Normative evidence for self-built Protective Devices

A separating protective device must fulfill several functions: it must separate the working area of the system and absorb impact forces from both the external and the internal sources.

knowledge For those who build a separating protective device themselves, the EN ISO 14120 standard is relevant.

To prevent the ejection of construction and machine parts from the enclosure, we perform pendulum and ballistic tests. This is crucial for safety assessment to simulate the load on the protective device with impacts. For instance, during operation, machine or tool parts or components may break or become detached during rotational movements.

he protected area defined according to EN ISO 10218-2 is marked by the separating protective device. The robot, in turn, has a restricted space in which it can move. This space is defined constructively, and the fence layout adapts to this confined space. The separating protective device as a boundary device represents an exception and must be carefully considered in the risk assessment.

If there is a risk of impact from a person, the protective device must be able to withstand this force.

This involves the possibility that a person may fall against the separating protective device from the outside, for example, due to tripping. If this cannot be ruled out, it must be demonstrated using the pendulum test that the protective fence can withstand the impact force.

Schematic illustration of a pendulum test

Products

Safety Fence