Cold-shrink Cable Termination
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 20,000 per month
1. Cold-shrink terminations are ideal for power systems rated from 1 kV to 36 kV and provide the necessary insulation and sealing for cables at low, medium, and high voltage.
2. As the cold-shrink product is constructed from pre-expanded silicone rubber, it enables very quick and easy installation without the use of open flame heating or special heat-shrink equipment.
3. Cold-shrink terminations of this type have been subjected to extensive performance testing which includes AC voltage withstanding, partial discharge, impulse voltage, thermal cycle and it is only upon the successful completion of these tests that the terminations are able to guarantee safe and long-lasting operation.
At the stages when power systems, distribution lines or renewable energy installations are being constructed, traditional cable termination techniques usually involve the use of flame heating, manual bending or rather involved installation operations. Not only these approaches lead to low installation speed, they are also strongly dependent on external factors such as the environment, the available space and the skill level of the workman. In case the sealing is not adequately done or stress control is insufficient, partial discharge, insulation deterioration and in the worst cases even a breakdown of the dielectric could occur.
Our Solution:
Our termination solution involves the use of silicone rubber material that gets pre-expanded and then compressed, making the cold shrink installation super easy. The process consists of merely pulling out the internal support core and letting the shrinking work done thanks to elasticity of the material without need for external heating devices or open fires.
The product guarantees a constant and uniform radial pressure thereby completely preventing air gaps and at the same time greatly improvement of the electric field. Besides, a tight seal and insulation, waterproof protection can be achieved through these features. This combination leads to a durable and safe terminating protection system for power distribution lines.
Product Specifications:
Test Items | Unit | Requirements | Test Results | |
Sample 1 | Sample 2 | |||
AC Voltage Test (39 kV, 5 min) | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
AC Voltage Test (Wet, 35 kV, 1 min) | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
Partial Discharge Test at Ambient Temperature (15 kV) | pC | ≤10 | <0.6 / <0.6 / <0.6 | <0.6 / <0.6 / <0.6 |
Impulse Voltage Test (95℃~100℃, ±95 kV, 10 times each polarity) | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
Heating Cycles Test in Air (22 kV, 95℃~100℃, 5h heating + 3h cooling per cycle, 60 cycles total) | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
Partial Discharge Test at High Temperature (95℃~100℃, 15 kV) | pC | ≤10 | <0.6 / <0.6 / <0.6 | <0.6 / <0.6 / <0.6 |
Partial Discharge Test at Ambient Temperature (15 kV) - Post-cycle | pC | ≤10 | <0.6 / <0.6 / <0.6 | <0.6 / <0.6 / <0.6 |
Impulse Voltage Test (±95 kV, 10 times each polarity) - Post-cycle | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
AC Voltage Test (22 kV, 15 min) - Post-cycle | No breakdown or flashover | Passed / Passed / Passed | Passed / Passed / Passed | |
Examination | No substantial damage | No substantial damage | ||
Product Advantages:
1. Easy installation; no heat required.
Cold shrinkable cable ends come with a pre-factory compressed silicone rubber core that doesn't require heating appliances for installation. When it is put in place, removing the support rod, letting the part shrink naturally and hold in place. Such a feature allows shorter work time, more efficient performance, and safer environment for workers, which is why these terminals are often recommended where installation is limited with regards to space, where a worker is required to work at the height or the risk of the workplace explosion is very high.
2. Electrical insulation and stress control capabilities.
The shrinkable cold termination kits use a tried and tested stress control design that effectively equalizes the electric field distribution in the area of the cable termination, thus significantly diminishing the chances of partial discharge and insulation aging. Test results of partial discharge are under 0.6 pC - more than 1/20th of the standard limitation of ≤10 pC - and products have successfully passed tests that are very tough such as 39 kV AC withstand voltage, ±95 kV lightning impulse and 60 thermal cycles - which ensure the long-term, stable performance of cables.
3. Excellent environmental sealing performance.
One of the advantages of the silicone rubber material is that it can return to its shape quickly after the stress, providing constant, even radial force to the cable and consequently safeguarding it from water, moisture, dust, and other foreign matter. Furthermore, the material is highly resistant to UV radiation and ozone as well as to weather and chemicals - which makes the product very durable outdoors on the farm or in the industrial areas.
4. Long service life and maintenance-free operation.
Our cold shrinkable termination kits keep a consistent seals once installed. They are so well made that there is no problem of air entering, loosening or even tracking, corrosion, and insulation aging as the main causes. It will also not affect your system even when subjected to high-temperature cycling or electrical testing. It means that you will not have to maintain it very frequently or pay too much long-term maintenance and operation costs as these termination kits are of reliable quality and they will increase the operational reliability of the electrical power distribution system as a whole.
Product Applications:
1. Power transmission and distribution systems.
Used in urban and rural power grids, substations, distribution lines, and underground cable projects to provide reliable insulation and sealing protection for low-, medium-, and high-voltage cable terminations.
2. Power supply for industrial manufacturing and large-scale equipment.
Termination shrink kits for cold shrink are great for harsh industrial environments like factories, mines, steel production facilities, petrochemical industries, and railway systems. They are used for making cable terminals of big industrial electrical equipment, motors, control panels, and power circuits so that the electricity source remains reliable for longer.
3. Building and commercial power distribution projects.
Designed for use in power distribution systems at different premises like, house complexes, shopping malls, office buildings, hospitals, schools, and data centers, they provide safe and efficient means of cable termination for electrical cabinets, switchgears and power equipments.
4. New energy and infrastructure projects.
Termination kit cold shrink are ideal for wind power, photovoltaic (PV) power generator, energy storage stations, Charging, infrastructure, and other new energy projects. They keep great insulation, water proofing and weather protection and even in harsh outdoor environments, they keep the power systems running steadily for a long time
About Us:
Established in 1986, our company boasts four decades of industry experience. We currently operate a production facility spanning over 10,000 square meters, staffed by more than 200 professionals and equipped with over 40 production units. We have established comprehensive R&D, production, and quality management systems to deliver stable, reliable products to customers worldwide.
We have 5 molding machines and 3 injection molding machines for the production of cold shrink cable terminals/connectors. With dedicated production lines and large-scale production capabilities we process all kind of orders effectively. For example the monthly capacity for cold-shrink cable terminations is about 20,000 pieces. It means that we could supply big quantities of cable terminations and provide long-term project delivery on stable and efficient levels.
Strict Quality Management.
We are ISO 9001:2015 certified. Our products comply with international standards such as CE, SGS, and IEC, as well as environmental regulations like RoHS and REACH. We provide relevant test reports and certification documentation upon request to facilitate smooth market entry for our products.
OEM/ODM Customization Services.
Apesides from offering standard products, we also provide OEM/ODM customization. We deliver personalized solutions according to customer; requirements on size, material, performance, packaging, and branding, thereby we support various flexible products for different projects.
Global Service.
With a stable product quality and strong production capability, we established collaborations with many global companies such as RAYCHEM, 3M, ABB, Shell. We export a vast volume of cable accessories to countries and regions worldwide, including Saudi Arabia, Turkey, and Iran (Middle East); India and Malaysia (Southeast Asia); and Brazil and Argentina (South America).
Exhibitions and Events.
We have long been deeply engaged in the international market, participating in globally influential industry exhibitions such as the Shanghai Electric Power Exhibition, Mexico Electric Power Exhibition, Hannover Messe, and Dubai Electric Power Exhibition. We continuously monitor technical developments and procurement trends across regional markets, establishing ongoing communication channels that span Asia, the Americas, Europe, and the Middle East.
FAQ:
1. Are cold shrink cable terminations suitable for harsh outdoor environments?
Correct. Fabricated completely in silicone rubber, they are excellent in waterproofing, moisture resistance, UV resistance, weatherability, and corrosion resistance which makes them ideal for outdoor power distribution, new energy applications, and industrial use.
2. Do cold shrink cable terminations require heating equipment for installation?
No. The product utilizes pre-expanded silicone rubber cold-shrink technology; installation is completed through automatic shrinking simply by removing the support core, making the process safer and more convenient.
