Safety Distance Calculator for Reaching over Protective Structures (ISO 13857)
According to ISO 13857, low risk means that, according to the risk analysis, no long-term or irreversible damage (injuries) can result from exposure to the hazard.
a = height of hazard zone
b = height of protective structure
c = horizontal safety distance to hazard zone
1 = hazard zone (nearest point)
2 = reference plane
3 = protective structure
A protective structure smaller than 100 cm is not desirable because it does not offer sufficient protection. The protection could easily be bypassed by stepping over it.
If a protective structure smaller than 140 cm is chosen for a high-risk machine, additional safety measures must be taken.