Knowledge analysis of Heat Shrink Tubing BusBar industry

 

The core technology of busbar heat shrink tubing is based on the "shape memory effect" of polymer materials. The base material usually uses polyolefin or polymer alloy, and the linear polymer molecular chains form a stable three-dimensional network structure through high-energy electron beam irradiation or a chemical cross-linking process. During the production process, the material is heated to a highly elastic state and mechanically expanded, then rapidly cooled and set to a glassy state, thus "freezing" its expanded dimensions. When heated to a specific temperature (usually 84°C-120°C) at the construction site, the elastic potential energy locked inside the material is released, and the molecular chains return to their original state when cross-linked, causing the sleeve to shrink tightly in the radial direction and cover the conductor surface. This unique physical mechanism makes it an ideal Heat Shrink Tubing BusBar solution, able to adapt to different shapes of busbars to create a dense protective layer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Busbar heat-shrinkable tubes play multiple protective roles in substations, high and low voltage switch cabinets and bus ducts. It can effectively eliminate short-circuit faults caused by small animals such as rats and snakes, and prevent corrosion of metal busbars by chemicals such as acids, alkalis, and salts, extending the service life of the equipment. For maintenance personnel, the fully covered insulation layer eliminates the safety hazard of accidentally touching the live gap. As power equipment develops towards miniaturization, the use of heat-shrinkable insulating sleeves can significantly shorten the distance between phases and make the cabinet structure more compact. This Customized Busbar Insulating Tube not only solves the problem of insufficient creep distance of traditional porcelain bottle insulators but also prevents flashover accidents caused by ice and snow adhesion, making it an indispensable safety barrier in modern power systems.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As a key insulating component in the power system, busbar heat shrinkable tubes have excellent electrical insulation properties, with a breakdown strength of more than 15kV/mm, which can effectively prevent phase short circuits and ground discharges. In addition to electrical properties, its mechanical strength is also excellent, with tensile strength generally greater than 10.4MPa and elongation at break exceeding 300%, which ensures that Solid Insulation Tubing Busbar can withstand mechanical stress without breaking during installation and operation. In addition, the material has excellent flame retardancy (oxygen index ≥30, compliant with UL94 V-0 standard), produces low smoke and is non-toxic when burned, and has good low-temperature resistance (no cracking at -40°C) and thermal shock resistance, ensuring stable performance in extreme environments.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common busbar heat shrinkable tube voltage levels in the industry include 1kV, 10kV and 35kV, and the shrinkage ratio is usually 2:1 or 3:1. When selecting, it needs to be matched according to the cross-sectional size, voltage level and environmental requirements of the busbar (such as whether it needs to be oil-resistant and ultraviolet-resistant). Although most traditional materials are polyolefin, in specific application scenarios, there are also products with similar insulation requirements, such as Copper Busbar PVC Insulated or Busbar With PVC Insulation. However, heat shrink tubing is more popular because of its ease of installation and sealing. Its standard colors are usually red, yellow, and green (corresponding to three-phase electricity). Black or other colors can also be customized according to needs to meet phase identification or aesthetic needs.

 

 

We specialize in providing high-performance Heat Shrink Tubing BusBar solutions. For the fields of new energy vehicles and energy storage, we have specially launched suitable special insulation protection products to provide you with professional technical support and customized services.