How Can Piercing Clamps Achieve Precise Piercing In Buried And Overhead Power Lines?
The biggest problem with cable branch connections is the tedious stripping process. In situations like this, insulation piercing comes in handy. The core logic of this small accessory is that it bypasses the cumbersome stripping steps.
The Mystery of Contact Beneath the Insulation Layer
Many people are curious about how it contacts the conductor core. Simply put, the insulation piercing clamp clamp can pierce the insulation layer of a branch cable using rows of sharp alloy contact blades. When you tighten the torque nut, these blades engage like teeth, penetrating the outer rubber or PVC protective shell.
The depth of penetration is controlled by the torque nut. The moment the nut breaks indicates that the contact has penetrated into the conductor.
Structural Disassembly During Installation of the Piercing Clamp
When operating this ipc cable connector clamp on a construction site, pay attention to these structural components:
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Torque Control Nut: This is the "brain" that controls the pressure.
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Waterproof Sealing Washer: After the blade pierces the surface, this washer tightly seals the opening.
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High-strength insulating shell: Supports the entire structure against outdoor elements.
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Anti-oxidation contact pieces: Typically a tin alloy, responsible for current transmission.
The actual logic of branch cable connection:
When making a T-junction, the main line and branch line are inserted into the same clamp. At this point, the ipc insulation piercing connector can pierce the insulation layer on the branch cable, simultaneously completing the physical connection between the two cables. This connection method does not require cutting the main line; it can be done directly while the cable is energized.
Many people find pre-branch cable clamps difficult to handle, but as long as you position them correctly and tighten the torque to the correct level, the piercing feedback is very clear. Compared to traditional potting or tape wrapping, this physical piercing structure is more stable.
Why piercing depth is a technical skill:
If the piercing is too shallow, the resistance will increase, and overheating will be inevitable. If the piercing is too deep, it may damage the number of wire strands inside. Therefore, the 555 clamp design standard is to solve this balance point.
When using low-voltage clamps, remember to choose those with protective covers. After all, once the piercing clamp can pierce the insulation layer on the branch cable, the small hole needs to be sealed by the outer casing to hold it together; otherwise, water ingress would be a problem.
