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Preformed tension clamp for OPGW
Usage
The product is used to connect OPGW cable and tower in the optic fiber cable erection, the ground wire can protect the OPGW cable and improve the anti-vibration. The special design of the ground wire can guarantee that the preformed tension clamp will not lead to the stress concentration, which does damage to the OPGW cable, so that, ensure the normal life of the cable system.
Structure &material
Shackle Galvanized steel shackle, used to connect the tower fasteners.
Exstrain rod Hot dip galvanized steel precision exstrain rod, used to connect thimble and shackle, it can also let the exit cable of the preformed tension clamp keep at a distance with the tower, as a result, it will guarantee the cable’s Bending radius.
Thimble Hot dip galvanized steel precision thimble, in the U-shape bending head, which can make tension clamp connect with exstrain rod.
preformed armor rods made by galvanized steel wire or galvanized steel wire, there is one Particles emery on the inner wall of the preformed armor rods, this can improve the friction force. The preformed armor is prefabricated into four muon beams when in manufacturing so that it can install correctly and quickly. The corner of the preformed armor is over the outside so that it can avoid extruding the cable.
Preformed armor rods made into beams by galvanized steel wire or galvanized steel wire, there is strong emery on the inner wall for reducing the lateral pressure on the cable, and meanwhile, it can raise the Grip strength of the preformed tension clamp.
Instruction
One. Used to connect with the terminal tower, strain tower and the connecting tower.
Specific configuration: terminal tower---one suite/tower; strain tower---two suite/tower; connecting tower---two suite/tower.
Two. Select the tension clamp according to the cable diameter and the cable’s rated pulling strength, the users can choose the suitable preformed tension clamp according to the specification table.
Three. The ground wire clamp and the tension clamp should be ordered together. It is not allowed to install the ground wire clamp directly on the inner or outer layer performed armor rods of the tension clamp.
Meaning of product’s type
O-OPGW; N-tension clamp; F-not mechanical; four numbers in front-cable diameter suited; Three numbers behind-cable grip strength.
Preformed tension clamp for OPGW
Specification cable
Catalog NO. | Suitable Cable Dia. (mm) | Preformed Armor Rods | Tension Preformed Armor Rods | Color Code | ||
Length (mm) | Amount | Length (mm) | Amount | |||
ONF 1000 xxx | 9.0-10.0 | 1400 | 13 | 900 | 6 | Red |
ONF 1110 xxx | 10.1-11.1 | 1500 | 14 | 1000 | 6 | Orange |
ONF 1220 xxx | 11.2-12.2 | 1600 | 15 | 1100 | 6 | Yellow |
ONF 1330 xxx | 12.3-13.3 | 1700 | 16 | 1200 | 6 | Green |
ONF 1400 xxx | 13.4-14.4 | 1800 | 18 | 1300 | 6 | Cyan |
ONF 1550 xxx | 14.5-15.5 | 1900 | 19 | 1400 | 7 | Blue |
ONF 1660 xxx | 15.6-16.6 | 2000 | 20 | 1500 | 7 | Purple |
ONF 1770 xxx | 16.7-17.7 | 2100 | 21 | 1600 | 8 | Dark |
ONF 1880 xxx | 17.8-18.8 | 2200 | 22 | 1700 | 8 | Red |
Note: Fixture is sold in suite; standard configuration contains preformed armor rods, preformed tension clamp, Shackle, exstrain rod and thimble, the “xxx” stands for nominal intensity of the connection fittings, use three numbers to express, the unit is KN. Choose the fastenings as collapsing strength according to the chart below.
The relative power fittings connected with tension clamps
Specification table
Type of Shackle | Type of Exstrain Rod | Type of Connect Collar | Collapsing Strength(KN) | Material |
U-7 | YL 170 040 | NHG-040 | 40 | Galvanized Steel |
U-7 | YL 210 070 | NHG-070 | 70 | Galvanized Steel |
U-10 | YL 210 100 | NHG-100 | 100 | Galvanized Steel |
U-12 | YL 210 120 | NHG-120 | 120 | Galvanized Steel |
U-16 | YL 210 160 | NHG-160 | 160 | Galvanized Steel |
Note: This table is applied to the fastenings of preformed tension clamp used in ADSS.
Preformed tension clamp for OPGW