Characteristics：
This product is used for the connection between OPGW cable and tension-resistant tower in the erection of OPGW cable line.The special design of the pre-twisted wire can ensure that the tension clamp itself will not produce stress concentration which will cause damage to the OPGW cable, so as to ensure the normal life of the cable system.
Structure and Materials：
- This product is a combination of clamp, with a suspension head (each head by a rubber clamp suspension, aluminum plates, U-card, bolt, spring cushion, flat pad, nut, pin closed form), outer preformed wire, retaining Preformed wire line combination.
- Directly preformed armour rods wrapped around the cable surface, providing protection for the cable and stiffness, protecting the line wire is preformed rubber grip clamp inserts, outer middle preformed wire cutter type of rubber from the press and hold the drum clamp, aluminum Maintain its external splint.
- U-card:Made of high strength aluminum alloy.
- Aluminum splint:Made of corrosion-resistant aluminum die casting, the aluminum chemical stability, good resistance to atmospheric corrosion and has good mechanical properties.
- Rubber clamp:Be made of quality rubber and center strength member ,has anti-ozone resistance, chemical resistance, weather aging, with high and low temperature performance, and high strength and elasticity, the smaller deformation.
- Bolt,Elastic pad,Flat pad,Nut:Hot galvanized Standard Parts
- Closed bolt:Power standard parts
- Preformed armour rods:Aluminum alloy wire, high tensile strength, hardness and good flexibility and strong anti-rust capability, in bad weather conditions long-term use.
- Preformed outer rods:Same with preformed armour rods.
- link fitting:Shackle,U-bolt,UB-clevis,ZH-hanging ring are all power standard parts.
Instruction:
1. Use in connection with terminal pole tower, tension-resistant pole tower and connecting pole tower.The specific configuration is: terminal tower — 1 set/tower, tension-resistant tower — 2 sets/tower, connection tower — 2 sets/tower.
2. According to the cable diameter and cable rated breaking force with tension cable clip, so the user can choose according to the selection of the specification table suitable tension cable clip.
3. Grounding wire clip is ordered together with tension wire clip. It is not allowed to directly install grounding wire clip on the inner layer or outer pre-twisted wire of tension wire clip.
Notes:
Only a part of Tension Clamps/Dead-end Fittings are listed here. We can depend on customer’s requirement to producing the different model Tension Clamps/Dead-end Fittings.
OPGW Accessories Hardware:
junction box is mainly used for protecting the fiber optic junction between two cables and reserve a section of fiber optic for maintenance in the box. The box has good leakproofness, anti-water and damp-proof feature and can not corroded in the power line.
Joint box2. Suspension Clamp
Assembly with reinforced suspension clamp and neoprene inner covering ,especially designed for OPGW cables includes grounding clamps for tower connection .
Suspension clamp(Single) Suspension clamp(Double)
Structure
> straight shackle –( Galvanized forged steel)
> Parallel connection clamp —(Aluminum)
> Armour grid suspension clamp–(Aluminum)
> Preformed rods —(Aluminum Alloy)
> Grounding clamp —(Aluminum )
3. Dampers
The dampers are used to absorb the cable vibrations , The number of dampers is determined by the environmental conditions, the distance between towers, the type of OPGW cable and the installation parameters
Vibration damper
Structure
> Securing clamp (Aluminum alloy )
> Messenger cable –(Galvanized steel wire)
> Counter weights–( Galvanized forged steel)
4.Down-lead Clamp
The down-lead clamp clamps are used to fix the cable to the tower in the down lead to the joint box
Wire Clamp for tower Wire Clamp for pole
Structure
1. Clamp–(Aluminum )
2. M-12-rod-(Galvanized steel )
3. Support body –(Galvanized steel )
4. Lock screw—( stainless steel )
5.Tension Assembly
Preformed tension especially designed for OPGW cable Includes grounding clamps for tower connection ,when the distance between two anchor towers is greater than maximum length of OPGW cable drums, there are special tension assemblies for installation in suspension towers, allowing a cable joint to be included.
Dead-end fitting( Single)
Structure
1. Straight shackle -( Galvanized fogged steel)
2. Extension Link( Galvanized laminated steel )
3. Dead end –(Compression aluminum clad steel)
4. Thimble —(Cast galvanized steel)
5. Protection Splice–(Compression aluminum clad steel)
6. Ground clamp –(Aluminum)
Configuration
There are three types of assemblies for installation in tension towers :
1.Passing tension assembly : for intermediate towers
2.Splicing tension assembly : for towers with joint boxes
3.Final tension assembly : for final towers
Noted: More Hardware accessories are available on customer’s request.
Application:
Package
11
