Heat shrink tube is one of the best choices for wire insulation. In addition to excellent insulation, it has many other useful features, such as the ability to bundle cables, add stress relief or specific color code wires.
In the purchase of heat shrinkable tube, often purchasers ask about the relevant technical parameters of heat shrinkable tube. In the last article, we mainly introduced the internal diameter, wall thickness, shrinkage rate and related indexes of the initial shrinkage temperature of the heat shrink tube. This paper will introduce the complete shrinkage temperature and working temperature of the heat shrink tube, two technical indexes.
Heat shrinkable tube is not an important device in circuit design, but it is responsible for protecting the circuit and important devices in the circuit. But only according to the appropriate size in the selection of heat shrink tube, in order to maximize the protection of the circuit.
In recent years, the application of cold-shrinkable cable accessories has been gradually widespread, and more and more purchasers come to make inquiries. However, because the parameters such as cross-sectional area are not provided in place, the suppliers are not clear about the specific specifications and sizes, leading to difficulties in supply. Next, let's understand the relationship between cold shrink cable accessories and cable cross-sectional area. To help purchasers better understand the procurement rules.
Cable accessories require that, first of all, the core connection is better, the contact resistance should be small and stable, can withstand the impact of fault current, the joint resistance in operation is not greater than 1.2 times of the resistance of the cable core itself.
Cold shrinkable cable accessories itself shrinkage range is limited, if the permanent deformation is too large, more than the design margin, it may occur shrinkage is not in place installation quality problems.