Stress Control Mastic
- CCMT
- CHANGCHUN,CHINA
- Based on the order quantity
- 500,000 meters per month
1. Through our electrical insulating adhesive a highly uniform distribution of electrical field can be achieved in 15kV cable joints and terminals so that stress concentration is well eliminated.
2. A filler seal is used in our electrical stress control mastic for filling up the installation gaps tight, which minimizes the occurrence of partial discharge。
3. Our electrical stress control mastic demonstrates very good compatibility with polymer cables and hence offers longlasting and trustworthy insulation protection.
When 15kV power cable joints and terminals are being installed, electrical stress concentration tends to happen at the point where the outer semiconductive layer is broken. At the same time, gaps and voids created during laying can cause partial discharge. After many years of operation, these problems will readily lead to insulation deterioration and electrical breakdown of the power cable and accessories, in turn putting the safety and the reliability of the power system at risk.
Our electrical insulating adhesive was developed to match the requirements mainly at 15 kV high voltage cable joints and terminations. It ensures uniform distribution of electric field, reduces stress concentration in electric field, and eradicates installation gaps due to its excellent filling and sealing properties thereby preventing risks of discharge. Also, compatibility of the product with polymeric cables is quite acceptable leading to long-term stable insulation protection for cable joints and enhancing reliability on the power grid.
Introduction to Professional Grade Stress Control Mastic:
Cable stress control sealant is an electrical stress controlling material for power cable terminations and joints of the 15 kV cables. It ensures a uniform distribution of electric field, reduces concentrated stress by spreading electric stress over a larger area, and also functions as a filling and sealing material thereby enhancing the performance of insulation and the dependability of the cable connections.
Performance Indicators of Professional Grade Stress Control Mastic:
| Property | Teating Method | Typical Data |
| Density | ASTM D 792 | 1.1g/cm³ |
| Tensile Strength | ASTM D 638 | 0.18MPa |
| Ultimate Elongation | ASTM D 638 | 900% |
| Dielectric Strength | IEC 243 | 15kV/mm |
| Dielectric Constant | IEC 250 | 13 |
| Volume Resistance | ASTM D 257 | 1.0×10¹²Ω·cm |
| Loss Faction(50Hz) | - | 0.03 |
| Heat Shock(105℃) | - | PASS |
Advantages of Electrical Stress Control Matrices:
1. Excellent Stress Control Performance.
One of the methods which can be quite effective in controlling stress concentration at 15 kV cable joints and terminals and thus, in homogenizing the electric field distribution of the joint, is stress control mastic for electrical. It can be quite helpful, for instance, in reducing stress concentration at the breakpoint of the outer semiconductor layer which would otherwise lead to partial discharge and electrical breakdown, both of which should be considered as very serious issues. This is a way to increase the electrical reliability of the connections at a cable level.
2. Highly Efficient Filling and Sealing.
Our material is highly self-adhesive and has very effective filling properties which allow it to fill up any gaps and irregular areas that occur during installation and to create a sealing layer that is both tight yet flexible. Consequently, this sealing layer efficiently shields against moisture and humidity and, in doing so, it contributes to the durability and long-lasting sealing performance of the cable connection.
3. Excellent Material Compatibility.
Stress resistan electrical technician tape has excellent compatibility and stickiness to polyinsulator cable, various conductors etc. covering materials like lead, copper, aluminum, etc., resulting in enhancement of stability and service life of the joint structure.
4. Adaptability to Complex Operating Environments.
Its water, moisture, oxidation, and thermal resistances will enable the product to function properly and stably for a long period in the temperature range of -20℃ to 90℃ without deteriorating, which is good enough to satisfy both the insulation and sealing requirements for different types of installation surroundings for electrical equipment.
Applications of Electrical Professional Stress Resistant Tape:
1.Power Transmission and Distribution Systems:
This solution is suitable for power cable splices and terminations, which helps to precisely adjust the electrical field distribution and thereby to enhance the insulation reliability and operational safety of distribution networks, substations, and transmission lines.
2. Industrial Electrical Equipment:
This product finds application in cable connections of transformers, switchgear, busbar systems, and industrial equipment in general. Through stress release of electrical fields and the filling and sealing of the installation gaps, it ensures equipment's stable long-term operation.
3. Building and Commercial Power Distribution:
Cables joints and terminations in residential, commercial, office, and public facilities - Can help provide reliable stress control and insulation sealing and also environmental protection
4. Harsh Industrial Environments:
Excellent for use in areas like mines, petrochemical plants, production plants, and many others prone to humidity, dustiness, vibration, or temperature fluctuations. It offers durable insulation protection and tight sealing of the cable joints, hence safeguarding the cables' systems and increasing their overall lifespan.
Why Choose Us?
From the day we opened our factory in 1986, our main goal and effort went into cable accessories and insulation protection products that are mainly research, development, production, and manufacturing. Our 40 years of industrial experience have given us deep knowledge in the study of materials and their production. We are proud of our state-of-the-art factory with nearly 11,000 square meters of production area and over 200 workforces, and a large arsenal of 40 plus professional manufacturing equipment including 4 types of sealant extruders. Through our complete production system, nowadays the monthly capacity output of our water-proof insulation protective sealing tape can be supplied 500,000 meters per month and the big volume orders could be assured on-time and regularly for both local and overseas customers.
We have established a comprehensive quality management system, certified by ISO 9001:2015 (No. 00123Q36311R5M/2200). Our products have obtained international certifications such as CE, SGS, and IEC, and comply with environmental regulations such as RoHS and REACH. For different market access requirements, we can provide relevant testing reports and certification documents to help customers successfully complete product certification and project applications.
If you think quality control is only at the end of a production line, you are very much mistaken. At our production facility quality control is a way of life, from selecting raw materials in the warehouse right up to delivery of the finished goods. All of our products receive type testing from third parties as well as full-process quality inspection by an independent quality testing team before leaving the workshop. For each goods delivery, we will also include product quality inspection reports so that the customers are assured of a good and constant performance of the materials along with their good and constant quality. In addition, we have the capability to support OEM, ODM, and customized services where we come with solutions that fit perfectly and exactly meet the technical specifications, size requirements, and usage environments as demanded by you the customers.
Global Cooperation and Export Experience.
With stable product quality, a mature manufacturing system, and consistent delivery capabilities, Kemister's cable accessories have been exported to numerous countries and regions worldwide, including Saudi Arabia, Turkey, the UAE, Iran, India, the Philippines, Thailand, Indonesia, Malaysia, Brazil, and Argentina. Our tape products are also widely sold in many European countries and regions, accumulating rich experience in project services in the international market.
International Exhibitions and Market Expansion.
In recent years, we have consistently participated in the Hannover Messe in Germany, the Dubai Power & Energy Exhibition in the Middle East, the Shanghai International Power Exhibition, and the Mexico Power Exhibition, showcasing our cable accessories and insulation materials. Through this platform, numerous overseas buyers focused on our product certifications, testing capabilities, and production strength, engaging in in-depth discussions regarding sample testing, OEM cooperation, and bulk purchasing. This laid a solid foundation for the company to further expand into international markets and enhance its global brand influence.
FAQ:
1. Can electrical professional stress resistant tape prevent partial discharge?
It can reduce the risk of partial discharge and improve the insulation performance of cable accessories by homogenizing electrical stress and filling installation gaps.
2. Is electrical insulating adhesive easy to install?
Yes, the product has good flexibility and self-adhesive filling properties, allowing it to adhere to irregular surfaces, facilitating on-site construction and installation.
