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The sealing failure of right angle heat shrink boots after installation is usually not a problem with the product itself, but is caused by surface contamination, insufficient or uneven heating, deviation in installation position, and failure of hot melt adhesive to form an effective glue line. It needs to be installed and inspected in accordance with product technical requirements. Recovery, fitting and sealing status.

To​‍​‌‍​‍‌ choose the right heat shrink right angle/in-line bushing boot, it all comes down to determining where exactly the cables would run after exiting the equipment interface. For the situations where the wire would be going straight after the junction, the straight-through type would be ideal. However, the preformed a right-angle type boot would be the choice for the wires that need to go sideways, downwards or make a sharp ​‍​‌‍​‍‌turn.

There​‍​‌‍​‍‌ is a lot to consider when picking out heatshrink bushing boot kits - the outer diameter of a cable, for example, is one thing, but it is not enough. At the time of making the purchase, what you should know are: the actual outside diameter of the cable being covered in question, the maximum size that the joint can be, the size of the equipment interface, the coverage length required and the direction that the cable is running away from. Then, after this, you also have to take into consideration the shrinkage ratio and whether it is going to be a right-angle or a straight-through type of structure. ​‍​‌‍​‍‌

When purchasing cable feedthroughs for sealed protection, in addition to price, we should also focus on specification coverage, customization capabilities, batch delivery stability, technical data support, and packaging and transportation guarantees.

Proper​‍​‌‍​‍‌ installation of heat shrinkable cable feed-through basically boils down to five steps: first, make sure the size fits; second, clean the surface; third, get it correctly positioned before applying heat; fourth, kill two birds with one stone by heating it evenly to make it fully retract; and fifth, after the cooling, do the sealing condition ​‍​‌‍​‍‌check.

The​‍​‌‍​‍‌ starting point of this process is the actual outer diameter of the cable. The through-wall hole size, installation structure, product shrinkage ratio, retracted size and sealing requirements should all be taken into account together in order to select a fit and reliable sealing specification if you are using heat-shrinkable ​‍​‌‍​‍‌feedthroughs.

There​‍​‌‍​‍‌ are several factors you should consider, and they include the size, which is usually the outer diameter of the trunk/branch cable, number and location of the branches, and coverage length of the boots, while the performance requirements mainly refer to the heat shrink properties after recovery, mechanical properties after shrinkage, electrical characteristics at normal and elevated temperatures, thermal aging resistance, flame retardancy, and of course the ​‍​‌‍​‍‌material.

Heat​‍​‌‍​‍‌ shrink tubing, in the form of heat shrink sleeves, is recommended only for linear joints, heat shrink molded boots are, however, the best choice when it comes to corners and branch points as well as other complex areas involving odd shapes requiring special treatments. It is imperative that cable technicians make the right choice by finding the suitable product that completely matches the actual physical shape and dimensions of the connection they want to provide with a cover of the protective ​‍​‌‍​‍‌sleeve.

The​‍​‌‍​‍‌ shrinkage ratio is a measure that basically informs whether heat shrink molded boots can be smoothly introduced onto and tightly fit around the protected area. It is the main criterion in selection besides others which should also cover size, mechanical and electrical ​‍​‌‍​‍‌properties.

When​‍​‌‍​‍‌ buying the bushing cover, first of all the main thing is to determine size compatibility, insulation capability, environmental suitability and ease of installation, then to make judgment and selection of the right type mainly based on technical data and sample tests instead of price ​‍​‌‍​‍‌only.