Calculation wizard for the height of a fixed guard for applications with low risk acc. to DIN EN 13857

Application:

Given are:
• Height of hazard area (a)
• Horizontal safety distance to hazard area (c)

To be determined:
• The required height of protective construction (b)

  • Look for the line with the specification of the hazard area height in the left column.
  • In this line, look for the column with the same specification for horizontal safety distance to hazard area.
  • The required height of the protective construction is up top in the column head. In case of interim values, the higher value of the protective construction must be used.
Height of the protective construction (b)
100012001400160018002000220024002500
Height of
hazard area (a)
Horizontal safety distance
to hazard area (c)
2500000000000
24001001001001001001001001000
220060060050050040035025000
20001100900700600500350000
1800110010009009006000000
1600130010009009005000000
1400130010009008001000000
12001400100090050000000
10001400100090030000000
8001300900600000000
60012005000000000
40012003000000000
20011002000000000
011002000000000

Obstacles with a height under 1000 mm are not included since they do not satisfactorily limit the movement.

However, when it is foreseeable that people will try to reach the point of operation or the danger zone, and, by doing so, create risk of serious injury, it is necessary to:

  • Use the values from the high risk calculator or...
  • Take additional safety-related measures.

Keywords: Safety distance calculation