed from a linear molecular structure into a three-dimensional net structure,

a three-dimensional lattice of water molecules,

a dense layer was formed on the surface and inside of polyethylene,

so as to effectively prevent the combination of hydroxide and water molecules,

the crosslinking method not only improves the temperature resistance of wire and cable,

wear resistance and flame retardant performance, the more important is to play a role in water resistance.

the crosslinking method has the advantages of high temperature and no water,

can also improve the flame retardant and electrical properties of the cable.

the cable has the characteristics of low smoke, non halogen, flame retardant, fire resistance and high temperature resistance.

specific performance is as follows: high temperature resistance:

the working temperature of conductor is allowed to be 135 deg c for a long time (ordinary cable is at least 70 deg c or 90 deg c);

flame retardant performance: bunched beam combustion test for class a.

(general cable c); no smoke gas, light transmittance is more than 90%,

the ph value is greater than or equal to 6 (ordinary low smoke halogen-free cable transmission rate greater than 60%, ph = 4.3);

excellent mechanical properties. wear resistance up to 160 thousand times, the service life of more than 50 years.

application range: irradiation crosslinking low smoke halogen free flame retardant

and wire and cable suitable for 10kv and below power transmission and distribution system,

control circuit and various requirements of flame retardant, fire resistant, smokeless,

it can be widely used in nuclear power plants,

power plants, steel mills, oil wells, computer rooms, schools, places of entertainment,

crowded places and high-rise buildings.

with the progress of society,

the development of science and the improvement of people's awareness of environmental protection,

the demand of irradiation crosslinking low smoke halogen-free flame retardant and fire resistant wire and cable will be more and more big,

at the same time, the research of new materials for replacing copper conductors will be further developed,

it is believed that the development of radiation crosslinked low smoke halogen-free flame retardant and fire resistant wire and cable will have a bright future.