The Use Of Low-voltage Cable Heat Shrinkable Tube In The End Is What?

There are two types of low-pressure thermal casing in operation, one of the main insulated cable core between the bare wire and a full set of the intersection with the existing insulation is not less than 20mm, outer sheath after tightening put; Second the outer protective layer, the same should intersect with the original outer protective layer is not less than 20mm, if possible, where moisture ingress, the intersection needs Tu (heat shrink tubing only) sealant.