What is the main function of the puncture clamp?

In China, the traditional methods mainly include: bus duct, distribution box, pre-branch cable, groove and wedge clamp, etc., while the insulation piercing clamp is a new cable branch method after the pre-branch cable, which has been widely used in developed countries such as Europe and the United States, and has been running safely and stably on the lines for more than 30 years.

1. Low-voltage (1kv) ordinary insulated puncture wire clamp.

It is used for overhead lines and low-voltage incoming cable branches. Applicable cable: copper or aluminum double-plastic cable (copper-aluminum transition can be made).

2. Low-voltage (1kV) double-plastic insulated puncture clamp.

It is used for overhead lines and low-voltage incoming cable branches. Applicable cable: copper or aluminum double-plastic cable (copper-aluminum transition can be made).

3. Low-voltage (1kV) fireproof insulated puncture clamp.

It is used for building power distribution, tunnel lighting and other engineering cable branches with fire protection requirements. Applicable cables: flame retardant or fire-resistant cables (copper and aluminum transitions are possible).

4. Street lamps and tunnel insulation puncture clamps.

It is used for street lights, tunnel power distribution system cable branches. Applicable cable: copper or aluminum insulated wire (copper-aluminum transition is possible).

5. Medium voltage (10kv) insulation puncture wire clamp.

For branches of 10kV overhead insulated cables. Applicable cable: copper or aluminum insulated wire (copper-aluminum transition is possible).

6. Overhead cable piercing line clamp grounding ring.

It is used for medium and low voltage overhead cable grounding discharge or electrical inspection.

When used in overhead cables, compared with traditional groove clamps or wedge clamps, it has:

It does not destroy the insulation layer of the wire, waterproof, anti-oxidation and maintenance-free, and truly achieves the insulation of the line.

Take electricity from the wire (cable), do not need to strip the wire, expose the conductor, the puncture wire clamp can pierce the insulator of the wire, and have good contact with the conductor, so as to draw out the electrical energy, and there is good insulation protection at the puncture site.

It is mainly used for cable branches. The cable branch is clamped with a piercing wire, and the cable does not need to be stripped, which is very convenient. It can also be used with a glue waterproof box. It can increase insulation, waterproofing and mechanical strength. Here's **, see for yourself.

Easy to install: no need to strip the insulating skin of the cable to make cable branches, and the joints are completely insulated. There is no need to cut the main cable, and the cable can be branched at any position. The installation is simple and reliable, only a socket wrench is used, and it can be installed with electricity.

Safe to use: The joint is torsion-resistant, shock-proof, waterproof, flame-retardant, anti-galvanic corrosion and aging, and does not require maintenance. It has been successfully used for more than 30 years.

Cost saving: The installation space is very small, saving the bridge and civil construction costs. For applications in construction, there is no need for terminal boxes, distribution boxes, and cable returns, saving cable investment. The cost of the cable + piercing clamp is lower than that of other power supply systems, and it is only plugged in.

About 40% of the bus bar is about 60% of the prefabricated branch cable.

1. Peel off the outer insulation layer of the main cable to expose a single cable;

2. Adjust the wire clamp nut to a suitable position and insert the insulating cap into the groove;

3. Insert the branch cable into the line card, so that the end of the cable is tightly protected by the protective cap;

4. Put the wire jacket plugged into the branch line on the main cable, and tighten the nut by hand;

5. The installation method of the other two line cards is the same, the positions are staggered with each other during installation, and finally the torque nut at the end of the line card is screwed off with a wrench to complete the installation of the line card;

There are many models of piercing clamps, which can basically meet the requirements of the current cable (less than 400 square meters) branches, and the volume of the clamps should be a little larger at the branch point.

The insulated puncture clamp is generally used when the trunk line is branched, and the insulated puncture clamp is used when the cable is connected.

The specific applications are as follows:

1. Overhead low-voltage insulated cable connection;

2. T connection of low-voltage insulated incoming cable;

3. T connection or connection of building power distribution system;

4. Underground low-voltage cable connection;

5. Street lamp distribution system connection· Ordinary cable field branching.

The role of the debater of the puncture clamp is as follows:

1. Overhead low-voltage insulated cable connection;

2. T connection of low-voltage insulated incoming cable;

3. T connection or connection of building power distribution system;

4. Underground low-voltage cable connection;

5. Connection of street lamp distribution system.

6. On-site branch of ordinary cables.

Advantages: easy installation, low cost, safe, reliable and maintenance-free. There is no need to cut off the main cable, no need to strip the insulation layer of the cable to do cable branching, the joint is completely insulated, can be live operation, and can be used as a field branch at any position of the cable.

There is no need to use terminal boxes or junction boxes. And the joint is resistant to twisting, shockproof, waterproof, and corrosion-proof aging. The use of insulated puncture clamps for cable branching has obvious comprehensive benefits and is more cost-effective than the traditional connection methods.

The T-terminal blocks have essentially the same function as pre-branch cables and piercing clamps, each with its own advantages.

The pre-branch cable is to pre-make the branch cable at the time of cable production, and directly branch and thread it during construction. The advantages are the most stable, the disadvantages are the highest, and the calculation is difficult and laborious.

The piercing clamp is to use the built-in piercing blade to open the sheath, pierce the cable insulation, snap into the main cable (in contact with copper), conduct electricity, and then penetrate the branch port in the clamp to access the sub-cable.

The T-terminal does not have a piercing blade, and needs to be stripped or resleeved and insulated. To put it simply, it is the principle of ordinary installation socket cavity destruction, which conducts electricity by crimping bare wires.

The puncture clamp is relatively large, the installation is simple and crude, the location of the electric well is large, and the cable model is very useful. The small size of the T-terminal is suitable for use in tight locations, even in the tray. Both can also be used together.

Dear, hello, the piercing wire clamp is a wire wiring method, it can save the step of wire stripping, the wire is pierced into the wire through the steel needle inside the clip, after pressurization, the steel needle can fix the copper core of the wire tightly, so that the wire and the clamp Bu Na establish a solid electrical connection. The following points need to be paid attention to when using the piercing clamp:1

Choose the right piercing clamp model. According to the cross-sectional size of the wire, the length of the copper core of the wire, the voltage and current that the piercing clamp can withstand, etc., the type of piercing clamp is selected. If the choice is not correct, it will lead to poor wire contact, wire falling off, and leading to safety accidents such as fire.

2.Develop the right wiring scheme. When using the puncture clamp for wiring, it is necessary to formulate a reasonable wiring scheme, pay attention to the vertical quality of the wire, and avoid the instability caused by the quality of the wire itself.

3.Use professional tools to apply pressure. Professional tools are required to apply sufficient pressure to ensure that the wire pins are firmly inserted into the piercing clamp to ensure a stable and reliable electrical connection.

4.Check the electrical connections regularly. The electrical connection using the puncture clamp should be checked regularly to confirm the connection between the wire and the clamp to avoid the danger caused by poor connection.

Summary. The insulation puncture wire clamp is mainly composed of a reinforced shell, a puncture blade, a gasket, a waterproof silicone grease, a high-strength bolt, a torque nut and a cable terminal cap sleeve, when the cable needs to be branched or connected, the cable branch wire terminal is inserted into the waterproof terminal cap sleeve, after determining the position of the main line branch, the torque nut on the wire clamp is twisted with a socket wrench, and the contact blade will pierce the cable insulation layer in the process, and the conductor is in contact, and the sealing gasket annular pressure around the position of the cable being punctured, the silicone grease overflow in the shell, when the torque reaches the set value, The nut torque mechanism falls off, the main line and branch line are connected, and the waterproof performance and electrical effect meet the parameters required by the standard.

The insulation puncture wire clamp is mainly composed of reinforced shell, puncture blade, gasket, waterproof silicone grease, high-strength bolts, torque nuts and cable terminal cap sleeves, when the cable needs to be branched or connected, the cable branch wire terminal is inserted into the waterproof terminal cap sleeve, after determining the position of the main line branch, use a socket wrench to twist the torque nut on the wire clamp, the contact blade in the process will be prepared to pierce the cable insulation, contact with the conductor, the gasket ring pressure around the cable puncture position, the shell quietly in the body silicone grease imitation transport out, When the torque reaches the set value, the nut torque mechanism falls off, the main line and branch line are connected, and the waterproof performance and electrical effect meet the parameters required by the standard.

Piercing clamps are auxiliary materials.