Edge break II – partially tampered glass

Mechanic spot load – shot-term – small / medium intensity

Type of glass	Only partially tampered glass by DIN EN 1863
Examples	Small stones between pieces of glass; Hit by an object; Hammer hit on the glass belt; Other hits or collisions.
Beginning	Edge crack angle in all directions, not upright; Transition angle is not upright; Visible outlet point in the zone of the edge; Possible curvilinear cracks in the break centre.
Lines of process	Beam forms from the edges; From direct to winding break lines; Last till the edge.
End	Last till the edge.
Other features	Often curvilinear cracks occur by the adjacent edge; No break isles, the crack often lasts till the edge of the glass (by DIN EN 1863) and depend upon the size and thickness of the glass.

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