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Hebei Zite Electrical Equipment Co., Ltd.: A Shining Star in the Electrical Equipment Industry

High-strength socket head bolts for steel structures

Tension Clamps

Product Description: Tension clamps are key equipment for overhead lines (power conductors, optical cables), mainly installed on tension towers, terminal towers, or angle towers. They secure conductors/optical cables, transmitting their full tension, while connecting to towers and insulati...

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Description

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Product Description:

Tension clamps are key equipment for overhead lines (power conductors, optical cables), mainly installed on tension towers, terminal towers, or angle towers. They secure conductors/optical cables, transmitting their full tension, while connecting to towers and insulation strings to ensure line stability under heavy loads and at angles.

Main Structure and Working Principle:

The structure of tension clamps is based on "high-strength force transmission" and "reliable clamping", requiring them to withstand the full tension of the line — unlike suspension clamps, which serve solely as hangers.

Basic Structure:

Consists of three main components: the clamp body (main frame bearing tension), clamping elements (e.g., wedges, pressure plates, pre-twisted wires for securing conductors/cables), and connecting fittings (e.g., suspension rings, cup-head hangers for connecting insulation strings or towers).

Some models (e.g., wedge-type, compression-type) are equipped with a "load transmission channel", which ensures uniform distribution of conductor/cable tension through the clamping components to the body, then transmits it to the tower via connecting fittings, preventing local stress concentration.

Working Principle:

Through "mechanical clamping" or "compression fixing", the clamp forms a reliable connection with the conductor/cable. The clamping force must withstand the nominal breaking force of the conductor/cable (usually the holding force is required to be ≥90% of the nominal breaking force).

During line operation, all tensile forces acting on the conductor/optical cable (resulting from its own weight, wind loads, and ice loads) are borne by the tension clamp. At the same time, these forces are transmitted to the insulation string and tower through connecting fittings, limiting the displacement of the conductor/cable and ensuring stable line sag.

Material and Performance Requirements:

Materials and performance must meet the requirements of "high strength, aging resistance, and corrosion resistance", suitable for long-term operation in harsh outdoor conditions.

Main Materials

Clamp Body:

For power conductors: mainly hot-dip galvanized ductile iron casting (e.g., KT30-6) or high-strength aluminum alloy (e.g., 6061-T6). The former has excellent shear resistance, while the latter is lightweight and suitable for large-cross-section conductors.

For optical cables (e.g., OPGW, ADSS): mainly stainless steel (304/316) or thickened aluminum alloy, requiring both protection of the optical cable sheath and corrosion resistance (especially in coastal or chemical environments).

Clamping Components:

Wedge blocks, pressure plates: made of aluminum alloy or carbon steel with anti-slip surface treatment (e.g., knurling) to increase friction with conductors/optical cables;

Pre-twisted wires: made of the same material as the conductor/optical cable (e.g., aluminum-clad steel, aluminum alloy), fixed by spiral winding to ensure high compatibility and conductor protection.

Connecting Parts:

Suspension rings, bolts, etc., made of hot-dip galvanized carbon steel or stainless steel to ensure connection strength and prevent load transmission failure due to corrosion.

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Products

Welcome to our Iraqi clients for the factory inspection! The products have passed the test, and the fuse holders are being shipped in full truckloads!

Continue to deepen research and development and market development to lay the foundation for development.

Clarify three core development strategies and solidify future growth directions

Continue to deepen product research and development and expand the market.

Hebei Zite Electrical Equipment Co., Ltd.: Achievements in the Electric Power Industry and New Frontiers of Development

Hebei Zite Electrical Equipment Co., Ltd.: A Shining Star in the Electrical Equipment Industry

Tension Clamps

Description

marker

Product Description:

Main Structure and Working Principle:

Material and Performance Requirements:

contact us

Related popular products

Iron Electrical Fittings

High-strength socket head bolts for steel structures

Crossarm braces

American Standard Steel Foot

O-rings

Curved washers

Galvanized steel ground rods

Grade 4.8 nuts

Forked ties

Hairpin Hook

Insulator Fittings

Optical Cable Fasteners

Round gaskets

Steel Supports

Optical Cable Suspension Clamps

Spiral shank bolts

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