Heat-Shrinkable Cable Joints
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 10,000 units per month
1. Our cable joints for power equipment can handle power systems ranging from 1kV low voltage up to 36kV high voltage and can meet different requirements for cable connections.
2. Heat shrinkable cable joints offer good insulation, sealing, and protection performance, which guarantees the safe operation of high voltage power transmission systems at a minimum.
3. Our cable glands are perfect for building, industry, urban power grids, substations, and other types of power transmission and distribution.
Traditional connection methods are prone to degradation in insulation performance due to moisture intrusion, temperature changes, mechanical damage and other factors, leading to leakage, short circuits and operational failures. At the same time, different voltage levels and application scenarios have higher adaptation requirements for cable connection accessories, and ordinary protection solutions are difficult to meet the long-term use needs of complex power projects.
Professional Solution:
In response to the problem of protecting cable connection parts, our heatshrink cable joints are made of high-performance heat shrinkable materials such as cross-linked polyolefin (XLPO). They are heated and shrunk to tightly cover the cable connection area to form a continuous and stable insulation, sealing and mechanical protection layer. The products can cover 1kV low voltage to 36kV high voltage power systems, effectively improving the moisture resistance, protection and long-term operation stability of cable joints.
Product Meaning:
Heatshrink cable joints are cable accessories used for power cable connection, repair and insulation protection. They are suitable for power systems with different voltage levels from 1kV low voltage to 36kV high voltage. The product is made of heat-shrinkable materials such as cross-linked polyolefin (XLPO). After heating, it can tightly cover the cable joint to form a reliable insulation, sealing and mechanical protection layer.

Product Parameters:
| Voltage | Core | Cross Sections(mm²) | Kit No. |
| Low Pressure | |||
| 0.6/1kV jiont | 1,2,3,4 | 4-6 | 0.6/1kVRSJ-4(5,3,2,1)/(-1) |
| 10-16 | 0.6/1kVRSJ-4(5,3,2,1)/0 | ||
| 25-50 | 0.6/1kVRSJ-4(5,3,2,1)/1 | ||
| 70-120 | 0.6/1kVRSJ-4(5,3,2,1)/2 | ||
| 150-240 | 0.6/1kVRSJ-4(5,3,2,1)/3 | ||
| 300-400 | 0.6/1kVRSJ-4(5,3,2,1)/4 | ||
| High Pressure | |||
| 36kV | 1-Core | 50mm²-95mm² | 36kV RSJY1/1 |
| 120mm²-185mm² | 36kV RSJY1/2 | ||
| 240mm²-400mm² | 36kV RSJY1/3 | ||
| 3-Core | 50mm²-95mm² | 36kV RSJY3/1 | |
| 120mm²-185mm² | 36kV RSJY3/2 | ||
| 240mm²-400mm² | 36kV RSJY3/3 | ||
Advantages of Heat Shrinkable Cable Joints:
· Superior Insulation Performance:
Cable joints for power systems form a uniform and reliable insulation layer, effectively reducing the risks of leakage, partial discharge, and electrical faults, ensuring the safe operation of the power system.
· High Environmental Adaptability:
Cable glands have excellent moisture-proof, corrosion-proof, UV-resistant and high and low temperature resistance properties, and can be used for a long time in various complex environments.
· Convenient and Efficient Installation:
Our heat-shrinkable installation method eliminates the need for complex equipment or cumbersome processes, effectively improving construction efficiency and reducing installation costs.
· Stable and Reliable Operation:
After heat shrinking, the product tightly wraps around the cable connection, providing reliable insulation and sealing protection, enhancing the long-term stability of the cable connection.
· Wide Range of Applications:
Our heat shrinkable power cable joints are suitable for power systems from 1kV low voltage to 36kV high voltage, and are widely used in building power distribution, industrial power supply, urban power grids, substations, and power transmission and distribution projects.

Applications of Heat Shrinkable Power Cable Joints:
1. Daily Lighting and Electricity Supply: Including lighting, sockets, and general electric power for different homes, shopping centers, and offices.
2. Industrial and Factory Power Distribution: Supplying electricity to motors, conveyors, and control cabinets in production workshops.
3. City Infrastructure and Municipal Electric Network: It mainly comprises low-voltage street lighting systems and community micro-grids, designed to endure changes in the outdoor humidity and temperatures. On one hand, there is also a high-voltage main electric grid of town and ring main units connecting one to another, such systems should ensure their operation remains stable for long without requiring maintenance.
4. Transportation and Energy Hubs: Withstanding vibrations and significant temperature differences generated by train operation; 36kV three-core connectors are used in high-power sections.
5. Substations (including smart substations): Connecting circuit breakers, transformers, and busbars; preventing electric arcing and enabling online monitoring.
About Us:
Established in 1986, we have devoted almost four decades, or 40 years, to the Cable Accessories Industry. During this time, our company has grown into one of the best enterprises combining R&D, manufacturing and customized services.
Our production capacity is supported by a modern factory of 10,000 m2 and more than 40 units specialized equipment (such as 13 extruders line, 10 oil expanders, and 5 air expanders). Besides a professional technical staff of 200 plus, we are able to manufacture over 10,000 pieces of heat-shrinkable cable terminations per month.

Technical Aspects:
Relying on the research strength of the Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, we have built a complete quality assurance system. We are ISO 9001:2015 certified (No. 00123Q36311R5M/2200), and our products hold CE, SGS, and IEC certificates, fully complying with international environmental directives such as RoHS and REACH. All shipped products undergo dual verification by independent quality inspection departments and third-party type testing, accompanied by complete test reports, ensuring traceability of quality.

International Market:
Our cable accessories have been sold in more than a score of countries and regions, such as Saudi Arabia Turkey, UAE, Indonesia, and Brazil. While on the other side, our adhesive products have made into the market of the European Union. Long time business partner includes Raychem (supplying tens of thousands of meters of ultra-thickness three layer co-extruded heat shrinkable composite hose), 3M (customized tens of thousands of rolls of insulation tape), and ABB (almost 1 million meters of low voltage heat shrinkable tubing) which completely illustrates the confidence placed in us by some of the best world corporations.
Exhibition Highlights:
During the 2024 Middle East International Power & Energy Exhibition, our business presented a complete variety of cable accessories which include those for medium and low voltage levels in conjunction with high voltage up to 220kV. In addition, we offered different comprehensive sets of solutions that can be applied in various fields such as electricity transportation and distribution, railway operations, and the renewable energy sector.
The exhibition highlighted our all-round capability, covering the complete spectrum of supply chain, namely: technological research, precise production, and stringent quality checks.

FAQ:
1. How to handle each layer of tubing during installation?
The heat shrinkable power cable joint features independent functional layers such as the insulation tube and sheath. During installation, these layers are sequentially inserted and heated to shrink each other. Each layer functions independently for specific protection needs, forming a multi-layered protection system.
2. How to ensure operator safety in high-voltage applications?
In high-voltage scenarios such as 36kV, the product possesses excellent insulation and withstand voltage performance, effectively preventing arcing. It can also integrate temperature sensing capabilities, linking with monitoring systems to achieve real-time online monitoring of the joint's operating status.






