Cable Jointing Introduction
Welcome to Xi'an OUKAMU's product page for our innovative Cable Jointing solutions. OKM provides reliable low voltage cable jointing solutions for connecting and protecting low-voltage cables in building, infrastructure, industrial and outdoor electrical applications. Read on to discover why our joint technology is the perfect choice for your needs.
At Xi'an OUKAMU, we are proud to introduce our groundbreaking integrated T-connector, a pioneering solution in the joint technology. Since its invention in 2015, our integrated T-connector has revolutionized the way multi-core main cables and branch cables are connected. Designed with convenience, safety, and aesthetics in mind, this product ensures a quick, reliable, and beautiful connection right at the construction site.

Cable Jointing
Flame-Retardant Type: Designed for T-junctions of flame-retardant cables, injection-moulded from high-quality reinforced, flame-retardant, and high-temperature-resistant engineering plastic insulation.
Fire-Resistant Type: Designed for T-junctions of fire-resistant (including mineral-insulated fire-resistant) cables, fabricated from fired mineral insulating refractory materials, capable of withstanding temperatures in excess of 1500°C.
Sealing and Waterproofing System
The sealing system helps protect the cable branch connection from moisture, dust and external environmental conditions.
The sealing components are designed to work with the integrated branch joint structure, providing insulation and sealing around the cable connection area.
The sealing system is suitable for low-voltage cable branching applications in indoor and outdoor environments. The actual protection level depends on the selected product configuration and installation conditions.

Housing Combustion Test
OUKAMU integrated cable branch connectors demonstrated outstanding performance in high-temperature combustion tests and successfully passed inspection by the National Center for Quality Supervision and Testing of Fire-Resistant Building Materials.

Product Performance
•Fire Resistance Performance: When exposed to fire at temperatures of 750 °C to 800 °C for 90 minutes, the circuit integrity is maintained throughout the exposure.
•Ingress Protection Rating: IP65 – provides complete protection against solid foreign objects and dust, and is resistant to rain and water jets; suitable for non‑immersion applications.
•Insulation Resistance: At 90 % relative humidity, with a test voltage of 1 kV applied, the phase‑to‑phase insulation resistance exceeds 10 000 MΩ.
•Dielectric Withstand Voltage: At 90 % relative humidity, with an applied voltage of 3.5 kV for 5 minutes, no phase‑to‑phase breakdown or flashover occurs.
•Standards Compliance: The product meets the requirements for conductor continuity, circuit integrity, thermal cycling tests, and other specified parameters as set forth in:
• GB/T 19216.21‑2003 "Tests on electric cables or optical fibre cables under fire conditions – Circuit integrity – Part 21: Test procedures and requirements – Cables rated voltage up to and including 0.6/1 kV";
• and Q/OKM01‑2018 *"Integrated branch devices with rated voltage 0.6/1 kV".
•Certified Testing: The product has been successfully tested and certified by the National Engineering Laboratory for High‑Speed Railway Construction Technology, the National Center for Quality Supervision and Testing of Fire Building Materials, the National Quality Supervision and Testing Center for Wire and Cable, and Oukamu Electric Co., Ltd., with all tests passed.
•Flame retardancy: After the supply flame is removed (flame application time 30s), the self-extinguishing time is less than 15s.
•Protection rating: IP65 (prevents ingress of foreign objects, dust, rain, and jet water; suitable for non-immersion applications).
•Insulation resistance: At 90% humidity, test voltage 1kV, phase-to-phase insulation resistance > 2000MΩ.
•Withstand voltage: At 90% humidity, applied voltage 3.5kV for 5 minutes, no phase-to-phase breakdown.
•Complies with the requirements of JB/T10636-2006 "Copper-core plastic-insulated prefabricated branch cables with rated voltage 0.6/1kV" and Q/OKM01-2018 "Integrated branch devices with rated voltage 0.6/1kV" for conductor continuity, vertical burning, thermal cycling tests, and other standard requirements.
•Certified and tested qualified by the National Engineering Laboratory for High-Speed Railway Construction Technology, the National Center for Quality Supervision and Testing of Fire Building Materials, the National Quality Supervision and Testing Center for Wire and Cable, and Oukamu Electric Co., Ltd.
Dimension

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) |
Rated Current(A) |
Size L*W*H(mm) |
||
|
Copper Core |
Aluminum Alloy Core |
|||||
|
ZR-JFZ-16/10 |
4~16 |
1.5~10 |
0.6/1 |
72 |
/ |
260*105*65 |
|
ZR-JFZ-35/16 |
10~35 |
2.5~16 |
0.6/1 |
95 |
76 |
325*140*75 |
|
ZR-JFZ-70/35 |
25~70 |
2.5~35 |
0.6/1 |
150 |
120 |
365*170*105 |
|
ZR-JFZ-95/35 |
35~95 |
2.5~35 |
0.6/1 |
150 |
120 |
375*175*110 |
|
ZR-JFZ-120/35 |
50~120 |
2.5~35 |
0.6/1 |
150 |
120 |
380*180*115 |
|
ZR-JFZ-150/50 |
50~150 |
6~50 |
0.6/1 |
190 |
152 |
425*185*115 |
|
ZR-JFZ-185/35 |
70~185 |
2.5~35 |
0.6/1 |
150 |
120 |
430*190*120 |
|
ZR-JFZ-95/70 |
35~95 |
16~70 |
0.6/1 |
240 |
190 |
440*190*120 |
|
ZR-JFZ-240/70 |
95~240 |
6~70 |
0.6/1 |
240 |
190 |
460*210*130 |
|
ZR-JFZ-185/95 |
70~185 |
10~95 |
0.6/1 |
290 |
230 |
515*230*140 |
|
ZR-JFZ-300/95 |
120~300 |
10~95 |
0.6/1 |
290 |
230 |
515*230*140 |
|
ZR-JFZ-240/120 |
95~240 |
50~120 |
0.6/1 |
340 |
280 |
520*240*145 |
Installation Steps










Installation Video Link: https://www.youtube.com/@OKMBranchCableIPC
Installation Video Link: https://www.youtube.com/@OKMBranchCableIPC
Advantages
Our integrated T-connector offers a host of benefits that set it apart from traditional cable jointing methods:
- On-Site Flexibility: Perform branch connections at any position without the need for pre-cutting the main cable.
- Integrated Design: Enjoy a safe, reliable, and visually appealing solution that combines several features into one compact unit.
- Space Efficiency: The compact structure allows for installation in both open areas and within cable bridges, saving valuable space.
- Convenient Maintenance: Our design allows for easy maintenance and is reusable, making it a cost-effective choice.
- Durability: With insulation, flame retardant, fire resistance, dustproofing, anti-aging, and anti-electrochemical corrosion features, our connector is built to last.
- Cost Savings: By saving cable length, reducing building area requirements, and minimizing labor costs, our solution offers a low overall cost.
Technical Features
Our integrated T-connector is engineered for top performance with the following technical features:
- No Main Cable Cutting: The main cable remains intact during the connection process.
- Integrated Connection: Both the main and branch cables are connected on a flame-retardant/fire-resistant insulated body.
- Sealed Insulation: The branch line is fully insulated and sealed, ensuring maximum safety and efficiency.
Application
The integrated T-connector is ideal for various applications, including:
- Low-Voltage Cable Systems: Perfect for connecting low-voltage flame-retardant, fire-resistant, and mineral-insulated fire-resistant cables.
- Construction Sites: Streamline cable connections during construction projects, enhancing safety and efficiency.
- Industrial Settings: Suitable for industrial environments where reliable and durable cable connections are crucial.
OEM Service
At Xi'an OUKAMU, we offer comprehensive OEM services to meet your specific requirements. Whether you need custom designs or specific modifications, our team is dedicated to providing solutions tailored to your needs. Contact us to discuss how we can assist you in achieving your project goals.
FAQ
Q1. What is cable jointing?
A cable joint is used to connect and protect electrical cables, providing insulation and mechanical protection for reliable cable connections.
Q2. What types of cables can be used with OKM cable jointing solutions?
OKM cable jointing solutions are designed for low-voltage cable applications and can be selected according to cable size, conductor configuration and connection requirements.
Q3. Are OKM cable joints waterproof?
Selected OKM cable jointing solutions provide waterproof protection and are suitable for outdoor and underground applications when the specified installation requirements are followed.
Q4. Can the main cable be cut when using an OKM cable jointing solution?
The applicable OKM cable jointing solutions are designed to provide cable connection without unnecessarily cutting the main cable. The exact connection method depends on the product and application.
Q5. Where can low-voltage cable jointing solutions be used?
They can be used in buildings, infrastructure, industrial facilities, tunnels, outdoor electrical installations and other low-voltage cable applications.
Contact Us
Ready to enhance your product solutions with our innovative products? Contact Xi'an OUKAMU today to learn more about our integrated T-connectors and how they can benefit your projects. Reach out to us at info@okmbranchcable.com for personalized assistance and further information.
By choosing Xi'an OUKAMU's product solutions, you are investing in cutting-edge technology that ensures reliability, safety, and efficiency. Let us help you streamline your cable connections with our advanced integrated T-connector.

















