Gel Filled Cable Joints
Specialised in branch cable connector for 20 years
IP68 Waterproof
Suitable for main cable 25~70mm, branch cable 2.5~16mm
Gel-filled insulation and waterproof, double safety protection
Concealed installation in wells or direct buried soil
No need to cut the main cable, no need to reserve lengths
Flexible installation location
Low overall cost, high cost performance
Gel Filled Cable Joints - Professional Waterproof Branch Connection Solution
Xi'an OUKAMU Power Technology Co., Ltd. specializes in Gel Filled Cable Joints with over 150 national invention patents and 20 years of manufacturing expertise. Our Model L-GJFZ-70/16 branch connector features IP68 waterproof protection, supporting main cables from 25mm to 70mm and branch cables from 2.5mm to 16mm. The gel-filled insulation system provides double safety protection without cutting the main cable, enabling flexible on-site installation in cable wells or direct burial applications. This innovative solution has been successfully deployed in over 10,000 infrastructure projects worldwide.
What Are Gel Filled Cable Joints?
The products are innovative waterproof cable connection solutions for low-voltage electrical networks. Unlike standard dry cable couplings, they utilise specific gel compositions to seal against moisture penetration and entry of water.
Gel-filled technology offers better protection for underground and outdoor systems. The sealing gel fills all gaps within the joint housing, covers the internal components and forms a complete moisture barrier. This provides long term reliability when used in harsh situations such direct burial, cable wells and high humidity sites.
Our branch junction solutions enable technicians to make T-connections without cutting the main cable conductor. This maintains the original current-carrying capability and mechanical robustness of your primary distribution line.
Key Features and Benefits
Exceptional Waterproof Performance
Integrated gel-filling process offers IP68-grade protection. Your cable cores are fully sealed to guard against water damage, electrical leakage and environmental pollution.
Our joints are well suited for cable wells, underground burial and other severe installation situations with this thorough sealing design. The system remains steady even when fully immersed.
Flexible Installation Without Pre-Measuring
You are able to alter the branch placements during on-site construction. There is no need for advance customisation or accurate measurements which makes the installation much easier for you.
The no-cut design ensures main cable integrity during the branching process. This saves time, labour and possible problem points in the installation.
Increased Safety and Fire Protection
Our fire resistant variants provide improved safety performance for essential applications. The integrated sealing hides cable cores for a safer and more professional installation.
The system efficiently raises the fire safety rating of your electrical network. This type of security is very important in commercial buildings, apartment buildings, subways and public utilities.
Economical and Space Saving
Additional junction boxes and connection gear are not required because the main cable is retained. You will save on materials and installation costs and so lower the overall project cost.
Compact joint design for optimised cable routing schemes. This method of saving space improves the use of the building and makes the electrical systems cleaner and more organised.
Parameters
|
MODEL
|
Specification (cross-sectional area of cable core conductors (mm²)
|
Technical Parameters
|
|||
|
Main Cable
（2~5 Cores）
|
Branch Cable
(2~5 Cores)
|
Rated Voltage
(kV)
|
Subloaded Current
(A)
|
Size
L*W*H(mm)
|
|
|
T-GJFZ-16/10
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4~16
|
1.5~10
|
0.6/1
|
71
|
205*100*85
|
|
T-GJFZ-35/16
|
10~35
|
2.5~16
|
0.6/1
|
95
|
270*115*100
|
|
T-GJFZ-70/16
|
25~70
|
2.5~16
|
0.6/1
|
95
|
310*125*115
|
|
L-GJFZ-35/16
|
10~35
|
2.5~16
|
0.6/1
|
70
|
270*115*100
|
|
L-GJFZ-70/16
|
25~70
|
2.5~16
|
0.6/1
|
70
|
310*125*115
|
Application Scenarios
Our Gel Filled Cable Joints serve diverse low-voltage distribution requirements across multiple industries. The products excel in both new construction and renovation projects.
Industrial and Commercial Buildings: Factory floors, shopping centers, and office complexes benefit from flexible branch positioning and reliable connections.
Residential Infrastructure: Apartment buildings and housing developments gain from space-saving designs and maintenance-free operation.
Transportation Projects: Metro systems, railway stations, and tunnel lighting installations require the superior waterproofing our joints provide.
Public Facilities: Hospitals, schools, sports centers, and government buildings depend on safe, code-compliant electrical connections.
The uncut main cable design makes these joints ideal for upgrading existing electrical systems. You can enhance insulation and waterproofing without major reconstruction work.
Installation Advantages
Easy & Effective Process
Simple jointing process which your installation team will appreciate. Built-in connectors and snap-close housing design make every connection quicker.
The working time is drastically minimised compared to traditional procedures. Less technicians can finish more joints per day enhancing your project timeline and profitability.
Compatible with Different Cables
Our joints function with single and multi-core wires flawlessly. Stranded or solid conductors, polymeric or paper insulation, the system is customised to your exact requirements.
The product range comprises 10 mm to 300 mm cables. At each branch joint, pre-installed connectors are provided for the branch cable maximum capacity.
Reliable Long-Term Performance
Complete encapsulation with two-part polyurethane resin ensures perfect electrical insulation. Mechanical protection avoids physical harm during and after installation.
Minimal maintenance is required of the joint during its life. The sealed design means no routine inspections are needed, which saves you money on operating costs.
Why Choose OUKAMU Gel Filled Cable Joints?
Proven Track Record
Our technology has been installed in landmark projects including the Hong Kong-Zhuhai-Macao Bridge, multiple high-speed railways, and metro systems across China. This real-world performance demonstrates reliability you can trust.
Over 10,000 successful project implementations validate our engineering excellence. Electrical designers, contractors, and facility managers consistently specify OUKAMU products for critical applications.
Innovation-Driven Development
With proprietary cable branch connection technology protected by 20-year invention patents, we deliver truly unique solutions. Our engineering team continuously advances connection system capabilities.
This innovation leadership means you benefit from cutting-edge designs unavailable from standard suppliers. Your installations gain competitive advantages through superior technology.
Comprehensive Quality Assurance
Every product undergoes rigorous testing before shipment. We verify electrical performance, waterproof integrity, and mechanical strength to ensure consistent quality.
Our manufacturing processes follow strict quality control protocols. You receive the products that meet international standards and exceed installation requirements.
FAQ
Q: What makes gel-filled cable joints different from dry cable joints?
A: Gel-filled joints use specialized sealing gel to block moisture and prevent water ingress, while dry cables rely on water-blocking binders. The gel provides superior long-term waterproofing, especially for direct burial and submersible applications. Our gel compounds are non-toxic and remain stable across wide temperature ranges.
Q: Can I install these joints without cutting my main distribution cable?
A: Yes, absolutely. Our branch joint design specifically preserves main cable continuity. You tap into the conductor without severing it, maintaining full current-carrying capacity. This unique feature reduces failure risks and simplifies future system modifications.
Q: How long does the gel-filled resin take to cure?
A: Curing time varies with ambient temperature. At 25°C, the resin typically cures within 6-12 hours. In colder conditions (around 5°C), allow up to 48 hours for complete curing. We recommend leaving installations undisturbed for 24 hours regardless of temperature to ensure optimal bonding.
Q: Are these joints suitable for fire-resistant cable systems?
A: Yes, we offer specialized fire-resistant models designed for enhanced safety performance. These variants maintain connection integrity during fire conditions, improving your overall fire protection rating. They're ideal for buildings with stringent fire safety requirements.
Q: What cable insulation types are compatible with your joints?
A: Our gel-filled resin system bonds excellently with PVC, XLPE, polyethylene, and paper cable insulations. The joints accommodate both armored and non-armored cables, making them versatile for various distribution network configurations.
Q: Do I need special tools for installation?
A: No specialized equipment is required. The transparent polycarbonate housing features a snap-to-close design for quick assembly. Standard electrical tools and your existing jointing skills are sufficient for professional installations.
Contact Us
Ready to upgrade your Gel Filled Cable Joints connection systems? Contact our technical team at info@okmbranchcable.com for product specifications, pricing, and application support today.
