Specifications

       0.5mm/0.4mm outdoor telephone cable500 pair cable

Conductor: solid bare copper 26 awg  cable

             Conductor requirement:     99.99% pure copper

             Mechanical properties:       elongation 15%

             Diameter:                   0.51+/- 0.005 mm

             Conductor resistance:       94.5 ohm/km

             Resistance unbalance:      <2.5

             characteristic impedance:   100+/- 15 ohm

Insulation: high density polyethylene (hdpe)  cable

               Thickness:                 0.20 +/- 0.02 mm

               Mechanical properties:       elongation 300%

               Diameter:                0.9+/-   0.02 mm 

               Insulation resistance:      >=5000 mega-ohm/km

Twisted: two conductors with insulation twisted

             Twisted insulation color code as table show

Unit: 25 pairs as one unit 

Filling mateiral: pertrol jelly filled cable

Wrapping: polyester tape wrapping all the conductors concentric

Shield: 0.2mm aluminum tape

Inner jacket: black pe jacket

Cabling: 4 units concentric+polyester tape+pe jacket

Electrical properties: according to the YD/T322-1996 standard

Word print:indoor telephone cable xx pair xxx meters

Package: wood drum

Application:It can be installed in 100 Base-T, Gigabit Ethernet, 155 Mbps ATM, TP-PMD Audio, Multimedia and

Telephone networks. 

the detial information of this indoor telephone cable

The producing steps:

pper add insulation

2. twisted:

3. cabling and insulation wrapping together

4.sheathed

5.package:

Testing:

some other pictures:

Looking forward to our cooperaiton.