Low Voltage Cable Branch Joint
Low Voltage Cable Branch Joint – Product Description
OUKAMU Low Voltage Cable Branch Joint is designed to create a reliable branch connection from a main low-voltage cable without cutting the main cable. The branch connection can be installed at the required position on site, reducing the need to reserve cable length or determine the branch position in advance.
The integrated T-connector provides electrical connection, insulation and mechanical protection in one compact assembly. This design helps keep the cable system organized and reduces exposed connection points after installation.
The ZR-JFZ series covers multiple combinations of main cable and branch cable sizes for 0.6/1kV low-voltage electrical installations. It can be used in buildings, tunnels, industrial facilities, infrastructure and other low-voltage power distribution applications.
Integrated T-Connector for Low Voltage Cable Branching
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.
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.
•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.
Dimensions of Low Voltage Cable Branch Joint
The dimensions of the Low Voltage Cable Branch Joint vary according to the cable size and product model. Please refer to the dimensional drawing below for detailed measurements.
Low Voltage Cable Branch Joint Selection Guide
The ZR-JFZ series includes multiple models for different combinations of main cable and branch cable sizes. Select the appropriate Low Voltage Cable Branch Joint according to the main cable cross-sectional area and branch cable cross-sectional area.
|
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 |
Low Voltage Cable Branch Joint Installation
The Low Voltage Cable Branch Joint is designed for on-site installation. The following steps provide a general installation procedure. Always follow the applicable product installation instructions and project requirements.
1.Tools
2.Determine installation location
3.Open outer sheath
4.Strip main cable insulation
5.Installation of branch cable body
6.Overwrap open seams
7.Installation of branch cables
8.Snap-on protective housing
9.Lock and glue the cable outlet
10.Installation completed
Installation Video Link: https://www.tiktok.com/@okm_ipc_branch.cable
Installation Video Link:https://www.youtube.com/@OKMBranchCableIPC
Advantages of Low Voltage Cable Branch Joint
Flexible Branch Position
The branch connection can be installed at the required position on the main cable according to the actual project layout.
No Main Cable Cutting
The main cable does not need to be cut for branch connection, helping simplify on-site installation.
Reduced Cable Waste
There is no need to reserve a fixed branch position or additional cable length during the initial installation.
Compact Integrated Structure
Connection, insulation and protection are integrated into one compact branch joint, helping keep the cable installation organized.
Easy On-Site Installation
The branch joint is designed for on-site cable branching and can be installed according to the actual cable routing and project requirements.
Wide Application
Suitable for low-voltage cable branching in buildings, tunnels, industrial facilities, infrastructure and other electrical installations.
Technical Features of Low Voltage Cable Branch Joint
Integrated T-Connector: Combines cable connection and insulation in an integrated branch connection structure.
On-Site Branching: Allows branch connections to be installed at the required position on the main cable.
Main Cable Remains Uncut: Designed to make branch connections without cutting the main cable.
0.6/1kV Application: Suitable for low-voltage cable systems with a rated voltage of 0.6/1kV.
Multiple Cable Sizes: Available in different models for various main and branch cable cross-sectional areas.
Insulated and Protected Connection: Provides insulation and protection around the cable branch connection.
Indoor and Outdoor Applications: Suitable for buildings, tunnels, industrial facilities and infrastructure projects.
Low Voltage Cable Branch Joint Applications
OUKAMU Low Voltage Cable Branch Joint is designed for on-site branching of low-voltage power cables in a wide range of electrical installations.
Building Electrical Systems
Used for branching low-voltage power cables in residential buildings, commercial buildings, offices and other building electrical systems.
Tunnel Lighting and Power Distribution
Suitable for low-voltage cable branching in road tunnels, underground passages and other infrastructure projects.
Industrial Facilities
Used for cable branch connections in factories, workshops, warehouses and industrial facilities.
Infrastructure Projects
Suitable for low-voltage power distribution applications in bridges, public infrastructure and outdoor electrical installations.
Outdoor Electrical Installations
Can be used for appropriate outdoor low-voltage cable branching applications according to the selected product protection level and installation conditions.
OEM & Custom Low Voltage Cable Branch Joint Solutions
OUKAMU provides OEM and customized solutions for Low Voltage Cable Branch Joints according to customer cable specifications, application requirements and project conditions.
Customization may include product configuration, cable size combinations, labeling, packaging and technical documentation.
Our technical team can assist distributors, contractors, EPC companies and project customers with product selection and application requirements.
Low Voltage Cable Branch Joint FAQ
1. What is a low voltage cable branch joint?
A low voltage cable branch joint is a connection device used to create a branch from a main low-voltage cable to one or more branch cables. OUKAMU Low Voltage Cable Branch Joint uses an integrated T-connector for on-site cable branching.
2. Can the main cable be branched without cutting it?
Yes. The OUKAMU Low Voltage Cable Branch Joint is designed for branch connection without cutting the main cable, helping simplify on-site installation.
3. What voltage is the Low Voltage Cable Branch Joint suitable for?
The ZR-JFZ series is designed for 0.6/1kV low-voltage cable applications. The appropriate model should be selected according to the cable specifications and project requirements.
4. How do I select the correct cable branch joint model?
Select the model according to the cross-sectional areas of the main cable and branch cable. Refer to the ZR-JFZ product selection table on this page for available combinations.
5. Where can low voltage cable branch joints be used?
They can be used for low-voltage cable branching in buildings, tunnels, industrial facilities, infrastructure projects and suitable indoor or outdoor electrical installations.
Contact Us
For more information about our LV Cable Jointing solutions or to place an order, please reach out to us at info@okmbranchcable.com. Our team is ready to assist you with any inquiries and provide the support you need to achieve your project goals.
