Bundling multiple wires into a single unit more
See full version: A Complete Guide to Heat Shrink Tubing
Bundling multiple wires into a single unit more
Identification – the wide range of available colours allow for easy coding [links]
Determining what size heat shrink tubing you will need begins with the diameter of the materials to be covered. [links]
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Lay Flat Width
The inside diameter is the size of open circular cavity inside the heat shrink tubing. You can measure this in millimetres or inches. Do not flatten the circular cavity, this will provide you with an inaccurate size.
The lay flat width is the minimum width of the expanded inside diameter I.D. when the heat shrink is flat. You calculate the lay flat width by multiplying the external I.D. by 1.57, as demonstrated in the image below.
(3:1 shrink ratio: 24.0mm (1” approx.) will recover to 8mm (one-third”) or 67% shrinkage. [links]
This pack contains one 4ft section of each of the following: 1/16″, 3/32″ and 5mm heat shrink tubing. This set should cover insulated wires from size 10 to 30 AWG, depending on the insulation.
This has a 2:1 shrink ratio at about 90-125 degrees C. Polyolefin Tubing. Instructions: While a heat gun is the proper way to shrink the tubing, if you don’t mind scuffing up your soldering iron, the barrel can be held close by to slowly shrink the tubing, too. About wire sizes: Below are tables listing AWG gauge wire sizes in addition to the thickness of common insulated versions of those wires. Insulation thicknesses are not standard, so heat shrink tubing that works on one type of 18 gauge wire may not work on another. Also, stranded wire is usually a little thicker. The sizes below are probably on the small side (they’re based on Alpha PVC hookup wire). Pick a tubing size that has a starting size greater than the wire and a shrunk size less than the wire. AWG Gauge Wire Sizes:
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