JCB Series Insulation-Piercing Connectors

• Direct insulation penetration without the need for stripping

• Torque-controlled shearing bolts for error-free installation

• Perfectly suited for copper-aluminium transition connections

Our piercing connectors are meticulously engineered to solve the most pressing challenges faced by electrical engineers and grid installation teams. By focusing on rapid deployment and uncompromising safety, these clamps elevate the standard of modern power distribution.

• It is not necessary to strip the insulation layer of the wire during installation;

• Use the sharp teeth of the wire clamp to directly penetrate the insulation layer of the wire and bite the wire body together;

• The puncture clip uses torque bolts and is not controlled by human factors.

• Specially designed contact teeth ensure an exceptionally good touch surface, maximizing electrical conductivity.

• Engineered to facilitate the highly demanding transition connection between copper and aluminium conductors without galvanic corrosion.

• Compact structural design allows for seamless installation in confined spaces, such as narrow building distribution shafts or underground trenches.

• Advanced Penetration Mechanics: The specialized contact teeth are forged from high-strength conductive alloys. They are precisely angled to slice through tough polymer jackets and establish a gas-tight micro-weld with the inner conductor, preventing oxidation.

• Time-Saving Architecture: By entirely eliminating the jacket-stripping phase, installation crews can complete connections in a fraction of the time. This rapid-deployment capability drastically cuts labor expenses and minimizes grid downtime.

• Weather-Sealed Housing: The exterior shell is molded from UV-resistant, flame-retardant fiberglass-reinforced polymer. It feels exceptionally rigid to the touch and provides a formidable barrier against heavy rain, freezing temperatures, and intense solar radiation.

Selecting the right hardware is critical for large-scale engineering projects. Our comprehensive matrix of models ensures that you have the exact fit for any voltage requirement and cable dimension, eliminating guesswork from your procurement process.

• Extensive Cross-Section Range: The main line compatibility stretches from a delicate 2.5 mm² all the way up to a massive 240 mm², while branch lines are supported from 1.5 mm² to 240 mm².

• Bimetallic Excellence: The internal components are treated to perfectly manage the copper-aluminium transition connection. This prevents the dreaded galvanic corrosion that typically destroys standard clamps, ensuring decades of reliable service.

• Standardized Torque Ratings: Depending on the specific model, the built-in shear bolts are calibrated to snap off precisely at 18 N.m, 30 N.m, or 40 N.m, providing the exact mechanical force required for optimal conductivity.

In large-scale infrastructure deployments, human error during installation can lead to catastrophic grid failures. We have engineered this clamp to be entirely foolproof, putting control back into the hands of project managers and ensuring uniform quality across the board.

• Elimination of Under/Over-Tightening: By relying on mechanical physics rather than human judgment, the clamp prevents the crushing of delicate wire cores (over-tightening) and eliminates loose, arcing connections (under-tightening).

• Parallel Alignment Guides: The internal channels naturally guide the main and branch lines into perfect parallel alignment, preventing wire crossing and ensuring maximum surface area contact for the piercing teeth.

Versatility is at the heart of the JCB Series. These connectors are not just components; they are comprehensive solutions engineered to adapt to a vast array of complex field environments and distribution challenges.

• Overhead Low-Voltage Networks: Perfectly suited for suspending and connecting aerial insulated cables, withstanding high winds and constant vibrational stress without losing grip.

• Urban Streetlight Distribution: The compact nature of the clamp makes it the ideal choice for the tight confines of streetlight poles, providing reliable branch connections for municipal lighting grids.

• Building Power Systems: Essential for routing power through commercial high-rises and residential complexes, ensuring safe, fire-resistant branching at every floor level.

• Underground Cable Branching: When combined with appropriate waterproof resins or heat-shrink enclosures, the clamp’s robust bite provides a secure foundation for subterranean power distribution.

• Pro-Tip for Cable Extension: When utilizing a puncture clip for linear cable extension, it is strictly prohibited to bear radial tension. We highly recommend using two puncture clips at a continuous point to safely distribute and withstand the radial tension of the heavy cable.

We refuse to leave safety to chance. Before any batch of puncture clamps is approved for global dispatch, it must survive a grueling gauntlet of laboratory and field-simulated tests, proving its worth under extreme duress.

• Dielectric Voltage Withstand Tests: Each clamp design is submerged in water and subjected to massive voltage spikes to ensure the polymer housing provides absolute insulation and zero current leakage.

• Mechanical Pull and Tensile Testing: The bite strength of the contact teeth is tested using industrial hydraulic pullers, ensuring the connection remains solid even under severe mechanical stress and cable weight.

• Thermal Cycling and Aging: Clamps are baked in high-temperature ovens and immediately frozen in cryogenic chambers. This simulates decades of seasonal weather changes, proving the housing will not crack, warp, or degrade.

To assist your engineering and procurement teams in making an informed decision, we have compiled the most critical technical inquiries regarding our fourth-generation piercing connectors.

Q: What should be paid attention to when using a puncture clip?

A: When tightening the puncture clamp of the double torque nut, the two nuts should be alternately tightened to maintain pressure balance as much as possible. The cable should be clamped in the middle of the arc of the puncture cable clamp, and should not be visually elevated. When using a puncture clip for cable extension, it is strictly prohibited to bear radial tension. Suggest using two puncture clips at a continuous point to withstand the radial tension of the cable.

Q: How does the clamp prevent galvanic corrosion between copper and aluminum wires?

A: The internal contact teeth are manufactured from a specially treated bimetallic alloy and are often pre-coated with a highly conductive, anti-oxidizing dielectric compound. This creates a neutral bridge that completely neutralizes the galvanic reaction typically caused when dissimilar metals interact.

Q: How do I know when the clamp is tightened correctly?

A: The clamp features an integrated torque-control mechanism. You simply turn the top nut using a standard wrench. Once the optimal clamping pressure (e.g., 18, 30, or 40 N.m depending on the model) is reached, the top of the nut will physically shear off with a loud snap. The installation is then complete and perfectly calibrated.

Q: Are these clamps reusable if a network needs to be re-routed?

A: No. For strict safety and performance reasons, insulation piercing connectors are designed for single-use permanent installation. Once the shear bolt has snapped and the teeth have pierced the jacket to form a micro-weld with the conductor, the clamp cannot be removed and reused without compromising the integrity of the connection and the weather seal.

Installation and maintenance require qualified personnel and an approved method for the equipment and site. Insulated housings or tools alone do not authorize work on energized circuits.