|
submarine optical cable
|
|
Application Range:
|
communication between continent and islands , between islands and islands and among coastal cities.
|
|
Product Features:
|
1) The optical fiber is laid in the laser welded stainless steel tube , which is filled with the thixotropic jelly. It can protect effectively the fiber from the mechanical external force and the water intrusion and prevent the hydrogen induced loss.
|
|
2) The inner armor uses two layers of high strength steel wire .
|
|
3) The copper conductor can be applied to be used for the fault location or repeated power supply .
|
|
4) The Zn-Al-Mg alloy coated wire can be armored in single layer or two layers to make the cable have excellent mechanical performance and sea water corrosion resistance .
|
|
5) The modified asphalt is used for the anticorrosion of armor steel wire .
|
|
6) The manufacturing length for a single cable is not less than 25km.
|
|
Mechanical characteristics:
|
|
Item type
|
A
|
B
|
C
|
D
|
|
break tensile load( kN)
|
400
|
180
|
100
|
50
|
|
Transient tensile load( kN)
|
240
|
110
|
70
|
30
|
|
operation tensile load( kN)
|
120
|
60
|
40
|
20
|
|
repeated bend (times)
|
10
|
10
|
10
|
10
|
|
ratio of Min. bend radius to outer diameter of submarine cable
|
≥25
|
≥25
|
≥35
|
≥30
|
|
impact hammer weight(kgx150mm)
|
260
|
160
|
130
|
65
|
|
compression(kN/100 mm)
|
40
|
20
|
15
|
10
|
|
outer diameter ( mm )
|
36
|
33
|
23
|
19
|
|
water penetration (m)
|
shallow submarine cable
|
5 MPa water pressure for 14 days,unidirectional
water penetration length no more than 200 mm.
|
|
deep sea submarine cable
|
50MP water pressure for 14 days,unidirectional
water penetration length no more than 1000 mm
|
|
operation and installation temperature range(��/span>)
|
-10ç¯Â�/span>40
|
|
storage temperature range (��/span>)
|
-20ç¯Â�/span>50
|
|
Note:
|
|
1.The above list doesn't show the complete types of the products, each type is available for different using depth and submarine environment.
|
|
2.The product can be designed specially according to the subscriber's specification and the actual line condition.
|