The busbar is an important part of the high-voltage electrical cabinet. The performance of the busbar determines the overall quality and reliability of the electrical cabinet, so the insulation protection of the busbar is also crucial. Recently, many manufacturers of high-voltage electrical cabinets have inquired about whether the busbars of high-voltage cabinets must be heated with shrink tubes. The heat shrink tube manufacturer DUWAI mainly analyzes this issue based on the use of heat shrink tubes in electrical cabinets. Let’s talk about what role the busbar heat shrink tubing plays in the electrical cabinet, and then it’s not too late to decide whether to heat the shrink tubing.

1. The busbar heat shrink tube used on the busbar of the electrical cabinet has very high insulation performance and can effectively shorten the phase spacing in the limited space of the electrical cabinet.

2. Busbar heat shrinkable tubes are available in five conventional colors: red, yellow, blue, green, and black. They can be used to identify phase colors A, B, and C. They are stronger and more reliable than paint.

3. Covering the busbar with heat-shrinkable tubes can very effectively avoid electrical short circuits caused by snakes, insects, rats and ants during their climb and improve safety.

4. It can provide high insulation strength and resistance to electrical carbon marks, and is very suitable for anti-corrosion and insulation protection of busbars.

    Whether the busbar should be covered with heat-shrinkable tubes is not necessary, and there is no standard requirement. It is determined by the user's drawing design technical requirements and the customer's budget. If the insulation requirements and phase spacing requirements are high, it is still very necessary to heat the shrinkable tubes. . It is very helpful to prevent foreign objects. If the above four problems can be solved by adding heat shrink tube, it is still necessary to add heat shrink tube to the high voltage cabinet busbar. At present, busbars use heat shrinkable tubes as insulation materials for up to 80%. Both the insulation performance and the resistance to electrical carbon marks are unmatched by paint, and subsequent maintenance is relatively easy. The insulation of substation busbars and the insulation protection of electrical cabinet busbars are both important, so it is also important to choose a suitable insulation protection product.