Helical Tension Set for OPGW
Helical Tension Set is mainly used in optical cable installation on strain tower, angle tower and dead-end tower. The material of Helical Tension Set is aluminum-clad steel or galvanized steel wire which has excellent mechanical and electrical performance, to insure strong electrochemical corrosion and fatigue resistance. Grip strength of the Helical Tension Set is no less than 95% Rated Tensile Strength of the cable.OPGW guy grip, namely guy grip dead end or dead end cable grips, is designed to connect OPGW cables and tensile poles(or towers).
Sizes:
When considering the guy grip size, it is better to focus on the available dia. of cable, length of the dead-end component, reference weight, breaking strength, and universal scheme.
Generally, guy grips are available in various sizes depending on different applications. If you are confused with guy grip sizes for OPGW cable, contact US today!
material：
1、The wire clamp is made of materials such as galvanized steel wire and aluminum clad steel wire.
2、A complete set of OPGW Helical Guy Grip includes aluminum alloy or aluminum or aluminum-clad steel dead-end,structural reinforcing rods, supporting fittings and grounding wire clamps etc.
Design：
1、Aluminium Clad Steel rods can protect and provide cushioning to the OPGW cables.
2、Guy Grip will not cause undue stress to the OPGW cables due to the special design of helical rods, therefore, the normal lifetime of cable system is ensured.
Purpose and Structure：
1、Wire clamps can be used on bare conductors and overhead insulated conductors of main and branch distribution lines. Can replace the commonly used tension clamps, including bolt type, on current lines;
2、The wire clamp has a simple structure, with pre twisted legs twisted together to form an empty tube, and a pre formed twisted ring at the rear. When the hollow tube formed by pre twisted legs is wrapped around the wire, it can generate extremely strong gripping force, and the twisted ring is used to fix it on the insulator.
Applications:
1、OPGW Helical Tension Set is mainly used for installation of cable with less than 160kN RTS onto tension tower/pole, corner tower/pole, and terminal tower/pole. A complete set of OPGW Helical Tension Set includes Aluminum Alloy or Aluminum-Clad steel Dead-end, Structural Reinforcing Rods, Supporting fittings and Grounding wire Clamps etc.
2、OPGW Extra-Strength Double Helical Tension Set is special designed for cable installation on large span, high fall and big corner over head line, where the cable RTS is larger than 160kN.
Characteristics：
1、The installation of Helical Tension Set is simple, convenient and quickly, it is unnecessary to use any specialized tools, only one person can complete the operation, saving the time of construction greatly and increasing construction efficiency to reduce installation cost.
2、The quality of installation can be examined by the naked eye, without any specialized training and special tools for installation inspection. A complete set of Helical Tension Set is including Aluminum Alloy or Aluminum-Clad steel Dead-end, Structural Reinforcing Rods, Supporting fittings and Grounding wire Clamps etc.
3、It is composed of three layers construction, including inner reinforcing rods, structural reinforcing rods and outer layer Dead-ends. This structure improves the tensile strength of Helical Tension set, without restriction such as line turn-angle. A complete set of OPGW Extra-Strength Double Helical Tension Set includes helical rods, link fittings and Grounding Clamps etc.
4、High strength: Each wire tension clamp has an additional pre twisted length, ensuring that the tensile strength can reach 100% or more of the rated breaking force (R.B.S) of the wire;
5、Good corrosion resistance: The material is completely consistent with the wire, ensuring strong corrosion resistance;
6、Easy installation: The wire clip can be quickly and easily installed manually on site without the need for any special tools, and can be operated by one person;
7、Easy to ensure installation quality: The installation quality of the wire clamp is easy to ensure, with strong consistency and no need for specialized training. It can be inspected with the naked eye and has a simple and beautiful appearance;
8、Strong universality: can be used in conjunction with various fittings (see installation manual for details);
9、Sufficient gripping force: The wire clamp has a sturdy twisting ring, which can provide sufficient gripping force for wires such as steel core aluminum stranded wire, aluminum stranded wire, and aluminum alloy stranded wire, and has a larger range of applicable wire sizes.
Design：
1、Aluminium Clad Steel rods can protect and provide cushioning to the OPGW cables.
2、will not cause undue stress to the OPGW cables due to the special design of helical rods, therefore, the normal lifetime of cable system is ensured.
FAQs：
1. What is the production process of the guy grip dead end?
Step 1: Cutting machines cut the aluminum or steel wire into an ideal length, then the aluminum or steel wire will be performed into the helical shape.
Step 2: Use a cable tie to pack the aluminum or short steel wire pieces together, then the bundled wire is dipped in glue. Dry up the bundled wire and then cut off the cable’ s tire. And dip all the wires in glue again.
Step 3: Spray sanding: sanding is needed to enhance the strength of its grips.
Step 4: the middle part of the wires is made to stand and bent into two legs.
2. How to install the guy grip dead end?
Step 1: Install the thimble clevis and insert one leg of the guy grip dead end.
Step 2: Make the two legs of the dead end cable grips parallel. Make a color label on the cable, pay attention to the guy grip color mark should fit the label on the cable to grab the legs of the guy grip.
Step 3: Grab the guy grip dead end again to ensure the cable is fully wrapped by the preformed grip.
Ordering Notice:
a、Choose the appropriate tension clamp based on the ultimate tensile strength and outer diameter of OPGW optical cable.
b、Quantity configuration: 1 set/terminal tower (including gantry); 2 sets/tension tower, angle greater than 25 ° and OPGW connecting tower.
c、The standard configuration of this wire clamp is based on the right-handed twisting direction of the outermost layer of OPGW. If the outermost twisting direction of OPGW is left-handed, it should be specified in the purchase contract.
d、After withstanding full tension, it is recommended to use this wire clamp in one go.
