Aluminum Wedge Connectors, Aluminum Wedge Type Tap Connectors
Bolted Wedge Tap Connectors for Aluminum-to-Aluminum and Aluminum-to-Copper Overhead Line Connections
Cable Glands India manufactures Aluminum Wedge Connectors, also known as wedge type tap connectors or bolted wedge clamps, cast from high-strength aluminum alloy for making full-tension and tap connections on ACSR, AAC and AAAC overhead conductors without specialized compression tooling. The C-shaped body and driven wedge design allow quick, tool-free installation using a standard wrench or shear-head bolt, at US$ 8.50/kilogram CIF/FOB Indian port, for power utilities, EPC transmission and distribution contractors and line hardware distributors worldwide.
Product Overview
Aluminum Wedge Connectors are bolted, reusable tap and splice connectors that use a driven aluminum wedge to create constant clamping pressure between the main run conductor and a tap or jumper conductor. Unlike fired-on (explosive) wedge connectors that require blast cartridges and specialized tooling, bolted wedge connectors are installed by simply tightening a bolt that drives the wedge into the C-shaped body, making the installation process safer and faster for line crews without compromising long-term connection reliability.
The C-shaped body of the connector is manufactured from high-strength aluminum casting alloy, providing a spring-like mechanical characteristic that keeps the wedge under constant compressive load even as the conductors expand and contract through daily and seasonal thermal cycling. This elastic behavior of the C-body is what distinguishes wedge connectors from simple bolted clamps, allowing the connection to self-adjust and maintain contact pressure over decades of outdoor service.
Cable Glands India supplies wedge connectors for aluminum-to-aluminum full-tension splices, aluminum-to-aluminum taps, and aluminum-to-copper taps (with tin-plated wedge and body construction to manage bimetallic corrosion), sized to match ACSR, AAC and AAAC conductor combinations across a wide range of main-to-tap conductor size ratios, from small distribution taps to large sub-transmission conductor connections.
A key installation feature is the shear-head or breakaway bolt fitted to many wedge connector designs, which shears off at a pre-calibrated torque once correct wedge compression is achieved, giving the line crew a clear, unambiguous visual and tactile confirmation of correct installation without requiring a calibrated torque wrench in the field.
Wedge connectors are prefilled with an oxide-inhibiting joint compound at the wedge-to-conductor interface as standard, preventing the formation of high-resistance aluminum oxide film and ensuring low, stable contact resistance across the rated current range of the connector for the life of the installation.
Because the wedge and body are separable from the conductor by backing out and removing the bolt, wedge connectors are also reusable and removable for maintenance, conductor re-tensioning or connector replacement, unlike compression sleeves which are permanent and destructive to remove.
Key Features
- Bolted wedge design, no specialized compression tooling or explosive cartridges required
- High-strength aluminum C-body casting for constant clamping pressure through thermal cycling
- Shear-head bolt option for tactile confirmation of correct installation torque
- Prefilled with oxide-inhibiting joint compound at the wedge interface
- Priced at US$ 8.50/kilogram, sized to any ACSR/AAC/AAAC conductor combination
- Reusable and removable for maintenance or conductor re-tensioning
C-Body Elastic Clamping Design
The high-strength aluminum casting alloy used in the C-shaped body is selected to operate within its elastic range under the wedge-driven load, allowing the connector to maintain constant compressive force on the conductor despite thermal expansion and contraction, a key reliability advantage over simple rigid bolted clamps.
Shear-Head Bolt Installation Confirmation
Where fitted, the shear-head bolt is calibrated to break away at the torque corresponding to correct wedge seating, giving linemen immediate confirmation that the connection has been properly installed without needing a calibrated torque wrench at height or on a hot stick.
Aluminum-to-Copper Tap Compatibility
Tin-plated wedge and body variants are available for aluminum-to-copper tap connections, reducing the bimetallic corrosion risk that would otherwise occur at a direct aluminum-copper interface exposed to moisture and temperature cycling in outdoor service.
Full-Tension and Tap Configurations
Wedge connectors are supplied in full-tension splice configurations for joining two sections of the same conductor under full line tension, and in tap configurations for connecting a smaller tap or jumper conductor to a continuous main run conductor without cutting the main line.
Reusable, Maintainable Connection
Unlike compression sleeves that permanently deform the conductor strands, wedge connectors can be removed by backing out the bolt and driving out the wedge, allowing conductor re-tensioning, connector inspection or replacement without discarding and re-terminating the conductor.
Export Quality and Documentation
All wedge connectors are supplied with mill test certificates, dimensional inspection reports and conductor size compatibility charts, packed for long-distance export shipment to utility warehouses and line hardware distributors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Aluminum Alloy Casting (Body and Wedge) |
| Conductor Type | ACSR, AAC, AAAC (Copper tap variant tin-plated) |
| Installation | Bolted wedge, shear-head bolt option |
| Connection Type | Full-tension splice or tap connection |
| Surface Treatment | Bare Mill Finish or Tin Plated, oxide-inhibiting compound prefilled |
| Standard Reference | ANSI C119.4 (dimensional/performance reference) |
| Price | US$ 8.50/kilogram, CIF/FOB Indian port |
Aluminum Casting Alloy Grades
| Grade | Composition | Typical Use |
|---|---|---|
| LM6 / A413 | Al-Si eutectic casting alloy | C-body castings, high fluidity |
| A360 / LM24 | Al-Si-Cu die casting alloy | High-strength wedge and body components |
International Equivalent Standards
| Country/Region | Standard Body | Equivalent Reference |
|---|---|---|
| USA | ANSI | ANSI C119.4 |
| International | IEC | IEC 61238-1 (connector performance) |
| India | BIS | IS 5561 (reference, overhead line hardware) |
Product Types and Variants
| Type | Description |
|---|---|
| Wedge Tap Connector | Connects tap/jumper conductor to continuous main line |
| Wedge Splice Connector | Full-tension splice of two conductor ends |
| Wedge Stirrup Connector | Dead-end/stirrup style wedge connection |
| Aluminum-to-Copper Wedge Connector | Tin-plated variant for bimetallic taps |
Applications in Industry
| Sector | Application |
|---|---|
| Power Utilities | Distribution and sub-transmission conductor taps and splices |
| EPC / Line Construction | New line construction and conductor stringing |
| Utility Maintenance | Conductor repair, re-tensioning and jumper replacement |
Manufacturing Process
Key process stages: (1) aluminum alloy melting and gravity or pressure die casting of the C-body and wedge; (2) trimming of casting flash; (3) CNC machining of the wedge seating surface, bolt bore and conductor grooves; (4) surface finishing (bare or tin plated); (5) prefilling with oxide-inhibiting joint compound; (6) shear-head or standard bolt assembly; (7) functional wedge-drive testing; (8) dimensional inspection and packing.
Quality Standards and Certifications
- ISO 9001:2015 certified manufacturing facility
- Dimensional reference to ANSI C119.4
- 100% functional testing of wedge-drive and shear-head bolt mechanism
- Mill test certificates and casting inspection reports available on request
Why Choose Cable Glands India
- In-house aluminum casting, CNC machining and finishing under one roof in Jamnagar, India
- Custom sizing for any main-to-tap conductor combination, aluminum or aluminum-to-copper
- Competitive export pricing at US$ 8.50/kilogram
- Bulk utility stores supply and smaller EPC lot supply, no fixed minimum order quantity
- Full documentation package for customs clearance and utility procurement approval
Frequently Asked Questions
What is an aluminum wedge connector used for?
It is used to make a bolted, reusable tap or splice connection between overhead conductors, using a driven wedge for constant clamping pressure without specialized compression tooling.
How is a wedge connector different from a compression sleeve?
A wedge connector is bolted and reusable, installed and removed with a simple bolt, while a compression sleeve is permanently crimped onto the conductor and cannot be removed without cutting.
Can wedge connectors be used on aluminum-to-copper connections?
Yes, tin-plated wedge and body variants are available specifically for aluminum-to-copper tap connections.
What is a shear-head bolt?
It is a bolt calibrated to break away at the torque corresponding to correct wedge seating, giving a clear indication of proper installation.
What is the price of aluminum wedge connectors?
Standard pricing is US$ 8.50/kilogram CIF/FOB Indian port, depending on size and order quantity.
What standard governs wedge connector performance?
ANSI C119.4 is the common reference standard for connector performance and current-cycling test requirements.
Are wedge connectors reusable?
Yes, the bolt can be backed out to remove the wedge, allowing the connector to be reinstalled or replaced during maintenance.
What conductor types are compatible?
ACSR, AAC and AAAC conductors are supported, with tin-plated variants for copper tap conductors.
Is joint compound required?
Wedge connectors are supplied prefilled with oxide-inhibiting joint compound as standard, so no separate application is required at installation.
Do you provide mill certificates?
Yes, mill test certificates and dimensional inspection reports are issued with every export shipment.
Equivalent Terms in Other Languages
| Language | Equivalent Terms |
|---|---|
| Spanish | Conectores de cuna de aluminio, Conector de derivacion tipo cuna, Grapa de cuna atornillada |
| Russian | Алюминиевые клиновые соединители, Болтовое клиновое соединение |
| French | Connecteurs a coin en aluminium, Connecteur de derivation a coin, Pince a coin boulonnee |
| Portuguese | Conectores de cunha de aluminio, Conector de derivacao tipo cunha, Grampo de cunha parafusado |
| Italian | Connettori a cuneo in alluminio, Connettore di derivazione a cuneo, Morsetto a cuneo imbullonato |
Related Aluminum and Line Hardware Products
- Aluminum Hotline Clamps
- Aluminum Lay-in Lugs, Aluminum Lay-in Ground Lugs
- Hotline Clamps, Bronze Hotline Clamps
- Aluminum Terminal Bars, Aluminum Grounding Bars
Request a Quote
Cable Glands India supplies Aluminum Wedge Connectors and Aluminum Wedge Type Tap Connectors to power utilities, EPC contractors and line hardware distributors worldwide at US$ 8.50/kilogram. Submit your main and tap conductor sizes and quantity for a formal export quotation. Email: sales@cableglandsindia.com | Phone: +91-22-43449300