2015 best quality pvc insulation Building wire Solid core falt cable for Middle east Iran

2015 best quality pvc insulation Building wire Copper solid wire 1mm for Middle east Iran

1.Brief introduction of  electrical wire cable

 This electrical wire cable  is used in the site of signal controlling monitoring loop and protecting circuit at rated voltage up to and including 450/750v.

3.Service of  electrical wire cable
A:When the electrical wire cable
  used in AC system ,the cables rated voltage  should be at  least  equal to             nominal voltage that used in cable system ;

B:When the electrical wire cable used in DCsystem,the system's nominal voltage should      not more than 1.5 times of the cable's rated voltage .

C:Long-term permissible working temperature of conductor

    PVC and PE insulated cables can not exceed 70°c,

    XLPE insulated cables can not  exceed 90°c .

D:Permissible bending radius of cable :the cable whose O.D is shorter than 25mm,its radius shall not     be less than 4 D.the cable whose O.D is 25mm or more than ,its radius shall not be less than 6 D .

E:Cable packed in circle or roll ,its length should be 100m,length tolerance ±0.5m(the same below)

F:Finished insulated core and finished power line ,can bear the AC voltage test stipulated after being     put in the water under room temperature of 20±5°c at least 1 hour .

G:The  electrical wire cable has good electrical insulation property,mechanical     property and no flame propagetion property ,it has reliable quality and is durable     and convenient for use .

4.The specification of the electrical wire cable 

  5.The process of electrical wire cable

A:Drawing(to make the raw aluminum rod into copper wires.)

B:Stranding(to make the aluminum wires into bunch stranded copper conductor)

C:Insulating (to insulate the aluminum conductor with PVC ,PE,XLPE or EPR and so on )

D:Laying-up (to make the insulated conductors and inner fillers into one cable by cabling machine)

E:Braiding(to cover the cable with tinned aluminum or galvanized steel wire braid to screen or                 strength the cable)

F:Sheating(to cover the cable with PO(SHF1) cross-linked PO(SHF2) or PVC as inner or outer    

     sheath)