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Differences between heat & cold shrinkable cable accesso

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Differences between heat & cold shrinkable cable accesso

Release date:2017-09-12 author:admin Click:

   The design principle of the cable accessories should meet the following requirements:under any natural environment,this product should be safe operation. This requires a combination of the two key factors-sealing and insulation.
   (1)heat & cold shrinkable cable accessories on the differences in sealing
   In fact, the cold shrinkable cable accessories that is flexible cable accessories; is the use of liquid or solid silicone rubber itself, thereby extending the flexibility of the plastic and support bar. To the scene, set to the specified location, extract the support bar to its natural retraction. This product has a good "elastic", can avoid the "cable breathing" caused by the gap between the insulation, which causing the accident. While the heat shrinkable cable accessories lack flexible is its biggest drawback. So in t some harsh places, cold shrinkable cable accessories is the best choice.
   (2) heat & cold shrinkable cable accessories on the differences in insulation
   Shrink silicone rubber material has a good elasticity, as long as through a reasonable design, its strong resilience with sufficient hold force. Whatever any environment, cold shrink cable accessories are guaranteed to tightly cover the cable. This will be able to prevent water and moisture inhalation, safe creepage distance can be a very good guarantee.
   Heat-shrinkable cable head only in the installation, the temperature can meet its contraction conditions. When the temperature is low, due to the thermal expansion coefficient of the cable and the expansion coefficient of heat shrinkage material is different, it is entirely possible in 80 ° C below the environment delamination, So that water and moisture will enter under the action of breathing, thus undermining the insulation of the system. But the environmental conditions change, because there is no silicone rubber as the flexibility, it will also bring the impact of security, which is the shortcomings of thermal materials.
   According to the above analysis, heat & cold shrinkable cable accessories are essentially different. But as long as the normal conditions of operation can meet the requirements of safety; but with the changes in the environment, cold shrink cable accessories has an unparalleled advantages and disadvantages; In addition, after the completion of the installation ,it has features like beautiful sharp;time saving; anti-pollution and so on.

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