Storage Period And Service Life Of Cold Shrink Cable Accessories
In daily work, we often receive questions from friends and new acquaintances about the shelf life and service life of cold shrink cable accessories. In fact, many people are confused about this issue. Today, I will introduce it to us.
What is the definition of initial shelf life? Many people confuse it with the definition of service life. Simply put, it refers to the maximum effective time for a product from production and manufacturing to application. In other words, gradually from the date of production and manufacturing, within this required time period, the product only needs to be stored according to the manufacturer's regulations. When applied, the performance meets the requirements, which is the manufacturer's commitment to customer service. If it doesn't meet the standards, then it's a quality issue with the product itself, which can be resolved through communication with the manufacturer. The definition of service life is the time that a product can operate smoothly under normal working conditions after installation, which is actually a basic theoretical calculation value. The specific service life is closely related to the actual working conditions, so the service life is only a design concept and not a manufacturer's service commitment. It is one of the references for customers to choose products. If there are any product quality problems during the specific operation, further analysis and inspection will be conducted to determine.
For everyone Cold Shrink Cable Accessories, specifically:
Before installation, because the key to cold shrink cable accessories is expanded from silicone vulcanized rubber, which is a fiber material, it cannot prevent the problem of fiber material aging. There are many aging factors, such as temperature cycling system, ultraviolet light, external chemicals, etc. Fiber materials cannot resist the entire process, just like human aging. Everyone can only choose good "maintenance" measures and try to "remember themselves" as much as possible. Therefore, from the production of raw materials, they gradually enter the aging cycle time. Especially after the expansion of the cold shrink cable, aging will greatly increase the permanent deformation rate of the cold shrink tube. The scope of self folding of cold shrink accessories is limited. If the permanent deformation is too large and exceeds the capacity of the design plan, it may cause quality problems such as failure to install the product in a timely manner. Mainly due to this factor, cold shrink accessories are products with a shelf life that is not easily too long. Generally speaking, after one year of expansion, there will be significant permanent deformation in cold shrink cable accessories. In China, the shelf life of cold shrink accessories is generally one year. In recent years, with the development of technology, especially the improvement of processing technology for silicone vulcanized rubber, the shelf life of some high-quality products can be guaranteed for 2 years. Overseas well-known brand products have a longer shelf life, as indicated by the manufacturer. Therefore, it is suggested that if you choose to purchase cold shrink cable accessories, try to apply them within six months as much as possible, without having to leave them on the table for a long time. At the same time, it is necessary to scientifically arrange the procurement plan based on the construction period. In addition, if the storage is not reasonable, such as long-term storage in areas with large and rapid temperature differences, long-term exposure to hot sources, and long-term exposure to high temperatures, it will greatly endanger the shelf life of cold shrink cable accessories. There are also situations where the temperature is relatively cold, such as in the extremely cold regions of Russia. Due to the low temperature, the ultra-low temperature ductility of silicone gel will be manifested, which will greatly endanger the contraction performance of cold shrink cable joints, and even make them unusable. After installation, brittle cracking may also occur. This is also because in cold regions like Russia, it is difficult to promote the use of cold shrink raw materials.
After installation: Due to the various and complex natural environments in which the cold shrink cable accessories are used, they may be affected by the operation of the route itself and environmental factors. In addition to the quality factors of the cold shrink cable accessories themselves, environmental factors are likely to be critical factors in their service life, such as external factors causing the cold shrink cable accessories to crack. But no matter how good the car is, it still needs to be persistently maintained and serviced well. It hurts a lot, only then can it be as good as new two years later.
These aspects of communication shrink tubing products are similar to those of shrink cable accessories, so there is no need to elaborate further.
