How to Reduce Risks
Risk mitigation methods in ISO 12100 use protective measures aimed at risk mitigation. We will implement these protective measures until risks are at acceptable levels and ultimately aim to reduce them.
These protective measures are roughly divided into those taken by the designer (3-step method) and by the user.
3-step Method (Protective measures taken by designers)
The protective measures taken by designers are known as a three-step method and go in order of priority. They are classified into:
1. Intrinsic safety design measures
2. Safeguarding and additional protection measures
3. Usage warnings
STEP1. Intrinsic safety design measures
First, eliminate or isolate the hazard, or design in a way that reduces its risk.
If reducing the risk through STEP 1’s intrinsic safety design is impossible or insufficient, the following safeguards will be taken.
1. Spatial isolation
Completely isolate hazards with a fixed safety fence
2.Temporary isolation (Stop hazards)
Install a safety fence with an interlock
・ When a hazard can be stopped immediately
Install a door switch, etc.
・ When a hazard cannot be stopped immediately
Install a door switch with an electromagnetic lock, etc.
・ To detect when a person gets too close
Install safety light curtains, etc.
・ To detect whether a person is there
Install a laser scanner, etc.
STEP3. Usage information
If the risk cannot be completely removed or reduced (= residual risk), a warning label will be attached and a description will be given in the instruction manual.