The Al Parallel Groove Clamp represents a specialized solution for connecting and branching aluminum conductors in overhead power distribution systems, combining lightweight construction with reliable performance.
APG
Mingxu
Precision-forged from high-strength 6063-T5 aluminum alloy, this clamp features parallel serrated grooves that create multiple contact points with conductors, ensuring low-resistance connections even under vibration. Compliant with GB/T 2314-2008 and IEC 61238-1 standards, it accommodates conductor combinations from 16 mm² to 400 mm² in overhead lines operating up to 10 kV. Its innovative design eliminates the need for crimping or soldering, making it a preferred choice for utility companies and electrical contractors working on overhead distribution networks.
Manufactured from 6063-T5 aluminum alloy, the clamp delivers an optimal balance of strength (tensile strength ≥205 MPa) and conductivity (≥50% IACS). This alloy formulation provides excellent corrosion resistance and formability, ensuring the clamp maintains its mechanical and electrical properties through decades of outdoor exposure.
The clamp features transverse serrated grooves that create multiple parallel contact points with conductors, maximizing contact area and minimizing resistance. This design accommodates conductor size mismatches up to 3:1 ratio, providing versatility in branch connections. The dual-bolt design applies uniform pressure across the conductor interface, ensuring consistent performance.
The aluminum surface undergoes a electrochemical polishing treatment followed by clear anodizing (10-15 µm thickness), providing superior resistance to UV radiation, atmospheric corrosion, and temperature extremes. Stainless steel hardware (A2-70 grade) prevents galling and ensures reliable torque retention in outdoor environments.
Utility companies utilize the clamp for tapping and branching connections in overhead power distribution networks, connecting service drops to main lines and facilitating conductor size transitions.
In rural electrification initiatives, the clamp provides cost-effective conductor connections that withstand the environmental challenges of remote outdoor installations.
The clamp connects aluminum conductors in overhead collection systems for solar farms and wind energy parks, supporting the integration of renewable energy into the distribution grid.
The clamp supports aluminum conductor combinations where the main conductor and branch conductor sizes range from 16 mm² to 400 mm², with a maximum size ratio of 3:1 between main and branch conductors.
Installation requires a torque wrench capable of delivering 15-35 N·m depending on clamp size, along with a wire brush for cleaning conductor surfaces before installation. No specialized training or equipment is needed beyond standard lineworker tools.
The serrated grooves penetrate oxide layers on aluminum conductors, ensuring intimate metal-to-metal contact. The constant pressure from the stainless steel bolts prevents re-formation of high-resistance oxide layers at the contact interface.
When installed within rated parameters, the clamp provides a service life of 25+ years in overhead applications. The anodized finish and stainless steel hardware resist corrosion through thousands of thermal cycles and environmental changes.
| Size(mm²) | Sort | Package(pcs) | Gross weight(kg) |
| Al 16-70 | Single bolt | 300 | 16 |
| Al 16-150 | Single bolt | 300 | 25 |
| Al6-35 | Doub e bolt | 360 | 17 |
| Al 16-70 | Doub e bolt | 200 | 23.5 |
| Al 16-150 | Doub e bolt | 240 | 34.5 |
| Al 25-240 | Doub e bolt | 120 | 35.5 |
| Al 16-70 | Tri-bolt | 150 | 25.5 |
| Al 16-150 | Tri-bolt | 150 | 32 |
| Al 25-240 | Tri-bolt | 64 | 27 |
| Al 35-300 | Tri-bolt | 48 | 27.5 |
>> Drawing Sheet
| Item No. | Bolt | Conductor (mm²) | L | A | R | ||
| JBL-A-1 | 1 | 16-70 | 42 | 36 | 5.5 | ||
| JBL-A-2 | 1 | 16-120 | 45 | 44 | 7 | ||
| JBL-A-3 | 2 | 16-120 | 70 | 44 | 7 | ||
| JBL-A-4 | 1 | 50-240 | 50 | 62.5 | 10.5 | ||
| JBL-A-5 | 2 | 50-240 | 70 | 62.5 | 10.5 | ||
| JBL-B-1 | 2 | 16-120 | 45 | 45 | 7.5 | ||
| JBL-B-2 | 2 | 50-240 | 45 | 60 | 10.5 | ||
Precision-forged from high-strength 6063-T5 aluminum alloy, this clamp features parallel serrated grooves that create multiple contact points with conductors, ensuring low-resistance connections even under vibration. Compliant with GB/T 2314-2008 and IEC 61238-1 standards, it accommodates conductor combinations from 16 mm² to 400 mm² in overhead lines operating up to 10 kV. Its innovative design eliminates the need for crimping or soldering, making it a preferred choice for utility companies and electrical contractors working on overhead distribution networks.
Manufactured from 6063-T5 aluminum alloy, the clamp delivers an optimal balance of strength (tensile strength ≥205 MPa) and conductivity (≥50% IACS). This alloy formulation provides excellent corrosion resistance and formability, ensuring the clamp maintains its mechanical and electrical properties through decades of outdoor exposure.
The clamp features transverse serrated grooves that create multiple parallel contact points with conductors, maximizing contact area and minimizing resistance. This design accommodates conductor size mismatches up to 3:1 ratio, providing versatility in branch connections. The dual-bolt design applies uniform pressure across the conductor interface, ensuring consistent performance.
The aluminum surface undergoes a electrochemical polishing treatment followed by clear anodizing (10-15 µm thickness), providing superior resistance to UV radiation, atmospheric corrosion, and temperature extremes. Stainless steel hardware (A2-70 grade) prevents galling and ensures reliable torque retention in outdoor environments.
Utility companies utilize the clamp for tapping and branching connections in overhead power distribution networks, connecting service drops to main lines and facilitating conductor size transitions.
In rural electrification initiatives, the clamp provides cost-effective conductor connections that withstand the environmental challenges of remote outdoor installations.
The clamp connects aluminum conductors in overhead collection systems for solar farms and wind energy parks, supporting the integration of renewable energy into the distribution grid.
The clamp supports aluminum conductor combinations where the main conductor and branch conductor sizes range from 16 mm² to 400 mm², with a maximum size ratio of 3:1 between main and branch conductors.
Installation requires a torque wrench capable of delivering 15-35 N·m depending on clamp size, along with a wire brush for cleaning conductor surfaces before installation. No specialized training or equipment is needed beyond standard lineworker tools.
The serrated grooves penetrate oxide layers on aluminum conductors, ensuring intimate metal-to-metal contact. The constant pressure from the stainless steel bolts prevents re-formation of high-resistance oxide layers at the contact interface.
When installed within rated parameters, the clamp provides a service life of 25+ years in overhead applications. The anodized finish and stainless steel hardware resist corrosion through thousands of thermal cycles and environmental changes.
| Size(mm²) | Sort | Package(pcs) | Gross weight(kg) |
| Al 16-70 | Single bolt | 300 | 16 |
| Al 16-150 | Single bolt | 300 | 25 |
| Al6-35 | Doub e bolt | 360 | 17 |
| Al 16-70 | Doub e bolt | 200 | 23.5 |
| Al 16-150 | Doub e bolt | 240 | 34.5 |
| Al 25-240 | Doub e bolt | 120 | 35.5 |
| Al 16-70 | Tri-bolt | 150 | 25.5 |
| Al 16-150 | Tri-bolt | 150 | 32 |
| Al 25-240 | Tri-bolt | 64 | 27 |
| Al 35-300 | Tri-bolt | 48 | 27.5 |
>> Drawing Sheet
| Item No. | Bolt | Conductor (mm²) | L | A | R | ||
| JBL-A-1 | 1 | 16-70 | 42 | 36 | 5.5 | ||
| JBL-A-2 | 1 | 16-120 | 45 | 44 | 7 | ||
| JBL-A-3 | 2 | 16-120 | 70 | 44 | 7 | ||
| JBL-A-4 | 1 | 50-240 | 50 | 62.5 | 10.5 | ||
| JBL-A-5 | 2 | 50-240 | 70 | 62.5 | 10.5 | ||
| JBL-B-1 | 2 | 16-120 | 45 | 45 | 7.5 | ||
| JBL-B-2 | 2 | 50-240 | 45 | 60 | 10.5 | ||
