Product and Technical FAQ

The right cable cleat should be selected according to the cable type, cable diameter, cable arrangement and mechanical requirements of the installation.

Avantar provides three cable-cleat solutions, all manufactured to IEC 61914:

• Trefoil Cable Cleats - Designed for three single-core cables installed in a trefoil arrangement. Cable diameter range: 20 mm-100 mm. Short-circuit withstand up to 85 kA peak. Material options: LSFH polymer, aluminum alloy or stainless steel.
• Single Cable Cleats - Designed for individual cable fixation and support on cable trays and ladders. Cable diameter range: 10 mm-90 mm. Operating temperature: -40℃ to +120℃. Material: LSFH PA66 polymer.
• Armoured Cable Cleats - Designed for XLPE and SWA steel-wire-armoured cables requiring heavy-duty mechanical restraint. Cable diameter range: 20 mm-120 mm. Short-circuit withstand up to 100 kA peak. Material options: aluminum alloy or stainless steel 316.

Short-circuit withstand is another important selection factor for power-cable installations. The cleat must be capable of restraining the cable under the mechanical forces generated during a short circuit.

Customers should therefore provide the cable outer diameter, cable construction, number and arrangement of cables, installation method and required short-circuit withstand level.

For customized or project-specific cable cleats, providing the cable datasheet or installation drawing allows the product configuration to be evaluated more accurately. 

The minimum useful information is the product name, required quantity and technical specification.

Additional information depends on the product:

• For copper busbars - Provide material, dimensions (thickness, width, length), current requirement, hole pattern, bending configuration and surface treatment (bare / tin-plated / nickel-plated / silver-plated).
• For cable lugs and terminals - Provide conductor cross-section (1.5 mm²-1000 mm²), stud hole size (M4-M20), terminal type (OT / UT / DT / DIN 46235) and barrel style (standard / long).
• For cable accessories - Provide cable type, cable diameter, conductor size, voltage rating (10 kV / 20 kV / 35 kV for terminations) and installation environment.
• For cable cleats - Provide cable outer diameter, cable arrangement (single / trefoil / armoured) and required short-circuit withstand level.
• For cable glands - Provide cable construction (armoured / unarmoured), cable diameter (3 mm-50 mm), thread requirements (Metric M12-M63 / PG7-PG48 / NPT) and required protection level (IP66 / IP68).
• For transformer cooling products - Provide transformer capacity (kVA / MVA), cooling method (ONAN / ONAF / OFWF), available drawings, radiator dimensions and site ambient conditions. Note: all transformer cooling parts are custom-built, no standard stock units.
• For grounding products - Provide grounding-system requirements, rod diameter and length, material preference (copper-clad steel / solid copper / hot-dip galvanized), soil conditions and installation method.
• For composite insulators and overhead-line fittings - Provide rated voltage (15 kV-500 kV for suspension / up to 220 kV for deadend), mechanical load (70 kN-400 kN for suspension / 70 kN or 120 kN for deadend), conductor type (ACSR / AAC / AAAC, 16 mm²-600 mm²) or line configuration and applicable project standards.

If the product is customized, a technical drawing is strongly recommended. Complete technical information helps reduce unnecessary clarification during quotation and sample development. 

Material selection varies according to the function and operating requirements of each product.

The copper busbar range uses copper materials including T2 copper (99.90% Cu minimum), with the flexible laminated copper busbar product specified with T2 copper or oxygen-free copper. Surface options include bare copper, tin plating and, where specified, silver plating.

Solid copper busbars use T2 pure copper (100% IACS conductivity), while cable lugs and transition lugs use copper, aluminum or copper-aluminum combinations according to their intended connection. Aluminum cable lugs use 99.7% high-purity aluminum alloy.

Grounding products include copper-clad steel (0.254 mm minimum copper cladding, ≥600 MPa tensile strength), solid copper (99.9% pure electrolytic copper) and hot-dip galvanized steel (ASTM A123, minimum 610 g/m² zinc coating) options.

Preformed overhead-line fittings use galvanized steel or aluminum-clad steel wire, while composite insulators use fiberglass-reinforced epoxy (FRP) core rods with silicone rubber sheds.
Cable glands are available in nickel-plated brass, SS304 stainless steel or nylon PA66. Cable cleats use LSFH polymer, aluminum alloy or stainless steel depending on the type.

Material selection should be based on electrical conductivity, mechanical strength, corrosion resistance, insulation requirements and the actual installation environment.

Customers with a specified material standard can provide it during the quotation stage so that the applicable material can be confirmed for the selected product. 

Yes. The current product range includes products for medium-voltage and high-voltage electrical applications.

The Cold-Shrink Silicone Cable Termination range includes configurations for 10 kV, 20 kV and 35 kV XLPE-insulated cable applications. Each kit contains the main silicone tube, stress cone, sealing parts and all necessary installation accessories.

The Composite Suspension Insulator range covers overhead-line applications with rated-voltage configurations from 15 kV up to 500 kV, with mechanical failure-load ratings from 70 kN to 400 kN.

The Composite Deadend (Strain) Insulator range supports rated voltages up to 220 kV, with mechanical ratings of 70 kN and 120 kN.

The appropriate high-voltage component should not be selected by voltage rating alone. Rated voltage, mechanical load, insulation requirements, creepage distance, conductor configuration, installation environment and applicable standards may all affect selection.

For a medium- or high-voltage project, customers should provide the system voltage, equipment or cable type, mechanical requirements and relevant project specification before ordering.