Today we'll tell you a way to choose the most suitable size of heat shrink tube for your bus bar.When we just know the bus bar size, how can we get the right size of heat shrink tube to protect and insulate the bus bar. You'll know by this passage.

Bus bar heat shrink tubing size selection shrinkage allowance: 20 ~ 30%

How to Select the corresponding heat shrinkable tube for the rectangular bus: Here is a formula

{(length + width)×2} ÷3.14×1.2 ~ 1.3 , Length and width means the long and wide of bus bar

For example ,50*10 rectangular bus bar , according to the formula, we can get the size 49mm ,so we can choose the size 50mm of heat shrink bus bar tube accordingly. 

｛(50＋10)×2｝÷3.14×1.3＝49mm

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