Specifications

Factory best price telephone cable/ Crystal head phone line
Conductor requirement: 99.99% pure copper

  Factory best price 20 pair telephone cable/  Crystal head phone line

Application:

voice calls, 2 ~ 10M broadband network, building intelligent video intercom and security monitoring transmissions.

suitable occasions: outdoor, waterproof, anti-aging, indoor, tube wells, anti-cold occasion.

Working temperature: -30 ~ 60°C

 

Cable construction:

Conductor

Material: 99.99% oxygen-free soft round copper wire, comply with the national standard GB3953-1983

Conductor nominal diameter: 0.5 ± 0.005 mm

Conductor Elongation rate: ≥ 15%

Insulation

Material: High density polyethylene(HDPE), with density 0.941g/cm³ ,meet the national standard YD / T 760-1995

Insulation integrity: DC spark test 1.5-6KV, every 12Km insulation does not exceed a pinhole or similar defects.

Insulation Diameter: 0.88 ± 0.02 mm

Insulated main colors: white red black yellow purple

Insulated auxiliary colors: blue orange green brown gray

Insulation requirements: color does not fade, does not migrate, mechanical and physical properties meet the standard and requirements of GB/T13849.1-93

 

 

Twisted: two conductors with insulation twisted

             Twisted insulation color code as table show

white	Blue;Orange;Green;Brown;grey
red	Blue;Orange;Green;Brown;grey
black	Blue;Orange;Green;Brown;grey
yellow	Blue;Orange;Green;Brown;grey
purple	Blue;Orange;Green;Brown;grey

 

Cable core binding tape: Non-hygroscopic impermeable high strength polyester film, comply with provisions of YD / T 322-1996

Jacket

Material: Medium-density PE special for cable sheathing

Sheath minimum thickness: 1.4mm

Cable Net weight: 0.217kg / m

Plastic coated aluminum tape:

meet standard of YD / T 723.2-2007, nominal thickness 0.20mm.

Plastic coated aluminum tape sheath mechanical and physical properties: meet standard YD / T 322-1996 standard.

Ripcord:

does not absorb moisture, not oil, continuously throughout the entire cable, strong enough to open the cable.

Finished cable electrical performance: Conforms to standard YD / T 322-1996 .

The length of the cable manufacturing: 305m, 500m, 1000m, 2000m

Packing size: 305m-70 * 40cm, 500m- 80* 40cm, 1000m-100 * 50cm, 2000 m-120*70cm

Packing mode: wooden drum + bubble film+ kraft paper+ batten + steel tape sealing

cable head: ends of the cable are sealed with end cap.

Cable end A :mark with red flag , cable end B: mark with green flag

Cable diameter: 17 mm