Insulated Piercing connector FOR abc cable

What is an ABC Cable Special Insulation Piercing Connector? Read this and you'll understand.
If you need to connect wires in your home or community, you must have heard of the "insulation piercing connector" - especially when connecting ABC cables (overhead insulated cables), it is almost an essential tool. Today, I'll explain it in simple terms: what it can do, how it differs from ordinary insulation connectors, and how to remove it if installed incorrectly. I guarantee that after reading this article, you'll have a good understanding of it. 

1.What exactly is an Insulation Piercing Connector (ABC Cable Specific) used for?
In simple terms, it is a "quick connector" for "wiring" ABC cables.
When wiring cables with insulation, one usually has to strip the outer insulation, connect the wires, and then wrap insulating tape around them, which is both troublesome and prone to leakage. However, the insulation piercing connector does not require stripping the insulation: just press it onto the cable, and the metal teeth inside will "pierce" through the insulation layer to directly contact the copper or aluminum core for conduction. At the same time, the outer shell provides its own insulation protection - saving the trouble of stripping the wire, preventing electric shock and rainwater, making it particularly suitable for outdoor ABC cable wiring (such as in residential power supply and street lighting lines). 

2.. Insulated Piercing Connectors ≠ Ordinary Insulated Connectors, Don't Confuse Them!
Many people tend to think that "insulated piercing connectors" and "insulated connectors" are the same thing, but in fact, they are different wiring tools:
Insulated Piercing Connectors: No need to strip the wire. They conduct electricity by "piercing through the insulation". They are mainly known for "no stripping, quick connection" and are suitable for on-site wiring of cables like ABC with insulation layers.
Ordinary Insulated Connectors: The wire's outer insulation needs to be stripped first, then the exposed wire core is inserted or twisted together, and finally wrapped with an insulated housing - it's like "connect the core first, then insulate", and is more suitable for indoor wiring of ordinary wires. 

3.. Installed the Insulation Piercing Connector Incorrectly? Here's How to Remove It Safely
If you've connected the wires wrongly or the connector is broken, don't yank it off (it may damage the cable). The correct steps are simple:
First, turn off the power! (Important! Make sure to switch off the corresponding power switch to avoid electric shock.)
Locate the clamping mechanism: Most insulation piercing connectors have a fixed clip or small screw on the side. Use a screwdriver to pry open the clip or loosen the screw.
Gently remove the connector: Once the clip is loose, slowly take the connector off the cable. If the sharp teeth are stuck tightly, gently shake it left and right, but don't pull the cable hard.
Check the cable: After removal, inspect the cable's insulation for any damage. If it's damaged, wrap it with insulating tape.